CN104014948A - Atmosphere-corrosion-resistant iron-based alloy and welding wire without copper plating - Google Patents

Atmosphere-corrosion-resistant iron-based alloy and welding wire without copper plating Download PDF

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Publication number
CN104014948A
CN104014948A CN201410053171.0A CN201410053171A CN104014948A CN 104014948 A CN104014948 A CN 104014948A CN 201410053171 A CN201410053171 A CN 201410053171A CN 104014948 A CN104014948 A CN 104014948A
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wire
copper plating
welding
welding wire
corrosion resistance
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CN104014948B (en
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许祖泽
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XU WEISONG
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XU WEISONG
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/24Selection of soldering or welding materials proper
    • B23K35/30Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
    • B23K35/3053Fe as the principal constituent
    • B23K35/3073Fe as the principal constituent with Mn as next major constituent
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/40Making wire or rods for soldering or welding

Abstract

The invention relates to atmosphere-corrosion-resistant iron-based alloy and a welding wire without copper plating. The atmosphere-corrosion-resistant iron-based alloy comprises, by weight, 0.01%-0.10% of C, 1.25%-1.55% of Mn, 0.25%-0.34% of Mo, 0.050%-0.075% of Ti, 0.0029%-0.0070% of B, 0.20%-0.45% of Cu, 0.01%-0.45% of Si, 0.005%-0.015% of P, 0.030%-0.045% of Al, 0.01%-0.05% of N and unavoidable impurities. The welding wire without copper plating is made of the atmosphere-corrosion-resistant iron-based alloy. According to the welding wire, on the circumstance that copper plating is omitted, the welding wire is not corroded by the atmosphere in three months to six months, the welding performance of the welding wire is identical to that of an existing copper-plated welding wire, and therefore the existing copper-plated welding wire can be replaced and unexpected economic effects and social effects can be achieved.

