CN103464854A - Welding process of movable cover plate and fixed cover plate of vacuum arc-extinguishing chamber - Google Patents
Welding process of movable cover plate and fixed cover plate of vacuum arc-extinguishing chamber Download PDFInfo
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- CN103464854A CN103464854A CN2013104573845A CN201310457384A CN103464854A CN 103464854 A CN103464854 A CN 103464854A CN 2013104573845 A CN2013104573845 A CN 2013104573845A CN 201310457384 A CN201310457384 A CN 201310457384A CN 103464854 A CN103464854 A CN 103464854A
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- fixed cover
- vacuum interrupter
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Abstract
The invention provides a welding process of a movable cover plate and a fixed cover plate of a vacuum arc-extinguishing chamber. The welding process comprises the steps of A, carrying out deoiling treatment on the movable cover plate and the fixed cover plate; B, placing the movable cover plate and the fixed cover plate in an electropolishing solution for being subjected to surface treatment for 10-15 minutes, and then cleaning; C, placing welding flux at the welding seams and the welding surface of the movable cover plate and the fixed cover plate; D, loading the movable cover plate and the fixed cover plate into a vacuum brazing furnace for brazing; E, afterwards, dropping the temperature to 350-400 DEG C for pure nitrogen cooling or pure argon cooling, and tapping off until the temperature in the furnace is higher than the outside temperature for 15-25 DEG C. The welding process has the advantages that due to the adoption of a chemical electropolishing technology, quality fluctuation points are avoided, so that the cost of burning nickel is reduced, the sewage disposal is relieved, and the production progress is effectively improved.
Description
Technical field
The present invention relates to ceramic vacuum arc-chutes field, be specifically related to a kind of welding procedure of vacuum interrupter sound cover plate.
Background technology
?at present, domestic when producing vacuum interrupter, there is the material of sound cover plate 4J33 in the past can cut down material and changed stainless steel material into.Processed and just can be welded but then the nickel dam that often stainless steel needs to electroplate upper 10 microns left and right through chemical plating method in process of production also will burn nickel, very harsh for the electroplating quality of plated item during this time, easily produce the even fluctuation that causes the vacuum interrupter quality of nickel dam became uneven.
Summary of the invention
Purpose of the present invention is exactly at present domestic when producing vacuum interrupter, has the material of sound cover plate 4J33 in the past can cut down material and has changed stainless steel material into.Processed and just can be welded but then the nickel dam that often stainless steel needs to electroplate upper 10 microns left and right through chemical plating method in process of production also will burn nickel, very harsh for the electroplating quality of plated item during this time, easily produce the even deficiency that causes the fluctuation of vacuum interrupter quality of nickel dam became uneven, and a kind of welding procedure of vacuum interrupter sound cover plate is provided.
Concrete technology of the present invention is as follows:
A, by the processing of being deoiled of the vacuum interrupter sound cover plate of stainless steel material;
B, the vacuum interrupter sound cover plate after processing is put into to electropolishing solution carry out the surface treatment of 10-15 minute, then clean up;
The parts by weight of raw materials proportioning of electropolishing solution is:
Sulfuric acid 25-35 phosphatase 11 5-25 water 45-55;
C, will move cover plate and quiet cover plate is assembled to respectively on vacuum interrupter, at weld seam and the solder side place of moving cover plate and quiet cover plate, put into scolder;
D, the vacuum brazing furnace of packing into carry out soldering, and heating step is as follows:
1) first temperature in stove is risen to 500 ℃, the heating-up time is 90-110 minute, insulation 25-35 minute, and the vacuum of vacuum brazing furnace is better than 0.003 Pascal during this period;
2) then continue to be warming up to 630-660 ℃ in 40-50 minute, insulation 55-65 minute, then continued to be warming up to 750-800 ℃ in 40-50 minute, insulation 180-240 minute, and the vacuum of vacuum brazing furnace is better than 0.0005 Pascal during this period;
3) then continue to be warming up to 815-825 ℃ and vacuum interrupter sound cover plate is welded;
E, be cooled to 350-400 ℃ subsequently, carry out pure nitrogen gas or pure argon cooling, wait for when in stove, temperature is higher than ambient temperature 15-25 ℃, can come out of the stove.
