CN102267023A - Metal-powder type stainless steel flux-cored wire - Google Patents
Metal-powder type stainless steel flux-cored wire Download PDFInfo
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Abstract
The invention relates to a metal-powder type stainless steel flux-cored wire and belongs to the technical field of welding materials. For the metal-powder type stainless steel flux-cored wire, a stainless steel belt serves as an outer skin, and a flux core is filled in the stainless steel belt at the filling rate of 30 to 40 percent to manufacture the flux-cored wire, wherein the flux core comprises chromium powder, nickel powder, molybdenum powder, manganese powder, an arc stabilizer, a deslagging agent and iron powder. The metal-powder type stainless steel flux-cored wire has the advantages of reasonable compatibility, strong synergistic effect among components, good toughness, high metal strength and high corrosion resistance of a welded seam, stable combustion of the welding wire during welding, and low splattering; the welded seam is bright and elegant in molding; real production processes are simplified without subsequent acid-washing, grinding, polishing and the like; and industrialized production is more facilitated.
Description
Technical field
The present invention relates to a kind of flux-cored wire, relate in particular to a kind of metal powder type stainless flux-cored wire, belong to technical field of welding materials.
Background technology
Flux-cored wire is a kind of novel welding material that develops rapidly in recent years, is the highest product of technology content in the existing welding material.So flux-cored wire also extensively is used in the manufacturing and the reparation of industries such as building, bridge, chemical industry, metallurgy, electric power and industry reparation.
Flux-cored wire can have different sorting techniques by different situations, and the difference as by the protection situation can be divided into gas shield (CO
2, rich Ar mist) and two kinds of self-shields; Can be divided into below the diameter 2.0mm with more than the thick diameter 2.0mm by gage of wire; Then can be divided into slag making type flux-cored wire (titanium oxide type, lime-titania type, fluorine calcium type) and metal powder type flux-cored wire by packing material.And, be widely used in the welding of stainless steel material because the metal powder type welding wire has the few and characteristics such as slag flux-cored wire burn-off rate is fast, electric arc weakness of solid core welding wire slag amount concurrently.So the metal powder type flux-cored wire becomes one of main research direction in this area.
As Chinese patent application (publication number: CN 101966628A) disclose the medicinal powder composition of super-duplex stainless steel flux-cored wire, its concrete technical scheme is to adopt common 304L stainless steel band as crust, the inner medicinal powder composition of filling, be rolled into flux-cored wire, the component of described medicinal powder composition and the mass percent of proportioning are: rutile 19%～38%; Zircon sand 3%～5%; Potassium fluoroaluminate 2%～4%; Almag 1%～2%; Chromium nitride 1%～3%; Crome metal 30%～35%; Metallic nickel 8%～10%; Electrolytic manganese metal 1%～2%; Metal molybdenum 14.5%～20%; Antimony oxide 0.5%～1.0%.Though adopt this flux-cored wire to solve the welding requirements of welding 2507 super-duplex stainless steels, the mechanical property of weld metal is also preferable, but it is just at the mutually stainless welding of 2507 super ratios, range of application is less, when not solving its metal powder type stainless flux-cored wire preferably yet and being used to weld steel when welding seam toughness difference and welding because the bigger problem of flue dust that high deposition rate produced, and its medicine core powder compatibility is unreasonable, causes the fragility of weld metal to change easily.And the also filling rate of common drug core just of its filling rate, filling rate is between 17%～24%.
Summary of the invention
The present invention is directed to the defective that exists in the above prior art, the metal powder type stainless flux-cored wire that a kind of compatibility is reasonable, welding performance is superior when being used for soldering stainless steel is provided.
The objective of the invention is to be achieved by the following technical programs, a kind of metal powder type stainless flux-cored wire is characterized in that: adopt stainless steel belt as crust, and inner charge core, filling rate is 30%～40%, makes flux-cored wire; Described medicine core comprises the percetage by weight of following composition:
Chromium powder: 15%～25%; Nickel powder: 5.0%～15%; Molybdenum powder: 0.1%～0.8%; Manganese powder: 0.2%～0.8%; Arc stabilizer: 1.0%～5.0%; Surplus is an iron powder.
Above-mentioned a kind of metal powder type stainless flux-cored wire of the present invention, described medicine core also comprises the percetage by weight of following composition: take off the slag agent: 0.2%～1.0%.
