CN106216884A - A kind of Stability Analysis of Structures is without copper facing coating welding wire - Google Patents
A kind of Stability Analysis of Structures is without copper facing coating welding wire Download PDFInfo
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- CN106216884A CN106216884A CN201610614640.0A CN201610614640A CN106216884A CN 106216884 A CN106216884 A CN 106216884A CN 201610614640 A CN201610614640 A CN 201610614640A CN 106216884 A CN106216884 A CN 106216884A
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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
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
- B23K35/362—Selection of compositions of fluxes
Abstract
The present invention proposes a kind of Stability Analysis of Structures without copper facing coating welding wire, including welding wire matrix and coat, the raw material of described coat includes by weight: ferroalloy powder 30 60 parts, titanium and titania powder 15 30 parts, calcium carbonate powder 28 parts, magnesium carbonate powder 28 parts, manganese oxide powder 0.5 8 parts, alpha-silicon nitride powders 2 15 parts, rare earth 0.5 1.5 parts, attapulgite modified 26 parts, 0.09 1.9 parts of germanium powder, hafnium powder 0.06 0.95 parts.The Stability Analysis of Structures that the present invention proposes is without copper plating soldering wire, and it has the advantages such as preferable wearability, arc stability.
Description
Technical field
The present invention relates to welding wire technology field, particularly relate to a kind of Stability Analysis of Structures without copper facing coating welding wire.
Background technology
Along with being continuously increased of welding wire demand, excellent performance, the research and development of environment-friendly type welding wire are particularly important.Tradition plating
Copperwelding rod face coat is mainly based on copper facing, and copper-plated Main Function is antirust, conduction, but produce in preparation process
Various chemical acid alkali gas pollute the environment and endanger health of human body, and discarded plating solution also can be to environmental danger.At present, non-plated
The development of copperwelding rod is achieved with certain progress.But still have that coating coating is uneven, adhesion is poor, welding effect is undesirable, make
Used time can produce the problems such as waste gas and waste liquid.
The preparation of common coating welding wire has following several: galvanoplastic, hot dipping method, mechanical alloying method.And use plating
Method be difficulty with quick sedimentary at welding wire surface, use the method for hot-dip to hardly result in the hot-dip weldering of distance
Silk, using Mechanical Alloying is not the most stable at the coat content that welding wire surface obtains.
Summary of the invention
The technical problem existed based on background technology, the present invention proposes a kind of Stability Analysis of Structures without copper plating soldering wire, its coating
Layer raw material not cupric, it is to avoid a large amount of pollutions, and the welding wire obtained has non-oxidizability, wearability and the arc stability of excellence
Property, its welding arc stablility in use, welding quality is high.
A kind of Stability Analysis of Structures that the present invention proposes is without copper facing coating welding wire, including welding wire matrix and coat, described coating
Its raw material of layer includes by weight: ferroalloy powder 30-60 part, titanium and titania powder 15-30 part, calcium carbonate powder 2-8
Part, magnesium carbonate powder 2-8 part, manganese oxide powder 0.5-8 part, alpha-silicon nitride powders 2-15 part, rare earth 0.5-1.5 part, modified concavo-convex
Rod soil 2-6 part, germanium powder 0.09-1.9 part, hafnium powder 0.06-0.95 part.
Preferably, its raw material of described coat includes by weight: ferroalloy powder 50-55 part, titanium and titanium dioxide powder
End 20-25 part, calcium carbonate powder 4-6 part, magnesium carbonate powder 4-5 part, manganese oxide powder 3-5 part, alpha-silicon nitride powders 8-12 part, dilute
Soil 0.6-1 part, attapulgite modified 4-5 part, germanium powder 0.5-1 part, hafnium powder 0.5-0.6 part.
Preferably, its raw material of described coat includes by weight: ferroalloy powder 52 parts, titanium powder 15 parts, titanium dioxide
Titanium powder 8 parts, calcium carbonate powder 5 parts, magnesium carbonate powder 4 parts, manganese oxide powder 4 parts, alpha-silicon nitride powders 10 parts, rare earth 0.8 part,
Attapulgite modified 4.5 parts, 0.8 part of germanium powder, hafnium powder 0.55 part.
