CN109865959A - A kind of stainless steel welding stick and preparation method thereof suitable for chemical industry - Google Patents
A kind of stainless steel welding stick and preparation method thereof suitable for chemical industry Download PDFInfo
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- CN109865959A CN109865959A CN201910126054.5A CN201910126054A CN109865959A CN 109865959 A CN109865959 A CN 109865959A CN 201910126054 A CN201910126054 A CN 201910126054A CN 109865959 A CN109865959 A CN 109865959A
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Abstract
The invention discloses a kind of stainless steel welding sticks suitable for chemical industry, its chemical component is by mass percentage are as follows: C≤0.08%, N:0.50~0.80%, Mn:16.50~17.50%, Cr:20.00~22.00%, Ni:2.00~2.50%, Mo:3.50~4.50%, Si:0.85~1.25%, S≤0.01%, P≤0.02%, surplus Fe.The present invention has obtained the stainless steel welding stick suitable for chemical industry by the method for control element ingredient, and weld seam is still able to maintain good corrosion resistance and mechanical property under chemical industry corrosive environment.
Description
Technical field
The present invention relates to welding material of metal correlative technology field, in particular to a kind of stainless steel suitable for chemical industry
Welding wire and preparation method thereof.
Background technique
The element that stainless steel contains can aoxidize to form dynamic passivation layer, therefore comparatively stainless steel has preferably
Corrosion resistance.Meanwhile stainless steel also has the characteristics that high intensity, high tenacity, good processability, therefore being widely used in
Industrial and commercial bank's industry, such as pressure vessel, pipeline, equipment.However, due to the diversity of chemical industry operating condition, along with the corruption of stainless steel
Erosion is also diversified.It is chronically under rugged environment, stainless steel can inevitably corrode.
The corrosion of stainless steel is divided into general corrosion and local corrosion.The general corrosion of stainless steel can by data into
Row prediction.Moreover, general corrosion is the process gradually developed, can be taken precautions against in advance.But local corrosion process is not with
Predictable, comparatively bring potential hazard is bigger.And stainless steel is often the point for being easiest to corrode in weld,
Part may cause the corrosion resistance decline of stainless steel in heating, while the performance for the silk material welded itself also particularly weighs
It wants, this seems more important in chemical industry.Therefore, the selection of welding wire is just provided with higher requirement, is guaranteeing to connect
While head intensity and toughness, it is necessary to also keep preferable corrosion resistance.Current stainless steel welding stick price common on the market is general
All over higher, and intensity is lower, therefore it is desirable that is capable of providing that a kind of price is relatively low, intensity is higher and has excellent
The stainless steel welding stick suitable for chemical industry of corrosion resistance.
Summary of the invention
(1) the technical issues of solving
In order to solve the problems, such as that stainless steel weld joint is easily corroded and is broken under chemical industry corrosive environment, the present invention is intended to provide one
Kind be suitable for the stainless steel welding stick used in chemical industry, except relative to the stainless steel welding stick price used on the market it is lower it
Outside, weld seam is able to maintain higher intensity and excellent corrosion resistance under marine environment.
(2) technical solution
In order to achieve the above object, the present invention is achieved by the following technical programs:
A kind of stainless steel welding stick suitable for chemical industry, chemical component is by mass percentage are as follows: C≤0.08%,
N:0.50~0.80%, Mn:16.50~17.50%, Cr:20.00~22.00%, Ni:2.00~2.50%, Mo:3.50~
4.50%, Si:0.85~1.25%, S≤0.01%, P≤0.02%, surplus Fe.
Optionally, chemical component is by mass percentage are as follows: and C≤0.08%, N:0.70~0.80%, Mn:16.50~
17.50%, Cr:20.00~22.00%, Ni:2.00~2.50%, Mo:3.50~4.50%, Si:0.85~1.25%, S≤
0.01%, P≤0.02%, surplus Fe.
A kind of preparation method of the stainless steel welding stick suitable for chemical industry, which is characterized in that specifically comprise the following steps:
S1, raw material is configured according to the ingredient of design, the raw material prepared (in addition to chromium nitride) is added in induction melting furnace
Melting；
Chromium nitride and adjusting component is added after S2, melting degassing purification, ingredient is casting continuously to form the bar of diameter 50mm after meeting；
S3, the wire rod that diameter 6mm is made in multistage hot deformation is carried out, then is processed as the silk of 1.0~2.0mm of diameter by cold-drawn
Material；
It is finally packaged as the plate-like welding wire of fixed mass, in case TIG (non-melt pole Heliarc welding), MIG
(metal inert gas arc welding) welding uses.