Description

A kind of atmospheric corrosion resistance ferrous alloy and without copper plating soldering wire
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 fields such as mechanical manufacturing engineering construction, the particularly energy, christmas platform, pipe-line, shipbuilding, railway, traffic, bridge, skyscraper, heavy-duty machinery.
China starts promoting a large amount of gas protecting welding wire, welding wire for submerged-arc welding and flux-cored wires that use welding material from the eighties always, and has formulated national standard.
Atmospheric corrosion in order to prevent under wet season condition that welding wire is produced, when transporting, storing, and the welding wire after surface corrosion produces weld porosity, slag inclusion, defects i.e.cracks can make to weld time, most of welding wires all plate layer of copper at welding wire surface, thereby obtain copper plating soldering wire, to use in market sale processing.
In long-term use, find, that the copper plating soldering wire that adopts electroless copper or electrolytic copper plating to make all can form the material of the serious environment pollutions such as copper liquid and waste gas, and human body is had to great harm, formed waste liquid is further contaminated environment also, 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, in the process of when welding wire feed, due to and wire feed rolls, wire guiding nipple between friction, copper scale can come off from welding wire surface, residual copper scale in welding wire guiding nipple, when wire feed system is not often cleared up, these copper scales can be piled up and cause wire feed extremely even to be stopped work.
Therefore, copper plate and surperficial adhesive force are the primary factor that determines copper plating soldering wire quality, copper facing and arrived the decision stage without the commercial viability competition of copper plating soldering wire.
Infringement for fear of copper plating soldering wire to environment and human body, last century end just have both at home and abroad many wldings company in research and development and supply 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, can cause other difficulty and new problem 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, the alloying element that this ferrous alloy contains lower content, makes welding wire and can make welding wire have good atmospheric corrosion resistance afterwards.
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%, the preferred 0.01-0.15% of Si0.01-0.45%(), 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 obtain by smelting.Aspect 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 and makes a bet.
It is a kind of without copper plating soldering wire that the present invention also provides, and it is to be made by 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 be controlled 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 without copper plating soldering wire, can be that the steel ingot above-mentioned atmospheric corrosion resistance ferrous alloy made according to conventional welding wire preparation method carries out the techniques such as deoxidation black shell, extruding and drawing and prepares.Preferably, above-mentionedly without copper plating soldering wire, according to following processing step, prepare:
Test-unwrapping wire of wire rod-mechanical deoxidation black shell skin-atmospheric pressure is washed to (temperature is high to redden because rub can to avoid material surface by washing)-room temperature oven dry-mould wire drawing tube reducing (according to the requirement of product diameter, with mould, push and draw and dial, obtaining the welding wire of required size) check-layer such as-take-up-platinum look is around-packing-warehouse-in, obtains of the present invention without copper plating soldering wire.
Above-mentioned wire rod can prepare by following steps so that prepare welding wire: online clear up-cut greatly-tandem rolling-hot rolling-finish rolling-flying shear of the thermal-flame-cooling-ball blast of steel ingot soaking-breaking down-bloom, 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-mechanical property effect in the operation of rolling, the trace alloying element containing 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, entering of blocking-up oxygen element, can prevent that surface from oxide etch at room temperature occurring.But because the temperature in hot continuous rolling process is very high, still can not at high temperature prevent wire rod oxidation, so the surface color of wire rod is heavy redness or black.
For remove wire rod oxidation black shell, push and draw and dial in the 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 further carry out secondary distribution, impel formation and the enrichment of the surperficial weather-resistant layer of steel, also formed 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.
The specific embodiment
For technical characterictic of the present invention, object and beneficial effect being had more clearly, understand, existing technical scheme of the present invention is carried out to following detailed description, but can not be interpreted as restriction that can practical range of the present invention.
Embodiment 1
The present embodiment provides a kind of atmospheric corrosion resistance ferrous alloy, and its one-tenth is 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 make a bet online clear up-the cut greatly-tandem rolling-hot rolling-finish rolling-flying shear of thermal-flame of molten iron-steel ingot soaking-breaking down-bloom-cooling-ball blast-magnetic flaw detector flaw detection-abrasion wheel grinding-obtain wire rod-warehouse-in of low top-bottom blowing stove smelting-RH Fruit storage-RV92 ingot shape, and the diameter of resulting wire rod is 8mm, 6mm, 5mm etc.
By the way the wire rod of preparation there is no crackle, fold, scab, the macroscopic defect such as the ears or side handles of a utensil.
It is a kind of without copper plating soldering wire that the present embodiment also provides, and it is that the wire rod that adopts above-mentioned atmospheric corrosion resistance ferrous alloy to make is prepared by following steps:
Test-unwrapping wire of wire rod-mechanical deoxidation black shell skin-atmospheric pressure is washed to (temperature is high to redden because rub can to avoid material surface by washing)-room temperature oven dry-mould wire drawing tube reducing (according to the requirement of product diameter, with mould, push and draw and dial) check-layer such as-take-up-platinum look around-pack-put in storage, obtain the present embodiment without copper plating soldering wire.
