CN104014948B - A kind of atmospheric corrosion resistance ferrous alloy and without copper plating soldering wire - Google Patents
A kind of atmospheric corrosion resistance ferrous alloy and without copper plating soldering wire Download PDFInfo
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- CN104014948B CN104014948B CN201410053171.0A CN201410053171A CN104014948B CN 104014948 B CN104014948 B CN 104014948B CN 201410053171 A CN201410053171 A CN 201410053171A CN 104014948 B CN104014948 B CN 104014948B
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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
- B23K35/3073—Fe as the principal constituent with Mn as next major constituent
-
- 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
Abstract
The present invention relates to a kind of atmospheric corrosion resistance ferrous alloy and without copper plating soldering wire.By weight percentage, this atmospheric corrosion resistance ferrous alloy comprises following one-tenth and is grouped into: C0.01-0.10%, Mn1.25-1.55%, Mo0.25-0.34%, Ti0.050-0.075%, B0.0029-0.0070%, Cu0.20-0.45%, Si0.01-0.45%, P0.005-0.015%, Al0.030-0.045%, Ni0.01-0.05%, and inevitable impurity.Present invention also offers a kind of without copper plating soldering wire, it is made up of above-mentioned atmospheric corrosion resistance ferrous alloy.Welding wire provided by the present invention can not produce atmospheric corrosion in not copper-plated situation in three months to six months, and its welding performance is suitable with existing copper plating soldering wire, thus, existing copper plating soldering wire can be substituted, unforeseeable economic and social benefit will be produced.
Description
Technical field
The present invention relates to a kind of atmospheric corrosion resistance ferrous alloy and without copper plating soldering wire, belong to metal metallurgy smelting technical field.
Background technology
Welding material is necessary material in the field such as mechanical manufacturing engineering construction, the particularly energy, christmas platform, pipe-line, shipbuilding, railway, traffic, bridge, skyscraper, heavy-duty machinery.
China is promoting a large amount of gas protecting welding wire, welding wire for submerged-arc welding and the flux-cored wire that use in welding material from the eighties always, and has formulated national standard.
In order to prevent atmospheric corrosion when welding wire production under wet season condition, transport, storage, and the welding wire after surface corrosion can make to produce the defects such as weld porosity, slag inclusion, crackle during welding, most of welding wire all plates one deck copper at welding wire surface, thus obtain copper plating soldering wire, to use in market sale processing.
Find in Long-Time Service, it is the material that the copper plating soldering wire adopting electroless copper or electrolytic copper plating to make all can form the serious environment pollutions such as copper liquid and waste gas, and have great harm to human body, the waste liquid formed also can contaminated environment further, more seriously copper plating soldering wire there will be copper smog in welding procedure, and serious harm welder's is healthy.
In addition, after welding wire surface copper facing, weld time wire feed process in, due to the friction between wire feed rolls, wire guiding nipple, copper scale can come off from welding wire surface, residual copper scale in welding wire guiding nipple, when wire feed system is infrequently cleared up, these copper scales can be piled up and cause wire feed extremely even to be stopped work.
Therefore, copper plate is the primary factor determining copper plating soldering wire quality with the adhesive force on surface, and the decision stage has been arrived in copper facing and the commercial viability competition without copper plating soldering wire.
In order to avoid copper plating soldering wire is to the infringement of environment and human body, last century Mo just has many wlding companies in research and development both at home and abroad and supplies without copper plating soldering wire, but this is that presentation surface does not have copper facing without copper plating soldering wire, but has plated other element or material, other difficulty and new problem can be caused again.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of atmospheric corrosion resistance ferrous alloy, this ferrous alloy contains the alloying element of lower content, and welding wire can be made after making welding wire to have good atmospheric corrosion resistance.
The present invention also aims to provide a kind of without copper plating soldering wire, it adopts above-mentioned atmospheric corrosion resistance ferrous alloy to make, this surface without copper plating soldering wire does not need copper facing or other metals can have good atmospheric corrosion resistance, also has good welding performance simultaneously.