Above-mentioned a kind of metal powder type stainless flux-cored wire of the present invention, in the medicine core between each composition compatibility reasonable, can play good coordinative role, main component is to adopt iron powder in the medicine core of the present invention, iron powder is used in combination with other metal powder, in the time of making welding, the weld metal physical efficiency forms the ferritic-austenitic two phase structure, has guaranteed that the weld metal zone has preferable decay resistance and good mechanical performance; In the medicine core, add compositions such as chromium, nickel, molybdenum, manganese, more help having improved the performance of the weld metal of weld, guaranteed the joint effect after the welding.The above-mentioned described flux-cored wire of the present invention mainly is a soldering stainless steel material when being used for the welding job temperature and being lower than 300 ℃; Optimum mode is to be used to weld austenitic stainless steel material, as austenitic stainless steel materials such as 08Cr18Ni9,08Cr18Ni9Ti9.After flux-cored wire of the present invention is used for welding, the weld metal smooth surface, clean, do not need to handle the welding slag of removing face of weld, not only welding quality is good again, the advantage that the strong corrosion resistant of weld metal zone and mechanical strength are high, and simplified production process greatly, reduced production cost.Metal powder used in the medicine core of the present invention can not be an alloy, can adopt the simple metal powder yet.Impurity content when adopting the more effective control medicinal powder of simple metal powder energy to infiltrate to deposited metal, as carbon, sulphur, phosphorus etc., thereby the composition of flux-cored wire and stainless steel grade are complementary in the time of also further guaranteeing to weld, so that satisfy mechanical property, and as performances such as corrosion resistance, phase ratios.The particle size of each component of medicine core of the present invention preferably can satisfy all crosses 50～100 mesh sieves, and suitable medicine slug particle more helps mixing between each composition, and it is little to splash when making welding, and electric arc more moves stable.
As preferably, above-mentioned a kind of metal powder type stainless flux-cored wire, it is characterized in that: described medicine core comprises the percetage by weight of following composition:
Chromium powder: 18%～22%; Nickel powder: 8.0%～12%; Molybdenum powder: 0.2%～0.5%; Manganese powder: 0.4%～0.6%; Arc stabilizer: 1.0%～3.0%; Take off the slag agent: 0.5%～0.8%; Surplus is an iron powder.
Above-mentioned a kind of metal powder type stainless flux-cored wire of the present invention, transition elements material when wherein said chromium powder is the conduct welding in the weld metal, chromium powder can improve pitting corrosion resistant performance, the corrosion resistance of weld metal and the intensity of welding have been guaranteed, in the prior art in the used medicinal powder of common flux-cored wire the addition of chromium powder contain 35% percetage by weight at least and just can reach requirement, the raw material consumption is big, and effect neither be fine.Compared with prior art, used chromium powder just can guarantee highly corrosion resistant and weld strength at 15%～25% mass percent in the medicine core of the present invention, has reduced the use of material greatly, and can more effectively produce synergy with other composition.If the addition of chromium powder is too high in the medicine core of the present invention, cause easily that then fragility changes, the toughness that impacts reduces; If if the addition of chromium powder is low excessively, then do not reaching requirement aspect corrosion resistance and the weld strength yet.
Major metal material during above-mentioned described iron powder is formed as the medicine core forms the Tie Su district in weld metal, make weld metal intensity height, if but the amount that adds is too much, and can make the Tie Su district excessive, thereby cause weld metal fragility to become big, jackknifing easily.And adopt the amount of iron powder used in the medicine core of the present invention, and in conjunction with the performance of the austenitic area that other component produced in the component of the present invention, the distribution of the ferrite area of formation and austenitic area is more closed join, guarantee to form the weld metal of strong mechanical performance and strong corrosion resistant.
Above-mentioned described nickel powder also is as the transition alloy elements in a kind of weld metal, is the stable microstructural metallic element of austenite that produces of a kind of energy, can strengthen the corrosion resistance and the toughness of weld metal.If the amount that adds is low excessively, then the toughness deficiency is easy to generate embrittlement cracking; If the amount that adds is too high, thereby then formed austenite branch digit rate can excessively make intensity be tending towards reducing, and can influence the performance of the weld metal after the welding.