This presents platinum look without copper plating soldering wire surface, can be used as real core gas shield welding wire and welding wire for submerged-arc welding and uses, and also this further can be carried out to the processing of cable formula technique without copper plating soldering wire, can make cable formula welding wire, as cable formula gas shield welding wire and welding wire for submerged-arc welding, uses.
Atmospheric corrosion resistance test:
By being placed in atmospheric environment without copper plating soldering wire and carrying out atmospheric corrosion resistance test of common straightcarbon steel, copper plating soldering wire, 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 in processing afterwards.The phosphorus content of common straightcarbon steel is generally more than 0.30%, and impurity is more, and composition element distributes also inhomogeneous, and weather-resistant performance is inevitable very poor, very easily generates brown iron rust and develops in depth.In the atmospheric environment of Zhoushan, place after 1 month, at surface local, form the atmospheric corrosion layer of black, welding wire has obvious brown iron rust corrosion region, proves that it does not have copper facing, and phosphorus content is also high, is easy to oxygen uptake, weather-resistant poor performance.
Copper plating soldering wire is to plate the aeneous copper of one deck at welding wire surface, but its 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 atmosphere, getting rusty appears in welding wire surface some areas, and surface there will be scales district.
After the solid core welding wire of embodiment 1 preparation and cable formula welding wire are deposited 6 months in the moistening atmosphere in Jiangyin, there is not corrosion phenomenon in surface, remain platinum look, even if the platinum look welding wire of this explanation embodiment 1 preparation does not carry out copper facing and can have weather-resistant characteristic yet, meet the requirement of welding wire weather-resistant standard (the general rule > > of corrosion test under GB/T11377-89 < < metal and other inorganic cover layer conditions of storage).
Welding wire welding performance test:
The solid core welding wire that employing stores the embodiment 1 after 6 months in room atmosphere carries 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, weldering speed technique and arc stability, cable formula welding wire speed of welding is fast, interlayer temperature fluctuation is reasonable, and the platinum look that this explanation 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
By Full-automatic gas, protect welding machine to adopt the coppering-free solid solder wire that the diameter of embodiment 1 preparation is 2mm to weld, 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, 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, without flying dust, splash few; Molten slag is to dispute to penetrate transition.And this welding wire is without copper facing, cost compare is low.
The comparison of the chemical composition of the formed weld seam of solid core welding wire of embodiment 1, mechanical property and the formed weld seam of copper plating soldering wire:
Copper plating soldering wire and platinum look be the comparison at " CCS marine product type designation certificate " performance without copper plating soldering wire, adopt common copper plating soldering wire and of the present inventionly without copper plating soldering wire, 16MnR low-alloy ship plate welded, and various mechanical properties are tested and contrasted.Table 2 is chemical component tables of 16MnR low-alloy ship plate mother metal, the chemical component table that table 3 is 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 summer of copper plating soldering wire is than v-notch ballistic work mechanical experimental results; Table 6 is platinum look without summer of copper plating soldering wire 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 is molten) ≥0.01
Ni ≤0.40
Table 316MnR low-alloy copper plating soldering wire chemical composition (by weight percentage, surplus is Fe) for hull steel
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 be found out: embodiment's 1 is consistent with welding technological properties, impact flexibility, mechanical property and welding performance that copper plating soldering wire embodies when welding 16MnR low-alloy ship plate without copper plating soldering wire, proves the alternative copper plating soldering wire of not copper-plated platinum look welding wire.
By foregoing, can prove, provided by the present invention can, not carrying out keeping good atmospheric corrosion resistance in copper-plated situation, 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 to be made by the atmospheric corrosion resistance ferrous alloy described in claim 1-5 any one.
7. according to claim 6 without copper plating soldering wire, wherein, this diameter without copper plating soldering wire is 0.4-6mm.
According to described in 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.
CN201410053171.0A 2013-12-15 2014-02-17 A kind of atmospheric corrosion resistance ferrous alloy and without copper plating soldering wire Active CN104014948B (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN106984916A (en) * 2017-05-03 2017-07-28 苏州引力焊业科技有限公司 A kind of ER50 G are without copper plating soldering wire
CN107097018A (en) * 2017-05-03 2017-08-29 苏州引力焊业科技有限公司 One kind is without copper facing H10Mn2 submerged-arc welding wires
CN107587065A (en) * 2016-07-08 2018-01-16 攀钢集团攀枝花钢铁研究院有限公司 A kind of atmosphere corrosion resistance structural steel molten steel of niobium containing chromium and atmosphere corrosion resistance structural steel and its production 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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CN102794579A (en) * 2012-08-25 2012-11-28 钢铁研究总院 Anti-corrosion welding rod for constructing cargo-oil tanks of tank ships
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JPH04172179A (en) * 1990-11-07 1992-06-19 Kawasaki Steel Corp Method for inhibiting local corrosion in welded zone
JPH09168889A (en) * 1995-12-21 1997-06-30 Kobe Steel Ltd Gas shielded arc welding wire
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107587065A (en) * 2016-07-08 2018-01-16 攀钢集团攀枝花钢铁研究院有限公司 A kind of atmosphere corrosion resistance structural steel molten steel of niobium containing chromium and atmosphere corrosion resistance structural steel and its production method
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CN106984916A (en) * 2017-05-03 2017-07-28 苏州引力焊业科技有限公司 A kind of ER50 G are without copper plating soldering wire
CN107097018A (en) * 2017-05-03 2017-08-29 苏州引力焊业科技有限公司 One kind is without copper facing H10Mn2 submerged-arc welding wires
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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