For achieving the above object, the invention provides a kind of atmospheric corrosion resistance ferrous alloy, by weight percentage, this atmospheric corrosion resistance ferrous alloy comprises following one-tenth and is grouped into: C0.01-0.10%, Mn1.25-1.55%, Mo0.25-0.34%, Ti0.050-0.075%, B0.0029-0.0070%, Cu0.20-0.45%, Si0.01-0.45% (preferred 0.01-0.15%), P0.005-0.015%, Al0.030-0.045%, Ni0.01-0.05%, and inevitable impurity.
According to specific embodiment of the invention scheme, above-mentioned atmospheric corrosion resistance ferrous alloy can also contain some other metallic element, and preferably, by weight percentage, this atmospheric corrosion resistance ferrous alloy also comprises Cr0.05-0.10%.
According to specific embodiment of the invention scheme, preferably, the inevitable impurity in above-mentioned atmospheric corrosion resistance ferrous alloy comprises: S0.001-0.010%, As+Sb+Sn≤0.005%, O0.0010-0.0050%, N20-200ppm.
According to specific embodiment of the invention scheme, preferably, the composition of above-mentioned atmospheric corrosion resistance ferrous alloy consists of: C0.01-0.10%, Mn1.25-1.55%, Mo0.25-0.34%, Ti0.050-0.075%, B0.0029-0.0070%, Cu0.20-0.45%, Si0.01-0.45%, P0.005-0.015%, Al0.030-0.045%, Ni0.01-0.05%, and inevitable impurity, surplus is Fe.
According to specific embodiment of the invention scheme, preferably, the composition of above-mentioned atmospheric corrosion resistance ferrous alloy consists of: C0.01-0.10%, Mn1.25-1.55%, Mo0.25-0.34%, Ti0.050-0.075%, B0.0029-0.0070%, Cu0.20-0.45%, Si0.01-0.45%, P0.005-0.015%, Al0.030-0.045%, Ni0.01-0.05%, Cr0.05-0.10%, and inevitable impurity, surplus is Fe.
Above-mentioned atmospheric corrosion resistance ferrous alloy provided by the invention can be obtained by smelting.In raw material selection, preferably adopt high-quality iron ore, such as the iron ore of the state such as Australian, Brazilian.The smelting of this atmospheric corrosion resistance ferrous alloy can be carried out according to following technological process: T.D.S molten iron pre-desulfurization-80t pushes up low top-bottom blowing stove smelting-RH Fruit storage-RV92 ingot shape bet.
Present invention also offers a kind of without copper plating soldering wire, it is made up of above-mentioned atmospheric corrosion resistance ferrous alloy.
According to specific embodiment of the invention scheme, preferably, the above-mentioned diameter without copper plating soldering wire is 0.4-6mm, is specifically as follows 6mm, 5mm, 4.2mm, 3.5mm, 2.5mm, 2.0mm, 1.5mm, 0.8mm, 0.4mm etc., and concrete diameter can control according to actual needs.
According to specific embodiment of the invention scheme, preferably, above-mentioned is solid core welding wire or cable formula welding wire without copper plating soldering wire.
Provided by the present invention above-mentioned can be that welding wire preparation method conveniently carries out the techniques such as deoxidation black shell, extruding and drawing to the steel ingot that above-mentioned atmospheric corrosion resistance ferrous alloy is made and prepares without copper plating soldering wire.Preferably, above-mentionedly to prepare according to following processing step without copper plating soldering wire:
-unwrapping wire-mechanical deoxidation black shell skin-atmospheric pressure washing (material surface can be avoided to redden because friction temperature is high by washing)-room temperature oven dry-mould wire drawing tube reducing is tested (according to product diametric requirements to wire rod, carry out extruding and drawing dialling with mould, obtain the welding wire of required size) inspection-layer such as-take-up-platinum look around-packaging-warehouse-in, obtain of the present invention without copper plating soldering wire.
Above-mentioned wire rod can prepare so that prepare welding wire by following steps: the online thermal-flame of steel ingot soaking-breaking down-bloom clear up-cuts greatly-tandem rolling-hot rolling-finish rolling-flying shear-cooling-ball blast, magnetic flaw detector-abrasion wheel grinding-obtain wire rod-warehouse-in, the diameter of the wire rod of welding wire of general preparation is 8mm, 6mm, 5mm, can control according to actual needs.
