CN107552924A - A kind of white brilliant weld seam welding - Google Patents
A kind of white brilliant weld seam welding Download PDFInfo
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- CN107552924A CN107552924A CN201710851952.8A CN201710851952A CN107552924A CN 107552924 A CN107552924 A CN 107552924A CN 201710851952 A CN201710851952 A CN 201710851952A CN 107552924 A CN107552924 A CN 107552924A
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- welding
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Abstract
The invention discloses a kind of white brilliant weld seam welding method, it is characterised in that the welding be pulsed argon arc welding, and adjustment welding gun and workpiece angle are 45 80 °, welding gun is from the 2.5mm of workpiece height 1；Control technological parameter simultaneously：The 45A of background current 40, the 56A of pulse current 8, the 53V of voltage 5, the 43Hz of pulse frequency 39, the 7.5L/min of gas flow 5, purity of argon 99.99%, the outspoken 8mm of footpath 5 of porcelain.For white brilliant weld seam welding weld seam crystalline substance light of the present invention without grinding greatly and polishing, weldering line is attractive in appearance, non-oxidation color, without acid wash passivation process, greatlys save postwelding outward appearance processing cost.Also, the welding method heat input of the present invention is small, crystal grain refinement, welding deformation is small.
Description
Technical field
The present invention relates to welding technique field, and in particular to a kind of white brilliant weld seam welding.
Background technology
World War I period, British scientist BLAZER profit have chanced on a kind of still glitter for a long time, without any corrosion
The alloy material of vestige, thus stainless steel appearance.But in fact, BLAZER profit find this stainless steel only contain chromium,
The stainless iron that i.e. we are usually commonly called as, then excellent to be studied by extensive testing machine, the austenitic stainless steel quilt containing chromium, nickel element
Scientists are succeeded in developing, and are widely used in all trades and professions.
Austenitic stainless steel as a kind of material being most widely used in stainless steel field, its Welding Problems also always by
Everybody is of interest, and because its alloying element content is high, linear expansion coefficient is big, austenite is as homogeneous structure, in manufacturing process
Do not produce phase transformation, coarse grains have that protection requires high, heat input is low and cleaning requires during welding.
Existing welding procedure, weld seam is coarse, and big mill and polishing are needed after welding, needs specially treated to carry out acid after welding
Passivation is washed, not environmentally and is consumed big.
The content of the invention
For problems of the prior art, the present invention provides a kind of white brilliant weld joint welding process.This method is a kind of
New welding procedure, it is basic after the completion of weld seam welding by rational welding parameter and operation technique using pulsed argon arc welding method
Without visible deformation, weld appearance non-oxidation color, can be described as " white brilliant welding method ".
Specifically, the present invention provides a kind of white brilliant weld seam welding, and the welding uses pulse argon arc welding machine, adjusts welding gun
With workpiece angle be 45-80 °, welding gun is from workpiece height 1-2.5mm；Control technological parameter simultaneously：Background current 40-45A, pulse
Electric current 8-56A, voltage 5-53V, pulse frequency are 39-43Hz, gas flow 5-7.5L/min, purity of argon 99.99%, porcelain mouth
Diameter 5-8mm.
For said welding method condition, preferably adjust that welding gun with workpiece angle is 50 °, welding gun is from workpiece height 2.5mm；
Control technological parameter simultaneously：Background current 45A, pulse current 56A, voltage 50V, pulse frequency 40Hz, gas flow 7.5L/
The outspoken footpath 6mm of min, purity of argon 99.99%, porcelain.
In addition, in addition to above-mentioned welding parameter, other conditions or parameter are condition or parameter customary in the art.
The welding of the present invention is applied to the stainless steels such as 304L, 316L, 309L, 310L, 409L.
And the welding is applied to thickness of slab 0.2-3.0mm.
The welding can be with all-position welding.
And the solderable downhand welding abutment joint of the welding, T-shaped weld seam or angle welding.
