CN1034113C - Anti-reddening austenitic stainless steel welding rod and its preparing method - Google Patents
Anti-reddening austenitic stainless steel welding rod and its preparing method Download PDFInfo
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- CN1034113C CN1034113C CN 94118437 CN94118437A CN1034113C CN 1034113 C CN1034113 C CN 1034113C CN 94118437 CN94118437 CN 94118437 CN 94118437 A CN94118437 A CN 94118437A CN 1034113 C CN1034113 C CN 1034113C
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- welding rod
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- reddening
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Abstract
The present invention relates to an anti-reddening austenitic stainless steel welding rod and a preparing method thereof, which belongs to the field of stainless steel welding rods. The present invention mainly solves the problem of reddening of stainless steel welding rods and is characterized in that the surface of a stainless steel welding wire is coated with a metal material with low resistivity to reduce the resistivity of a steel core and reduce the accumulation of resistance heat, and the accumulation of resistance heat causes the increase of the temperature of the steel core of the welding rod. The welding rod of the present invention has the advantages of good processing property and beautiful welding seam appearance; the temperature of the steel core is reduced by 300 to 400 DEG C, and the welding rod is suitable for all position welding. F.
Description
The present invention relates to a kind of austenite stainless steel-made welding rod and preparation method.
Austenite stainless steel-made welding rod, steel core resistance is big, the welding rod fusing coefficient is little, fusing time is long, the resistance heat of generation is many, the temperature rise that makes welding rod up to 900 ℃ about, cause rubescent, the cracking of coating, even come off.Coating loses its due protective effect, causes that processing property of electrode worsens, and has a strong impact on weldquality.In addition, also have to quite long residue welding rod is partly abandoned, cause the very big waste of this valuable welding rod.Therefore when austenite stainless steel-made welding rod is made, all adopt to reduce welding rod length, reduce the method for welding current during use, influence production efficiency.In order to address the above problem, it is double-deck 19-10 type stainless steel electrode that Japan Patent clear 61-206596 proposes a kind of coating, this electrode coating is divided into internal layer and skin, the internal layer coating is titanium type or low hydrogen type, and the outer refractory layer of forming by carbonate mine materials such as calcium carbonate, improved the heat resistance of welding rod greatly, welding rod bake out temperature is during fabrication brought up to 500 ℃.The major defect of the present invention is a double-layer coating manufacturing process complexity, is difficult to extensive use.And only anti-500 ℃ of high temperature, coating intensity descended greatly when welding reached 900 ℃.Domestic patent 92102650.1 (application number) adopts low-carbon steel core, and the method for full coating transition alloy solves rubescent problem.Its deficiency is owing to add alloying constituents in the coating in a large number, and the electrode coating coefficient is increased, and dope layer thickens.Be difficult to carry out all-position welding, even weld is poor, and powder amount is big, has limited the scope of application of welding rod.
The object of the present invention is to provide a kind of simple anti-rubescent austenite stainless steel-made welding rod and preparation method.
A kind of anti-reddening austenitic stainless steel welding rod is made up of core wire 1 and coating 2.
It is characterized in that at first being coated with the metal material 3 of one deck low-resistivity on stainless steel core wire 1 surface of Φ 4mm, after be coated with coating material at the metal material surface of low-resistivity again.
A kind of anti-reddening austenitic stainless steel welding rod is characterized in that compositions of surfacing metal (weight %) is: (composition＜1 〉)
TiO
2?42 CaCO
3?7
CaF
2?10 MgCO
3?4
SiO
2?8 Mn-Fe 6
Si-Fe?2 Ti-Fe 5
Mn 3 Cr 3
All the other are the Fe powder.
A kind of anti-reddening austenitic stainless steel welding rod is characterized in that compositions of surfacing metal (weight %) is: (composition＜2 〉)
CaCO
2?39 CaF
2?32
MgCO
3?1 TiO
2?4
SiO
2 3 Si-Fe?5
Ti-Fe 6 Mn 5
Cr 5
Austenite stainless steel-made welding rod is rubescent, and the coating cracking mainly is owing to steel core resistivity causes greatly.When making welding rod, be coated with one deck low resistivity metal material at the core wire outer surface, reduce the resistivity of steel core, reduce the gathering of resistance heat and the welding rod temperature that causes raises.
Welding rod provided by the invention, arc stability during welding, it is little to splash, and appearance of weld is attractive in appearance, and it is easy to take off slag.Compare with similar welding rod during welding, welding rod afterbody steel core surface temperature descends 300～400 ℃.When increasing the welding current welding, during residue discard electrode≤50mm, coating does not have rubescent, cracking phenomena.This welding rod can suitably increase welding rod length when making, can increase welding current during use.Cut the waste, raise labour efficiency, economic benefit is comparatively remarkable.