Under heat in the operation of rolling-mechanical property effect, the trace alloying element contained in iron-based, particularly the atmospheric corrosion resistance element such as P, Cu, Si, Al can carry out secondary distribution, be enriched in surperficial anti-atmospheric corrosion layer, block entering of oxygen element, can prevent surface from room temperature oxide etch occurring.But because the temperature in hot continuous rolling process is very high, still can not at high temperature prevent wire rod to be oxidized, so the surface color of wire rod be heavy red or black.
At the oxidation black shell for removing wire rod, extruding and drawing in group technique of carrying out, the raw thermogenetic energy of high-speed friction can make the solid solution alloy element in atmospheric corrosion resistance ferrous alloy carry out secondary distribution further, impel formation and the enrichment of the surperficial weather-resistant layer of steel, also form the weather-resistant layer of platinum look simultaneously.
Welding wire provided by the present invention can not produce atmospheric corrosion in not copper-plated situation in three months to six months, and the copper plating soldering wire of its welding performance and existing ad eundem is suitable, thus, existing copper plating soldering wire can be substituted, unforeseeable economic and social benefit will be produced.
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present invention, object and beneficial effect, existing following detailed description is carried out to technical scheme of the present invention, but can not be interpreted as to of the present invention can the restriction of practical range.
Embodiment 1
Present embodiments provide a kind of atmospheric corrosion resistance ferrous alloy, it becomes to be grouped into as shown in table 4.
This atmospheric corrosion resistance ferrous alloy is prepared by following processing step:
In smelting process, T.D.S molten iron pre-desulfurization-80t pushes up low top-bottom blowing stove smelting-RH Fruit storage-RV92 ingot shape bet molten iron-online thermal-flame of steel ingot soaking-breaking down-bloom and clear up-cuts greatly-tandem rolling-hot rolling-finish rolling-flying shear-cooling-ball blast-magnetic flaw detector flaw detection-abrasion wheel grinding-obtain wire rod-warehouse-in, and the diameter of the wire rod obtained is 8mm, 6mm, 5mm etc.
The macroscopic defects such as the wire rod prepared by the way does not have crackle, folds, scabs, the ears or side handles of a utensil.
The present embodiment additionally provides a kind of without copper plating soldering wire, and it is that the wire rod adopting above-mentioned atmospheric corrosion resistance ferrous alloy to make is prepared by following steps:
-unwrapping wire-mechanical deoxidation black shell skin-atmospheric pressure washing (material surface can be avoided to redden because friction temperature is high by washing)-room temperature oven dry-mould wire drawing tube reducing is tested (according to product diametric requirements to wire rod, carry out extruding and draw with mould and dial) inspection-layer such as-take-up-platinum look around-pack-put in storage, obtain the present embodiment without copper plating soldering wire.
This is without copper plating soldering wire surface presentation platinum look, can be used as real core gas shield welding wire and welding wire for submerged-arc welding use, also this can be carried out further the processing of cable formula technique without copper plating soldering wire, can make cable formula welding wire, use as cable formula gas shield welding wire and welding wire for submerged-arc welding.
Atmospheric corrosion resistance is tested:
By common straightcarbon steel, copper plating soldering wire, being placed in atmospheric environment without copper plating soldering wire and carrying out atmospheric corrosion resistance test of embodiment 1, testing location is on Nan An Jiangyin, the Changjiang river, Jiangsu and Zhoushan Of Zhejiang Province seashore, and the testing time is in season in late autumn.
The welding wire that common straightcarbon steel is made is white after processing.The phosphorus content of common straightcarbon steel is generally more than 0.30%, and impurity is more, and component element distribution is also uneven, and weather-resistant performance is inevitable very poor, very easily generates brown iron rust and develops in depth.Place after 1 month in the atmospheric environment of Zhoushan, be namely partially formed the atmospheric corrosion layer of black on surface, welding wire has obvious brown iron rust corrosion region, and prove that it does not have copper facing, phosphorus content is also high, is easy to oxygen uptake, weather-resistant poor performance.
Copper plating soldering wire plates the aeneous copper of one deck at welding wire surface, but it neither the anti-rust corrosion of Chinese People's Anti-Japanese Military and Political College's gas forever.After copper plating soldering wire sample is deposited about 1 year in an atmosphere, getting rusty appears in welding wire surface some areas, and surface there will be scales district.