Above-mentioned described molybdenum powder is the necessary a kind of composition of high strength that guarantees the corrosion resistance of weld metal, in conjunction with other component of the present invention, can better bring into play its effect.If the amount that adds is low excessively, then can cause effect not enough, make the corrosion resistance of weld metal and intensity all not enough; If the amount that adds is too high, then can make in the weld metal structure and produce intermetallic compound, thereby make toughness reduce, increased the fragility of weld metal.
Described manganese powder is a kind of transition alloy elements in the weld metal equally, can regulate the microstructure of weld metal, thereby helps austenitic production, is used in combination with nickel powder of the present invention, more helps the corrosion resistance and the toughness of weld metal.
As preferably, described arc stabilizer is one or more in fluoride, aluminium powder, the manganese-silicon.It is slag making that described arc stabilizer mainly acts on, and can regulate the physical and chemical performance of slag, refinement molten drop and raising fusing coefficient, increase the flowability of slag, reduce the viscosity of slag, thereby can guarantee the arc stability burning, also guaranteed the performance of the all-position welding of welding wire.Arc stabilizer adopts fluoride, can regulate the oxygen amount in the weld seam, in conjunction with other component of the present invention, can effectively remove the effect of hydrogen, thereby play the effect of stabilising arc; Fluoride can be potassium fluoride, sodium fluoride, prodan etc.Arc stabilizer adopts aluminium powder, and aluminium powder is a kind of strong deoxidier, if can use with nitride bonded, generates stable oxide and nitride, can further guarantee the arc stability burning.But aluminium powder is a kind of strong ferrite former, if the amount that adds is too high, can enlarge ferrite area, dwindle the austenitic area, cause weld metal not undergo phase transition, also can not produce the grain refinement effect, thereby reduced the plasticity of weld metal greatly in cooling procedure, cause the weld metal embrittlement, and within the scope of the invention,, can solve this problem in conjunction with other component of the present invention, make the stabilising arc better effects if, the plasticity of weld metal and toughness are also better.
As preferably, above-mentioned described to take off the slag agent be rare earth element (RE).Adopt rare earth element can purify crystal boundary as taking off the slag agent, crystal grain thinning more help improving the intensity of weld seam, and it is effective to take off slag, and the face of weld that takes off behind the slag is smooth, does not need to adopt in addition other operation to take off slag and handles.Further preferred, described rare earth element (RE) is one or more mixing in cerium (Ce), lanthanum (La), praseodymium (Pr), neodymium (Nd), the scandium (Sc).Because the chemical property of Ce and La rare earth element is the most active, as preferably, described rare earth element is a mishmetal, the percent by weight of Ce is 30%～50% in the mishmetal, the percent by weight of La is 10%～40%, the percent by weight of Nd is 10%～15%, and the percent by weight of Pr is 5～10%, and surplus is a unavoidable impurities.The present invention adopts the mishmetal of this composition more to help improving the mechanical strength and the toughness of weld metal.
The filling rate of above-mentioned flux-cored wire of the present invention is different from the filling rate of the flux-cored wire of this area routine, the filling rate of conventional flux-cored wire is generally about 20%, if the filling rate of conventional flux-cored wire is too high, can cause the poor stability when welding, also can cause the corrosion resistance and the mechanical properties decrease of weld metal.And the present invention is by improving, and makes to cooperate more rationally between the medicine core between each component, increases the filling rate of flux-cored wire of the present invention, increases the intensity that filling rate can strengthen solder joint, improve the efficient of welding, and the pitting corrosion resistance of weld metal zone is stronger.As preferably, described filling rate is 32.5%～36%.In in above-mentioned preferable range, the stability in the time of can also guaranteeing to weld when increasing the every performance of weld metal zone, the stabilising arc effect is also better, and the flux-cored wire burning is more stable.
The above-mentioned a kind of metal powder type stainless flux-cored wire of the present invention, the present invention selects the crust of stainless steel steel as flux-cored wire for use, can be good at being used in combination with above-mentioned described medicine core of the present invention, has synergy, the impurity that makes the weld metal zone still less, also help regulating being made into of deposited metal composition after the built-up welding, the loss of the composition of not avoided when also having remedied because of welding, above-mentioned described stainless steel belt can adopt the stainless steel belt of this area routine.As preferably, above-mentioned described stainless steel belt is 304L stainless steel belt or 308L stainless steel belt.Select for use the stainless steel belt in the preferable range more effectively to combine, play synergy, improve the performance of weld metal in medicine core of the present invention; Simultaneously, also help mechanical property and the corrosion resistance that improves the weld metal after welding.