Preferably, described ferroalloy powder is manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, silico-calcium conjunction
The mixture of gold.
Preferably, in described ferroalloy powder, manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, silico-calcium close
The weight ratio of gold is 1-3:2-2.5:1.5-2.5:1.5-3.5:1.5.
Preferably, described attapulgite modified it is prepared according to following technique:
S1. by broken for attapulgite, grind after at 500-650 DEG C calcination 35-50min, be cooled to room temperature, then with dense
Degree is the soak with hydrochloric acid of 35%, washes after mechanical agitation 45-60min, dries and is placed in saturated AlCl3In solution, machine at room temperature
Tool stirring 25-35min, through filtering, drying, broken after prepare the attapulgite of once modification；
S2. the once modified attapulgite prepared in S1 is joined supersound process 15-30min in ethanol water,
Being subsequently adding will be through acetated silane coupler NXT, then by its mechanical agitation 2.5-3.5h in 85-100 DEG C of water-bath,
Then be dried at 85-100 DEG C, grind obtain required attapulgite modified；The most modified attapulgite and ethanol
The weight ratio of aqueous solution is 1-1.5:2-2.5, and in ethanol water, ethanol is 2-2.5:1 with the volume ratio of water, silane coupler
NXT is 0.015-0.02:1 with the weight ratio of once modified attapulgite.
Preferably, described attapulgite modified it is prepared according to following technique:
S1. by broken for attapulgite, grind after at 580-600 DEG C calcination 40-45min, be cooled to room temperature, then with dense
Degree is the soak with hydrochloric acid of 35%, washes after mechanical agitation 50-55min, dries and is placed in saturated AlCl3In solution, machine at room temperature
Tool stirring 30-32min, through filtering, drying, broken after prepare the attapulgite of once modification；
S2. the once modified attapulgite prepared in S1 is joined supersound process 22-25min in ethanol water,
Being subsequently adding will be through acetated silane coupler NXT, then by its mechanical agitation 3-3.2h in 90-95 DEG C of water-bath, so
After be dried at 90-95 DEG C, grind obtain required attapulgite modified；The most modified attapulgite is water-soluble with ethanol
The weight ratio of liquid is 1.2:2.2, and in ethanol water, the volume ratio of ethanol and water is 2.2:1, silane coupler NXT with once change
The weight ratio of the attapulgite of property is 0.016:1.
Preferably, the granularity of each raw material of described coat is respectively less than 480 mesh.
Preferably, described coat is 0.0005-0.0995mm at the thickness of welding wire matrix skin.
Present configuration is stable uses conventional mechanical painting method to prepare without copper facing coating welding wire.
A kind of Stability Analysis of Structures that the present invention proposes is without copper facing coating welding wire, and coat is with ferroalloy powder as deoxidizer with resistance to
Grinding agent, addition rare earth, hafnium powder, titanium powder further increase the deoxidation effect of coat.Meanwhile, hafnium powder, titanium powder carry
The high plasticity of ferroalloy powder, the germanium of trace improves the fragility of ferroalloy itself.Add hafnium powder, calcium carbonate powder, carbon
Acid magnesium dust, manganese oxide powder, alpha-silicon nitride powders, further increase coat anti-wear performance, simultaneously calcium carbonate powder, carbonic acid
Magnesium dust improves cored arc stability.Add titania powder and improve the adhesion of coat, add rare earth powder, germanium
Powder, hafnium powder reduce gas overflowing and splash, and further increase coat binding ability, and the structure making coat is steady
Fixed.Add modified attapulgite, improve the compatibility of each raw material of coat and increase with the adhesion of welding wire matrix
Add, so that coat difficult drop-off.
The welding wire of the present invention is carried out performance detection, and test result is as follows: hardness is 90.5-105.6HV, performance boost
15-20%；Tensile strength is 300-450MPa, performance boost 10-15%；Relative wear coefficient is 1.95-2.45, performance boost
30-40%；Weld seam is more than 200J 0 DEG C of impact flexibility.