After solid core welding wire prepared by embodiment 1 and cable formula welding wire are deposited 6 months in the moistening air in Jiangyin, not there is corrosion phenomenon in surface, remain platinum look, even if this illustrates that platinum look welding wire prepared by embodiment 1 does not carry out copper facing and can have weather-resistant characteristic yet, meet the requirement of welding wire weather-resistant standard (GB/T11377-89 the general rule of corrosion test " under metal and other inorganic cover layer conditions of storage ").
Welding wire welding performance test:
The solid core welding wire of the embodiment 1 stored after 6 months in room atmosphere is adopted to carry out welding wire for submerged-arc welding welding procedure test, to test its welding performance.Wherein, welding condition is as shown in table 1.
As can be seen from Table 1, the welding good conductivity of platinum look coppering-free solid solder wire, electric current, voltage, the fast technique of weldering and arc stability, cable formula welding wire speed of welding is fast, interlayer temperature fluctuation is reasonable, and this illustrates that the platinum look that embodiment 1 provides is the same with the welding technological properties of copper plating soldering wire without copper plating soldering wire.
The welding condition of the coppering-free solid solder wire of table 1 embodiment 1
The diameter adopting embodiment 1 to prepare by Full-automatic gas protection welding machine is that the coppering-free solid solder wire of 2mm welds, and speed of welding is that 500mm/ divides, and welding current is 350A, and weldingvoltage is 30V.Welding effect is as follows: the good conductivity of the not copper plating soldering wire of platinum look, and the same with copper plating soldering wire, electric current is large, electric arc is steady, welding energy is large, speed of welding is fast, molten bath is wide deeply, surface is bright in vain.Molten slag setting rate is fast, after arc stability without slag, lack without flying dust, splashing; Molten slag disputes to be emitted through to cross.Further, this welding wire is without the need to copper facing, and cost compare is low.
Comparing of the weld seam that the chemical composition of the weld seam that the solid core welding wire of embodiment 1 is formed, mechanical property are formed with copper plating soldering wire:
Copper plating soldering wire and platinum look are without copper plating soldering wire comparing in " CCS marine product type designation certificate " middle performance, adopt common copper plating soldering wire and of the present inventionly without copper plating soldering wire, 16MnR low-alloy ship plate to be welded, and various mechanical property is tested and contrasted.Table 2 is chemical component tables of 16MnR low-alloy ship plate mother metal, and table 3 is the chemical component table of copper plating soldering wire, and table 4 is the chemical component table without copper plating soldering wire of the present invention.Table 5 is that the summer of copper plating soldering wire is than v-notch ballistic work mechanical experimental results; Table 6 is that the summer of platinum look without copper plating soldering wire is than v-notch ballistic work mechanical experimental results.Above-mentioned test all can be carried out according to the conventional method of this area and the universal standard.
Table 216MnR low-alloy ship plate mother metal chemical composition (by weight percentage, surplus is Fe)
| Chemical composition | Content, % |
| C | ≤0.18 |
| Mn | 1.60 |
| Si | ≤0.50 |
| Cr | ≤0.20 |
| Ni | ≤0.40 |
| Mo | ≤0.08 |
| V | 0.05 |
| Cu | ≤0.35 |
| S | ≤0.03 |
| P | ≤0.035 |
| Nb | 0.02 |
| Al (acid-soluble) | ≥0.01 |
| Ni | ≤0.40 |
Table 316MnR low-alloy hull steel is with copper plating soldering wire chemical composition (by weight percentage, surplus is Fe)
| Chemical composition | Content, % |
| C | ≤0.18 |
| Mn | 1.60 |
| Si | ≤0.07 |
| Cr | ≤0.20 |
| Ni | ≤0.30 |
| Mo | / |
| Cu | ≤0.20 |
| S | ≤0.035 |
| P | ≤0.035 |
Table 4 platinum look is without copper plating soldering wire chemical composition (by weight percentage, surplus is Fe)
| Chemical composition | Content, % |
| C | 0.10 |
| Mn | 1.47 |
| Si | 0.15 |
| Cr | 0.06 |
| Ni | 0.01 |
| Mo | 0.33 |
| Cu | 0.21 |
| S | 0.007 |
| P | 0.007 |
| Al | 0.043 |
| Ti | 0.054 |
| B | 0.0061 |
| O | 0.00144 |
| N | 0.00331 |
The table 5 copper plating soldering wire summer is than v-notch ballistic work mechanical property
Table 6 platinum look without the copper plating soldering wire summer than v-notch ballistic work mechanical property
The content of table 3-table 6 is compared and can find out: embodiment 1 consistent with welding technological properties, impact flexibility, mechanical property and the welding performance that copper plating soldering wire embodies when welding 16MnR low-alloy ship plate without copper plating soldering wire, prove the alternative copper plating soldering wire of not copper-plated platinum look welding wire.
