CN101209518A - Solid wire - Google Patents
Solid wire Download PDFInfo
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- CN101209518A CN101209518A CNA2007101886486A CN200710188648A CN101209518A CN 101209518 A CN101209518 A CN 101209518A CN A2007101886486 A CNA2007101886486 A CN A2007101886486A CN 200710188648 A CN200710188648 A CN 200710188648A CN 101209518 A CN101209518 A CN 101209518A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0261—Rods, electrodes, wires
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/404—Coated rods; Coated electrodes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
Abstract
A solid wire contains in mass percent C 0.005 to 0.080%, Si 0.30 to 1.20%, Mn 1.15 to 1.65%, S 0.050 to 0.200%, P 0.017% or less, O 0.0070% or less, and N 0.0050% or less, wherein C+(P*5)<=0.135 mass percent is satisfied, and the remainder includes Fe and impurities, and the content of each of Ti, B, Cr, Ni, Nb, V, Zr, La and Ce as the impurities is controlled to be a certain content or less, and the amount of adhered oil on a surface of the relevant solid wire is controlled to be 1.2 g or less per wire of 10 kg. According to such a configuration, while increase in welding cost is controlled to the minimum, stability of wire feed, burn-through resistance, undercut resistance, and crack resistance becomes excellent, slag and spatter becomes hard to be generated, hardness of weld metal becomes equal to or higher than that of base metal, and brittle fracture becomes hard to occur.
Description
Technical field
The present invention relates to be used for the solid core welding wire of arc welding, relate to be applicable to the solid core welding wire of the carbon steel of thin plate arc welding in more detail.
Background technology
In recent years, from the viewpoint of environmental problem, strong about the requirement that the fuel efficiency of motor vehicle is improved.In order to conform to this, the steel plate that uses is replaced with high-intensity steel plate more than the tensile strength 400MPa from the mild steel below the existing tensile strength 300MPa, be pushed into to realize light-weighted trial thereby reduce thickness of slab.
At this, if reduce thickness of slab, though then almost no problem in dot welding method, in arc-welding process, because of arc heat can cause steel plate fusion perforate, so-called burn-off takes place easily.
In addition, the high strength of steel generally is the cooling control when rolling and increases the amount of element of adding in the steel plate and reach, the viscosity in the molten bath when but the increment that adds the element in the steel plate to can improve arc welding, the amalgamation deterioration, thereby weld toe can be lost thickness, and so-called undercut easily takes place.
In addition, aspect welding procedure, if improve the efficient of welding and strengthen speed of welding, then with respect to the molten bath electric arc in advance, electric arc will directly be run into fusion face easily, burn-off is easy to take place thus.In addition, even be unlikely to burn-off, when the inboard that melts to soldered sheet material (also being called penetration), heat cracking very easily takes place.
Also have, at the raising of falling property of refractory, the spy opens the main idea recorded and narrated in 2001-96392 number, uses the following thin footpath welding wire of 0.9mm of having stipulated the electrical impedance rate, and the heat energy of the deposited amount of the unit of making reduces, and makes burn-off be difficult to take place (promptly improving falling property of refractory) thus.
In addition, specially permit the main idea of recording and narrating in No. 2922814 and be Si+Mn, the Si of regulation welding wire * (Si+Mn), contain the O of minute quantity (3～7%) among this external Ar
2Gas improves falling property of refractory thus.This technology has been utilized the synergy of following two kinds of effects, promptly passes through the appropriate electrical impedance rate that improves welding wire with heat energy that reduces the deposited amount of unit and the ratio that passes through the Ar of raising protective gas, thereby reduces to fuse the degree of depth.
In addition, opening flat 9-94667 number and specially permit the main idea of recording and narrating in No. 3345883 the spy is to use the special welding power supply mouth that is equipped with pottery at front end.This is the electrical impedance heat release that takes place between the energising point of the front end of welding power supply mouth and electric arc origination point in order to improve, thereby reduce the heat energy of the deposited amount of unit, improve falling property of refractory thus, reduce by electric current simultaneously and suppress arc force, to suppress the generation (that is, improving anti-undercut) of undercut
In addition, opening the main idea of recording and narrating in 2005-254284 number the spy is to use Ar and CO as protective gas
2, wherein mix a large amount of (5.5～15%) O
2Thereby, change the molten bath to flow path direction, make anti-undercut raising thus.
Also have, knownly on the experience all the time can improve falling property of refractory and anti-undercut by carrying out downward welding in the vertical position, but known under the prerequisite that the welding posture is limited, if, then cause the pilosity that hangs and splash of welding bead, therefore be difficult to control down to the angle surplus.
Yet the spy opens the welding wire in 2001-96392 number described this thin footpath because thin footpath and buckling easily, and welding wire give poor stability, therefore the such problem of weld job difference is arranged.In addition, the welding wire in this thin footpath is because of its cost height, so also have the cost of thing followed welding to improve such problem.
In addition, in speciallyying permit the welding wire monomer described in No. 2922814, can not solve this problem of falling property of refractory difference.In addition, improve the ratio of the Ar of protective gas if so, then the cost of protective gas uprises, and therefore has the cost of corresponding welding to improve such problem.
On the other hand, the spy open flat 9-94667 number and No. 3345883 described this arc welding of special permission in because use special welding power supply mouth, so the cost of tip uprises, the cost that causes welding improves.
And, in the spy opens 2005-254284 number described arc welding method, because use special protective gas to cause the cost of protective gas to uprise; therefore there is the cost of welding to improve such problem thereupon; in addition, because the oxygen amount is many, so the slag and a large amount of generation of splashing.Molten slag and the existence of splashing cause the coating deterioration of weld part.In addition, cause field trash to increase, also have the such problem of heat cracking (being that anti-crackle is poor) that takes place easily along with the contained oxygen amount of weld metal significantly increases.
And, except the problems referred to above,, also require weld metal to have and hardness that mother metal is equal above for the general plate sheet welding of common property is arranged, fragile destruction can not taken place, have the good stability of giving that can weld swimmingly.
Summary of the invention
The present invention forms in view of above-mentioned problem, its purpose is to provide a kind of solid core welding wire, but it is the cost raising of Min. ground inhibition welding both, simultaneously welding wire gives stability, falling property of refractory, anti-undercut, anti-crackle excellence, slag is difficult to take place with splashing, and weld metal has and the equal above hardness of mother metal, thereby fragile destruction can not taken place.
Solved the solid core welding wire of the present invention of described problem, it is the solid core welding wire that uses in order to carry out arc welding, wherein, containing C is 0.005～0.080 quality %, Si is 0.30～1.20 quality %, Mn is 1.15～1.65 quality %, S is 0.050～0.200 quality %, respectively P is suppressed at below the 0.017 quality %, O is suppressed at below the 0.0070 quality %, N suppresses below the 0.0050 quality %, and satisfy (C content)+{ (P content) * 5}≤0.135 quality %, to be defined in below the 0.15 quality % as the Ti of impurity respectively, Zr is defined in below the 0.10 quality %, B is defined in below the 0.0050 quality %, Cr, Ni, Nb, V, La and Ce are defined in below the 0.20 quality %, and the oily adhesion amount on this solid core welding wire surface is defined as with every 10kg welding wire counts below the 1.2g.
Solid core welding wire of the present invention by stipulating each composition as above-mentioned mode, can significantly reduce the viscosity and the surface tension in molten bath, can make the molten bath form very deeply when arc welding.Thus, can obtain to relax the barrier action of arc force, the fusion degree of depth is reduced, therefore can make the raising of falling property of refractory.
In addition, its anti-crackle of solid core welding wire of the present invention is also good, and the generating capacity of slag and the generating capacity that splashes can not increase yet, and anti-undercut is also good.
Solid core welding wire of the present invention, preferably containing Mo is below the 0.30 quality %.
Solid core welding wire of the present invention by containing Mo in specific scope, can make the intensity of weld metal improve.
Solid core welding wire of the present invention, preferably containing Al is 0.006～0.040 quality %.
Solid core welding wire of the present invention by containing Al in specific scope, can carry out so-called oxygen and take off processing and make anti-crackle raising.
Solid core welding wire of the present invention preferably makes welding wire surface adhere to K, Li, Na and Ca total and counts 0.005～0.300g with every 10kg welding wire.
Solid core welding wire of the present invention, by making its surface coating with coating and mode such as adhere to and adhering at least a kind of element from such group, selecting, owing to contain at described particular range, thereby electronic emission is easy, is therefore using Ar and oxidizing gas (O
2And CO
2Deng) welding in, this element plays a role as arc stabilizer.Therefore, the long variation of electric arc can be suppressed, falling property of refractory can be further improved.
Solid core welding wire of the present invention preferably makes welding wire surface adhere to MoS
2Count 0.01～1.00g with every 10kg welding wire.
Solid core welding wire of the present invention is by making its surface coating and adhering to MoS with coating and mode such as adhere to
2And contain in specific scope, the hot sticky minimizing of moment of energising point thus, impedance reduces, and therefore can improve the stability of giving of solid core welding wire.
Solid core welding wire of the present invention also can be implemented copper facing at welding wire surface.
By the solid core welding wire of the present invention that is covered with copper facing, can realize the raising of the abrasion performance of the raising of resistance to rust, the tip of switching on, the productive raising that the raising effect of stringiness was brought when welding wire was produced, and thing followed cost degradation etc.
Also have, solid core welding wire of the present invention also can be welding wire surface not to be implemented copper-plated no copper plating soldering wire.Because unreal plating copper, the electrical impedance of conducting parts rises, the effect of bringing the temperature when making welding wire arrive the electric arc nidus to increase because of heating effect, so welding wire is in meltable state.Because the welding wire that the only enough fusings of the electric current that the source of welding current is supplied with are fed to so the welding wire of meltable state can be realized low currentization, regularly can reduce heat energy in fusion amount one.Therefore, can further reduce the fusion degree of depth, also can weaken arc force, therefore can make anti-undercut raising.
According to solid core welding wire of the present invention, both but Min. ground suppressed the cost raising of welding, simultaneously welding wire gives stability, falling property of refractory, anti-undercut, anti-crackle excellence, slag is difficult to take place with splashing, and weld metal has and the equal above hardness of mother metal, thereby is difficult to take place fragile destruction.
Description of drawings
Fig. 1 is the figure of the state of medelling ground expression arc welding, (a) is that the expression of medelling ground uses existing solid core welding wire to carry out the figure of the state of arc welding, is that the expression of medelling ground uses solid core welding wire of the present invention to carry out the figure of the state of arc welding (b).
Fig. 2 is the figure of the oil of the explanation surface attachment that makes solid core welding wire influence that arc shape, falling property of refractory and anti-undercut are caused.
Fig. 3 is used to illustrate that make C and the P that carry out in order to finish solid core welding wire of the present invention are in the figure of suitable content range.
Fig. 4 is the figure of the definition of the explanation of lap fillet welding test and being used to the degree of depth that undercut is described.
Fig. 5 is used for illustrating the figure of the evaluation of anti-crackle as the crackle of evaluation object.
The specific embodiment
Next, the mode for the best that is used to implement solid core welding wire of the present invention is described in detail.
Molten bath when present inventors are conceived to aforesaid downward welding in the vertical position and the movement of weld metal, which kind of think if no matter be postures such as horizontal welding, downhand welding, laterally weldering, up hill welding, upward welding in the vertical position, molten bath and weld metal can both obtain and aforementioned same movement, then can weld better, and carry out research with keen determination at this point.