Specifically, welding parameter of the invention is as shown in table 1 below：
Table 1
In addition, currently used common welding parameter is as shown in table 2 below：
Argon arc welding common at present, weld appearance is poor, and its lines is wider, there is oxidation tint, it is therefore desirable to carries out acid blunt
Change processing and remove oxidation tint.
However, white brilliant weld seam welding weld seam crystalline substance light of the present invention is without mill greatly and polishes, white brilliant weldering of the invention
Seam weld connection substantially reduces crystal grain of the mother metal in high-temperature region and grown up, and greatly reduces weld seam molten bath metallic element at high-temperature region
Destroy, metal dilution rate is very low, and grain structure is tiny, and weldering line is attractive in appearance, non-oxidation color, without acid wash passivation process, greatlys save
Postwelding outward appearance processing cost.Also, the welding method heat input of the present invention is small, crystal grain refinement, welding deformation is small.
In addition, the present inventor Mr. Du Huajun, first place is won in welding vocational skills contest in 2013, is joined first
It is welded with and connects contest and just win the championship, and obtains Wuxi City May 1st Labour Medal that the Wuxi City federation of trade unions issues and office of society of people from area issues
" Wuxi City Xishan District technical expert " honorary title, the 7th and certificate of honoring are obtained in " Wuxi Skill Competition ", is being welded
Connect industry and win honor.In addition, Mr. Du Huajun is cited as Jiangsu Province's " May 1st Labour Medal " in April, 2015,
It is cited as Wuxi " my in the eyes of craftsman " great master's honorary title in November, 2016, succeeds in developing within 2017 and looked for from dustbin
Gold, stainless steel rubbish be changed into treasured, manual welding make Shanghai jewel television tower model, obtain lot of domestic and foreign guest and thumb up,
It is cited as " chief technician " in May, 2017, in May, 2017 is cited as national " May 1st Labour Medal " honorary title.
Brief description of the drawings
Fig. 1 is the welding figure of the white brilliant weld seam welding in embodiment.
Fig. 2 is the welding figure of the conventional argon arc welding in comparative example.
Embodiment
Technical solution of the present invention is described in detail with reference to embodiment, but the present invention is not limited to this.
Embodiment
Using pulse argon arc welding machine, adjustment welding gun and workpiece angle are 50 °, welding gun is from workpiece height 2.5mm；
Welded according to parameters described below：Argon arc welding, mother metal austenitic stainless steel 309L, thickness 2mm, fill metal
1.0mm, DC direct current, EN just connect, background current 45A, pulse current 56A, voltage 50V, pulse frequency are 40Hz, gas flow
The outspoken footpath 6mm of 7.5L/min, purity of argon 99.99%, porcelain.
Obtained weld appearance is as shown in figure 1, weld seam is extremely attractive in appearance, it is good also to have been obtained without visible oxidation tint, welding deformation
Good control, and its heat input is smaller.
Comparative example (comparative example)
With DC welder, welded according to parameters described below：Argon arc welding, mother metal austenitic stainless steel 309L, thickness 2mm,
Filling metal 1.0mm, DC direct current, EN just connect, electric current 80A, argon gas protection, gas flow 15L/min.
Obtained weld appearance has oxidation tint and removed, it is necessary to carry out acid passivation processing as shown in Fig. 2 its lines is wider.
Claims (6)
1. a kind of white brilliant weld seam welding, it is characterised in that the welding is pulsed argon arc welding, and adjustment welding gun is with workpiece angle
45-80 °, welding gun is from workpiece height 1-2.5mm；
Control technological parameter simultaneously：Background current 40-45A, pulse current 8-56A, voltage 5-53V, pulse frequency 39-43Hz,
The outspoken footpath 5-8mm of gas flow 5-7.5L/min, purity of argon 99.99%, porcelain.
2. white brilliant weld seam welding according to claim 1, it is characterised in that the welding is pulsed argon arc welding, adjustment
Welding gun and workpiece angle are 50 °, welding gun is from workpiece height 2.5mm；
Control technological parameter simultaneously：Background current 45A, pulse current 56A, voltage 50V, pulse frequency 40Hz, gas flow
The outspoken footpath 6mm of 7.5L/min, purity of argon 99.99%, porcelain.