As preferably, the thickness of above-mentioned described stainless steel belt is 0.4mm～0.7mm; The width of described steel band is 8mm～12mm.Select for use above-mentioned stainless steel belt more to help the actual production operation, equally can be more effective in conjunction with medicine core of the present invention, make the flux-cored wire quality of making better.
Above-mentioned a kind of metal powder type stainless flux-cored wire of the present invention can adopt the conventional method of this area to prepare.As adopt following method to make metal powder type stainless flux-cored wire of the present invention: stainless steel belt is pressed into the U type by make-up machine, then above-mentioned medicine core of the present invention is filled in the U type groove, making filling rate is in 30%～40%, again U type channel opening place is healed up and form the O type, the medicine core is wrapped in wherein, again by wire drawing machine, by road drawing, tube reducing, make diameter between 0.8mm～4.0mm, obtain the metal powder type stainless flux-cored wire.
In sum, the present invention has the following advantages:
1. a kind of metal powder type stainless flux-cored wire of the present invention, compatibility is reasonable between each composition of medicine core, synergy is preferable between composition, and the weld metal after flux-cored wire is used to weld has good toughness, the high more excellent mechanical property of intensity, and fruit is good to have corrosion resistance.
2. a kind of metal powder type stainless flux-cored wire of the present invention, it is fast and flue dust is less, welding stability is higher to have deposition rate when being used to weld, flameholding, has the little advantage of splashing, improved the performance of practical operation, big, the big problem of splashing of flue dust when having improved flux-cored wire of the prior art and welding soon because of deposition rate.
3. a kind of metal powder type stainless flux-cored wire of the present invention, the filling rate of medicine core is 30%～40%, be different from common flux-cored wire, when existing common flux-cored wire filling rate reaches scope of the present invention, poor effect during welding, combustion instability, the stabilising arc weak effect, and the intensity of weld metal does not reach requirement yet, and adopts the filling rate of flux-cored wire of the present invention higher, can strengthen the intensity of solder joint, improve the efficient of welding, and can make the pitting corrosion resistance of weld metal zone stronger, the arc burning in the time of can guaranteeing to weld simultaneously is stable, and stabilising arc is effective.
4. after adopting metal powder type stainless flux-cored wire welding of the present invention, weld seam has light, moulding is attractive in appearance, need not operations such as follow-up pickling, polishing, polishing, has simplified actual production process, more helps suitability for industrialized production.
The specific embodiment
Below by specific embodiment, technical scheme of the present invention is described in further detail, but the present invention is not limited to these embodiment.
Selecting thickness in following examples for use is 0.4mm～0.7mm; Width is the stainless steel belt of 8mm～12mm; The all material of the core of medicine described in following examples was 50～150 mesh sieves.
Embodiment 1
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 15%; Nickel powder: 10%; Molybdenum powder: 0.5%; Manganese powder: 0.2%; Arc stabilizer: 1.0%; Surplus is an iron powder; Described arc stabilizer is a potassium fluoride, with above-mentioned each selected powder material put into mix in the mixer standby;
Selecting width for use is 12mm, and thickness is the 308L stainless steel belt of 0.4mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then above-mentioned medicine core is filled in the U-lag, making filling rate is 32.5%, again U type channel opening place is healed up and make the O type that forms, thereby the medicine core is wrapped in wherein, pass through wire drawing machine again, by road drawing, tube reducing, making diameter at last is 1.0mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Embodiment 2
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 25%; Nickel powder: 10%; Molybdenum powder: 0.2%; Manganese powder: 0.6%; Arc stabilizer: 3.0%; Take off the slag agent: rare earth element (RE); Surplus is an iron powder; Also comprise 0.2% chromium nitride powder, described arc stabilizer is an aluminium powder, and described to take off the slag agent be rare earth element (RE), and described rare earth element (RE) is a kind of in cerium, lanthanum, praseodymium, neodymium, the scandium; The adding of described chromium nitride helps acting synergistically with taking off slag agent aluminium powder, makes to form the stable slag agent of taking off, and also helps making intensity and the toughness of improving weld seam; Above-mentioned each selected powder material put into to mix in the mixer together obtain medicine core of the present invention, standby;