At first, with reference to Fig. 1～Fig. 3, describe for the principle of the completed solid core welding wire of the present invention of present inventors.In the reference accompanying drawing, Fig. 1 is the figure of the state of medelling ground expression arc welding, (a) being that the expression of medelling ground uses existing solid core welding wire to carry out the figure of the state of arc welding, is that the expression of medelling ground uses solid core welding wire of the present invention to carry out the figure of the state of arc welding (b).Fig. 2 is the figure of the oil of the explanation surface attachment that makes solid core welding wire influence that arc shape, falling property of refractory and anti-undercut are caused.Fig. 3 is used to illustrate that make C and the P that carry out in order to finish solid core welding wire of the present invention are in the figure of suitable content range.
Shown in Fig. 1 (a), in the arc welding of the steel plate that has used existing solid core welding wire 3 (thin plate) 1, viscosity, the surface tension in molten bath 6 are big.Therefore, the protuberance P in arc force and the surface tension molten bath 6 of causing
1With respect to gravity P
2Become big, so the gravity P in molten bath 6 self
2The landing that causes diminishes.That is 6 degree of depth L of the molten bath under the electric arc,
1Little, fusion degree of depth L
2Become big.
In addition, tip 2/ solid core welding wire 3 is from 3 energising points (mainly being the front end of tip 2) to the so-called ledge A of the origination point of electric arc 5 with the impedance heating step-down of the formed molten drop of front end 4 self.
Therefore, present inventors find, shown in Fig. 1 (b), when having used existing solid core welding wire 3 to carry out the downward welding in the vertical position of arc welding of steel plate (thin plate 1), under the gravity effect, move just down from electric arc 5 rears to electric arc 5 in molten bath 6, promptly, under electric arc 5, often be formed with very dark molten bath 6, can bring into play the barrier action that relaxes arc force, will be difficult to take place burn-off (raising of falling property of refractory) thus.In addition we know, even undercut takes place on moment property ground, the landing effect in the molten bath 6 that gravity causes also can be brought into play very big effectiveness, makes the weld metal in molten bath 6 flow into the place that undercut has taken place for this, therefore undercut meeting disappearance (raising of anti-undercut) when solidifying.
This be because, evolve if stand downwards, then from electric arc 5 just down to weld formed molten bath 6, rear fall under the electric arc 5 to power strong, so degree of depth L in the molten bath under the electric arc 56
1Become big,, fuse degree of depth L and make by making it to bring into play the effect of defence arc force
2Reduce.
The discovery that present inventors study with keen determination, by improving the electrical impedance of solid core welding wire self, with the impedance heating that improves ledge and molten drop self temperature is improved, weld heat energy by the fusion that the reduction arc heat causes to reduce, and the viscosity in molten bath and surface tension are significantly reduced by making solid core welding wire become to be grouped into suitableization, excavate the gravity effect of bringing into play in the molten bath fully, thereby even adopt downward welding in the vertical position posture in addition also can realize aforesaid mechanism.
Also have, in the stage of research, as can be known if pass through the high oxidation of known gas componant in the past, with as the composition of solid core welding wire and this method of reduction of the strong deoxidation composition of Si that is contained and Mn etc. and carry out high oxidation, thereby the viscosity in molten bath and surface tension are reduced, then the deterioration of the generation of a large amount of generations of slag, pore, weld bead shape, the such problem pilosity of increase that splashes.
Present inventors also find, as the method for improving this problem, by adding S in right amount more, can make slag and splash and be difficult to take place, the shape of welding bead is kept under the good state, can significantly reduce the viscosity and the surface tension in molten bath, and as shown in Figure 2, for the purpose of guaranteeing giving property, the oil that the surface of solid core welding wire is coated with (adhering to) is thermal decomposited when welding, at this moment can fight for heat from electric arc, thereby reduce arc temperature, therefore cause electric arc to tighten, heat is strong to concentrating of mother metal, and the expansion variation of motlten metal, thus make falling property of refractory and anti-undercut deterioration, and the fusion degree of depth increases and solidification cracking is taken place easily.Therefore as can be known, seldom fixed by the gauge of oil that the adhering on surface of solid core welding wire, can expand the electric arc scope, further encourage and contain the effect that S is brought with high-load.
But be known that usually then solidification cracking will take place easily if contain S with high-load, produce, for example in JIS Z3312, have the upper limit to be defined as 0.030 quality % S in order not make solidification cracking.
What present inventors studied found that, as shown in Figure 3, by setting the upper limit of C and P respectively, further strictly C and P are suppressed at the existing scope (higher limit of C: 0.15 quality % of JIS Z3312 defined, the higher limit of P: 0.030 quality %), and satisfy simultaneously by (C content)+{ value that (P content) * 5} calculates is following this condition of 0.135 quality %, also can not produce solidification cracking even then contain S with high-load.
Present inventors have finished the solid core welding wire of the present invention that is fit to carry out arc welding under this discovery.
The completed solid core welding wire of the present invention of present inventors, containing C is 0.005～0.080 quality %, Si is 0.30～1.20 quality %, Mn is 1.15～1.65 quality %, S is 0.050～0.200 quality %, respectively P is suppressed at below the 0.017 quality %, O is suppressed at below the 0.0070 quality %, N suppresses below the 0.0050 quality %, and satisfy (C content)+{ (P content) * 5}≤0.135 quality %, surplus is made of Fe and impurity, to be defined in below the 0.15 quality % as the Ti of impurity respectively, Zr is defined in below the 0.10 quality %, B is defined in below the 0.0050 quality %, Cr, Ni, Nb, V, La and Ce are defined in below the 0.20 quality %, and the oily adhesion amount on this solid core welding wire surface is defined as with every 10kg welding wire counts below the 1.2g.
Below, describe for the reason of numerical definiteness in the solid core welding wire of the present invention.
(C:0.005～0.080 quality %)
C has deoxidation, and the effect of the intensity that improves weld metal is arranged.Because in plate sheet welding, need not carry out the multilayer welding, so do not need to consider because of the hot intensity reduction that causes again, even under very low addition, also can access general employed mild steel below 300MPa to the high-strength steel sheet (high-tensile steel) of 590MPa level this with mother metal the intensity more than equal.
But, if being reduced to, the content of C is lower than 0.005 quality %, then only can reach the intensity that is applicable to mild steel and do not have versatility.Therefore, C need contain more than the 0.005 quality %.
On the other hand, if the content of C uprises, then as described above, the remarkable deterioration of anti-crackle.In addition, then near the outburst of CO electric arc, becoming of not only splashing is many, and the generation of flue dust also becomes many.In addition, because the deoxidation surplus, so the oxygen in molten bath reduces, the viscosity and the surface tension in molten bath uprise.Therefore, the barrier action that relaxes arc force reduces falling property of refractory and the easy variation of anti-undercut.Therefore, add and guarantee that anti-crackle, C need contain below the 0.080 quality %, preferably contain below the 0.050 quality %.
(Si:0.30～1.20 quality %)
Si is used to guarantee that intensity is needed, improves the effect of the electrical impedance of solid core welding wire on the other hand in addition.When being lower than 0.30 quality %, intensity reduces, and becomes the intensity that all can not be suitable for except that mild steel.In addition, because the electrical impedance of solid core welding wire becomes too small, so the current value of the unit amount of giving rises.Consequently, because heat energy uprises, so falling property of refractory and the easy variation of anti-undercut.Therefore, Si need contain more than the 0.30 quality %.
On the other hand, if the content of Si surpasses 1.20 quality %, then deoxidation surplus, the oxygen in molten bath reduces, and viscosity, the surface tension in molten bath uprise.Therefore, the barrier action that relaxes arc force reduces falling property of refractory and the easy variation of anti-undercut.In addition, if the Si surplus, then weld metal embrittlement, weld part might be lost viability.Therefore, Si need preferably contain below the 0.75 quality % for below the 1.20 quality %.
(Mn:1.15～1.65 quality %)
Mn guarantees the needed element of intensity, the effect that improves the electrical impedance of solid core welding wire on the other hand in addition.If the content of Mn is lower than 1.15 quality %, then intensity reduces, and becomes the intensity that all can not be suitable for except that mild steel.In addition, because the electrical impedance of solid core welding wire becomes too small, so the current value of the unit amount of giving rises.Consequently, because heat energy uprises, so falling property of refractory and the easy variation of anti-undercut.In addition, if Mn crosses weld metal embrittlement at least, might lose the viability of weld part.Therefore, Mn need contain more than the 1.15 quality %.
On the other hand, if the content of Mn surpasses 1.65 quality %, then deoxidation surplus, the oxygen in molten bath reduces, and viscosity, the surface tension in molten bath uprise.Therefore, the weld metal in molten bath is difficult to drop under the electric arc, therefore is used to relax the barrier action reduction of arc force, falling property of refractory and the easy variation of anti-undercut.In addition, because also a large amount of slag that takes place, so the coating deterioration.Therefore, Mn need contain below the 1.65 quality %.
(S:0.050～0.200 quality %)
S is most important element in the present invention, has the viscosity in realization molten bath and the effect that surface tension reduces.By containing S with suitable content, even when going ahead of the rest, also be easy to obtain to relax the barrier action of arc force by viscosity and the low molten bath of surface tension with respect to molten bath electric arc, therefore can make falling property of refractory and anti-undercut raising.In order to obtain such effect, need contain S is more than the 0.050 quality %, is preferably more than the 0.080 quality %.
On the other hand, if the content of S surpasses 0.200 quality %, then be not only the molten bath, and also reduce greatly in the surface tension of the formed molten drop of front end of solid core welding wire, it is spherical that molten drop can't keep.In addition, combine with the molten bath that forms superfluous thickness, even be provided with electric arc length very long, still can cause short-circuit condition, it is very many therefore to splash.In addition, even the adjustment by other elements can not realize the raising of anti-crackle, be very easy to take place heat cracking when melting to steel plate inboard.In addition, the viscosity in molten bath excessively reduces, and welding bead is easily sagging under the gravity effect, is difficult to form welding bead, the easy variation of anti-undercut in the upper plate side of lap fillet welding.In addition, weld metal also can embrittlement, the also viability of possible loss weld part.Therefore, S need contain below the 0.200 quality %.
(P:0.017 quality % is following)
P is the same with C, because can significantly make anti-crackle deterioration, so preferably do one's utmost to reduce.In JISZ3312, allow to reach 0.030 quality %, but in the present invention, owing to improved the content of S, so the content that will reduce P relatively is to improve anti-crackle.If the content of P surpasses 0.017 quality %, when then melting to steel plate inboard, solidification cracking takes place easily, therefore need make its content is below the 0.017 quality %.But be necessary as described later, and further reduce its upper limit according to the content of C.Also have, if P to contain quantitative change many, then also join and the embrittlement of weld metal, this phenomenon of increase of the generating capacity that splashes take place.
(O:0.0070 quality % is following)
In order to suppress because of adding the reduction of the anti-crackle that S causes, and need limit O seldom.If the content of O surpasses 0.0070 quality %, molten bath high oxidation then, the field trash pilosity, thus crack, in addition, slag takes place in a large number.Particularly when actively adding S, be necessary to pay attention to guaranteeing of anti-crackle, therefore also need strict restriction O.Also have, if it is the content of O surpasses 0.0070 quality %, then no problem for falling property of refractory, and the viscosity in molten bath excessively reduces on the other hand, welding bead is sagging easily under the gravity effect, lap fillet welding the upper plate side be difficult to form welding bead, the easy variation of anti-undercut.Therefore, O is below the 0.0070 quality %.
(N:0.0050 quality % is following)
N is the element that need limit because of the reduction of adding the anti-crackle that S causes in order to suppress.If the content of N surpasses 0.0050 quality %, then can weaken the adhesion of crystal grain boundary, and field trash at most, thus crackle can take place.Particularly when actively adding S, be necessary to pay attention to guaranteeing of anti-crackle, therefore also need strict restriction N.In addition, if the content of N surpasses 0.0050 quality %, then weld metal embrittlement, the viability that can lose weld part.In addition, if the content of N surpasses 0.0050 quality %, then the viscosity in molten bath excessively reduces, and welding bead is sagging easily under the gravity effect, lap fillet welding the upper plate side be difficult to form welding bead, the easy variation of anti-undercut.Therefore, N need be for below the 0.0050 quality %.
