CN102922171A - Non-preheating and non-copper-plating automatic low-alloy-steel welding wire for ships and production technology of wire - Google Patents
Non-preheating and non-copper-plating automatic low-alloy-steel welding wire for ships and production technology of wire Download PDFInfo
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- CN102922171A CN102922171A CN2012104987530A CN201210498753A CN102922171A CN 102922171 A CN102922171 A CN 102922171A CN 2012104987530 A CN2012104987530 A CN 2012104987530A CN 201210498753 A CN201210498753 A CN 201210498753A CN 102922171 A CN102922171 A CN 102922171A
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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
- B23K35/3066—Fe as the principal constituent with Ni 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
- B23K35/22—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
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Abstract
The invention relates to a non-preheating and non-copper-plating automatic low-alloy-steel welding wire for ships. The welding wire comprises the following chemical compositions: 0.02%-0.1% of C, 2%-4% of Mn, 2%-4% of Ni, 0.5%-1% of Mo, 0.5%-0.8% of Si, 0-0.5% of Cu, 0-1.2% of Cr, 0-0.12% of V and 0-0.05% of Ti; and the drawing diameter of the welding wire ranges from phi 4.0mm to phi 1.0mm. The non-preheating and non-copper-plating automatic low-alloy-steel welding wire can be used for welding steel with high strength and high toughness without preheating, can avoid cold cracks during welding of a modern ship structure, can simplify a production technology, reduce the production cost and improve the production efficiency during the welding process, and can reduce the production cost and prevent impurities containing copper from being mixed to influence a welding effect since the welding wire does not need to be stored in a copper plating way.
Description
Technical field
The present invention relates to the preparation field of automatic welding wire, particularly a kind of not preheating, 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, good formability reaches lower manufacturing cost, therefore is 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 obviously increases, and welding cold cracking has become low-alloy high-strength steel and welded one of subject matter that faces.
Usually adopt the method for weld preheating, post weld heat treatment to avoid weld crack to produce in the production, when bringing the series of problems such as complex manufacturing, production cost increase, production efficiency reduction and working environment deterioration, also can increase the softening tendency of welding heat affected zone.
The Modern Ships structure adopts the high-intensity high-tenacity hull structural steel in a large number, and traditional high intensity for ship steel all belongs to quenched and tempered steel, and this class steel generally all needs preheating to prevent the generation of cold crack when welding.It is the technical barrier of this area with low-alloy automatic welding wire and production technology that a kind of not preheating, not copper facing boats and ships are provided.
Summary of the invention
Technical problem to be solved by this invention provides a kind of not preheating, not copper facing boats and ships low-alloy high-strength ductile steel automatic welding wire and production technology thereof.
For solving the problems of the technologies described above, the invention provides a kind of not preheating, not copper facing boats and ships low-alloy steel automatic welding wire, its chemical analysis comprises: 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%; This gage of wire drawing is Ф 4.0mm to Ф 1.0mm.
Above-mentioned not preheating, the not copper facing boats and ships production technology of low-alloy steel automatic welding wire in turn includes the following steps:
Steel rolling, gren rod, mechanical derusting are forged in vacuum melting, chlorohydric acid pickling, neutral washing, high pressure water cleaning, the alkali neutralization, boronation is processed, the soap lye saponification, oven dry, for the first time cold-drawn, recrystallization annealing, chlorohydric acid pickling, neutral washing, high pressure water cleaning, the alkali neutralization, boronation is processed, the soap lye saponification, oven dry, for the second time cold-drawn, chlorohydric acid pickling, neutral washing, high pressure water cleaning-, the alkali neutralization, the soap lye saponification, the brilliant polish drawing is coated with aqueous rust preventive.
In described twice chlorohydric acid pickling step, steel wire is put into 50% hydrochloric acid solution, soak after 20-30 minute under the normal temperature and take out, during taking-up, Steel Wire Surface must not have the hole, control FeCl2 content≤100 g/l in the immersion process.
In described twice alkali neutralization procedure, alkaline solution is the mixed solution of NaOH, NaCO3, NaHCO3, wherein, NaOH content is 20-30 g/l, NaCO3 content is 30-40 g/l, and NaHCO3 content is 25-35 g/l, in the alkali N-process, control solution pH value be 8-11, in and time 2-5 minute.