(3) beneficial effect
The stainless steel welding stick and preparation method thereof that the present invention provides a kind of suitable for chemical industry has following beneficial to effect
Fruit:
The present invention has obtained the stainless steel welding stick suitable for chemical industry by the method for control element ingredient, and weld seam exists
Good corrosion resistance and mechanical property are still able to maintain under chemical industry corrosive environment.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical scheme in the embodiment of the invention is clearly and completely described,
Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all
Belong to the scope of protection of the invention.
Embodiment 1:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows: C≤
0.08%, N:0.78%, Mn:17.05%, Cr:21.78%, Ni:2.37%, Mo:3.52%, Si:0.90%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 1.0mm silk material, setting welding current be 170A, speed of welding 0.25m/min,
Wire feed rate is 1.9m/min, is welded in heap on substrate using TIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
Embodiment 2:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows:
C≤0.08%, N:0.80%, Mn:17.40%, Cr:21.54%, Ni:2.00%, Mo:3.83%, Si:1.07%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 1.0mm silk material, setting welding current be 170A, speed of welding 0.25m/min,
Wire feed rate is 1.9m/min, is welded in heap on substrate using MIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
Embodiment 3:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows:
C≤0.08%, N:0.79%, Mn:16.50%, Cr:20.98%, Ni:2.22%, Mo:3.64%, Si:0.85%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 1.2mm silk material, setting welding current be 178A, speed of welding 0.28m/min,
Wire feed rate is 1.9m/min, is welded in heap on substrate using TIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
Embodiment 4:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows:
C≤0.08%, N:0.68%, Mn:16.78%, Cr:20.00%, Ni:2.18%, Mo:3.86%, Si:1.23%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 1.2mm silk material, setting welding current be 178A, speed of welding 0.28m/min,
Wire feed rate is 1.9m/min, is welded in heap on substrate using MIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
Embodiment 5:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows:
C≤0.08%, N:0.73%, Mn:17.30%, Cr:21.37%, Ni:2.43%, Mo:3.50%, Si:0.89%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 1.2mm silk material, setting welding current be 178A, speed of welding 0.28m/min,
Wire feed rate is 1.9m/min, is welded in heap on substrate using TIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
Embodiment 6:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows:
C≤0.08%, N:0.77%, Mn:16.93%, Cr:20.38%, Ni:2.50%, Mo:3.64%, Si:1.25%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 1.6mm silk material, setting welding current be 180A, speed of welding 0.30m/min,
Wire feed rate is 1.5m/min, is welded in heap on substrate using TIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
Embodiment 7:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows:
C≤0.08%, N:0.50%, Mn:16.81%, Cr:20.57%, Ni:2.17%, Mo:3.79%, Si:0.98%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 1.6mm silk material, setting welding current be 180A, speed of welding 0.30m/min,
Wire feed rate is 1.5m/min, is welded in heap on substrate using MIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
Embodiment 8:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows:
C≤0.08%, N:0.63%, Mn:17.28%, Cr:22.00%, Ni:2.35%, Mo:3.81%, Si:1.14%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 2.0mm silk material, setting welding current be 180A, speed of welding 0.28m/min,
Wire feed rate is 1.2m/min, is welded in heap on substrate using TIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
Embodiment 9:
A kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows:
C≤0.08%, N:0.76%, Mn:17.50%, Cr:21.03%, Ni:2.28%, Mo:4.50%, Si:1.21%, S≤
0.01%, P≤0.02%, surplus Fe.
By stainless steel be made diameter be 2.0mm silk material, setting welding current be 180A, speed of welding 0.28m/min,
Wire feed rate is 1.2m/min, is welded in heap on substrate using MIG and welds the block sample having a size of 10x10x5cm.It will weldering
Sample after connecing, which is placed in the acid water-filling solution of chloride ion-containing, to be impregnated one month, and surface topography is observed, and discovery surface, which is formed, to be caused
Close oxidation film, no spot corrosion occur, and meet corrosion resistance requirement.According to tension test national standard, block is made and meets country
The tensile testing samples of standard simultaneously carry out Erichsen test, measure weldment mechanical property.
1 specific embodiment component list (%) of table
In addition to the ingredient that table 1 provides, remaining is C≤0.08%, S≤0.01%, P≤0.02%, surplus Fe.