((C content)+(P content) * 5}≤0.135 quality %)
In order to prevent to contain the deterioration of the anti-crackle that S causes, must give special heed to C and P because of high-load.As described above, though stipulated the higher limit of C and P respectively individually,, because crackle takes place when high in two kinds of elements easily, so must avoid both sides to be high-load.If by (C content)+value that (P content) * 5} calculates is below the 0.135 quality %, and then anti-crackle can deterioration, and in view of the above with this as higher limit.
(surplus is Fe and impurity)
And the surplus of solid core welding wire of the present invention is made of Fe and impurity.In the present invention, with Ti, B, Cr, Ni, Nb, V, Zr, La and Ce as impurity and stipulate that it allows content.To be defined in as the Ti of impurity respectively below the 0.15 quality %, Zr is defined in below the 0.10 quality %, and B is defined in below the 0.0050 quality %, and Cr, Ni, Nb, V, La and Ce are defined in below the 0.20 quality %.
If the content of Cr, Ni, Ti, Nb, V, Zr, La, Ce increases, then the viscosity in molten bath and surface tension uprise.Consequently, melt metal is difficult to drop under the electric arc in the molten bath, and the barrier action that therefore relaxes arc force reduces, not only falling property of refractory and the easy variation of anti-undercut, and also it is also multiple to splash.In addition, because oxidation can take place the element beyond the Ni,, make the coating deterioration so slag also takes place in a large number.In addition, if the content of B increases, the easily remarkable deterioration of then anti-crackle.
That is, these elements are the impurity that is harmful in this application, even add the advantage that also is not directed to the object of the invention energetically, therefore described element is preferably seldom.In the present invention, respectively Ti is defined in below the 0.15 quality %, Zr is defined in below the 0.10 quality %, and B is defined in below the 0.0050 quality %, and the content of Cr, Ni, Nb, V, La, Ce is defined in below the 0.20 quality %.More preferably Ti, Cr and Ni are defined in below the 0.05 quality %, and Nb, V, Zr, La and Ce are defined in below the 0.01 quality %, and B is defined in below the 0.0030 quality %.Also have, these elements can be contained in common parent metal inevitably, if but in aforementioned range, then allow to contain in solid core welding wire of the present invention.
(the oily adhesion amount on this solid core welding wire surface is for counting below the 1.2g with every 10kg welding wire)
On the surface of solid core welding wire, for improving sliding so that purposes such as giving property raising generally can be coated with (adhering to) oil.But Fig. 2 illustrates as reference, and oil is thermal decomposited when welding, at this moment can fight for heat from electric arc, reduces arc temperature.If electric arc has been captured heat, then can make electric arc tighten (density of arc column improves), the character that makes the arc temperature stabilisation such is arranged.If be in this state, then the shape of electric arc (taper shape) attenuates, and the electric arc scope is narrow.Consequently, heat is concentrated to mother metal strongly, and the expansion variation of melt metal and make falling property of refractory and anti-undercut deterioration, and the fusion degree of depth increases and solidification cracking takes place easily.
Therefore, in the solid core welding wire of the present invention of paying attention to falling property of refractory and anti-undercut, the few method of the amount of the oil that preferably adheres to (oily adhesion amount).By reducing oily adhesion amount, then arc temperature can be do not reduced, thereby broad electric arc can be guaranteed, can bring into play the expansion and because the reduction of the fusion degree of depth that the arc force dispersion brings in the molten bath of bringing effectively by the content that improves S.
In addition, oily adhesion amount is in coating weight, if every 10kg solid core welding wire surpasses 1.2g (amount=1.2/10kg of oily adhesion amount/solid core welding wire (promptly 0.012%)), then electric arc tightens, so as described above, falling property of refractory and anti-undercut deterioration.In addition, the C that produces owing to the living thermal decomposition of fry dried food ingredients is included in the added metal, causes anti-crackle reduction.
Therefore, in the present invention, the oily adhesion amount on the surface of solid core welding wire need be defined as, and is below the 1.2g with respect to this solid core welding wire of 10kg.
Also have, for example, have guaranteeing of giving property that bending gives the solid core welding wire in the welder of portion, can be with being coated with MoS
2Guarantee and copper-plated solid core welding wire is not implemented on the surface.Also have, the kind of the oil of coating, vegetable oil, animal oil, mineral oil all can use usefulness.
In addition, solid core welding wire of the present invention, in aforesaid chemical composition, also can contain Mo again is below the 0.30 quality %, Al is 0.006～0.040 quality %.
(Mo:0.30 quality % is following)
Mo can improve the intensity of added metal.Although the effective lower limit of this effect does not have special provision, contain more than the 0.05 quality % and then can obtain aforementioned effect significantly.
On the other hand, if the content of Mo surpasses 0.30 quality %, then Han Jie viscosity and surface tension uprise.Consequently, the weld metal in the molten bath will be difficult to drop under the electric arc, and the barrier action that therefore relaxes arc force reduces falling property of refractory and the easy variation of anti-undercut.In addition, splash also and to take place in a large number.Therefore, Mo preferably contains below 0.30 quality %.
(Al:0.006～0.040 quality %)
Because Al is powerful deoxidant element, so if a large amount of the interpolation, then the viscosity in molten bath and surface tension uprise.Therefore, can play the opposite effect making in falling property of refractory and the anti-undercut raising.But in order to reduce the content of O contained in the solid core welding wire as far as possible, so that anti-crackle raising, the method that can reach is, adds Al by trace, promptly carries out deoxidation treatment, oxide particle and nitride particles disperseed, thereby make the crystal grain miniaturization.Add if Al is a trace, also have an advantage to be so, also be difficult to become slag even oxidation takes place.
This effect can obtain when above making Al contain 0.006 quality %.On the other hand, surpass 0.040 quality %,, thereby make falling property of refractory and anti-undercut deterioration to such an extent as to then the viscosity in molten bath and surface tension improve and can not ignore if contain Al.In addition, the increase of splashing, slag is also sharply a large amount of to be taken place.Therefore, Al preferably contains 0.006～0.040 quality %.
And, solid core welding wire of the present invention, welding wire surface is adhered to from K, Li, Na and Ca, select more than at least a kind, add up to every 10kg welding wire to adhere to 0.005～0.300g.In addition, solid core welding wire of the present invention more preferably makes welding wire surface adhere to MoS
2, every 10kg welding wire adheres to 0.01～1.00g.
(at welding wire surface, adhere to K, Li, Na and Ca, every 10kg welding wire adds up to 0.005～0.300g)
Even it is also no problem not contain K, Li, Na, Ca, but using Ar and oxidizing gas (O
2, CO
2) welding in, these elements play a role as arc stabilizer.If these elements are in the near surface of molten drop, then electronic emission is easy, and is effective on the stabilisation of electric arc.If it is unstable that electric arc becomes, arc length variations then, arc force also changes.Falling property of refractory and the easy variation of anti-undercut thus, therefore preferred electric arc is stable as far as possible.The stabilisation of electric arc can or contain among the aforementioned elements that works as arc stabilizer at least a kind by coating and obtain.This effect adds up to by making every 10kg welding wire adhere to these elements that (overall content is scaled 0.5ppm with respect to welding wire) just can significantly obtain more than the 0.005g.
But, if making every 10kg welding wire adhere to aforementioned elements adds up to above 0.300g (overall content is scaled 30ppm with respect to welding wire), then not only make the effect of arc stabilityization saturated, and damage the lubricity on the surface of solid core welding wire on the contrary, thus the possibility that has the stability of giving to reduce.Therefore, from the viewpoint of practicality, be that 0.300g is as higher limit with every 10kg welding wire.
Also have, these elements can be by the solid core welding wire of sampling constant weight (10kg), measure K, Li, Na, Ca amount according to aggregate analysis, and utilize acid etc. that welding wire surface is dissolved, with residual non-surface is that volume is measured K, Li, Na, Ca amount, is defined as surperficial existence quality and is tried to achieve by the difference of these values.
These elements are added with difficulty in melting.As method at the described element of solid core welding wire surface coating, that can adopt has: (a) for example, in wire-drawing process, use potash, lithium carbonate, sodium carbonate, calcium carbonate etc. to be mixed with the wire drawing lubricant of K, Li, Na, Ca, and make it remained on surface at solid core welding wire; (b) for example, in the solution that contains K, Li, Na, Ca, anneal behind the dipping, K, Li, Na, Ca are spread at the crystal boundary or the intragranular on solid core welding wire surface; (c) in addition, for example adopt potassium cyanide, Cymag to implement copper facing; (d) in addition, the oil that for example will contain K, Li, Na, Ca ion is added near surface thus as giving lubricating oil and being coated with.
(make welding wire surface adhere to MoS
2, every 10kg welding wire adheres to 0.01～1.00g)
If have MoS on the surface of solid core welding wire
2, the then hot sticky minimizing of moment on the energising point, impedance reduces, so the stability of giving of solid core welding wire improves.If giving of solid core welding wire is stable unstable, then arc length also becomes unstable, and arc force also changes.Thus, falling property of refractory and the easy variation of anti-undercut, therefore preferred solid core welding wire to give stability stable as far as possible.If coating MoS
2, then can make the raising of falling property of refractory, this effect is at the welding wire surface coating MoS of every 10kg welding wire
2It is effective when above to reach 0.01g (being scaled 1ppm with weight).
On the other hand, the welding wire surface at every 10kg welding wire is coated with MoS
2Surpass 1.00g (being scaled 1ppm), MoS in giving line and energising tip with weight
2Also be to pile up, easily result in blockage, diminish lubricity on the contrary, therefore give stability and reduce.Therefore, be coated with the MoS of (containing) on the surface of solid core welding wire
2The preferred every 10kg welding wire 1.00g of content below.
Also have, as solid core welding wire is coated with MoS
2Method just like inferior: make it to be blended in the drawing compound in the wire-drawing process, and make it remaining, perhaps make it to be blended in the oil of coating on the finish line footpath to finish line footpath.
In addition, solid core welding wire of the present invention also can be covered by copper facing.
(copper facing)
General solid core welding wire, by the be covered surface of former line of copper facing, thereby can realize resistance to rust raising, energising tip abrasion performance keep, make solid core welding wire to produce the time the effect that improves of stringiness and the productive raising that brings thus, and cost degradation etc.
Also have, when being covered former line surperficial without copper facing, the electrical impedance of conducting parts rises, and under the heating effect effect at this moment, the temperature when causing solid core welding wire to arrive the electric arc nidus uprises, and welding wire is in meltable state.Because the solid core welding wire that the only enough fusings of the electric current that the source of welding current is supplied with are fed to so the welding wire of meltable state is low currentization, if the fusion amount is certain, then can reduce heat energy.Therefore, the fusion degree of depth can be further reduced, arc force can also be weakened.Can make anti-undercut raising thus.
Solid core welding wire of the present invention can be made according to conventional methods.For example, use converter or electric furnace etc., melting has the molten steel that mentioned component is formed, the molten steel that obtains is made steel (steel billet etc.) by continuous casting process and ingot casting method etc., after the steel of making are heated, implement hot rolling (extruding rolling), implement cold rolling (the cold drawn silk) of dry type again, the welding of Production Example such as 5.5mm is with former line (being also referred to as the former line of steel), then as required to this welding with former line enforcement annealing and pickling and carry out Wire Drawing, have the directly solid core welding wire of (for example 1.2mm) of finish line thereby can create.
