CN104526182B - Boats and ships low-alloy steel automatic welding wire - Google Patents
Boats and ships low-alloy steel automatic welding wire Download PDFInfo
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- CN104526182B CN104526182B CN201510000088.1A CN201510000088A CN104526182B CN 104526182 B CN104526182 B CN 104526182B CN 201510000088 A CN201510000088 A CN 201510000088A CN 104526182 B CN104526182 B CN 104526182B
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- high pressure
- drawn
- welding wire
- pressure water
- soap lye
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Classifications
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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
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/58—Ferrous alloys, e.g. steel alloys containing chromium with nickel with more than 1.5% by weight of manganese
Abstract
The present invention relates to one do not preheat, not copper facing boats and ships low-alloy steel automatic welding wire, it is characterised in that: the chemical analysis of this welding wire includes: C 0.02-0.1%, Mn 2-4%, Ni 2-4%, Mo 0.5-1%, Si 0.5-0.8%, Cu 0-0.5%, Cr 0-1.2%, V 0-0.12%, Ti 0-0.05%；Production technology includes: vacuum melting, forging, steel rolling, gren rod, mechanical derusting, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, borax treatment, soap lye saponification, dries, first time cold-drawn, recrystallization annealing, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, borax treatment, soap lye saponification, dry, second time cold-drawn, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, soap lye saponification, brilliant polish drawing, is coated with aqueous rust preventive.
Description
The application is divisional application, the application number of original application: 2012104987530, denomination of invention: a kind of do not preheat, the production technology of not copper facing boats and ships low-alloy steel automatic welding wire, the applying date: 2012-11-30.
Technical field
The present invention relates to the preparation field of automatic welding wire, do not preheat particularly to one, not copper facing boats and ships low-alloy steel automatic welding wire and production technology thereof.
Background technology
Low-alloy high-strength steel has good weldability, excellent formability and relatively low manufacturing cost, is therefore widely used in the fields such as pressure vessel, vehicle, bridge, building, engineering machinery, mining machinery, textile machine, ocean structure, boats and ships, electric power, petrochemical industry, war products and Aero-Space.Along with the raising of steel alloying element content, intensity rank and Welding Structure constraint (restraint) degree, its tendency of hardenability significantly increases, and welding cold cracking has become one of encountered subject matter of low-alloy high-strength steel welding.
Production generally adopts weld preheating, post weld heat treatment method to avoid weld crack to produce, while bringing the series of problems such as the increase of complex manufacturing, production cost, production efficiency reduction and working environment deterioration, also can increase welding heat affected zone softening tendency.
Modern Ships structure adopts high-intensity high-tenacity hull structural steel in a large number, and traditional high intensity for ship steel belongs to quenched and tempered steel, and this kind of steel is typically necessary preheating when welding and prevents the generation of cold crack.There is provided a kind of do not preheat, not copper facing boats and ships low-alloy automatic welding wire and production technology are the technical barrier of this area.
Summary of the invention
The technical problem to be solved be to provide one do not preheat, not copper facing boats and ships low-alloy high-strength ductile steel automatic welding wire and production technology thereof.
For solving above-mentioned technical problem, the invention provides one do not preheat, not copper facing boats and ships low-alloy steel automatic welding wire, its chemical analysis includes: C0.02-0.1%, Mn2-4%, Ni2-4%, Mo0.5-1%, Si0.5-0.8%, Cu0-0.5%, Cr0-1.2%, V0-0.12%, Ti0-0.05%；This gage of wire drawing is Ф 4.0mm to Ф 1.0mm.
Above-mentioned do not preheat, the production technology of not copper facing boats and ships low-alloy steel automatic welding wire, in turn include the following steps:
Vacuum melting, forging, steel rolling, gren rod, mechanical derusting, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, borax treatment, soap lye saponification, dries, first time cold-drawn, recrystallization annealing, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, borax treatment, soap lye saponification, dry, second time cold-drawn, chlorohydric acid pickling, neutral washing, high pressure water cleaning-, alkali neutralizes, soap lye saponification, brilliant polish drawing, is coated with aqueous rust preventive.
In described twice chlorohydric acid pickling step, being put into by steel wire in the hydrochloric acid solution of 50%, take out after soaking 20-30 minute under room temperature, during taking-up, Steel Wire Surface must not have hole, controls FeCl in immersion process2Content≤100g/l.