In described twice boronation treatment step, the content of borax is 150-250 g/l in the boronation solution, and when steel wire boronising was processed, 75-90 ℃ of control temperature processed after 5-10 minute and taken out, and during taking-up, Steel Wire Surface is even black gray expandable.
In described three soap lye saponification step, the content of soap flakes is 200-300 g/l in the soap lye, during saponification, controls pH value greater than 8, temperature 80-90 ℃.
Described cold-drawn first time step is rough pulling out, be Ф 5.4mm with the steel wire diameter drawing, rough choice for use DYH-G4 in the process, the DYH-G72 Dry-powder Lubricant of pulling out, this lubricant has good heat resistance, noncoking, can form good lubricating film in the Steel Wire Surface of the drawing first time, guarantee the excellent surface quality of steel wire, and after the annealing Steel Wire Surface clean, bright and clean, do not form collection carbon, the convenient cleaning.
In the described recrystallization annealing step, with steel wire heating to 690 ± 10 ℃, keep slowly cooling to below 150 ℃ after 1.5 hours, be 16-23 hour cool time.
Described cold-drawn second time step is middle drawing, be Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm with the steel wire drawing of Ф 5.4mm, these seven kinds of diameter wire are the finished product of corresponding preparation Ф 4.0mm, Ф 3.2mm, Ф 2.5mm, Ф 2.0mm, Ф 1.6mm, Ф 1.2mm, Ф 1.0mm respectively, select DYH-G10, DYH-G82 Dry-powder Lubricant in the middle drawing process, this lubricant has good greasy property, Steel Wire Surface is smooth after the drawing, the Steel Wire Surface lubricating film is soluble in water, is convenient to the production of illumi yarn.
In the described brilliant polish drawing, the steel wire of Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm is drawn to respectively 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, select DYH-2, DYH-5 type lubricant in the drawing, this lubricant has strong adhesion, high lubricating effect, anti-extrusion, anti-oxidant, use the characteristics such as the rear surface is even, smooth, fineness is high.
Described being coated with in the aqueous rust preventive step, antirust solution is the mixed solution of natrium nitrosum, G ﹠ W, wherein, natrium nitrosum is 5-12 g/l, glycerine 10-12 g/l, surplus is water, can pack warehouse-in after aqueous rust preventive is painted with.
Technique effect of the present invention: (1) not preheating of the present invention, not copper facing boats and ships can just can weld when high-strength and high-toughness steel welds with the low-alloy automatic welding wire in not preheating, see embodiment 5, this welding wire this welding wire of welding performance data declaration of several high-strength and high-toughness steels in not preheating situation can weld in not preheating, and welding effect is good, not preheating is welded on the generation that can avoid cold crack in the welding of Modern Ships structure, and in welding process, can simplify production technology, reduce production cost, speed production efficient, and this automatic welding wire only need be coated with aqueous rust preventive when storing, need not preserve by copper facing, reduced equally production cost, and can not sneak into cupric impurity and affect welding effect; (2) chemical analysis of welding material strict control welding material in batching, smelting process by process optimization, adopts furnace outer refining technology, effectively reduces the impurity contents such as S, P, O, N, guarantees the cleanliness factor of welding material.
The specific embodiment
Embodiment 1
The not preheating of present embodiment, not copper facing boats and ships low-alloy steel automatic welding wire, its chemical analysis comprises: C 0.02%, and Mn 2%, and Ni 4%, and Mo 0.5%, and Si 0.5%, and Cu 0.2%, and Cr 0.5%, and V 0.1%, and Ti 0.01%; This gage of wire drawing is Ф 4.0mm to Ф 1.0mm.
Embodiment 2
The not preheating of present embodiment, not copper facing boats and ships low-alloy steel automatic welding wire, its chemical analysis comprises: C 0.05%, and Mn 3%, and Ni 3%, and Mo 0.7%, and Si 0.6%, and Cu 0.3%, and Cr 0.6%, and V 0.06%, and Ti 0.03%; This gage of wire drawing is Ф 4.0mm to Ф 1.0mm
Embodiment 3
The not preheating of present embodiment, not copper facing boats and ships low-alloy steel automatic welding wire, its chemical analysis comprises: C 0.1%, and Mn 4%, and Ni 2%, and Mo 1%, and Si 0.8%, and Cu 0.5%, and Cr 1.2%, and V 0.12%, and Ti 0.05%; This gage of wire drawing is Ф 4.0mm to Ф 1.0mm.