Also have, when carrying out Wire Drawing, as required, can by as inferior the whole bag of tricks carry out surface treatment: (1) can implement wet type copper facing; (2) adding K, Li, Na, Ca in can the copper electrolyte when this copper plating treatment makes these elements add wherein as copper plate; (3) can use and contain K, Li, Na, Ca, MoS
2The wire-drawing lubrication material, make it residual appropriate amount; (4) anneal after can in the solution that contains K, Li, Na, Ca, flooding wire rod, make it diffusion at the crystal boundary and the intragranular of near surface; (5) can be purpose and dope to give lubricated and antirust; (6) make in this oil dissolving or disperse K, Li, Na, Ca, MoS
2And make it remained on surface at this solid core welding wire.Also have, can be not limited to said method to the surface treatment that solid core welding wire of the present invention is implemented, also can carry out according to additive method, in addition, the no matter surface treatment of implementing according to which kind of method, if the solid core welding wire that the result obtains within the scope of the invention, then when welding with after the welding, all can play identical effect.
[embodiment]
Next, compare, be described in detail for solid core welding wire of the present invention with satisfying the embodiment of necessary condition of the present invention and the comparative example of the necessary condition that discontented unabridged version is invented.
Use electric furnace, with the molten steel ingot casting, extrude rolling, cold drawn silk, the welding of making 5.5mm with former line after, should weld and carry out wire drawing, become 2.4mm, carry out intermediate annealing with former line, and carry out copper plating treatment as required and wire drawing in the middle of becoming, carry out final wire drawing again, carry out skin-pass (skinpass) and coating lubricating oil, create the solid core welding wire that one-tenth is grouped into shown in table 1～3 that has of finish line footpath 1.2mm.Also have, K, Li, Na, Ca use as the lubricated material of solid shape of cold drawn silk, and make it residual as required, MoS
2Make it to be dispersed in the lubricating oil also residual as required.In addition, the temperature and time of O when adjusting annealing, atmosphere gas and controlled.The surplus of the chemical composition of welding wire is the described unavoidable impurities in addition in Fe and table 1～3.
For each solid core welding wire of No.1～101 of manufacturing like this, estimate with regard to following each assessment item: (1) falling property of refractory; (2) anti-undercut; (3) hardness of weld metal; (4) anti-crackle; (5) generating capacity that splashes; (6) give stability; (7) slag by the bag rate; (8) pendulum absorbs energy.Also has the evaluation method of the assessment item of (1)～(8) such as following.
[table 1]
| No. | C (quality %) | Si (quality %) | Mn (quality %) | P (quality %) | S (quality %) | Cr (quality %) | Ni (quality %) | Al (quality %) | Ti (quality %) | Nb (quality %) | V (quality %) | Zr (quality %) | La (quality %) | Ce (quality %) | B (quality %) | N (quality %) | O (quality %) | The value of calculating from C+ (P * 5) (quality %) | Mo (quality %) | The amount of grease (quality %) | Surface K, Na, Li, Ca (ppm) | Surface MoS 2(g/ welding wire 10kg) | Copper め つ I |
| 1 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | - | 0.005 | - | - | Have |
| 2 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | 0.15 | 0.005 | - | - | Have |
| 3 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | - | 0.010 | - | - | Have |
| 4 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | 0.15 | 0.010 | - | - | Have |
| 5 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | - | 0.005 | K:5 | - | Have |
| 6 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | 0.15 | 0.005 | K:5 | - | Have |
| 7 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | - | 0.010 | K:5 | - | Have |
| 8 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | 0.15 | 0.010 | K:5 | - | Have |
| 9 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | - | 0.005 | - | 0.10 | Have |
| 10 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | 0.15 | 0.005 | - | 0.10 | Have |
| 11 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | - | 0.010 | - | 0.10 | Have |
| 12 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | 0.15 | 0.010 | - | 0.10 | Have |
| 13 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | - | 0.005 | K:5 | 0.10 | Have |
| 14 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | 0.15 | 0.005 | K:5 | 0.10 | Have |
| 15 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | - | 0.010 | K:5 | 0.10 | Have |
| 16 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | 0.15 | 0.010 | K:5 | 0.10 | Have |
| 17 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | - | 0.005 | - | - | Do not have |
| 18 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | 0.15 | 0.005 | - | - | Do not have |
| 19 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | - | 0.010 | - | - | Do not have |
| 20 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | 0.15 | 0.010 | - | - | Do not have |
| 21 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | - | 0.005 | K:5 | - | Do not have |
| 22 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | 0.15 | 0.005 | K:5 | - | Do not have |
| 23 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | - | 0.010 | K:5 | - | Do not have |
| 24 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | 0.15 | 0.010 | K:5 | - | Do not have |
| 25 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | - | 0.005 | - | 0.10 | Do not have |
| 26 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | 0.15 | 0.005 | - | 0.10 | Do not have |
| 27 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | - | 0.010 | - | 0.10 | Do not have |
| 28 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | 0.15 | 0.010 | - | 0.10 | Do not have |
| 29 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | - | 0.005 | K:5 | 0.10 | Do not have |
| 30 | 0.035 | 0.74 | 1.40 | 0.008 | 0.120 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0047 | 0.0065 | 0.075 | 0.15 | 0.005 | K:5 | 0.10 | Do not have |
| 31 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | - | 0.010 | K:5 | 0.10 | Do not have |
| 32 | 0.050 | 0.50 | 1.50 | 0.015 | 0.053 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0020 | 0.125 | 0.15 | 0.010 | K:5 | 0.10 | Do not have |
| 33 | 0.045 | 0.75 | 1.40 | 0.008 | 0.080 | - | - | 0.001 | - | - | - | - | - | - | - | 0.0030 | 0.0065 | 0.085 | - | 0.005 | - | - | Have |
| 34 | 0.030 | 0.40 | 1.30 | 0.010 | 0.100 | - | - | 0.001 | - | - | - | - | - | - | - | 0.0030 | 0.0065 | 0.080 | - | 0.005 | - | - | Have |
[table 2]
| No. | C (quality %) | Si (quality %) | Mn (quality %) | P (quality %) | S (quality %) | Cr (quality %) | Ni (quality %) | Al (quality %) | Ti (quality %) | Nb (quality %) | V (quality %) | Zr (quality %) | La (quality %) | Ce (quality %) | B (quality %) | N (quality %) | O (quality %) | The value of calculating from C+ (P * 5) (quality %) | Mo (quality %) | The amount of grease (quality %) | Surface K, Na, Li, Ca (ppm) | Surface MoS 2(g/ welding wire 10kg) | Copper facing |
| 35 | 0.060 | 0.90 | 1.62 | 0.011 | 0.195 | - | - | 0.003 | - | - | - | - | - | - | - | 0.0030 | 0.0040 | 0.115 | - | 0.010 | K:5 | - | Have |
| 36 | 0.060 | 0.90 | 1.62 | 0.011 | 0.195 | - | - | 0.003 | - | - | - | - | - | - | - | 0.0030 | 0.0040 | 0.115 | - | 0.010 | K:5 | 0.10 | Do not have |
| 37 | 0.020 | 0.28 | 1.15 | 0.005 | 0.080 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0015 | 0.0015 | 0.045 | - | 0.012 | Na:5 | - | Have |
| 38 | 0.065 | 1.00 | 1.30 | 0.014 | 0.056 | 0.20 | - | 0.006 | - | - | - | - | - | - | - | 0.0040 | 0.0033 | 0.135 | 0.05 | 0.001 | - | - | Have |
| 39 | 0.050 | 0.74 | 1.65 | 0.010 | 0.073 | - | 0.20 | 0.040 | - | - | - | - | - | - | - | 0.0042 | 0.0010 | 0.100 | 0.10 | 0.001 | Ca:2， Na:1 | 0.01 | Have |
| 40 | 0.008 | 0.74 | 1.55 | 0.016 | 0.090 | 0.02 | - | 0.002 | 0.12 | - | - | - | - | - | - | 0.0050 | 0.0043 | 0.088 | - | 0.003 | Li:5 | 0.90 | Have |
| 41 | 0.040 | 0.50 | 1.35 | 0.009 | 0.060 | - | - | 0.001 | - | 0.20 | - | - | - | - | - | 0.0035 | 0.0045 | 0.085 | 0.29 | 0.007 | - | 0.50 | Do not have |
| 42 | 0.070 | 0.38 | 1.60 | 0.010 | 0.065 | - | - | 0.003 | 0.005 | - | - | - | - | - | 0.0050 | 0.0020 | 0.0020 | 0.120 | - | 0.007 | K:10 Na:10 Li:10 | - | Have |
| 43 | 0.035 | 0.75 | 1.25 | 0.008 | 0.060 | - | - | 0.003 | - | - | 0.20 | - | - | - | 0.0005 | 0.0034 | 0.0035 | 0.075 | 0.20 | 0.007 | K:0.5 | - | Have |
| 44 | 0.040 | 0.95 | 1.40 | 0.012 | 0.165 | - | 0.02 | 0.003 | - | - | - | 0.10 | - | - | - | 0.0025 | 0.0044 | 0.100 | 0.01 | 0.007 | Na:0.5 | 0.05 | Do not have |
| 45 | 0.068 | 0.80 | 1.25 | 0.009 | 0.050 | - | - | 0.003 | - | - | - | - | 0.15 | 0.15 | - | 0.0020 | 0.0040 | 0.113 | - | 0.007 | - | - | Have |
| 46 | 0.070 | 1.20 | 1.35 | 0.013 | 0.050 | 0.05 | - | 0.004 | - | - | - | - | - | - | - | 0.0040 | 0.0040 | 0.135 | 0.05 | 0.007 | - | - | Have |
| 47 | 0.050 | 0.99 | 1.65 | 0.012 | 0.073 | - | 0.05 | 0.008 | - | - | - | - | - | - | - | 0.0010 | 0.0044 | 0.110 | 0.10 | 0.007 | Ca:2， Na:1 | 0.01 | Have |
| 48 | 0.025 | 0.80 | 1.55 | 0.017 | 0.120 | 0.02 | - | 0.001 | 0.015 | - | - | - | - | - | - | 0.0030 | 0.0070 | 0.110 | - | 0.007 | Li:5 | 0.90 | Have |
| 49 | 0.040 | 0.70 | 1.35 | 0.006 | 0.060 | - | - | 0.004 | - | 0.008 | - | - | - | - | - | 0.0025 | 0.0020 | 0.070 | 0.29 | 0.007 | - | 0.50 | Do not have |
| 50 | 0.075 | 0.48 | 1.60 | 0.005 | 0.065 | - | - | 0.020 | 0.005 | - | - | - | - | - | 0.0028 | 0.0035 | 0.0015 | 0.100 | - | 0.007 | K:10 Na:10 Li:10 | - | Have |
| 51 | 0.035 | 0.75 | 1.30 | 0.004 | 0.080 | - | - | 0.007 | - | - | 0.008 | - | - | - | 0.0005 | 0.0045 | 0.0035 | 0.055 | 0.20 | 0.007 | K:0.5 | - | Have |
| 52 | 0.040 | 1.10 | 1.40 | 0.009 | 0.100 | - | 0.02 | 0.007 | - | - | - | 0.008 | - | - | - | 0.0040 | 0.0030 | 0.085 | 0.01 | 0.007 | Na:0.5 | 0.05 | Do not have |
| 53 | 0.050 | 0.80 | 1.25 | 0.011 | 0.050 | - | - | 0.002 | - | - | - | - | 0.007 | 0.007 | - | 0.0020 | 0.0025 | 0.105 | - | 0.007 | - | - | Have |
| 54 | 0.020 | 0.80 | 1.40 | 0.010 | 0.070 | 0.04 | 0.04 | 0.007 | 0.050 | 0.008 | 0.005 | 0.008 | 0.005 | 0.005 | 0.0025 | 0.0035 | 0.0035 | 0.070 | - | 0.007 | - | - | Have |
| 55 | 0.050 | 0.75 | 1.63 | 0.016 | 0.085 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0044 | 0.0040 | 0.130 | - | 0.007 | K:24 | - | Have |
| 56 | 0.050 | 0.75 | 1.63 | 0.016 | 0.085 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0044 | 0.0040 | 0.130 | - | 0.007 | K:2 | 0.05 | Do not have |