Selecting width for use is 8mm, and thickness is the 308L stainless steel belt of 0.7mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then the medicine core after above-mentioned the mixing is filled in the U-lag, making filling rate is 40%, again U type channel opening place is healed up and make the O type that forms, thereby the medicine core is wrapped in wherein, pass through wire drawing machine again, by road drawing, tube reducing, making diameter at last is 1.4mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Embodiment 3
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 22%; Nickel powder: 15%; Molybdenum powder: 0.1%; Manganese powder: 0.4%; Arc stabilizer: 2.0%; Take off the slag agent: 0.5%; Surplus is an iron powder; Described arc stabilizer is a manganese-silicon, and described to take off the slag agent be rare earth element (RE), and described rare earth element (RE) is a kind of in cerium, lanthanum, praseodymium, neodymium, the scandium; Above-mentioned each selected powder material put into to mix in the mixer together obtain medicine core of the present invention, standby;
Selecting width for use is 8mm, and thickness is the 308L stainless steel belt of 0.7mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then the medicine core after above-mentioned the mixing is filled in the U-lag, making filling rate is 40%, again U type channel opening place is healed up and make the O type that forms, thereby the medicine core is wrapped in wherein, pass through wire drawing machine again, by road drawing, tube reducing, making diameter at last is 1.4mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Embodiment 4
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 18%; Nickel powder: 8.0%; Molybdenum powder: 0.8%; Manganese powder: 0.8%; Arc stabilizer: 5.0%; Take off the slag agent: 0.8%; Surplus is an iron powder; Described arc stabilizer is a potassium fluoride; It is described that to take off the slag agent be rare earth element (RE), described rare earth element (RE) is a mishmetal, the percent by weight of Ce is 30%～50% in the mishmetal, the percent by weight of La is 10%～40%, the percent by weight of Nd is 10%～15%, the percent by weight of Pr is 5～10%, and surplus is a unavoidable impurities; Above-mentioned each selected powder material put into to mix in the mixer together obtain medicine core of the present invention, standby;
Selecting width for use is 10mm, and thickness is the 304L stainless steel belt of 0.5mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then the medicine core after above-mentioned the mixing is filled in the U-lag, making filling rate is 35%, again U type channel opening place is healed up and make the O type that forms, thereby the medicine core is wrapped in wherein, pass through wire drawing machine again, by road drawing, tube reducing, making diameter at last is 2.0mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Embodiment 5
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 20%; Nickel powder: 5.0%; Molybdenum powder: 0.4%; Manganese powder: 0.5%; Arc stabilizer: 2.5%; Take off the slag agent: 1.0%; Surplus is an iron powder; Described arc stabilizer is manganese-silicon and prodan, and both weight ratios are 1: 1; It is described that to take off the slag agent be rare earth element (RE), described rare earth element (RE) is a mishmetal, the percent by weight of C e is 30%～50% in the mishmetal, the percent by weight of La is 10%～40%, the percent by weight of Nd is 10%～15%, the percent by weight of Pr is 5～10%, and surplus is a unavoidable impurities; Above-mentioned each selected powder material put into to mix in the mixer together obtain medicine core of the present invention, standby;
Selecting width for use is 10mm, and thickness is the 308L stainless steel belt of 0.5mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then the medicine core after above-mentioned the mixing is filled in the U-lag, making filling rate is 30%, again U type channel opening place is healed up and make the O type that forms, thereby the medicine core is wrapped in wherein, pass through wire drawing machine again, by road drawing, tube reducing, making diameter at last is 1.5mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Embodiment 6
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 23%; Nickel powder: 12%; Molybdenum powder: 0.3%; Manganese powder: 0.7%; Arc stabilizer: 2.0%; Take off the slag agent: 0.6%; Surplus is an iron powder; Described arc stabilizer is a manganese-silicon; It is described that to take off the slag agent be rare earth element (RE), described rare earth element (RE) is a mishmetal, the percent by weight of Ce is 30%～50% in the mishmetal, the percent by weight of La is 10%～40%, the percent by weight of Nd is 10%～15%, the percent by weight of Pr is 5～10%, and surplus is a unavoidable impurities; Above-mentioned each selected powder material put into to mix in the mixer together obtain medicine core of the present invention, standby;
Selecting width for use is 10mm, and thickness is the 308L stainless steel belt of 0.5mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then the medicine core after above-mentioned the mixing is filled in the U-lag, making filling rate is 34.5%, again U type channel opening place is healed up and make the O type that forms, thereby the medicine core is wrapped in wherein, pass through wire drawing machine again, by road drawing, tube reducing, making diameter at last is 1.5mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Embodiment 7