Embodiment 4
The described not preheating of above-described embodiment 1-3, the not copper facing boats and ships production technology of low-alloy steel automatic welding wire in turn includes the following steps:
Steel rolling, gren rod, mechanical derusting are forged in vacuum melting, chlorohydric acid pickling, neutral washing, high pressure water cleaning, the alkali neutralization, boronation is processed, the soap lye saponification, oven dry, for the first time cold-drawn, recrystallization annealing, chlorohydric acid pickling, neutral washing, high pressure water cleaning, the alkali neutralization, boronation is processed, the soap lye saponification, oven dry, for the second time cold-drawn, chlorohydric acid pickling, neutral washing, high pressure water cleaning-, the alkali neutralization, the soap lye saponification, the brilliant polish drawing is coated with aqueous rust preventive.
1, chlorohydric acid pickling: steel wire is put into 50% hydrochloric acid solution, soak after 20-30 minute under the normal temperature and take out, during taking-up, Steel Wire Surface must not have the hole, control FeCl2 content≤100 g/l in the immersion process.See Table 1.
Table 1
| Hydrochloric acid | Temperature | Time | The surface | FeCl2 |
| 50% | Normal temperature | 20-30 divides | The hole must not be arranged | ≤100 g/l |
2, alkali neutralization: alkaline solution is the mixed solution of NaOH, NaCO3, NaHCO3, and wherein, NaOH content is 20-30 g/l, NaCO3 content is 30-40 g/l, and NaHCO3 content is 25-35 g/l, in the alkali N-process, control solution pH value be 8-11, in and time 2-5 minute.See Table 2.
Table 2
| NaOH | NaCO3 | NaHCO3 | PH value | Time |
| 20-30 g/l | 30-40 g/l | 25-35 g/l | 8-11 | 2-5 minute |
3, boronation is processed: the content of borax is 150-250 g/l in the boronation solution, and when steel wire boronising was processed, 75-90 ℃ of control temperature processed after 5-10 minute and taken out, and during taking-up, Steel Wire Surface is even black gray expandable.See Table 3.
Table 3
| Borax | Temperature | Time | The surface |
| 150-250 g/l | 75-90℃ | 5-10 divides | Black gray expandable is even |
4, soap lye saponification: the content of soap flakes is 200-300 g/l in the soap lye, during saponification, controls pH value greater than 8, temperature 80-90 ℃.See Table 4.
Table 4
| Soap flakes | Temperature | PH value |
| 200-300 g/l | 80-90℃ | ＞8 |
5, cold-drawing technology:
(1) for the first time cold-drawn: for the first time cold-drawn is rough pulling out, be Ф 5.4mm with the steel wire diameter drawing, rough choice for use DYH-G4 in the process, the DYH-G72 Dry-powder Lubricant of pulling out, this lubricant has good heat resistance, noncoking, can form good lubricating film in the Steel Wire Surface of the drawing first time, guarantee the excellent surface quality of steel wire, and after the annealing Steel Wire Surface clean, bright and clean, do not form collection carbon, the convenient cleaning.
(2) in the described recrystallization annealing step, with steel wire heating to 690 ± 10 ℃, keep slowly cooling to below 150 ℃ after 1.5 hours, be 16-23 hour cool time.
(3) for the second time cold-drawn: for the second time cold-drawn is middle drawing, be Ф 4.15mm with 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 corresponding 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, select DYH-G10 in the middle drawing process, the DYH-G82 Dry-powder Lubricant, this lubricant has good greasy property, Steel Wire Surface is smooth after the drawing, the Steel Wire Surface lubricating film is soluble in water, is convenient to the production of illumi yarn.
(4) brilliant polish drawing: the finished product that the steel wire of Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm is drawn to respectively Ф 4.0mm, Ф 3.2mm, Ф 2.5mm, Ф 2.0mm, Ф 1.6mm, Ф 1.2mm, Ф 1.0mm, select DYH-2, DYH-5 type lubricant in the drawing, this lubricant has strong adhesion, high lubricating effect, anti-extrusion, anti-oxidant, use the characteristics such as the rear surface is even, smooth, fineness is high.
6, be coated with aqueous rust preventive: antirust solution is the mixed solution of natrium nitrosum, G ﹠ W, and wherein, natrium nitrosum is 5-12 g/l, glycerine 10-12 g/l, and surplus is water, can pack warehouse-in after aqueous rust preventive is painted with.