| 57 | 0.050 | 0.40 | 1.17 | 0.010 | 0.057 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0040 | 0.0040 | 0.100 | - | 0.007 | - | - | Have |
| 58 | 0.050 | 0.70 | 1.17 | 0.010 | 0.057 | - | - | 0.007 | - | - | - | - | - | - | - | 0.0040 | 0.0040 | 0.100 | - | 0.007 | - | - | Have |
| 59 | 0.050 | 0.70 | 1.17 | 0.010 | 0.057 | - | - | 0.007 | 0.050 | - | - | - | - | - | - | 0.0040 | 0.0040 | 0.100 | - | 0.007 | - | - | Have |
| 60 | 0.050 | 0.40 | 1.63 | 0.012 | 0.070 | - | - | 0.010 | - | - | - | - | - | - | - | 0.0040 | 0.0015 | 0.110 | - | 0.007 | - | - | Have |
| 61 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0025 | 0.0030 | 0.085 | - | 0.007 | K:32 | 0.10 | Have |
| 62 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0025 | 0.0030 | 0.085 | - | 0.007 | Ca:5，Na:2 0，K:7 | 0.10 | Have |
| 63 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0025 | 0.0030 | 0.085 | - | 0.007 | K:5 | 1.10 | Do not have |
| 64 | 0.050 | 0.65 | 1.63 | 0.015 | 0.065 | 0.02 | 0.02 | 0.003 | 0.009 | 0.008 | 0.005 | 0.008 | 0.001 | 0.001 | 0.0006 | 0.0025 | 0.0030 | 0.125 | 0.15 | 0.007 | - | 1.10 | Have |
| 65 | 0.003 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.053 | - | 0.008 | K:5 | 0.10 | Have |
| 66 | 0.085 | 0.74 | 1.40 | 0.010 | 0.050 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.135 | - | 0.008 | K:5 | 0.10 | Have |
| 67 | 0.035 | 0.28 | 1.15 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.003 | K:5 | 0.10 | Have |
| 68 | 0.035 | 1.25 | 1.55 | 0.010 | 0.060 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.003 | K:5 | 0.10 | Have |
[table 3]
| No. | C (quality %) | Si (quality %) | Mn (quality %) | P (quality %) | S (quality %) | Cr (quality %) | Ni (quality %) | Al (quality %) | Ti (quality %) | Nb (quality %) | V (quality %) | Zr (quality %) | La (quality %) | Ce (quality %) | B (quality %) | N (quality %) | O (quality %) | The value of calculating from C+ (P * 5) (quality %) | Mo (quality %) | The amount of grease (quality %) | Surface K, Na, Li, Ca (ppm) | Surface MoS 2(g/ welding wire 10kg) | Copper facing |
| 69 | 0.035 | 0.62 | 1.13 | 0.010 | 0.060 | - | - | 0.010 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.004 | K:5 | 0.10 | Have |
| 70 | 0.030 | 0.75 | 0.95 | 0.013 | 0.095 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0020 | 0.0030 | 0.095 | - | 0.004 | - | - | Have |
| 71 | 0.040 | 0.90 | 1.67 | 0.008 | 0.060 | - | - | 0.015 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.080 | - | 0.005 | K:5 | 0.10 | Have |
| 72 | 0.040 | 0.95 | 1.80 | 0.014 | 0.100 | - | - | 0.003 | - | - | - | - | - | - | - | 0.0070 | 0.0035 | 0.110 | - | 0.005 | - | - | Have |
| 73 | 0.020 | 0.74 | 1.40 | 0.018 | 0.060 | - | - | 0.011 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.110 | - | 0.01 | K:5 | 0.10 | Have |
| 74 | 0.020 | 0.85 | 1.35 | 0.040 | 0.050 | - | - | 0.003 | - | - | - | - | - | - | - | 0.0040 | 0.0035 | 0.220 | - | 0.01 | - | - | Have |
| 75 | 0.035 | 0.74 | 1.40 | 0.010 | 0.047 | - | - | 0.008 | - | - | - | - | - | - | - | 0.0045 | 0.0025 | 0.085 | - | 0.009 | K:5 | 0.10 | Have |
| 76 | 0.035 | 0.74 | 1.40 | 0.010 | 0.210 | - | - | 0.007 | - | - | - | - | - | - | - | 0.0025 | 0.0040 | 0.085 | - | 0.009 | K:5 | 0.10 | Have |
| 77 | 0.100 | 1.40 | 1.50 | 0.005 | 0.250 | - | - | 0.004 | - | - | - | - | - | - | - | 0.0040 | 0.0030 | 0.125 | - | 0.008 | - | - | Have |
| 78 | 0.050 | 0.74 | 1.40 | 0.017 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0045 | 0.0045 | 0.135 | - | 0.013 | K:5 | 0.10 | Have |
| 79 | 0.040 | 0.74 | 1.40 | 0.016 | 0.100 | 0.02 | 0.02 | 0.005 | 0.005 | - | - | - | - | - | - | 0.0050 | 0.0049 | 0.120 | - | 0.020 | - | - | Do not have |
| 80 | 0.060 | 0.40 | 1.25 | 0.016 | 0.050 | - | - | 0.007 | - | - | - | - | 0.007 | - | - | 0.0045 | 0.0050 | 0.140 | 0.25 | 0.005 | Li:0.9 | 0.50 | Have |
| 81 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | 0.21 | - | 0.003 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 82 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | 0.21 | 0.008 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 83 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.050 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 84 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.008 | 0.16 | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 85 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.005 | - | 0.21 | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 86 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.005 | - | - | 0.21 | - | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 87 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.005 | - | - | - | 0.11 | - | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 88 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.009 | - | - | - | - | 0.21 | - | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 89 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | 0.21 | - | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 90 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | 0.0055 | 0.0025 | 0.0045 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 91 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0060 | 0.0025 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 92 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0045 | 0.0120 | 0.085 | - | 0.005 | K:5 | 0.10 | Have |
| 93 | 0.035 | 0.74 | 1.40 | 0.012 | 0.110 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0030 | 0.0075 | 0.095 | - | 0.005 | - | - | Do not have |
| 94 | 0.035 | 0.74 | 1.40 | 0.010 | 0.060 | - | - | 0.006 | - | - | - | - | - | - | - | 0.0025 | 0.0045 | 0.085 | 0.35 | 0.008 | K:5 | 0.10 | Have |
| 95 | 0.050 | 0.23 | 1.25 | 0.022 | 0.018 | - | - | 0.006 | 0.08 | - | - | - | - | - | - | 0.0050 | 0.0020 | 0.160 | - | 0.015 | - | - | Have |
| 96 | 0.090 | 0.75 | 1.85 | 0.010 | 0.002 | 0.20 | - | 0.012 | 0.15 | - | - | - | - | - | 0.0060 | 0.0020 | 0.0020 | 0.140 | 0.32 | 0.025 | - | - | Have |
| 97 | 0.060 | 0.90 | 1.45 | 0.010 | 0.075 | - | - | 0.002 | - | - | - | - | - | - | - | 0.0060 | 0.0080 | 0.110 | - | 0.014 | - | - | Have |
| 98 | 0.070 | 0.65 | 1.50 | 0.006 | 0.057 | - | - | 0.005 | - | - | - | - | - | - | - | 0.0040 | 0.0080 | 0.100 | - | 0.018 | - | - | Have |
| 99 | 0.030 | 0.45 | 1.35 | 0.007 | 0.120 | - | - | 0.002 | - | 0.005 | - | - | - | - | - | 0.0030 | 0.0030 | 0.065 | 0.05 | 0.017 | - | - | Do not have |
| 100 | 0.050 | 1.00 | 1.35 | 0.005 | 0.035 | 0.01 | - | 0.003 | - | - | - | - | - | - | - | 0.0030 | 0.0030 | 0.075 | - | 0.001 | K:5 | 0.10 | Do not have |
| 101 | 0.079 | 0.70 | 1.25 | 0.012 | 0.100 | - | - | 0.008 | - | - | - | - | - | - | - | 0.0030 | 0.0030 | 0.139 | - | 0.002 | - | 0.10 | Have |
(1) falling property of refractory
Fig. 4 is the figure of the definition of the explanation of lap fillet welding test and being used to the degree of depth that undercut is described.
As shown in Figure 4, make the carbon steel sheet of thickness of slab 2.0mm, tensile strength 520MPa become the lap joint of root gap (root gap) 0.5mm, amount of lap 4mm, carry out overlap welding with the speed of welding of flat-hand position, 80cm/min.At this moment protective gas consist of Ar80%+CO
220%, polarity is the mother metal negative electrode, and the outstanding length of solid core welding wire is 15mm.The every 5A of electric current is changed once, and the speed of giving that solid core welding wire under the current value of maximum of burn-off does not take place is used to estimate falling property of refractory as the critical speed (m/min) of giving.At this, why without current value estimate falling property of refractory be because, be grouped into according to the one-tenth of solid core welding wire, current value and the relation of giving speed can change.Also have, the adjustment of magnitude of voltage is to change the current value that makes it to change, be judged as make electric arc the most stable value (best judgment value) as this magnitude of voltage.If so, then deposited amount one regularly, critical to give the big more fusion of speed shallow more, so falling property of refractory excellence.
Being evaluated as of falling property of refractory, the critical speed of giving are be evaluated as good (zero) that 5.60m/min is above, be lower than 6.50m/min, and 6.50m/min is above in addition is evaluated as good (◎).With respect to this, the critical speed of giving is lower than being evaluated as of 5.60m/min bad (*).Also have, good (zero's) and good (◎) is qualified, bad (*) be defective.
(2) anti-undercut
Accept the result of the test of (1), current value is set at (the critical current value of giving speed-30A), voltage is set at (best judgment value+2V), and the section photomacrograph (10 times of multiplying powers) of the welding bead when taking welding, the degree of depth of measuring the undercut of weld toe from this section photomacrograph (also has, be expressed as " degree of depth of undercut (mm) " in table 4～6.)。As shown in Figure 4, the both sides of instrumentation upper plate side and lower plate side, with maximum as evaluation of estimate.
Being evaluated as of anti-undercut, described maximum surpass 0.30mm, being evaluated as below 0.50mm good (zero), and this external 0.30mm is following is evaluated as good (◎).With respect to this, described maximum surpasses be evaluated as bad (*) of 0.50mm.Also have, good (zero's) and good (◎) is that qualified, bad (*) is defective.
(3) hardness of weld metal
Accept the result of the test of (1), current value is set at (the critical current value of giving speed-10A), the Vickers hardness (load 1kgf (9.8N)) of 3 points of section central portion of the weld metal of the lap joint of mensuration welding is with the hardness (HV) of its mean value as weld metal.
The evaluation of the hardness of weld metal, from reaching hardness this general opinion equal above with mother metal, Vickers hardness 160HV is above is evaluated as well (zero), and Vickers hardness is lower than be evaluated as (*) of 160HV.Also have, good (zero) is that qualified, bad (*) is defective.
(4) anti-crackle
Accept the result of the test of (1),, all carry out X ray transmission test with the critical current value of giving speed and the critical weld length of giving speed welding 100mm 10 times.Also have, in table 4～6, be expressed as in " crackle ".
Crackle according to the result of X ray transmission test, does not take place and sound fully is evaluated as " nothings " (good (zero)) in being evaluated as of anti-crackle, and what the crackle generation was arranged is evaluated as " having " (bad (*)).Also have, good (zero) is that qualified, bad (*) is defective.