Detailed description of the invention
Below, by specific embodiment, technical scheme is described in detail.
Embodiment 1
A kind of Stability Analysis of Structures that the present invention proposes is without copper facing coating welding wire, including welding wire matrix and coat, described coating
Its raw material of layer includes by weight: ferroalloy powder 30 parts, titanium powder 20 parts, titania powder 10 parts, calcium carbonate powder 8
Part, magnesium carbonate powder 7 parts, manganese oxide powder 8 parts, alpha-silicon nitride powders 15 parts, rare earth 1 part, attapulgite modified 2 parts, germanium powder
0.09 part, hafnium powder 0.95 part.
Described attapulgite modified it is prepared according to following technique:
S1. by broken for attapulgite, grind after at 500 DEG C calcination 50min, be cooled to room temperature, then by concentration be
The soak with hydrochloric acid of 35%, washes after mechanical agitation 60min, dries and is placed in saturated AlCl3In solution, mechanical agitation at room temperature
35min, through filtering, drying, broken after prepare once modified attapulgite；
S2. the once modified attapulgite prepared in S1 is joined supersound process 30min in ethanol water, then
Addition will be through acetated silane coupler NXT, then by its mechanical agitation 3.5h in 100 DEG C of water-baths, then at 100 DEG C
Lower be dried, grind obtain required attapulgite modified；The most modified attapulgite and the weight ratio of ethanol water
For 1:2.5, in ethanol water, ethanol is 2.5:1 with the volume ratio of water, silane coupler NXT and once modified attapulgite
Weight ratio be 0.015:1.
Embodiment 2
A kind of Stability Analysis of Structures that the present invention proposes is without copper facing coating welding wire, including welding wire matrix and coat, described coating
Layer raw material include by weight: ferroalloy powder 35 parts, titanium powder 20 parts, titania powder 15 parts, calcium carbonate powder 7 parts,
Magnesium carbonate powder 8 parts, manganese oxide powder 7 parts, alpha-silicon nitride powders 14.5 parts, rare earth 1.1 parts, attapulgite modified 3.5 parts, germanium powder
End 1.9 parts, hafnium powder 0.5 part.
Wherein, described ferroalloy powder is by manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, calcium-silicon
Composition, manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, the weight ratio of calcium-silicon are 2.5:2:2:2:1.5；
The granularity of each raw material of described coat is 490 mesh；
Described coat is 0.0005mm at the thickness of welding wire matrix skin；
Described attapulgite modified it is prepared according to following technique:
S1. by broken for attapulgite, grind after at 550 DEG C calcination 40min, be cooled to room temperature, then by concentration be
The soak with hydrochloric acid of 35%, washes after mechanical agitation 50min, dries and is placed in saturated AlCl3In solution, mechanical agitation at room temperature
30min, through filtering, drying, broken after prepare once modified attapulgite；
S2. the once modified attapulgite prepared in S1 is joined supersound process 20min in ethanol water, then
Addition through acetated silane coupler NXT, then by its mechanical agitation 3h in 90 DEG C of water-baths, then will be done at 90 DEG C
Dry, grind obtain required attapulgite modified；The most modified attapulgite with the weight ratio of ethanol water is
1.5:2, in ethanol water, ethanol is 2:1 with the volume ratio of water, silane coupler NXT and the weight of once modified attapulgite
Amount ratio is 0.018:1.
Embodiment 3
A kind of Stability Analysis of Structures that the present invention proposes is without copper facing coating welding wire, including welding wire matrix and coat, described coating
Layer raw material include by weight: ferroalloy powder 41 parts, titanium powder 14 parts, titania powder 10 parts, calcium carbonate powder 6 parts,
Magnesium carbonate powder 6 parts, manganese oxide powder 6.04 parts, alpha-silicon nitride powders 13.5 parts, rare earth 1.5 parts, attapulgite modified 4 parts, germanium
1.8 parts of powder, hafnium powder 0.06 part.