3. welding according to claim 1 or 2, it is characterised in that suitable for 304L, 316L, 309L, 310L, 409L
Stainless steel.
4. welding according to claim 1 or 2, it is characterised in that the welding is applied to thickness of slab 0.2-3.0mm.
5. welding according to claim 1 or 2, it is characterised in that the welding can be with all-position welding.
6. welding according to claim 1 or 2, it is characterised in that the solderable downhand welding abutment joint of the welding, T-shaped
Weld seam or angle welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710851952.8A CN107552924A (en) | 2017-09-19 | 2017-09-19 | A kind of white brilliant weld seam welding |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710851952.8A CN107552924A (en) | 2017-09-19 | 2017-09-19 | A kind of white brilliant weld seam welding |
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| CN107552924A true CN107552924A (en) | 2018-01-09 |
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| CN201710851952.8A Pending CN107552924A (en) | 2017-09-19 | 2017-09-19 | A kind of white brilliant weld seam welding |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817620A (en) * | 2018-06-30 | 2018-11-16 | 武汉冶钢结构有限责任公司 | The welding method of stainless sheet steel |
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| US4749841A (en) * | 1987-02-02 | 1988-06-07 | Viri Manufacturing, Inc. | Pulsed arc welding method, apparatus and shielding gas composition |
| US6384376B1 (en) * | 1996-11-20 | 2002-05-07 | La Soudure Autogene Francaise | Method and device for pulsed arc welding |
| EP1216780A1 (en) * | 2000-12-21 | 2002-06-26 | L'air Liquide, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude | Method and apparatus for pulse arc welding |
| CN101508053A (en) * | 2009-03-25 | 2009-08-19 | 山东大学 | Welding method of high-nickel alloy and stainless steel dissimilar metal |
| CN102728937A (en) * | 2012-07-06 | 2012-10-17 | 山东大学 | Dissimilar metal welding method of titanium alloy and austenitic stainless steel |
| CN102837107A (en) * | 2012-07-30 | 2012-12-26 | 南京汽轮电机集团泰兴宁兴机械有限公司 | Welding technology for pipe head of 300MW and above high-voltage heater |
| CN104084678A (en) * | 2014-07-25 | 2014-10-08 | 哈电集团（秦皇岛）重型装备有限公司 | Full-position connecting pipe and safety end circular seam welding method achieved through tungsten electrode inert gas arc welding |
-
2017
- 2017-09-19 CN CN201710851952.8A patent/CN107552924A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4749841A (en) * | 1987-02-02 | 1988-06-07 | Viri Manufacturing, Inc. | Pulsed arc welding method, apparatus and shielding gas composition |
| US6384376B1 (en) * | 1996-11-20 | 2002-05-07 | La Soudure Autogene Francaise | Method and device for pulsed arc welding |
| EP1216780A1 (en) * | 2000-12-21 | 2002-06-26 | L'air Liquide, S.A. à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procédés Georges Claude | Method and apparatus for pulse arc welding |
| CN101508053A (en) * | 2009-03-25 | 2009-08-19 | 山东大学 | Welding method of high-nickel alloy and stainless steel dissimilar metal |
| CN102728937A (en) * | 2012-07-06 | 2012-10-17 | 山东大学 | Dissimilar metal welding method of titanium alloy and austenitic stainless steel |
| CN102837107A (en) * | 2012-07-30 | 2012-12-26 | 南京汽轮电机集团泰兴宁兴机械有限公司 | Welding technology for pipe head of 300MW and above high-voltage heater |
| CN104084678A (en) * | 2014-07-25 | 2014-10-08 | 哈电集团（秦皇岛）重型装备有限公司 | Full-position connecting pipe and safety end circular seam welding method achieved through tungsten electrode inert gas arc welding |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817620A (en) * | 2018-06-30 | 2018-11-16 | 武汉冶钢结构有限责任公司 | The welding method of stainless sheet steel |
| CN108817620B (en) * | 2018-06-30 | 2020-09-29 | 武汉一冶钢结构有限责任公司 | Welding method of stainless steel sheet |
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