Also have, according to whole results that investigate of crackle have taken place, the generation form of crackle is the longitudinal crack of the cardinal principle central portion of weld width as shown in Figure 5.In addition, the result who observes this section as can be known, crackle is a solidification cracking.Also have, Fig. 5 is used for illustrating the figure of the evaluation of anti-crackle as the crackle of evaluation object.
(5) generating capacity that splashes
In built-up welding (bead-on-plate) with electric current 200A, make arc length according near the enlarging projection the electric arc be that the voltage that the mode of 2mm is set welds, and captures splashing of taking place with catch, measures its weight.
Being evaluated as of the generating capacity that splashes, the generating capacity that splashes surpass 1.30g/min, are evaluated as good (zero), being evaluated as below 1.30g/min good (◎) below 1.50g/min.With respect to this, the generating capacity that splashes surpass 1.50g/min be evaluated as bad (*).Also have, good (zero's) and good (◎) is that qualified, bad (*) is defective.
(6) give stability
Giving speed, electric arc length with the solid core welding wire of 6.00m/min in built-up welding is that the voltage of 2mm carries out welding in 1 hour, sensory evaluation stability.
Give being evaluated as of stability, the evaluation that the speed of giving does not have change fully good (◎) has some changes although confirm the speed of giving, and no problemly in practicality is evaluated as well (zero).With respect to this, the change of giving speed is big, and the electric arc instability is judged as be evaluated as (*) of being unable to undergo to use.Also have, good (◎'s) and good (zero) is that qualified, bad (*) is defective.
(7) encapsulation ratio of slag
In the electrodeposition coating of after welding, being implemented, in order to estimate the danger that causes application to be peeled off owing to peeling off of slag, and be determined at the area occupation ratio of the slag that produces on the welding bead.
Being evaluated as of the encapsulation ratio of slag is 4.0% when following with respect to the ratio of the total area of the slag of the surface area of welding bead, is evaluated as good (◎), surpasses 4.0%, is evaluated as well (zero) when following 5.0%.With respect to this, this ratio surpasses at 5.0% o'clock and is evaluated as bad (*).Also have, good (◎'s) and good (zero) is that qualified, bad (*) is defective.
(8) pendulum absorbs energy
For the ease of estimating the impact property of weld part, that is, the whether embrittlement of the weld metal of weld part is measured pendulum according to JIS Z3312 " mild steel and high tension steel with active gases protection metal utmost point welding solid core welding wire " and is absorbed energy.Test temperature is 0 ℃, carries out 3 tests, and its mean value is supplied to estimate.
Pendulum absorb can be evaluated as, be evaluated as good (◎) more than the 70J, 27J is above, be lower than 70J is evaluated as well (zero).With respect to this, pendulum absorb can be lower than 27J be judged as the embrittlement metal, be evaluated as bad (*).Also have, good (◎'s) and good (zero) is that qualified, bad (*) is defective.
The evaluation result of assessment item (1)～(8) is presented in table 4～6.
[table 4]
| No. | Critical current (A) | The undercut degree of depth (mm) | Hardness (HV) | Crackle | Splashing amount (g/min) | Give stability | Slag encapsulation ratio (%) | Absorb energy * (J) | The critical amount of giving (m/min) | Remarks |
| 1 | 240 | 0.20◎ | 174○ | Do not have | 1.38○ | ○ | 2.5◎ | 65○ | 7.49◎ | Embodiment |
| 2 | 240 | 0.25◎ | 181○ | Do not have | 1.41○ | ○ | 2.7◎ | 68○ | 7.49◎ | ″ |
| 3 | 220 | 0.25◎ | 172○ | Do not have | 1.08◎ | ○ | 3.0◎ | 100◎ | 6.58◎ | ″ |
| 4 | 220 | 0.30◎ | 179○ | Do not have | 1.16◎ | ○ | 3.2◎ | 105◎ | 6.58◎ | ″ |
| 5 | 245 | 0.15◎ | 174○ | Do not have | 1.37○ | ○ | 2.5◎ | 63○ | 7.71◎ | ″ |
| 6 | 245 | 0.20◎ | 181○ | Do not have | 1.40○ | ○ | 2.7◎ | 65○ | 7.71◎ | ″ |
| 7 | 225 | 0.20◎ | 172○ | Do not have | 1.03◎ | ○ | 3.0◎ | 101◎ | 6.81◎ | ″ |
| 8 | 225 | 0.25◎ | 172○ | Do not have | 1.04◎ | ○ | 3.2◎ | 106◎ | 6.81◎ | ″ |
| 9 | 250 | 0.10◎ | 174○ | Do not have | 1.37○ | ◎ | 2.5◎ | 66○ | 7.94◎ | ″ |
| 10 | 250 | 0.15◎ | 181○ | Do not have | 1.40○ | ◎ | 2.7◎ | 67○ | 7.94◎ | ″ |
| 11 | 225 | 0.15◎ | 172○ | Do not have | 0.96◎ | ◎ | 3.0◎ | 102◎ | 6.81◎ | ″ |
| 12 | 225 | 0.20◎ | 179○ | Do not have | 1.09◎ | ◎ | 3.2◎ | 107◎ | 6.81◎ | ″ |
| 13 | 250 | 0.05◎ | 174○ | Do not have | 1.35○ | ◎ | 2.5◎ | 66○ | 7.94◎ | ″ |
| 14 | 250 | 0.10◎ | 181○ | Do not have | 1.38○ | ◎ | 2.7◎ | 64○ | 7.94◎ | ″ |
| 15 | 220 | 0.10◎ | 172○ | Do not have | 0.91◎ | ◎ | 3.0◎ | 103◎ | 6.58◎ | ″ |
| 16 | 220 | 0.15◎ | 179○ | Do not have | 0.99◎ | ◎ | 3.2◎ | 108◎ | 6.58◎ | ″ |
| 17 | 250 | 0.15◎ | 174○ | Do not have | 1.36○ | ○ | 2.7◎ | 63○ | 7.94◎ | ″ |
| 18 | 250 | 0.20◎ | 181○ | Do not have | 1.39○ | ○ | 2.9◎ | 64○ | 7.94◎ | ″ |
| 19 | 225 | 0.20◎ | 172○ | Do not have | 1.01◎ | ○ | 3.2◎ | 98◎ | 6.81◎ | ″ |
| 20 | 225 | 0.25◎ | 179○ | Do not have | 1.06◎ | ○ | 3.4◎ | 103◎ | 6.81◎ | ″ |
| 21 | 255 | 0.10◎ | 174○ | Do not have | 1.34○ | ○ | 2.7◎ | 64○ | 8.17◎ | ″ |
| 22 | 255 | 0.15◎ | 181○ | Do not have | 1.37○ | ○ | 2.9◎ | 65○ | 8.17◎ | ″ |
| 23 | 230 | 0.15◎ | 172○ | Do not have | 0.85◎ | ○ | 3.2◎ | 99◎ | 7.03◎ | ″ |
| 24 | 230 | 0.20◎ | 172○ | Do not have | 0.94◎ | ○ | 3.4◎ | 104◎ | 7.03◎ | ″ |
| 25 | 255 | 0.05◎ | 174○ | Do not have | 1.34○ | ◎ | 2.7◎ | 66○ | 8.17◎ | ″ |
| 26 | 255 | 0.10◎ | 181○ | Do not have | 1.37○ | ◎ | 2.9◎ | 68○ | 8.17◎ | ″ |
| 27 | 230 | 0.10◎ | 172○ | Do not have | 0.85◎ | ◎ | 3.2◎ | 100◎ | 7.03◎ | ″ |
| 28 | 230 | 0.15◎ | 179○ | Do not have | 0.94◎ | ◎ | 3.4◎ | 105◎ | 7.03◎ | ″ |
| 29 | 260 | 0◎ | 174○ | Do not have | 1.30○ | ◎ | 2.7◎ | 65○ | 8.39◎ | ″ |
| 30 | 260 | 0.05◎ | 181○ | Do not have | 1.33○ | ◎ | 2.9◎ | 67○ | 8.39◎ | ″ |
| 31 | 240 | 0.05◎ | 172○ | Do not have | 0.80◎ | ◎ | 3.2◎ | 101◎ | 7.49◎ | ″ |
| 32 | 240 | 0.10◎ | 179○ | Do not have | 0.89◎ | ◎ | 3.4◎ | 106◎ | 7.49◎ | ″ |
| 33 | 245 | 0.20◎ | 176○ | Do not have | 1.20◎ | ○ | 2.7◎ | 69○ | 7.71◎ | ″ |
| 34 | 245 | 0.15◎ | 165○ | Do not have | 1.35○ | ○ | 2.6◎ | 47○ | 7.71◎ | ″ |
[table 5]
| No. | Critical current (A) | The undercut degree of depth (mm) | Hardness (HV) | Crackle | Splashing amount (g/min) | Give stability | Slag encapsulation ratio (%) | Absorb energy * (J) | The critical amount of giving (m/min) | Remarks |
| 35 | 205 | 0.35○ | 182○ | Do not have | 1.40○ | ○ | 4.1○ | 40○ | 5.90○ | Embodiment |
| 36 | 215 | 0.30◎ | 182○ | Do not have | 1.35○ | ◎ | 4.3○ | 40○ | 6.35○ | ″ |
| 37 | 205 | 0.40○ | 161○ | Do not have | 0.99◎ | ○ | 2.7◎ | 76◎ | 5.90○ | ″ |
| 38 | 200 | 0.50○ | 175○ | Do not have | 1.45○ | ○ | 4.5○ | 80◎ | 5.67○ | ″ |
| 39 | 215 | 0.50○ | 184○ | Do not have | 1.42○ | ◎ | 4.7○ | 60○ | 6.35○ | ″ |
| 40 | 230 | 0.35○ | 196○ | Do not have | 1.44○ | ◎ | 4.7○ | 80◎ | 7.03◎ | ″ |
| 41 | 215 | 0.45○ | 208○ | Do not have | 1.43○ | ◎ | 4.2○ | 49○ | 6.35○ | ″ |
| 42 | 200 | 0.50○ | 179○ | Do not have | 1.18◎ | ○ | 4.1○ | 102◎ | 5.67○ | ″ |
| 43 | 215 | 0.50○ | 190○ | Do not have | 1.46○ | ○ | 4.1○ | 76◎ | 6.35○ | ″ |
| 44 | 210 | 0.50○ | 175○ | Do not have | 1.45○ | ◎ | 4.1○ | 60○ | 6.12○ | ″ |
| 45 | 220 | 0.50○ | 173○ | Do not have | 1.42○ | ○ | 4.6○ | 99◎ | 6.58◎ | ″ |
| 46 | 200 | 0.50○ | 175○ | Do not have | 1.45○ | ○ | 3.4◎ | 72○ | 5.67○ | ″ |
| 47 | 215 | 0.40○ | 184○ | Do not have | 1.16◎ | ◎ | 4.4○ | 102◎ | 6.35○ | ″ |
| 48 | 240 | 0.15◎ | 196○ | Do not have | 1.35○ | ◎ | 2.5◎ | 66○ | 7.49◎ | ″ |
| 49 | 225 | 0.10◎ | 208○ | Do not have | 0.99◎ | ◎ | 3.2◎ | 80◎ | 6.81◎ | ″ |
| 50 | 200 | 0.50○ | 179○ | Do not have | 1.48○ | ○ | 4.2○ | 95◎ | 5.67○ | ″ |
| 51 | 225 | 0.20◎ | 190○ | Do not have | 1.20◎ | ○ | 2.9◎ | 76◎ | 6.81◎ | ″ |
| 52 | 240 | 0◎ | 175○ | Do not have | 1.32○ | ◎ | 2.7◎ | 68○ | 7.49◎ | ″ |
| 53 | 220 | 0.25◎ | 173○ | Do not have | 1.26◎ | ○ | 3.6◎ | 90◎ | 6.58◎ | ″ |
| 54 | 220 | 0.20◎ | 175○ | Do not have | 1.29◎ | ○ | 3.8◎ | 103◎ | 6.58◎ | ″ |
| 55 | 210 | 0.35○ | 180○ | Do not have | 0.91◎ | ○ | 4.4○ | 100◎ | 6.12○ | ″ |
| 56 | 215 | 0.30○ | 180○ | Do not have | 0.85◎ | ◎ | 4.5○ | 99◎ | 6.35○ | ″ |
| 57 | 205 | 0.40○ | 170○ | Do not have | 1.43○ | ○ | 2.9◎ | 75◎ | 5.90○ | ″ |
| 58 | 200 | 0.35○ | 174○ | Do not have | 1.44○ | ○ | 3.1◎ | 80◎ | 5.67○ | ″ |
| 59 | 200 | 0.35○ | 176○ | Do not have | 1.50○ | ○ | 3.3◎ | 80◎ | 5.67○ | ″ |
| 60 | 200 | 0.45○ | 179○ | Do not have | 1.42○ | ○ | 4.1○ | 92◎ | 5.67○ | ″ |