Wherein, described ferroalloy powder is by manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, calcium-silicon
Composition, manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, the weight ratio of calcium-silicon are 2:2.5:2.5:1.5:
1.5；
The granularity of each raw material of described coat is 480 mesh；
Described coat is 0.043mm at the thickness of welding wire matrix skin；
Described attapulgite modified it is prepared according to following technique:
S1. by broken for attapulgite, grind after at 580 DEG C calcination 40min, be cooled to room temperature, then by concentration be
The soak with hydrochloric acid of 35%, washes after mechanical agitation 50min, dries and is placed in saturated AlCl3In solution, mechanical agitation at room temperature
32min, through filtering, drying, broken after prepare once modified attapulgite；
S2. the once modified attapulgite prepared in S1 is joined supersound process 24min in ethanol water, then
Addition will be through acetated silane coupler NXT, then by its mechanical agitation 3.2h in 95 DEG C of water-baths, then at 95 DEG C
Be dried, grind obtain required attapulgite modified；The most modified attapulgite with the weight ratio of ethanol water is
1.2:2.2, in ethanol water, ethanol is 2.2:1 with the volume ratio of water, silane coupler NXT and once modified attapulgite
Weight ratio be 0.016:1.
Embodiment 4
A kind of Stability Analysis of Structures that the present invention proposes is without copper facing coating welding wire, including welding wire matrix and coat, described coating
Layer raw material includes by weight: ferroalloy powder 52 parts, titanium powder 15 parts, titania powder 8 parts, calcium carbonate powder 5 parts, carbon
Acid magnesium dust 4 parts, manganese oxide powder 4 parts, alpha-silicon nitride powders 10 parts, rare earth 0.8 part, attapulgite modified 4.5 parts, germanium powder
0.8 part, hafnium powder 0.55 part.
Wherein, described ferroalloy powder is by manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, calcium-silicon
Composition, manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, the weight ratio of calcium-silicon are 2.5:2:1.5:2.5:
1.5；
Described attapulgite modified it is prepared according to following technique:
S1. by broken for attapulgite, grind after at 620 DEG C calcination 35min, be cooled to room temperature, then by concentration be
The soak with hydrochloric acid of 35%, washes after mechanical agitation 48min, dries and is placed in saturated AlCl3In solution, mechanical agitation at room temperature
26min, through filtering, drying, broken after prepare once modified attapulgite；
S2. the once modified attapulgite prepared in S1 is joined supersound process 15-30min in ethanol water,
Being subsequently adding will be through acetated silane coupler NXT, then by its mechanical agitation 2.6h in 88 DEG C of water-baths, then 87
Be dried at DEG C, grind obtain required attapulgite modified；The most modified attapulgite and the weight of ethanol water
Ratio is 1:2.5, and in ethanol water, ethanol is 2.5:1 with the volume ratio of water, silane coupler NXT and once modified attapulgite
The weight ratio of soil is 0.02:1.
Embodiment 5
A kind of Stability Analysis of Structures that the present invention proposes is without copper facing coating welding wire, including welding wire matrix and coat, described coating
Layer raw material include by weight: ferroalloy powder 57 parts, titanium powder 13.5 parts, titania powder 8 parts, calcium carbonate powder 8 parts,
Magnesium carbonate powder 8 parts, manganese oxide powder 2 parts, alpha-silicon nitride powders 2 parts, rare earth 0.5 part, attapulgite modified 5.5 parts, germanium powder
1.2 parts, hafnium powder 0.95 part.
Described attapulgite modified it is prepared according to following technique:
S1. by broken for attapulgite, grind after at 500 DEG C calcination 35min, be cooled to room temperature, then by concentration be
The soak with hydrochloric acid of 35%, washes after mechanical agitation 45min, dries and is placed in saturated AlCl3In solution, mechanical agitation at room temperature
25min, through filtering, drying, broken after prepare once modified attapulgite；
S2. the once modified attapulgite prepared in S1 is joined supersound process 15min in ethanol water, then
Addition will be through acetated silane coupler NXT, then by its mechanical agitation 2.5h in 85 DEG C of water-baths, then at 85 DEG C
Be dried, grind obtain required attapulgite modified；The most modified attapulgite with the weight ratio of ethanol water is
1:2, in ethanol water, ethanol is 2:1 with the volume ratio of water, silane coupler NXT and the weight of once modified attapulgite
Ratio is 0.015:1.