Advantage of the present invention is: take chemical electropolishing technology, just avoid this quality fluctuation point here, thereby also reduced burning nickel cost, alleviated sewage disposal, effectively improved the manufacturing schedule problem.
The specific embodiment
Concrete technology of the present invention is as follows:
A, by the processing of being deoiled of the vacuum interrupter sound cover plate of stainless steel material;
B, the vacuum interrupter sound cover plate after processing is put into to electropolishing solution carry out the surface treatment of 10-15 minute, then clean up;
The parts by weight of raw materials proportioning of electropolishing solution is:
Sulfuric acid 25-35 phosphatase 11 5-25 water 45-55;
C, will move cover plate and quiet cover plate is assembled to respectively on vacuum interrupter, at weld seam and the solder side place of moving cover plate and quiet cover plate, put into scolder;
D, the vacuum brazing furnace of packing into carry out soldering, and heating step is as follows:
1) first temperature in stove is risen to 500 ℃, the heating-up time is 90-110 minute, insulation 25-35 minute, and the vacuum of vacuum brazing furnace is better than 0.003 Pascal during this period;
2) then continue to be warming up to 630-660 ℃ in 40-50 minute, insulation 55-65 minute, then continued to be warming up to 750-800 ℃ in 40-50 minute, insulation 180-240 minute, and the vacuum of vacuum brazing furnace is better than 0.0005 Pascal during this period;
3) then continue to be warming up to 815-825 ℃ and vacuum interrupter sound cover plate is welded;
E, be cooled to 350-400 ℃ subsequently, carry out pure nitrogen gas or pure argon cooling, wait for when in stove, temperature is higher than ambient temperature 15-25 ℃, can come out of the stove.
Claims (1)
1. the welding procedure of a vacuum interrupter sound cover plate is characterized in that concrete technology is as follows:
A, by the processing of being deoiled of the vacuum interrupter sound cover plate of stainless steel material;
B, the vacuum interrupter sound cover plate after processing is put into to electropolishing solution carry out the surface treatment of 10-15 minute, then clean up;
The parts by weight of raw materials proportioning of electropolishing solution is:
Sulfuric acid 25-35 phosphatase 11 5-25 water 45-55;
C, will move cover plate and quiet cover plate is assembled to respectively on vacuum interrupter, at weld seam and the solder side place of moving cover plate and quiet cover plate, put into scolder;
D, the vacuum brazing furnace of packing into carry out soldering, and heating step is as follows:
1) first temperature in stove is risen to 500 ℃, the heating-up time is 90-110 minute, insulation 25-35 minute, and the vacuum of vacuum brazing furnace is better than 0.003 Pascal during this period;
2) then continue to be warming up to 630-660 ℃ in 40-50 minute, insulation 55-65 minute, then continued to be warming up to 750-800 ℃ in 40-50 minute, insulation 180-240 minute, and the vacuum of vacuum brazing furnace is better than 0.0005 Pascal during this period;
3) then continue to be warming up to 815-825 ℃ and vacuum interrupter sound cover plate is welded;
E, be cooled to 350-400 ℃ subsequently, carry out pure nitrogen gas or pure argon cooling, wait for when in stove, temperature is higher than ambient temperature 15-25 ℃, can come out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104573845A CN103464854A (en) | 2013-09-30 | 2013-09-30 | Welding process of movable cover plate and fixed cover plate of vacuum arc-extinguishing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013104573845A CN103464854A (en) | 2013-09-30 | 2013-09-30 | Welding process of movable cover plate and fixed cover plate of vacuum arc-extinguishing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103464854A true CN103464854A (en) | 2013-12-25 |