In described twice alkali neutralization procedure, alkaline solution is NaOH, Na2CO3, NaHCO3Mixed solution, wherein, NaOH content is 20-30g/l, Na2CO3 content is 30-40g/l, NaHCO3Content is 25-35g/l, and in alkali N-process, the pH value controlling solution is 8-11, neutralizes 2-5 minute time.
In described twice borax treatment step, in boration solution, the content of Borax is 150-250g/l, when steel wire boronising processes, controls temperature 75-90 DEG C, takes out after processing 5-10 minute, and during taking-up, Steel Wire Surface is uniform black gray expandable.
In described three soap lye saponification step, in soap lye, the content of soap flakes is 200-300g/l, during saponification, controls pH value more than 8, temperature 80-90 DEG C.
Described first time cold-drawn step is rough pulling out, it is Ф 5.4mm by steel wire diameter drawing, thick drawing process selects use DYH-G4, DYH-G72 Dry-powder Lubricant, this lubricant has good thermostability, noncoking, good lubricating film can be formed in the Steel Wire Surface of first time drawing, ensure the excellent surface quality of steel wire, and after annealing, Steel Wire Surface is clean, bright and clean, be formed without collection carbon, convenient cleaning.
In described recrystallization annealing step, by steel wire heating to 690 ± 10 DEG C, slowly cooling to less than 150 DEG C after keeping 1.5 hours, cool time is 16-23 hour.
Described second time cold-drawn step is middle drawing, it is Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm by the steel wire drawing of Ф 5.4mm, these seven kinds of diameter wire correspondence respectively prepares the finished product of Ф 4.0mm, Ф 3.2mm, Ф 2.5mm, Ф 2.0mm, Ф 1.6mm, Ф 1.2mm, Ф 1.0mm, middle drawing process selects DYH-G10, DYH-G82 Dry-powder Lubricant, this lubricant has good greasy property, after drawing, Steel Wire Surface is smooth, Steel Wire Surface lubricating film is soluble in water, it is simple to the production of illumi yarn.
In described brilliant polish drawing, by Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm steel wire be drawn to the finished product of Ф 4.0mm, Ф 3.2mm, Ф 2.5mm, Ф 2.0mm, Ф 1.6mm, Ф 1.2mm, Ф 1.0mm respectively, drawing selects DYH-2, DYH-5 type lubricant, it is strong that this lubricant has adhesive force, high lubricating effect, anti-extrusion, antioxidation, use rear surface is uniform, smooth, fineness high.
In described painting aqueous rust preventive step, rust inhibiting solution is the mixed solution of sodium nitrite, G & W, and wherein, sodium nitrite is 5-12g/l, glycerol 10-12g/l, and surplus is water, and aqueous rust preventive can pack warehouse-in after being painted with.
The technique effect of the present invention: (1) present invention does not preheat, not copper facing boats and ships low-alloy automatic welding wire can not preheat just solderable when high-strength and high-toughness steel welds, see embodiment 5, this welding wire welding performance data of several high-strength and high-toughness steels in not preheating situation illustrate that this welding wire can not preheat and weld, and welding effect is good, preheated weld can not avoid the generation of cold crack in the welding of Modern Ships structure, and production technology can be simplified in welding process, reduce production cost, accelerate production efficiency, and this automatic welding wire only need to be coated with aqueous rust preventive when storing, need not be preserved by copper facing, reduce production cost equally, and cupric impurity will not be mixed into and affect welding effect；(2) welding material strict chemical analysis controlling welding material in dispensing, smelting process, by process optimization, adopts furnace outer refining technology, effectively reduces the impurity contents such as S, P, O, N, it is ensured that the cleanliness factor of welding material.
Detailed description of the invention
Embodiment 1
Not the preheating of the present embodiment, not copper facing boats and ships low-alloy steel automatic welding wire, its chemical analysis includes: C0.02%, Mn2%, Ni4%, Mo0.5%, Si0.5%, Cu0.2%, Cr0.5%, V0.1%, Ti0.01%；This gage of wire drawing is Ф 4.0mm to Ф 1.0mm.
Embodiment 2
Not the preheating of the present embodiment, not copper facing boats and ships low-alloy steel automatic welding wire, its chemical analysis includes: C0.05%, Mn3%, Ni3%, Mo0.7%, Si0.6%, Cu0.3%, Cr0.6%, V0.06%, Ti0.03%；This gage of wire drawing is Ф 4.0mm to Ф 1.0mm
Embodiment 3
Not the preheating of the present embodiment, not copper facing boats and ships low-alloy steel automatic welding wire, its chemical analysis includes: C0.1%, Mn4%, Ni2%, Mo1%, Si0.8%, Cu0.5%, Cr1.2%, V0.12%, Ti0.05%；This gage of wire drawing is Ф 4.0mm to Ф 1.0mm.