Can be proved by foregoing, provided by the present invention not carrying out keeping good atmospheric corrosion resistance in copper-plated situation, can also have good welding performance without copper plating soldering wire simultaneously., because this welding wire does not need to carry out copper facing, can greatly save production cost, for enterprise brings unexpected, considerable economic and social benefit meanwhile.
Claims (8)
1. an atmospheric corrosion resistance ferrous alloy, by weight percentage, this atmospheric corrosion resistance ferrous alloy comprises following one-tenth and is grouped into: C0.01-0.10%, Mn1.25-1.55%, Mo0.25-0.34%, Ti0.050-0.075%, B0.0029-0.0070%, Cu0.20-0.45%, Si0.01-0.45%, P0.005-0.015%, Al0.030-0.045%, Ni0.01-0.05%, and inevitable impurity.
2. atmospheric corrosion resistance ferrous alloy according to claim 1, wherein, by weight percentage, this atmospheric corrosion resistance ferrous alloy also comprises Cr0.05-0.10%.
3. atmospheric corrosion resistance ferrous alloy according to claim 1 and 2, wherein, described inevitable impurity comprises: S0.001-0.010%, As+Sb+Sn≤0.005%, O0.0010-0.0050%, N0.002-0.005%.
4. atmospheric corrosion resistance ferrous alloy according to claim 1, wherein, the composition of this atmospheric corrosion resistance ferrous alloy consists of: C0.01-0.10%, Mn1.25-1.55%, Mo0.25-0.34%, Ti0.050-0.075%, B0.0029-0.0070%, Cu0.20-0.45%, Si0.01-0.45%, P0.005-0.015%, Al0.030-0.045%, Ni0.01-0.05%, and inevitable impurity, surplus is Fe.
5. atmospheric corrosion resistance ferrous alloy according to claim 2, wherein, the composition of this atmospheric corrosion resistance ferrous alloy consists of: C0.01-0.10%, Mn1.25-1.55%, Mo0.25-0.34%, Ti0.050-0.075%, B0.0029-0.0070%, Cu0.20-0.45%, Si0.01-0.45%, P0.005-0.015%, Al0.030-0.045%, Ni0.01-0.05%, Cr0.05-0.10%, and inevitable impurity, surplus is Fe.
6., without a copper plating soldering wire, it is made up of the atmospheric corrosion resistance ferrous alloy described in any one of claim 1-5.
7. according to claim 6 without copper plating soldering wire, wherein, this diameter without copper plating soldering wire is 0.4-6mm.
8. according to claim 6 or 7 without copper plating soldering wire, wherein, this is solid core welding wire or cable formula welding wire without copper plating soldering wire.
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| CN107587065B (en) * | 2016-07-08 | 2019-04-02 | 攀钢集团攀枝花钢铁研究院有限公司 | One kind atmosphere corrosion resistance structural steel molten steel of niobium containing chromium and atmosphere corrosion resistance structural steel and its production method |
| CN107097018B (en) * | 2017-05-03 | 2020-07-10 | 江苏引力焊业工程技术研究有限公司 | Copper-plating-free H10Mn2 submerged arc welding wire |
| CN106984916B (en) * | 2017-05-03 | 2020-11-06 | 江苏引力焊业工程技术研究有限公司 | ER50-G does not have copper facing welding wire |
| JP7323781B2 (en) * | 2019-07-04 | 2023-08-09 | 日本製鉄株式会社 | Multi-electrode submerged arc welding method |
| CN110788521A (en) * | 2019-11-21 | 2020-02-14 | 南京引力工业焊接技术研究院有限公司 | YL60-G copper-plating-free welding wire for welding X80 pipeline steel |
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