Embodiment 6
A kind of Stability Analysis of Structures that the present invention proposes is without copper facing coating welding wire, including welding wire matrix and coat, described coating
Layer raw material includes by weight: ferroalloy powder 60 parts, titanium powder 11 parts, titania powder 4 parts, calcium carbonate powder 2 parts, carbon
Acid magnesium dust 2 parts, manganese oxide powder 8 parts, alpha-silicon nitride powders 10 parts, rare earth 1 part, attapulgite modified 6 parts, germanium powder 1.15
Part, hafnium powder 0.85 part.
Wherein, described ferroalloy powder is by manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, calcium-silicon
Composition, manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, the weight ratio of calcium-silicon are 1.5:3:1.5:2.5:
1.5；
The granularity of each raw material of described coat is 520 mesh；
Described coat is 0.0995mm at the thickness of welding wire matrix skin；
Described attapulgite modified it is prepared according to following technique:
S1. by broken for attapulgite, grind after at 540 DEG C calcination 36min, be cooled to room temperature, then by concentration be
The soak with hydrochloric acid of 35%, washes after mechanical agitation 50min, dries and is placed in saturated AlCl3In solution, mechanical agitation at room temperature
30min, through filtering, drying, broken after prepare once modified attapulgite；
S2. the once modified attapulgite prepared in S1 is joined supersound process 25min in ethanol water, then
Addition will be through acetated silane coupler NXT, then by its mechanical agitation 2.9h in 90 DEG C of water-baths, then at 92 DEG C
Be dried, grind obtain required attapulgite modified；The most modified attapulgite with the weight ratio of ethanol water is
1.2:2, in ethanol water, ethanol is 2.2:1 with the volume ratio of water, silane coupler NXT and once modified attapulgite
Weight ratio is 0.016:1.
The above, the only present invention preferably detailed description of the invention, but protection scope of the present invention is not limited thereto,
Any those familiar with the art in the technical scope that the invention discloses, according to technical scheme and
Inventive concept equivalent or change in addition, all should contain within protection scope of the present invention.
Claims (9)
1. Stability Analysis of Structures is without a copper facing coating welding wire, including welding wire matrix and coat, it is characterised in that described coat its
Raw material includes by weight: ferroalloy powder 30-60 part, titanium and titania powder 15-30 part, calcium carbonate powder 2-8 part, carbon
Acid magnesium dust 2-8 part, manganese oxide powder 0.5-8 part, alpha-silicon nitride powders 2-15 part, rare earth 0.5-1.5 part, attapulgite modified 2-
6 parts, germanium powder 0.09-1.9 part, hafnium powder 0.06-0.95 part.
The most according to claim 1, Stability Analysis of Structures is without copper facing coating welding wire, it is characterised in that its raw material of described coat is by weight
Amount part includes: ferroalloy powder 50-55 part, titanium and titania powder 20-25 part, calcium carbonate powder 4-6 part, magnesium carbonate powder
4-5 part, manganese oxide powder 3-5 part, alpha-silicon nitride powders 8-12 part, rare earth 0.6-1 part, attapulgite modified 4-5 part, germanium powder
0.5-1 part, hafnium powder 0.5-0.6 part.
The most according to claim 2, Stability Analysis of Structures is without copper facing coating welding wire, it is characterised in that its raw material of described coat is by weight
Amount part includes: ferroalloy powder 52 parts, titanium powder 15 parts, titania powder 8 parts, calcium carbonate powder 5 parts, magnesium carbonate powder 4
Part, manganese oxide powder 4 parts, alpha-silicon nitride powders 10 parts, rare earth 0.8 part, attapulgite modified 4.5 parts, 0.8 part of germanium powder, hafnium powder
0.55 part of end.
4. according to Stability Analysis of Structures according to any one of claim 1-3 without copper facing coating welding wire, it is characterised in that described ferroalloy
Powder is manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, the mixture of calcium-silicon composition.