Embodiment 4
Not preheating described in above-described embodiment 1-3, not copper facing boats and ships low-alloy steel automatic welding wire production technology, in turn include the following steps:
Vacuum melting, forging, steel rolling, gren rod, mechanical derusting, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, borax treatment, soap lye saponification, dries, first time cold-drawn, recrystallization annealing, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, borax treatment, soap lye saponification, dry, second time cold-drawn, chlorohydric acid pickling, neutral washing, high pressure water cleaning-, alkali neutralizes, soap lye saponification, brilliant polish drawing, is coated with aqueous rust preventive.
1, chlorohydric acid pickling: put into by steel wire in the hydrochloric acid solution of 50%, takes out after soaking 20-30 minute under room temperature, and during taking-up, Steel Wire Surface must not have hole, controls FeCl in immersion process2Content≤100g/l.In Table 1.
Table 1:
| Hydrochloric acid | Temperature | Time | Surface | FeCl2 |
| 50% | Room temperature | 20-30 divides | Must not there is hole | ≤100 g/l |
2, alkali neutralizes: alkaline solution is NaOH, Na2CO3, NaHCO3Mixed solution, wherein, NaOH content is 20-30g/l, Na2CO3 content is 30-40g/l, NaHCO3Content is 25-35g/l, and in alkali N-process, the pH value controlling solution is 8-11, neutralizes 2-5 minute time.In Table 2.
Table 2
| NaOH | Na2CO3 | NaHCO3 | PH value | Time |
| 20-30 g/l | 30-40 g/l | 25-35 g/l | 8-11 | 2-5 minute |
3, borax treatment: in boration solution, the content of Borax is 150-250g/l, when steel wire boronising processes, controls temperature 75-90 DEG C, takes out after processing 5-10 minute, and during taking-up, Steel Wire Surface is uniform black gray expandable.In Table 3.
Table 3
| Borax | Temperature | Time | Surface |
| 150-250 g/l | 75-90℃ | 5-10 divides | Black gray expandable is uniform |
4, soap lye saponification: in soap lye, the content of soap flakes is 200-300g/l, during saponification, controls pH value more than 8, temperature 80-90 DEG C.In Table 4.
Table 4
| Soap flakes | Temperature | PH value |
| 200-300 g/l | 80-90℃ | > 8 |
5, cold-drawing technology:
(1) first time cold-drawn: first time cold-drawn is rough pulling out, it is Ф 5.4mm by steel wire diameter drawing, thick drawing process selects use DYH-G4, DYH-G72 Dry-powder Lubricant, this lubricant has good thermostability, noncoking, good lubricating film can be formed in the Steel Wire Surface of first time drawing, ensure the excellent surface quality of steel wire, and after annealing, Steel Wire Surface is clean, bright and clean, be formed without collection carbon, convenient cleaning.
(2) in described recrystallization annealing step, by steel wire heating to 690 ± 10 DEG C, slowly cooling to less than 150 DEG C after keeping 1.5 hours, cool time is 16-23 hour.
(3) second time cold-drawn: second time cold-drawn is middle drawing, it is Ф 4.15mm by the steel wire drawing of Ф 5.4mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm, these seven kinds of diameter wire are correspondence preparation Ф 4.0mm respectively, Ф 3.2mm, Ф 2.5mm, Ф 2.0mm, Ф 1.6mm, Ф 1.2mm, the finished product of Ф 1.0mm, middle drawing process selects DYH-G10, DYH-G82 Dry-powder Lubricant, this lubricant has good greasy property, after drawing, Steel Wire Surface is smooth, Steel Wire Surface lubricating film is soluble in water, it is easy to the production of illumi yarn.
(4) brilliant polish drawing: by Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm steel wire be drawn to the finished product of Ф 4.0mm, Ф 3.2mm, Ф 2.5mm, Ф 2.0mm, Ф 1.6mm, Ф 1.2mm, Ф 1.0mm respectively, drawing selects DYH-2, DYH-5 type lubricant, it is strong that this lubricant has adhesive force, high lubricating effect, anti-extrusion, antioxidation, use rear surface is uniform, smooth, fineness high.