Embodiment 5
The described not welding wire of above-described embodiment, when not preheating welding buckling strength is 790MPa, 890MPa, 960MPa, 1100MPa high-strength steel, deposited metal performance indications such as table 5.
Table 5
Wherein Rm is tensile strength, R
P0.2Be yield strength, A is elongation after fracture, A
Kv-50 ℃Be-50 ℃ of impact absorption energy, A
Kv-40 ℃Be-40 ℃ of impact absorption energy.
Claims (8)
1. a not preheating, not copper facing boats and ships low-alloy steel automatic welding wire, it is characterized in that: its chemical analysis comprises: 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%; This gage of wire drawing is Ф 4.0mm to Ф 1.0mm.
2. a not preheating, not copper facing boats and ships is characterized in that in turn including the following steps with the production technology of low-alloy steel automatic welding wire:
Steel rolling, gren rod, mechanical derusting are forged in vacuum melting, chlorohydric acid pickling, neutral washing, high pressure water cleaning, the alkali neutralization, boronation is processed, the soap lye saponification, oven dry, for the first time cold-drawn, recrystallization annealing, chlorohydric acid pickling, neutral washing, high pressure water cleaning, the alkali neutralization, boronation is processed, the soap lye saponification, oven dry, for the second time cold-drawn, chlorohydric acid pickling, neutral washing, high pressure water cleaning-, the alkali neutralization, the soap lye saponification, the brilliant polish drawing is coated with aqueous rust preventive.
3. not preheating as claimed in claim 2, the not copper facing boats and ships production technology of low-alloy steel automatic welding wire, it is characterized in that: in described twice chlorohydric acid pickling step, steel wire put into 50% hydrochloric acid solution, soak after 20-30 minute under the normal temperature and take out, control FeCl2 content≤100 g/l in the immersion process.
4. not preheating as claimed in claim 2, the not copper facing boats and ships production technology of low-alloy steel automatic welding wire, it is characterized in that: in described twice alkali neutralization procedure, alkaline solution is the mixed solution of NaOH, NaCO3, NaHCO3, wherein, NaOH content is 20-30 g/l, and NaCO3 content is 30-40 g/l, NaHCO3 content is 25-35 g/l, in the alkali N-process, control solution pH value be 8-11, in and time 2-5 minute.
5. not preheating as claimed in claim 2, the not copper facing boats and ships production technology of low-alloy steel automatic welding wire, it is characterized in that: in described twice boronation treatment step, the content of borax is 150-250 g/l in the boronation solution, when steel wire boronising is processed, 75-90 ℃ of control temperature processed after 5-10 minute and taken out.
6. not preheating as claimed in claim 2, the not copper facing boats and ships production technology of low-alloy steel automatic welding wire, it is characterized in that: in described three soap lye saponification step, the content of soap flakes is 200-300 g/l in the soap lye, during saponification, control pH value greater than 8, temperature 80-90 ℃.
7. not preheating as claimed in claim 2, the not copper facing boats and ships production technology of low-alloy steel automatic welding wire, it is characterized in that: described cold-drawn first time step is rough pulling out, be Ф 5.4mm with the steel wire diameter drawing, rough choice for use DYH-G4 in the process, the DYH-G72 Dry-powder Lubricant of pulling out;
In the described recrystallization annealing step, with steel wire heating to 690 ± 10 ℃, keep slowly cooling to below 150 ℃ after 1.5 hours, be 16-23 hour cool time;
Described cold-drawn second time step is middle drawing, be Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm with the steel wire drawing of Ф 5.4mm, select DYH-G10, DYH-G82 Dry-powder Lubricant in the middle drawing process;
In the described brilliant polish drawing, the steel wire of Ф 4.15mm, Ф 3.35mm, Ф 2.6mm, Ф 2.2mm, Ф 1.8mm, Ф 1.4mm, Ф 1.2mm is drawn to respectively 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, selects DYH-2, DYH-5 type lubricant in the drawing.
