CN1203961C - Flux for argon tungsten arc welding of stainless steel - Google Patents
Flux for argon tungsten arc welding of stainless steel Download PDFInfo
- Publication number
- CN1203961C CN1203961C CN 00131292 CN00131292A CN1203961C CN 1203961 C CN1203961 C CN 1203961C CN 00131292 CN00131292 CN 00131292 CN 00131292 A CN00131292 A CN 00131292A CN 1203961 C CN1203961 C CN 1203961C
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- welding
- flux
- stainless steel
- argon tungsten
- arc welding
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Abstract
The present invention belongs to the welding technology of stainless steel. The welding flux offered by the present invention comprises the components of 50 to 80 wt% of SiO, 2 to 30 wt% of TiO, 2 to 15 wt% of Al2O3, 5 to 25 wt% of Cr2O3, 1 to 10 wt% of CaO, 1 to 10 wt% of MgO and 1 to 10 wt% of MnO. Coating layers formed from the welding flux of the present invention can make electric arcs of argon tungsten arc welding generate strong shrinkage so that the depth of the fusion of welding seams is increased by two to three times, the welding efficiency is enhanced by more than one time, and the welding cost is greatly reduced.
Description
Affiliated technical field
The invention belongs to the solder technology of stainless steel material, relate generally to a kind of flux for argon tungsten arc welding of stainless steel.
Background technology
Existing argon tungsten arc welding of stainless steel belongs to the inert gas-shielded arc welding welding method.Because its protection effect is fine, in argon tungsten-arc welding, do not use solder flux that the metal in the welding pool is further protected basically.When yet existing argon tungsten arc welding of stainless steel welding method is welded, following shortcoming is arranged: 1, the welding bead fusion penetration of single face welding and double face shaping limited (about 3mm), obtainable maximum weld penetration also very limited (about about 4mm), this just causes this welding method welding efficiency low, is usually used in the welding less than the material of 6mm of the single face welding and double face shaping bottoming welding of root pass and thickness.When being used for the welding of thicker material, roll up owing to be used for filling the welding bead quantity of groove, welding cost sharply increases, and welding efficiency is lower, makes that the practicality of this welding method is poorer.2, welding deformation is bigger, owing to adopt the groove welding, welding deformation is difficult to avoid, and welding deformation amount becomes big with the increase of welding bead quantity.3, the fluctuation meeting of the content of the minimal residue element of PPm level makes a difference to the argon tungsten arc welding of stainless steel weld penetration, makes the poor stability of welding procedure especially to be unfavorable for the welding of single face welding and double face shaping.
Summary of the invention
Purpose of the present invention promptly is to propose a kind of flux for argon tungsten arc welding of stainless steel, existing the problems referred to above when welding by using this solder flux to solve existing argon tungsten arc welding of stainless steel.
Flux for argon tungsten arc welding of stainless steel proposed by the invention is made of multiple oxide mixing; The component of solder flux and consumption (percentage by weight) are: SiO
260 TiO
215Al
2O
33 Cr
2O
311 CaO, 2 MgO, 8 MnO 1.
The granularity of solder flux solvent of the present invention takes by weighing by mass percentage greater than 300 orders, with claim component place milling apparatus fully to grind to make it absorption mutually and homogenising, the drying cooling is mixed and made into an amount of acetone or MEK.The coating that solder flux of the present invention forms can make the electric arc of argon tungsten-arc welding that strong the contraction taken place, and makes weld penetration increase by 2～3 times, and the structure property of butt welded seam metal does not have tangible harmful effect simultaneously.After the solder flux that adopts the present invention to propose is brushed coating, when adopting conventional argon arc welding equipment to carry out the butt welding of thick stainless steel materials of 3～8mm or pipe fitting, can adopt the straight flange groove, need not add welding wire, promptly finish the single face welding and double face shaping welding of banjo fixing butt jointing together, and welding deformation minimum (angular deformation of sheet material butt joint is almost nil under the free state), therefore welding efficiency improves more than at least one times, welding cost reduces significantly, Type of Welding is greatly simplified, and is about 1/3 of the conventional argon arc welding adopting double V-groove and add welding wire weld interval.Adopt solder flux of the present invention, can greatly reduce welding deformation simultaneously, eliminate the adverse effect that the content of elements fluctuation is produced.