| 61 | 225 | 0.10◎ | 174○ | Do not have | 113◎ | ○ | 2.7◎ | 78◎ | 6.81◎ | ″ |
| 62 | 225 | 0.10◎ | 174○ | Do not have | 1.40◎ | ○ | 2.7◎ | 80◎ | 6.81◎ | ″ |
| 63 | 240 | 0◎ | 174○ | Do not have | 1.03◎ | ○ | 2.7◎ | 78◎ | 7.49◎ | ″ |
| 64 | 200 | 0.35○ | 182○ | Do not have | 1.28◎ | ○ | 4.5○ | 96◎ | 5.67○ | ″ |
| 65 | 225 | 0.10◎ | 150× | Do not have | 0.84◎ | ◎ | 2.5◎ | 90◎ | 6.81◎ | Comparative example |
| 66 | 190 | 0.55× | 200○ | Have | 1.64× | ◎ | 2.6◎ | 94◎ | 5.22× | ″ |
| 67 | 190 | 0.55× | 153× | Do not have | 0.85◎ | ◎ | 2.3◎ | 102◎ | 5.22× | ″ |
| 68 | 190 | 0.55× | 187○ | Do not have | 1.10◎ | ◎ | 2.9◎ | 22× | 5.22× | ″ |
[table 6]
| No. | Critical current (A) | The undercut degree of depth (mm) | Hardness (HV) | Crackle | Splashing amount (g/min) | Give stability | Slag encapsulation ratio (%) | Absorb energy * (J) | The critical amount of giving (m/min) | Remarks |
| 69 | 190 | 0.55× | 156× | Do not have | 0.94◎ | ◎ | 2.3◎ | 23× | 5.22× | Comparative example |
| 70 | 185 | 0.60× | 151× | Do not have | 1.40○ | ○ | 2.2◎ | 20× | 4.99× | ″ |
| 71 | 190 | 0.55× | 182○ | Do not have | 1.20◎ | ◎ | 5.2× | 106◎ | 5.22× | ″ |
| 72 | 185 | 0.60× | 183○ | Have | 1.41○ | ○ | 5.9× | 20× | 4.99× | ″ |
| 73 | 225 | 0.40○ | 175○ | Have | 0.90◎ | ◎ | 2.5◎ | 78◎ | 6.81◎ | ″ |
| 74 | 225 | 0.42○ | 173○ | Have | 1.65× | ○ | 3.1◎ | 22× | 6.81◎ | ″ |
| 75 | 190 | 0.55× | 175○ | Do not have | 0.84◎ | ◎ | 3.1◎ | 103◎ | 5.22× | ″ |
| 76 | 235 | 0.60× | 176○ | Have | 1.60× | ◎ | 1.9◎ | 19× | 7.26◎ | ″ |
| 77 | 180 | 0.55× | 200○ | Have | 1.80× | ○ | 3.3◎ | 8× | 4.76× | ″ |
| 78 | 195 | 0.55× | 180○ | Have | 1.11◎ | ◎ | 2.7◎ | 76◎ | 5.44× | ″ |
| 79 | 190 | 0.60× | 179○ | Have | 1.44○ | ◎ | 3.5◎ | 45○ | 5.22× | ″ |
| 80 | 220 | 0.35○ | 206○ | Have | 1.19◎ | ◎ | 3.5◎ | 80◎ | 6.58◎ | ″ |
| 81 | 190 | 0.55× | 179○ | Do not have | 1.54× | ◎ | 5.1× | 73◎ | 5.22× | ″ |
| 82 | 190 | 0.55× | 179○ | Do not have | 1.53× | ◎ | 3.4◎ | 106◎ | 5.22× | ″ |
| 83 | 190 | 0.55× | 176○ | Do not have | 1.60× | ◎ | 5.1× | 54○ | 5.22× | ″ |
| 84 | 190 | 0.55× | 178○ | Do not have | 1.52× | ◎ | 5.2× | 100◎ | 5.22× | ″ |
| 85 | 190 | 0.55× | 182○ | Do not have | 1.58× | ◎ | 5.2× | 56○ | 5.22× | ″ |
| 86 | 190 | 0.55× | 182○ | Do not have | 1.60× | ◎ | 5.1× | 56○ | 5.22× | ″ |
| 87 | 190 | 0.55× | 176○ | Do not have | 1.58× | ◎ | 5.2× | 90◎ | 5.22× | ″ |
| 88 | 190 | 0.55× | 175○ | Do not have | 1.53× | ◎ | 5.2× | 76◎ | 5.22× | ″ |
| 89 | 190 | 0.55× | 175○ | Do not have | 1.53× | ◎ | 5.2× | 74◎ | 5.22× | ″ |
| 90 | 225 | 0.25◎ | 180○ | Have | 1.01◎ | ◎ | 2.8◎ | 105◎ | 6.81◎ | ″ |
| 91 | 225 | 0.60× | 185○ | Have | 1.28◎ | ◎ | 3.3◎ | 25× | 6.81◎ | ″ |
| 92 | 230 | 0.60× | 168○ | Have | 1.15◎ | ◎ | 5.5× | 76◎ | 7.03◎ | ″ |
| 93 | 230 | 0.60× | 165○ | Have | 1.33○ | ○ | 5.3× | 55○ | 7.13◎ | ″ |
| 94 | 190 | 0.55× | 220○ | Do not have | 1.55× | ◎ | 3.4◎ | 80◎ | 5.22× | ″ |
| 95 | 180 | 0.60× | 156× | Have | 1.20◎ | ○ | 4.5○ | 50○ | 4.76× | ″ |
| 96 | 75 | 0.70× | 237○ | Have | 1.90× | ○ | 10.5× | 156◎ | 4.54× | ″ |
| 97 | 190 | 0.60× | 178○ | Have | 1.40○ | ○ | 5.7× | 21× | 5.22× | ″ |
| 98 | 195 | 0.55× | 185○ | Have | 1.35○ | ○ | 5.9× | 45○ | 5.44× | ″ |
| 99 | 190 | 0.55× | 175○ | Have | 1.25○ | ○ | 3.1◎ | 65○ | 5.22× | ″ |
| 100 | 180 | 0.65× | 192○ | Do not have | 1.00◎ | ◎ | 3.5◎ | 100◎ | 4.76× | ″ |
| 101 | 220 | 0.35○ | 165○ | Have | 1.09◎ | ◎ | 2.7◎ | 88◎ | 6.58◎ | ″ |
No.1～64, because the one-tenth of solid core welding wire is grouped into and satisfies necessary condition of the present invention, therefore absorb in whole assessment items of energy (impact property) at the critical encapsulation ratio of giving stability, slag, the pendulum of giving speed (falling property of refractory), anti-undercut, anti-crackle, the hardness of weld metal, the generating capacity that splashes, solid core welding wire, all can access good evaluation result, (embodiment is with reference to table 4,5,6 remarks columns).
On the other hand, No.65～101 because the one-tenth of solid core welding wire is grouped into the necessary condition of discontented unabridged version invention, therefore all obtain bad evaluation result (comparative example is with reference to table 5,6 remarks columns) in described each assessment item.As follows specifically.
No.65 is because the content of C is very few, so the hardness deficiency.That is the undercapacity of weld part and can not using with versatility.
No.66 is because the content surplus of C, so the deoxidation surplus, falling property of refractory, anti-undercut are bad, and splashing amount is also many.In addition, solidification cracking has also taken place.
No.67 is because the content of Si is very few, so the hardness deficiency.That is the undercapacity of weld part and can not using with versatility.In addition, because the electrical impedance of solid core welding wire is low, so the current value of the unit amount of giving uprises, and heat energy and arc force are big, and falling property of refractory, anti-undercut are bad.
No.68 is because the content surplus of Si, so the deoxidation surplus, falling property of refractory, anti-undercut are bad, and confirms the embrittlement of weld metal.
No.69,70 is because the content of Mn is very few, so the hardness deficiency.The undercapacity of weld part and can not using with versatility.Because the electrical impedance of solid core welding wire is low, so the current value of the unit amount of giving uprises, and heat energy and arc force are big, and falling property of refractory, anti-undercut are bad.Confirm the embrittlement of weld metal in addition.
No.71 is because the content surplus of Mn, so the deoxidation surplus, falling property of refractory, anti-undercut are bad.In addition, slag takes place in a large number, and the slag encapsulation ratio uprises.That is, hinted that coating is poor.
No.72 is because the content surplus of Mn, N, so the deoxidation surplus, falling property of refractory, anti-undercut are bad.In addition, slag takes place in a large number, and the slag encapsulation ratio uprises.That is, hinted that coating is poor.In addition, confirm the embrittlement of weld metal, and crackle has also taken place because of the influence of field trash.
No.73 is because of the content surplus of P, so solidification cracking takes place.
No.74 is because of the content surplus of P, and (C content)+{ value that (P content) * 5} calculates (in table 1～3, is expressed as by " value that C+ (P * 5) calculates ".Down together.) height, so solidification cracking takes place.In addition, confirm the embrittlement of weld metal, sputter a large amount of generations.
No.75 is because the content of S is very few, so the viscosity in molten bath and surface tension are declined by less than proper range, thereby can not get the barrier action of the arc force that in advance brings in the molten bath, and therefore, falling property of refractory, anti-undercut are bad.
No.76 is because of the content surplus of S, so solidification cracking has taken place.In addition, because the viscosity of molten drop and surface tension are too small, the easy short circuit in molten drop and molten bath takes place very manyly so splash.In addition, also confirm the weld metal embrittlement.Although falling property of refractory is good, because the viscosity in molten bath and surface tension are too small, so welding bead is sagging easily under the effect of gravity, the undercut (anti-undercut is bad) of upper plate side takes place easily.
The content of its C of No.77, Si, S is all superfluous.Therefore, solidification cracking takes place, and falling property of refractory and anti-undercut are also poor, and the generating capacity that splashes is also many.Also confirm the embrittlement of weld metal.
Amount (oily adhesion amount) surplus of the oil of No.78,79 coatings.Therefore, electric arc tightens, because centrality height, falling property of refractory and anti-undercut deterioration.In addition, heat disperses the C that brings to cause the C concentration in molten bath to rise, and crackle has also taken place.
Though the content separately of its C of No.80 and P satisfies necessary condition of the present invention, because (C content)+{ the value height that (P content) * 5} calculates is so solidification cracking takes place.
The content surplus of No.81 so Cr, thus the viscosity in molten bath and surface tension remain, burn-off and anti-undercut are bad.In addition, a large amount of generation of not only splashing, and slag is also multiple, slag by bag rate height.That is, the hint coating is poor.