5. according to Stability Analysis of Structures according to any one of claim 1-3 without copper facing coating welding wire, it is characterised in that described ferroalloy
In powder, manganeisen, rare earth dilval, ferro-titanium, ferro-molybdenum, the weight ratio of calcium-silicon are 1-3:2-2.5:
1.5-2.5:1.5-3.5:1.5。
6. according to Stability Analysis of Structures according to any one of claim 1-3 without copper facing coating welding wire, it is characterised in that described modification is recessed
Convex rod soil is prepared according to following technique:
S1. by broken for attapulgite, grind after at 500-650 DEG C calcination 35-50min, be cooled to room temperature, then dense by quality
Degree is the soak with hydrochloric acid of 35%, washes, dry and be placed in saturated AlCl after stirring 45-60min3In solution, stir 25-at room temperature
35min, through filtering, drying, broken after prepare once modified attapulgite；
S2. the once modified attapulgite prepared in S1 is added supersound process 15-30min in ethanol water, then add
Enter through acetated silane coupler NXT, then by its mechanical agitation 2.5-3.5h in 85-100 DEG C of water-bath, then exist
Be dried at 85-100 DEG C, grind obtain required attapulgite modified；The most modified attapulgite and ethanol water
Weight ratio be 1-1.5:2-2.5, in ethanol water, the volume ratio of ethanol and water is 2-2.5:1, silane coupler NXT and
The weight ratio of the attapulgite of secondary modification is 0.015-0.02:1.
The most according to claim 6, Stability Analysis of Structures is without copper facing coating welding wire, it is characterised in that described attapulgite modified according to
Following technique is prepared:
S1. by broken for attapulgite, grind after at 580-600 DEG C calcination 40-45min, be cooled to room temperature, then by concentration be
The soak with hydrochloric acid of 35%, washes after mechanical agitation 50-55min, dries and is placed in saturated AlCl3In solution, machinery stirs at room temperature
Mix 30-32min, through filtering, drying, broken after prepare once modified attapulgite；
S2. once attapulgite modified prepared in S1 is joined supersound process 22-25min in ethanol water, then
Addition through acetated silane coupler NXT, then by its mechanical agitation 3-3.2h in 90-95 DEG C of water-bath, then will exist
Be dried at 90-95 DEG C, grind obtain required attapulgite modified；The most modified attapulgite and ethanol water
Weight ratio is 1.2:2.2, and in ethanol water, ethanol is 2.2:1 with the volume ratio of water, silane coupler NXT and once modification
The weight ratio of attapulgite is 0.016:1.
8. according to Stability Analysis of Structures according to any one of claim 1-3 without copper facing coating welding wire, it is characterised in that described coat
The granularity of each raw material is respectively less than 480 mesh.
9. according to Stability Analysis of Structures according to any one of claim 1-3 without copper facing coating welding wire, it is characterised in that described coat
Thickness at welding wire matrix skin is 0.0005-0.0995mm.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109848501A (en) * | 2019-01-16 | 2019-06-07 | 阜阳佳派生产力促进中心有限公司 | A kind of high-intensitive method for welding for molybdenum-copper and stainless steel |
| CN112719685A (en) * | 2020-12-14 | 2021-04-30 | 河钢股份有限公司 | Coated stainless steel welding wire for consumable electrode argon arc welding and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109848501A (en) * | 2019-01-16 | 2019-06-07 | 阜阳佳派生产力促进中心有限公司 | A kind of high-intensitive method for welding for molybdenum-copper and stainless steel |
| CN109848501B (en) * | 2019-01-16 | 2020-11-20 | 安徽省华瑞网业有限公司 | High-strength brazing method for molybdenum-copper alloy and stainless steel |
| CN112719685A (en) * | 2020-12-14 | 2021-04-30 | 河钢股份有限公司 | Coated stainless steel welding wire for consumable electrode argon arc welding and preparation method thereof |
| CN112719685B (en) * | 2020-12-14 | 2022-05-03 | 河钢股份有限公司 | Coated stainless steel welding wire for consumable electrode argon arc welding and preparation method thereof |
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