2 properties actual measured value of table
In summary: the present invention has obtained welding suitable for the stainless steel of chemical industry by the method for control element ingredient
Silk, weld seam are still able to maintain good corrosion resistance and mechanical property under chemical industry corrosive environment.
It should be noted that in the present invention unless specifically defined or limited otherwise, fisrt feature is in second feature
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact "up" or "down".
Moreover, fisrt feature can be above the second feature " above ", " above " and " above " fisrt feature right above second feature or tiltedly
Top, or first feature horizontal height is merely representative of higher than second feature.Fisrt feature second feature " under ", " lower section " and
" following " can be fisrt feature and be directly under or diagonally below the second feature, or be merely representative of first feature horizontal height less than
Two features.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (3)
1. a kind of stainless steel welding stick suitable for chemical industry, which is characterized in that its chemical component is by mass percentage are as follows: C
≤ 0.08%, N:0.50~0.80%, Mn:16.50~17.50%, Cr:20.00~22.00%, Ni:2.00~2.50%,
Mo:3.50~4.50%, Si:0.85~1.25%, S≤0.01%, P≤0.02%, surplus Fe.
2. a kind of stainless steel welding stick suitable for chemical industry according to claim 1, which is characterized in that its chemical component
By mass percentage are as follows: C≤0.08%, N:0.70~0.80%, Mn:16.50~17.50%, Cr:20.00~
22.00%, Ni:2.00~2.50%, Mo:3.50~4.50%, Si:0.85~1.25%, S≤0.01%, P≤0.02%,
Surplus is Fe.
3. it is according to claim 1 or 2 any one be suitable for the preparation method of the stainless steel welding stick of chemical industry, it is special
Sign is, specifically comprises the following steps:
S1, raw material is configured according to the ingredient of design, melting in induction melting furnace is added in the raw material prepared (in addition to chromium nitride)；
Chromium nitride and adjusting component is added after S2, melting degassing purification, ingredient is casting continuously to form the bar of diameter 50mm after meeting；
S3, the wire rod that diameter 6mm is made in multistage hot deformation is carried out, then is processed as the silk material of 1.0~2.0mm of diameter by cold-drawn.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126054.5A CN109865959A (en) | 2019-02-20 | 2019-02-20 | A kind of stainless steel welding stick and preparation method thereof suitable for chemical industry |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910126054.5A CN109865959A (en) | 2019-02-20 | 2019-02-20 | A kind of stainless steel welding stick and preparation method thereof suitable for chemical industry |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10166179A (en) * | 1996-12-05 | 1998-06-23 | Kobe Steel Ltd | High mn stainless welding wire for extra low temp. excellent in welding high temp. crack resistance |
| US20050178478A1 (en) * | 2003-03-20 | 2005-08-18 | Masaaki Igarashi | Stainless steel for high-pressure hydrogen gas, and container and device made of same |
| CN104227265A (en) * | 2014-07-25 | 2014-12-24 | 洛阳双瑞特种合金材料有限公司 | Ultrahigh-intensity all-austenite stainless steel welding wire |
| CN105479035A (en) * | 2015-12-25 | 2016-04-13 | 江苏烁石焊接科技有限公司 | High-nitrogen steel welding wire and manufacturing process thereof |
| CN108526750A (en) * | 2018-04-08 | 2018-09-14 | 中国兵器科学研究院宁波分院 | A kind of high-strength and high ductility high-nitrogen austenitic stainless steel welding wire and preparation method thereof |
-
2019
- 2019-02-20 CN CN201910126054.5A patent/CN109865959A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10166179A (en) * | 1996-12-05 | 1998-06-23 | Kobe Steel Ltd | High mn stainless welding wire for extra low temp. excellent in welding high temp. crack resistance |
| US20050178478A1 (en) * | 2003-03-20 | 2005-08-18 | Masaaki Igarashi | Stainless steel for high-pressure hydrogen gas, and container and device made of same |
| CN104227265A (en) * | 2014-07-25 | 2014-12-24 | 洛阳双瑞特种合金材料有限公司 | Ultrahigh-intensity all-austenite stainless steel welding wire |
| CN105479035A (en) * | 2015-12-25 | 2016-04-13 | 江苏烁石焊接科技有限公司 | High-nitrogen steel welding wire and manufacturing process thereof |
| CN108526750A (en) * | 2018-04-08 | 2018-09-14 | 中国兵器科学研究院宁波分院 | A kind of high-strength and high ductility high-nitrogen austenitic stainless steel welding wire and preparation method thereof |
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