No.82 is because of the content surplus of Ni, so the viscosity in molten bath and surface tension surplus, falling property of refractory and anti-undercut are bad.In addition, splash also and to take place in a large number.
No.83 is because of the content surplus of Al, so the viscosity in pond and surface tension surplus, falling property of refractory and anti-undercut are bad.
No.84,85,86,87,88,89 is because the content of Ti, Nb, V, Zr, La, Ce is superfluous respectively, so the viscosity in molten bath and surface tension surplus, falling property of refractory and anti-undercut are bad.In addition, a large amount of generation of not only splashing, slag also takes place in a large number, and the encapsulation ratio of slag uprises.Hinting that promptly coating is poor.
No.90 is because of the content surplus of B, so solidification cracking takes place.
No.91 is because of the content surplus of N, so although do not produce pore, the weld metal embrittlement.Crackle has also taken place under the influence of field trash.Because the viscosity in molten bath and surface tension are too small, welding bead is sagging easily under the effect of gravity, so the undercut (anti-undercut is bad) of upper plate side easily takes place.
No.92, the 93 content surpluses because of O, so the field trash change is many, solidification cracking takes place.Because the viscosity in molten bath and surface tension are too small, so the easy short circuit in molten drop and molten bath is splashed and taken place very manyly.Confirm the embrittlement of weld metal in addition.Although falling property of refractory is good, the molten bath causes saggingly because of gravity easily, and the undercut (anti-undercut is bad) of upper plate side easily takes place.Slag is also multiple, slag by bag rate height.Hinting that promptly coating is poor.
No.94 is because of the content surplus of Mo, so the viscosity in molten bath and surface tension surplus, falling property of refractory and anti-undercut are bad.Splash in addition and also take place in a large number.
No.95 is a kind of of the solid core welding wire sold on the market, but the content of its Si and S lacks than necessary condition of the present invention, the content of P and (C content)+value that (P content) * 5} calculates, and oily adhesion amount is than necessary condition surplus of the present invention.Because the content of Si is very few, so the hardness deficiency.That is the undercapacity of weld part and can not using with versatility.In addition, because the electrical impedance of solid core welding wire is low, so the current value of the unit amount of giving uprises, heat energy and arc force are big, in addition, because the content of S is very few, so the viscosity and the surface tension in molten bath are declined by less than proper range, therefore, can not get the barrier action of the arc force that in advance brings in the molten bath, both combine and cause easily taking place burn-off and undercut.In addition, because the content surplus of P, (C content)+{ crackle so also can take place in the value height that (P content) * 5} calculates.
No.96 also is a kind of of the solid core welding wire sold on the market, but its content surplus of C, Mn, B, Mo not only, and (C content)+value that (P content) * 5} calculates and oily adhesion amount surplus, and the content of S is very few.Therefore, because crackle takes place because of running through weldering in content and the oily adhesion amount surplus of C, B.In addition, because the content surplus of C, Mn, Mo, the content of S is very few, so the viscosity in molten bath and surface tension significantly increase, falling property of refractory and anti-undercut are bad.In addition, splash also and to take place in a large number.In addition, because the Mn height, so slag encapsulation ratio height takes place in slag in a large number.Hinting that promptly coating is poor.
No.97 distinguishes surplus because of O and the content of N, oily adhesion amount, so the viscosity in molten bath is too small, easily because of gravity causes welding bead sagging, the undercut (anti-undercut is bad) of upper plate side takes place easily.In addition, because oily adhesion amount is superfluous respectively, so electric arc tightens, falling property of refractory also reduces.In addition, because field trash also increases, thus not only confirm the embrittlement of weld metal, but also solidification cracking has taken place.And the slag of oxide also takes place in a large number, slag encapsulation ratio height.Hinting that promptly coating is poor.
No.98 is because the undercut (anti-undercut is bad) of upper plate side so the viscosity in molten bath is too small, easily because of gravity causes welding bead sagging, therefore easily takes place in content and the oily adhesive rate surplus of O.In addition, because oily adhesive rate surplus, so electric arc tightens, falling property of refractory also reduces.In addition, because field trash increases, the oily simultaneously C that carries out thermal decomposition and produce causes the concentration of the C in the molten bath also to increase, so solidification cracking has taken place.In addition, the slag of oxide also takes place in a large number, and the encapsulation ratio of slag uprises.That is, hinting that coating is poor.
No.99 is because of oily adhesive rate surplus, so electric arc tightens, the centrality height causes falling property of refractory and anti-undercut bad thus.The C that produces owing to thermal decomposition causes the concentration of the C in the molten bath to increase, so crackle has also taken place.
No.100 is because the content of S is all very few, so the viscosity in molten bath and surface tension are declined by less than proper range, can not get the barrier action of the arc force that in advance brings in the molten bath.Therefore, falling property of refractory and anti-undercut are bad.
Though the content separately of its C of No.101 and P satisfies necessary condition of the present invention, because (C content)+{ value that (P content) * 5} calculates surpasses necessary condition of the present invention, so solidification cracking takes place.
Claims (7)
1. a solid core welding wire that is used to carry out arc welding is characterized in that, contains: the S of the Si of the C of 0.005～0.080 quality %, 0.30～1.20 quality %, the Mn of 1.15～1.65 quality %, 0.050～0.200 quality %,
And, respectively P is suppressed at below the 0.017 quality %, O is suppressed at below the 0.0070 quality %, N is suppressed at below the 0.0050 quality %,
And, satisfy: (C content)+(P content) * 5}≤0.135 quality %,
And, as impurity, Ti is limited to below the 0.15 quality %, Zr is limited to below the 0.10 quality %, B is limited to below the 0.0050 quality %, respectively Cr, Ni, Nb, V, La and Ce is limited to below the 0.20 quality %,
And, the oily adhesion amount on this solid core welding wire surface is defined as in every 10kg welding wire below 1.2g.
2. solid core welding wire according to claim 1 is characterized in that, contains the following Mo of 0.30 quality %.
3. solid core welding wire according to claim 1 is characterized in that, contains the Al of 0.006～0.040 quality %.
4. solid core welding wire according to claim 1 is characterized in that, makes K, Li, Na and Ca be attached to welding wire surface, and the total adhesion amount of these elements is counted 0.005～0.300g with every 10kg welding wire.
5. solid core welding wire according to claim 1 is characterized in that, makes MoS
2Be attached to welding wire surface, its adhesion amount is counted 0.01～1.00g with every 10kg welding wire.
6. solid core welding wire according to claim 1 is characterized in that, has implemented copper facing at welding wire surface.
7. solid core welding wire according to claim 1 is characterized in that, it is not implement copper-plated no copper plating soldering wire at welding wire surface.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
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| JP2006356866 | 2006-12-29 | ||
| JP2006356866 | 2006-12-29 | ||
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| JP2007067748 | 2007-03-16 | ||
| JP2007-067748 | 2007-03-16 | ||
| JP2007067748A JP4909138B2 (en) | 2006-12-29 | 2007-03-16 | Solid wire |
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| CN101209518A true CN101209518A (en) | 2008-07-02 |
| CN101209518B CN101209518B (en) | 2013-08-21 |
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| CN2007101886486A Active CN101209518B (en) | 2006-12-29 | 2007-11-21 | Solid wire |
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| JP (1) | JP4909138B2 (en) |
| KR (1) | KR20080063161A (en) |
| CN (1) | CN101209518B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394825A (en) * | 2013-08-02 | 2013-11-20 | 山东恒运电器有限公司 | Active additive used for solid welding wire free of plated copper and preparation method thereof |
| CN104801892A (en) * | 2015-04-24 | 2015-07-29 | 柳州金茂机械有限公司 | Manufacturing process of welding wire for welding process |
| CN105127613A (en) * | 2015-10-12 | 2015-12-09 | 国家电网公司 | Flux-cored wire for welding Q420 steel and preparation method thereof |
| CN109514127A (en) * | 2018-12-29 | 2019-03-26 | 天津市金桥焊材集团有限公司 | A kind of low spatter rate ER50-6 gas shielded solid welding wire |
| CN111922550A (en) * | 2020-08-20 | 2020-11-13 | 四川西冶新材料股份有限公司 | Gas shielded welding wire, preparation method comprising gas shielded welding wire and welding method comprising gas shielded welding wire |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009022504A1 (en) | 2009-05-25 | 2010-12-02 | Forschungs- und Qualitätszentrum Oderbrücke gGmbH | Additional wire for laser welding high- and high strength interstitial-free steel produced by defined chemical analysis, where the steel is modified so that available titanium excess binds additional carbon- and nitrogen atom in the wire |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5945096A (en) * | 1982-09-08 | 1984-03-13 | Daido Steel Co Ltd | Welding material |
| JPH0569181A (en) * | 1991-07-05 | 1993-03-23 | Kawasaki Steel Corp | Steel wire for gas shield arc welding and manufacture thereof |
| CN1034637C (en) * | 1994-01-29 | 1997-04-23 | 沈韬 | Specially thin welding wire for carbon dioxide gas protected welding |
| JP2922814B2 (en) * | 1995-03-10 | 1999-07-26 | 株式会社神戸製鋼所 | Gas shielded arc welding method |
| JP3404264B2 (en) * | 1997-09-29 | 2003-05-06 | 株式会社神戸製鋼所 | Solid wire for MAG welding |
| JP2000107881A (en) * | 1998-10-07 | 2000-04-18 | Nippon Steel Weld Prod & Eng Co Ltd | Welding wire |
| CN1254348C (en) * | 2002-01-31 | 2006-05-03 | 杰富意钢铁株式会社 | Steel wire for carbon dioxide shielded arc welding and welding process asing the same |
| JP3747238B2 (en) * | 2002-04-23 | 2006-02-22 | 株式会社神戸製鋼所 | Solid wire for welding without plating |
| JP2004195543A (en) * | 2002-12-20 | 2004-07-15 | Jfe Steel Kk | Steel wire for gas shielded arc welding |
| JP2004314099A (en) * | 2003-04-14 | 2004-11-11 | Nippon Steel & Sumikin Welding Co Ltd | Wire for gas-shielded arc welding |
| KR20060001022A (en) * | 2004-06-30 | 2006-01-06 | 고려용접봉 주식회사 | Surface treatment oil for welding wire and welding wire treated by concerned oil |
| TWI295603B (en) * | 2005-06-15 | 2008-04-11 | Kobe Steel Ltd | Solid wires for gas-shielded arc welding |
-
2007
- 2007-03-16 JP JP2007067748A patent/JP4909138B2/en active Active
- 2007-11-21 CN CN2007101886486A patent/CN101209518B/en active Active
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103394825A (en) * | 2013-08-02 | 2013-11-20 | 山东恒运电器有限公司 | Active additive used for solid welding wire free of plated copper and preparation method thereof |
| CN104801892A (en) * | 2015-04-24 | 2015-07-29 | 柳州金茂机械有限公司 | Manufacturing process of welding wire for welding process |
| CN105127613A (en) * | 2015-10-12 | 2015-12-09 | 国家电网公司 | Flux-cored wire for welding Q420 steel and preparation method thereof |
| CN109514127A (en) * | 2018-12-29 | 2019-03-26 | 天津市金桥焊材集团有限公司 | A kind of low spatter rate ER50-6 gas shielded solid welding wire |
| CN111922550A (en) * | 2020-08-20 | 2020-11-13 | 四川西冶新材料股份有限公司 | Gas shielded welding wire, preparation method comprising gas shielded welding wire and welding method comprising gas shielded welding wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008178906A (en) | 2008-08-07 |
| KR20080063161A (en) | 2008-07-03 |
| CN101209518B (en) | 2013-08-21 |
| JP4909138B2 (en) | 2012-04-04 |
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