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 17%; Nickel powder: 11%; Molybdenum powder: 0.7%; Manganese powder: 0.3%; Arc stabilizer: 4.0%; Take off the slag agent: 0.4%; Surplus is an iron powder; Also comprise 0.1% chromium nitride powder; Described arc stabilizer is an aluminium powder; It is described that to take off the slag agent be rare earth element (RE), described rare earth element (RE) is a mishmetal, the percent by weight of Ce is 30%～50% in the mishmetal, the percent by weight of La is 10%～40%, the percent by weight of Nd is 10%～15%, the percent by weight of Pr is 5～10%, and surplus is a unavoidable impurities; Above-mentioned each selected powder material put into to mix in the mixer together obtain medicine core of the present invention, standby;
Selecting width for use is 10mm, and thickness is the 308L stainless steel belt of 0.5mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then the medicine core after above-mentioned the mixing is filled in the U-lag, making filling rate is 36%, again U type channel opening place is healed up and make the O type that forms, thereby the medicine core is wrapped in wherein, pass through wire drawing machine again, by road drawing, tube reducing, making diameter at last is 1.6mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Embodiment 8
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 19.5%; Nickel powder: 9.45%; Molybdenum powder: 0.47%; Manganese powder: 0.58%; Arc stabilizer: 2.0%; Surplus is an iron powder; Described arc stabilizer is a prodan, with above-mentioned each selected powder material put into mix in the mixer standby;
Selecting width for use is 12mm, and thickness is the 308L stainless steel belt of 0.4mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then above-mentioned medicine core is filled in the U-lag, making filling rate is 34%, U type channel opening place is healed up to make the O type that forms again, thereby the medicine core is wrapped in wherein, again by wire drawing machine, by road drawing, tube reducing, making diameter at last is 1.0mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Embodiment 9
The medicine core of selecting for use is formed by following composition weight portion:
Chromium powder: 21%; Nickel powder: 8%; Molybdenum powder: 0.45%; Manganese powder: 0.6%; Arc stabilizer: 1.8%; Surplus is an iron powder; Also comprise 0.1% chromium nitride powder, described arc stabilizer is an aluminium powder, with above-mentioned each selected powder material put into mix in the mixer standby;
Selecting width for use is 12mm, and thickness is the 304L stainless steel belt of 0.6mm, as the crust of flux-cored wire of the present invention, after the stainless steel belt rust cleaning that is about to choose, the oil removing, is pressed into the U type by make-up machine; Then above-mentioned medicine core is filled in the U-lag, making filling rate is 33%, U type channel opening place is healed up to make the O type that forms again, thereby the medicine core is wrapped in wherein, again by wire drawing machine, by road drawing, tube reducing, making diameter at last is 1.0mm, promptly obtains metal powder type stainless flux-cored wire of the present invention.
Metal powder type stainless flux-cored wire in picked at random the foregoing description is at 100%CO
2Weld under the gas shiled, welding current 150～180A welds under the condition of weldingvoltage 25～35V, and speed of welding is 0.8m/min, and throughput is 12L/min.Data in the following table 1 are to welding technological test result.
Table 1:
Data in the following table 2 are to select for use the flux-cored wire in the above embodiment of the present invention to weld at random, are used for the soldering stainless steel material, when the welding job temperature is lower than 300 ℃, to welding the result that tests of leading indicator of back weld seam.
Table 2:
Tension test in the above-mentioned table 2 is carried out according to national GB/T-228-2002 standard; Described impact test be with each test specimen under-20 ℃ temperature conditions, carry out 3 tests at least, get its mean value, if the mean value maximum is no more than 27J, result of the test master difference or defective then; Described pitting test is to carry out according to JISG0578, test specimen is concentrated carried out pitting test, and corrosion loss is evaluated; If corrosion loss is at 0.1g/mm
2Below, then be judged to be; If corrosion loss is at 0.1g/mm
2～0.2g/mm
2As between, then be relatively poor; If corrosion loss 〉=0.2g/mm
2, it is poor then to be decided to be.
Data from above-mentioned table are passable, find out and adopt metal powder type stainless flux-cored wire of the present invention, not only have excellent decay resistance and impact flexibility, also have splendid welding technological properties and full position welding adaptability simultaneously, can be applied in the industrial production preferably.