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| CN2013104573845A Pending CN103464854A (en) | 2013-09-30 | 2013-09-30 | Welding process of movable cover plate and fixed cover plate of vacuum arc-extinguishing chamber |
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| CN (1) | CN103464854A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625278A (en) * | 2013-11-12 | 2015-05-20 | 联合汽车电子有限公司 | Method for manufacturing products by cast components through copper brazing |
| CN111261459A (en) * | 2020-01-22 | 2020-06-09 | 厦门摩尼特智能电气有限公司 | Manufacturing method of arc extinguish chamber of contactor |
| CN114850603A (en) * | 2022-06-20 | 2022-08-05 | 韶山恒升机械工业有限公司 | Welding process and welding device of vacuum furnace |
| CN116913726A (en) * | 2023-09-01 | 2023-10-20 | 武汉飞特电气有限公司 | Vacuum switch tube |
Citations (8)
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|---|---|---|---|---|
| JPS52128858A (en) * | 1976-04-21 | 1977-10-28 | Sutenresu Jiyointo Kk | Method of bonding stainless steel pipe |
| US20080296351A1 (en) * | 2007-05-31 | 2008-12-04 | Mark Crockett | Diffusion bonded fluid flow apparatus useful in semiconductor manufacturing |
| CN101391329A (en) * | 2008-11-05 | 2009-03-25 | 南京工业大学 | Vacuum brazing process for stainless steel plate fin structure |
| CN101696122A (en) * | 2009-11-12 | 2010-04-21 | 哈尔滨工业大学 | Method for preparing abrasion-resistant ceramic lining plate by using active soldering method |
| CN101747074A (en) * | 2008-12-19 | 2010-06-23 | 中国科学院沈阳科学仪器研制中心有限公司 | Method for sealing stainless steel and ceramic |
| CN102179586A (en) * | 2011-03-18 | 2011-09-14 | 北京航空航天大学 | Soldering preparation method for stainless steel laminate type inspirator |
| CN102922230A (en) * | 2012-10-23 | 2013-02-13 | 西安航空动力股份有限公司 | Method for brazing martensitic stainless steel rectifier assembly through vacuum |
| CN103157865A (en) * | 2012-12-24 | 2013-06-19 | 景德镇景光精盛电器有限公司 | Welding technique used for moving and static cover plates of vacuum arc-extinguishing chamber |
-
2013
- 2013-09-30 CN CN2013104573845A patent/CN103464854A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52128858A (en) * | 1976-04-21 | 1977-10-28 | Sutenresu Jiyointo Kk | Method of bonding stainless steel pipe |
| US20080296351A1 (en) * | 2007-05-31 | 2008-12-04 | Mark Crockett | Diffusion bonded fluid flow apparatus useful in semiconductor manufacturing |
| CN101391329A (en) * | 2008-11-05 | 2009-03-25 | 南京工业大学 | Vacuum brazing process for stainless steel plate fin structure |
| CN101747074A (en) * | 2008-12-19 | 2010-06-23 | 中国科学院沈阳科学仪器研制中心有限公司 | Method for sealing stainless steel and ceramic |
| CN101696122A (en) * | 2009-11-12 | 2010-04-21 | 哈尔滨工业大学 | Method for preparing abrasion-resistant ceramic lining plate by using active soldering method |
| CN102179586A (en) * | 2011-03-18 | 2011-09-14 | 北京航空航天大学 | Soldering preparation method for stainless steel laminate type inspirator |
| CN102922230A (en) * | 2012-10-23 | 2013-02-13 | 西安航空动力股份有限公司 | Method for brazing martensitic stainless steel rectifier assembly through vacuum |
| CN103157865A (en) * | 2012-12-24 | 2013-06-19 | 景德镇景光精盛电器有限公司 | Welding technique used for moving and static cover plates of vacuum arc-extinguishing chamber |
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| Title |
|---|
| 曹经倩等: "焊接不锈钢的电化学抛光", 《材料保护》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104625278A (en) * | 2013-11-12 | 2015-05-20 | 联合汽车电子有限公司 | Method for manufacturing products by cast components through copper brazing |
| CN111261459A (en) * | 2020-01-22 | 2020-06-09 | 厦门摩尼特智能电气有限公司 | Manufacturing method of arc extinguish chamber of contactor |
| CN114850603A (en) * | 2022-06-20 | 2022-08-05 | 韶山恒升机械工业有限公司 | Welding process and welding device of vacuum furnace |
| CN116913726A (en) * | 2023-09-01 | 2023-10-20 | 武汉飞特电气有限公司 | Vacuum switch tube |
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Application publication date: 20131225 |