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing 1 welding rod profile
1. core wire
1. coating
3. the metal material coating of low-resistivity
Embodiment:
The H1Cr21Ni10Mn6 core wire of Φ mm is dipped in CuSO
4Coating in the solution forms the thick Cu metal material coating of 0.09mm.To fill a prescription＜1, prescription＜2〉medicinal powder, be coated in core wire outside, the formation diameter is d
2The welding rod of=6.2mm dries in the shade through 48H, goes into stove baking, insulation, cooling naturally.
For ease of comparing three kinds of welding rods of extrusion.First kind is not plated the Cu core wire, coating formulation＜1〉coating; Second kind of plating Cu core wire coating formulation＜1〉coating; The third plating Cu core wire coating formulation＜2〉coating.
In the welding process, three kinds of welding rods of METHOD FOR CONTINUOUS DETERMINATION are apart from afterbody 50mm place core wire surface temperature data.Test result as shown in Figure 2. Curve 1,2,3 is represented the temperature variation curve of three kinds of welding rods respectively. Curve 1,2 shows that with a kind of coating recipe, behind the core wire coating Cu layer, in the welding rod combustion process, the core wire surface temperature obviously descends. Curve 2,3 shows that for the same Cu layer core wire that be coated with, coating recipe changes, and in the welding rod combustion process, the core wire surface temperature changes little.Therefore, utilize rubescent tendency when the method for stainless steel core wire surface coating one deck low resistivity metal material material can reduce the stainless steel electrode welding effectively.
Wherein: 1. fill a prescription＜1〉do not add the coating welding rod
The prescription＜1〉coating 0.09mm welding rod
The prescription＜2〉coating 0.09mm welding rods
Claims (4)
1. an anti-reddening austenitic stainless steel welding rod is made up of core wire 1 and coating 2, it is characterized in that at first being coated with on stainless steel core wire 1 surface of Φ 4mm the metal material 3 of one deck low-resistivity, after be coated with coating material at the metal material surface of low-resistivity again,
2. anti-reddening austenitic stainless steel welding rod according to claim 1 is characterized in that compositions of surfacing metal (weight %) is:
TiO
2?42 CaCO
3?7
CaF
2?10 MgCO
3?4
SiO
2?8 Mn-Fe 6
Si-Fe?2 Ti-Fe 5
Mn 3 Cr 3
All the other are the Fe powder.
3. anti-reddening austenitic stainless steel welding rod according to claim 1 is characterized in that compositions of surfacing metal (weight %) is:
CaCO
3?39 CaF
2?32
MgCO
3?1 TiO
2?4
SiO
2 3 Si-Fe?5
Ti-Fe 6 Mn 5
Cr 5
4. a method for preparing as welding rod as described in the claim 1,2,3 is characterized in that core wire 1 is dipped in CuSo
4Electroplate in the solution, form the Cu coated metal material 3 of 0.01～0.1mm thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94118437 CN1034113C (en) | 1994-11-20 | 1994-11-20 | Anti-reddening austenitic stainless steel welding rod and its preparing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94118437 CN1034113C (en) | 1994-11-20 | 1994-11-20 | Anti-reddening austenitic stainless steel welding rod and its preparing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1107402A CN1107402A (en) | 1995-08-30 |
| CN1034113C true CN1034113C (en) | 1997-02-26 |
Family
ID=5038834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94118437 Expired - Fee Related CN1034113C (en) | 1994-11-20 | 1994-11-20 | Anti-reddening austenitic stainless steel welding rod and its preparing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1034113C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108453434A (en) * | 2018-01-24 | 2018-08-28 | 江苏孚尔姆焊业股份有限公司 | The anti-red stainless steel welding electrode coating additive of tail |
| CN110877169B (en) * | 2019-11-18 | 2021-12-10 | 内蒙金属材料研究所 | Electrodeposition nickel-tungsten-rare earth surfacing electrode and preparation process thereof |
| CN111112882B (en) * | 2020-01-17 | 2021-05-14 | 郑州大学 | Stainless steel welding rod capable of resisting reddening and cracking of coating |
| CN110936057B (en) * | 2020-01-17 | 2021-07-02 | 郑州大学 | Double core wire coated welding rod for stainless steel welding with resistance to coated red and cracking |
| CN111136400B (en) * | 2020-02-26 | 2021-04-23 | 郑州大学 | Stainless steel welding rod |
| CN111037147B (en) * | 2020-02-26 | 2021-04-30 | 郑州大学 | Combined stainless steel core coated welding rod |
-
1994
- 1994-11-20 CN CN 94118437 patent/CN1034113C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1107402A (en) | 1995-08-30 |
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