8. not preheating as claimed in claim 2, the not copper facing boats and ships production technology of low-alloy steel automatic welding wire, it is characterized in that: described being coated with in the aqueous rust preventive step, antirust solution is the mixed solution of natrium nitrosum, G ﹠ W, wherein, natrium nitrosum is 5-12 g/l, glycerine 10-12 g/l, surplus is water.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000087.7A CN104625491B (en) | 2012-11-30 | 2012-11-30 | A kind of production technology of ship automatic welding wire |
| CN201210498753.0A 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 |
| CN201510000097.0A CN104646855B (en) | 2012-11-30 | 2012-11-30 | A kind of can the production technology of boats and ships automatic welding wire of speed production efficiency |
| CN201510000093.2A CN104646853B (en) | 2012-11-30 | 2012-11-30 | The production technology with low-alloy steel automatic welding wire for the boats and ships of production cost can be reduced |
| CN201510000096.6A CN104646854B (en) | 2012-11-30 | 2012-11-30 | Do not preheat the production technology of boats and ships welding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210498753.0A 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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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000087.7A Division CN104625491B (en) | 2012-11-30 | 2012-11-30 | A kind of production technology of ship automatic welding wire |
| CN201510000095.1A Division CN104526184B (en) | 2012-11-30 | 2012-11-30 | Do not preheat, the production technology of not copper facing boats and ships low-alloy high-strength ductile steel automatic welding wire |
| CN201510000084.3A Division CN104625475A (en) | 2012-11-30 | 2012-11-30 | Production process of automatic preheating-free coppering-free low alloy steel welding wire for ships |
| CN201510000088.1A Division CN104526182B (en) | 2012-11-30 | 2012-11-30 | Boats and ships low-alloy steel automatic welding wire |
| CN201510000093.2A Division CN104646853B (en) | 2012-11-30 | 2012-11-30 | The production technology with low-alloy steel automatic welding wire for the boats and ships of production cost can be reduced |
| CN201510000086.2A Division CN104625490A (en) | 2012-11-30 | 2012-11-30 | Production technology for welding wire for ship |
| CN201510000094.7A Division CN104526183B (en) | 2012-11-30 | 2012-11-30 | The not copper facing boats and ships production technology of low-alloy steel automatic welding wire |
| CN201510000085.8A Division CN104625489A (en) | 2012-11-30 | 2012-11-30 | Production technology for automatic low alloy steel welding wire for ship |
| CN201510000096.6A Division CN104646854B (en) | 2012-11-30 | 2012-11-30 | Do not preheat the production technology of boats and ships welding wire |
| CN201510000097.0A Division CN104646855B (en) | 2012-11-30 | 2012-11-30 | A kind of can the production technology of boats and ships automatic welding wire of speed production efficiency |
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| CN102922171B CN102922171B (en) | 2015-01-07 |
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| CN201210498753.0A Active 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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| CN103692108A (en) * | 2013-12-19 | 2014-04-02 | 唐山鸿鹏焊业有限公司 | Boron contained alloy steel welding wires and production process thereof |
| CN103692108B (en) * | 2013-12-19 | 2015-10-07 | 唐山鸿鹏焊业有限公司 | A kind of production technology of boron-containing alloy steel welding wire |
| CN103753056A (en) * | 2013-12-24 | 2014-04-30 | 天津钢铁集团有限公司 | Novel process for producing low carbon gas shielded welding wire |
| CN103753056B (en) * | 2013-12-24 | 2016-05-25 | 天津钢铁集团有限公司 | A kind of low-carbon (LC) gas shield welding wire production technology |
| CN105921914A (en) * | 2016-06-01 | 2016-09-07 | 武汉铁锚焊接材料股份有限公司 | Method and device for producing barreled copper-coated-free solid welding wire for high-strength steel |
| 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 |
| 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 |
| CN108015451A (en) * | 2017-12-01 | 2018-05-11 | 四川西冶新材料股份有限公司 | High tenacity gas shield welding wire for long-life weather-proof steel construction and preparation method thereof |
| CN109852889A (en) * | 2019-04-02 | 2019-06-07 | 鞍钢股份有限公司 | Economical 460MPa grades of weather-proof peg wire rod, production method and peg |
| CN109852889B (en) * | 2019-04-02 | 2021-01-08 | 鞍钢股份有限公司 | Economical wire rod for 460 MPa-grade weather-resistant stud, production method and stud |
| CN111571062A (en) * | 2020-05-26 | 2020-08-25 | 哈尔滨焊接研究院有限公司 | Low alloy steel gas shielded welding wire for 800 MPa-level welding |
| CN115302126A (en) * | 2022-10-12 | 2022-11-08 | 中国科学院金属研究所 | Jepa-grade high-strength high-toughness argon tungsten-arc welding material for ocean engineering and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104646855B (en) | 2016-04-06 |
| CN102922171B (en) | 2015-01-07 |
| CN104646855A (en) | 2015-05-27 |
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