6, it is coated with aqueous rust preventive: rust inhibiting solution is the mixed solution of sodium nitrite, G & W, and wherein, sodium nitrite is 5-12g/l, glycerol 10-12g/l, and surplus is water, and aqueous rust preventive can pack warehouse-in after being painted with.
Embodiment 5
Not welding wire described in above-described embodiment, when preheated weld yield strength is not 790MPa, 890MPa, 960MPa, 1100MPa high-strength steel, deposited metal performance indications such as table 5.
Table 5
Wherein Rm is tensile strength, Rp0.2For yield strength, A is elongation after fracture, Akv-50℃For-50 DEG C of impact absorbing energy, Akv-40℃For-40 DEG C of impact absorbing energy.
Claims (1)
1. one kind do not preheat, the production technology of not copper facing boats and ships low-alloy steel automatic welding wire, it is characterised in that: the chemical analysis of this welding wire includes: C0.02-0.1%, Mn2-4%, Ni2-4%, Mo0.5-1%, Si0.5-0.8%, Cu0-0.5%, Cr0-1.2%, V0-0.12%, Ti0-0.05%；This gage of wire drawing is Ф 4.0mm to Ф 1.0mm；
Described production technology in turn includes the following steps:
Vacuum melting, forging, steel rolling, gren rod, mechanical derusting, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, borax treatment, soap lye saponification, dries, first time cold-drawn, recrystallization annealing, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, borax treatment, soap lye saponification, dry, second time cold-drawn, chlorohydric acid pickling, neutral washing, high pressure water cleaning, alkali neutralizes, soap lye saponification, brilliant polish drawing, is coated with aqueous rust preventive；
In described brilliant polish drawing, by Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm steel wire be drawn to the finished product of Ф 4.0mm, Ф 3.2mm, Ф 2.5mm, Ф 2.0mm, Ф 1.6mm, Ф 1.2mm, Ф 1.0mm respectively, in drawing select DYH-2, DYH-5 type lubricant.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510000088.1A CN104526182B (en) | 2012-11-30 | 2012-11-30 | Boats and ships low-alloy steel automatic welding wire |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510000088.1A CN104526182B (en) | 2012-11-30 | 2012-11-30 | Boats and ships low-alloy steel automatic welding wire |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210498753.0A Division CN102922171B (en) | 2012-11-30 | 2012-11-30 | Production technology of Non-preheating and non-copper-plating automatic low-alloy-steel welding wire for ships |
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| CN104526182A CN104526182A (en) | 2015-04-22 |
| CN104526182B true CN104526182B (en) | 2016-07-06 |
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| CN107243705A (en) * | 2017-05-04 | 2017-10-13 | 中国科学院金属研究所 | A kind of high intensity aviation automatic welding wire processing methods of H18CrMoA |
| CN109023121B (en) * | 2018-10-11 | 2020-08-04 | 山西太钢不锈钢股份有限公司 | Method for processing ferrite free-cutting stainless steel wire |
| CN110373524B (en) * | 2019-07-16 | 2021-05-04 | 河钢股份有限公司承德分公司 | Heat treatment softening process for 90 kg-grade welding wire steel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529765A (en) * | 2000-08-07 | 2004-09-15 | 埃克森美孚上游研究公司 | Weld metals with superior low temperature toughness jfor joining high strength, low alloy steels |
| CN101244495A (en) * | 2008-03-07 | 2008-08-20 | 金秋生 | Welding wire for 90 kilogram grade low welding crack sensibility high-strength steel plate |
| CN101844281A (en) * | 2009-03-24 | 2010-09-29 | 宝山钢铁股份有限公司 | Stainless steel welding material |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61115694A (en) * | 1984-11-09 | 1986-06-03 | Kawasaki Steel Corp | Submerged arc welding method of high tensile steel |
| JPS62114796A (en) * | 1985-11-13 | 1987-05-26 | Nippon Steel Corp | Submerged arc welding method by which high-toughness weld metal is obtained |
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- 2012-11-30 CN CN201510000088.1A patent/CN104526182B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1529765A (en) * | 2000-08-07 | 2004-09-15 | 埃克森美孚上游研究公司 | Weld metals with superior low temperature toughness jfor joining high strength, low alloy steels |
| CN101244495A (en) * | 2008-03-07 | 2008-08-20 | 金秋生 | Welding wire for 90 kilogram grade low welding crack sensibility high-strength steel plate |
| CN101844281A (en) * | 2009-03-24 | 2010-09-29 | 宝山钢铁股份有限公司 | Stainless steel welding material |
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