Specific embodiment described in the present invention only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although the present invention has been made detailed explanation and has quoted some specific embodiments as proof, to those skilled in the art, only otherwise leave that the spirit and scope of the present invention can be done various variations or correction is obvious.
Claims (9)
1. metal powder type stainless flux-cored wire is characterized in that: adopt stainless steel belt as crust, and inner charge core, filling rate is 30%～40%, makes flux-cored wire; Described medicine core comprises the percetage by weight of following composition:
Chromium powder: 15%～25%; Nickel powder: 5.0%～15%; Molybdenum powder: 0.1%～0.8%; Manganese powder: 0.2%～0.8%; Arc stabilizer: 0.5%～4.0%; Surplus is an iron powder.
2. a kind of metal powder type stainless flux-cored wire according to claim 1, it is characterized in that: described medicine core also comprises the percetage by weight of following composition: take off the slag agent: 0.5%～3.0%.
3. a kind of metal powder type stainless flux-cored wire according to claim 1 is characterized in that: described arc stabilizer is one or more in fluoride, aluminium powder, the manganese-silicon.
4. a kind of metal powder type stainless flux-cored wire according to claim 2 is characterized in that: described to take off the slag agent be rare earth element (RE).
5. a kind of metal powder type stainless flux-cored wire according to claim 4 is characterized in that: described to take off the slag agent be rare earth element (RE) is one or more mixing in cerium, lanthanum, praseodymium, neodymium, the scandium.
6. a kind of metal powder type stainless flux-cored wire according to claim 4, it is characterized in that: described rare earth element (RE) is a mishmetal, the percent by weight of Ce is 30%～50% in the mishmetal, the percent by weight of La is 10%～40%, the percent by weight of Nd is 10%～15%, the percent by weight of Pr is 5～10%, and surplus is a unavoidable impurities.
7. according to any described a kind of metal powder type stainless flux-cored wire among the claim 1-6, it is characterized in that: described filling rate is 32.5%～36%.
8. a kind of metal powder type stainless flux-cored wire according to claim 1 is characterized in that: described stainless steel belt is a not rusty gold steel steel band of 308L stainless steel belt or 304L.
9. according to claim 1 or 7 described a kind of metal powder type stainless flux-cored wires, it is characterized in that: the thickness of described stainless steel belt is 0.4mm～0.7mm; The width of described steel band is 8mm～12mm.
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| CN103551758A (en) * | 2013-10-11 | 2014-02-05 | 四川大西洋焊接材料股份有限公司 | High-toughness metal powder type flux-cored wire for nuclear power projects |
| CN104646859A (en) * | 2015-02-12 | 2015-05-27 | 西安理工大学 | Self-protection flux-cored wire for 2205 duplex stainless steel and preparation method thereof |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10286690A (en) * | 1997-04-15 | 1998-10-27 | Nkk Corp | Covered electrode for austenite base stainless steel |
| CN1209372A (en) * | 1998-07-14 | 1999-03-03 | 王玉彬 | Special flux-cored wirecord for repairing continuous-casting roller |
| CN1820890A (en) * | 2006-04-06 | 2006-08-23 | 北京工业大学 | Submerged-arc welding metal core weldingwire for austenite stainless steel |
| CN101596655A (en) * | 2008-06-03 | 2009-12-09 | 株式会社神户制钢所 | Flux-cored wire for stainless steel |
-
2011
- 2011-07-29 CN CN 201110214709 patent/CN102267023B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10286690A (en) * | 1997-04-15 | 1998-10-27 | Nkk Corp | Covered electrode for austenite base stainless steel |
| CN1209372A (en) * | 1998-07-14 | 1999-03-03 | 王玉彬 | Special flux-cored wirecord for repairing continuous-casting roller |
| CN1820890A (en) * | 2006-04-06 | 2006-08-23 | 北京工业大学 | Submerged-arc welding metal core weldingwire for austenite stainless steel |
| CN101596655A (en) * | 2008-06-03 | 2009-12-09 | 株式会社神户制钢所 | Flux-cored wire for stainless steel |
Cited By (26)
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| CN104858572A (en) * | 2015-03-31 | 2015-08-26 | 上海焊接器材有限公司 | High-chromium ferrite stainless steel metal core flux-cored wire |
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| CN114346521B (en) * | 2021-12-29 | 2023-09-08 | 西安理工大学 | Metal type flux-cored wire and preparation method of stainless steel bearing ring |
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