The specific embodiment
Embodiment:
Flux component and consumption (percentage by weight)
SiO
2 60 TiO
2?15 Al
2O
3?3
Cr
2O
3?11 CaO?2 MgO?8 MnO?1
The granularity of component is greater than 300 orders, place abundant grinding of milling apparatus to make it absorption mutually and homogenising each component of proportional quantity, powder after the homogenising is through after fully oven dry is cooled off, mix in the sealed glass jars of special use with an amount of acetone or MEK, make it to become a kind of pastel with certain viscosity, use during in order to the brushing solder flux, also can be mixed into rarer pastel with volatile acetone or methyl ethyl ketone solvent before the mixture use that is the smalls shape after being mixed.Adopt the brushing pen to dip in during use and get the form of back, brush surperficial skim in advance, the metallic luster degree of being for the treatment of the welding bead surface after coating layer thickness is polished with abundant covering at welding bead to be welded with coating.
Claims (1)
1, a kind of flux for argon tungsten arc welding of stainless steel is characterized in that: the component of solder flux and consumption (percentage by weight) are: SiO
260 TiO
215 Al
2O
33 Cr
2O
311CaO 2 MgO 8 MnO 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131292 CN1203961C (en) | 2000-12-18 | 2000-12-18 | Flux for argon tungsten arc welding of stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00131292 CN1203961C (en) | 2000-12-18 | 2000-12-18 | Flux for argon tungsten arc welding of stainless steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1359782A CN1359782A (en) | 2002-07-24 |
| CN1203961C true CN1203961C (en) | 2005-06-01 |
Family
ID=4594610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00131292 Expired - Fee Related CN1203961C (en) | 2000-12-18 | 2000-12-18 | Flux for argon tungsten arc welding of stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1203961C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101554690B (en) * | 2009-05-13 | 2011-08-17 | 中国钢研科技集团公司 | Fusing agent used for stainless A-TIG welding and using method thereof |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6939413B2 (en) * | 2003-03-24 | 2005-09-06 | Lincoln Global, Inc. | Flux binder system |
| US8624163B2 (en) * | 2005-06-01 | 2014-01-07 | Lincoln Global, Inc. | Modified flux system |
| CN101244497B (en) * | 2007-02-12 | 2010-05-19 | 大连理工大学 | Activator for magnesium alloy welding |
| FR2920681B1 (en) * | 2007-09-10 | 2009-12-04 | Snecma | USE OF AN ACTING FLOW FOR TIG WELDING OF METAL PARTS |
| CN101890561B (en) * | 2010-07-20 | 2012-01-25 | 吉林大学 | Method for improving aluminum alloy MIG welding seam penetration |
| CN104708229B (en) * | 2013-06-05 | 2016-09-14 | 天津大学 | The application in high-power TIG welded seam is protected of the low melting point solder flux |
| CN103302420B (en) * | 2013-06-05 | 2016-04-06 | 天津大学 | A kind of low melting point solder flux being applicable to the protection of high-power TIG welded seam |
| CN104551447B (en) * | 2014-12-26 | 2016-07-06 | 苏州龙腾万里化工科技有限公司 | A kind of stainless steel weld joint back side novel protective agent |
| CN107775213B (en) * | 2017-10-10 | 2019-09-27 | 北京航天新风机械设备有限责任公司 | A kind of almag laser welding activating agent and its application |
| CN111716040B (en) * | 2020-07-02 | 2022-01-11 | 北部湾大学 | Active welding flux for tungsten inert gas argon arc welding of marine steel, and preparation method and use method thereof |
| CN111716039B (en) * | 2020-07-02 | 2022-03-18 | 北部湾大学 | Active flux for tungsten inert gas argon arc welding and preparation method and use method thereof |
| CN114932333B (en) * | 2022-06-07 | 2024-02-23 | 广东瑞迅精密机械有限公司 | Welding process of closed pressure-bearing container |
-
2000
- 2000-12-18 CN CN 00131292 patent/CN1203961C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101554690B (en) * | 2009-05-13 | 2011-08-17 | 中国钢研科技集团公司 | Fusing agent used for stainless A-TIG welding and using method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1359782A (en) | 2002-07-24 |
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| CF01 | Termination of patent right due to non-payment of annual fee |