CN102294528A - Process for carrying out entire high-frequency brazing by welding jig - Google Patents
Process for carrying out entire high-frequency brazing by welding jig Download PDFInfo
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- CN102294528A CN102294528A CN2011102307453A CN201110230745A CN102294528A CN 102294528 A CN102294528 A CN 102294528A CN 2011102307453 A CN2011102307453 A CN 2011102307453A CN 201110230745 A CN201110230745 A CN 201110230745A CN 102294528 A CN102294528 A CN 102294528A
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- lower platen
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Abstract
The invention relates to a process for carrying out entire high-frequency brazing by a welding jig, which comprises the preparation of a matrix and the preparation of diamond gear blocks. Uniformly stirred silver based brazing filler metal and welding adjuvants are uniformly coated on surfaces to be brazed of the diamond gear blocks, then a millstone matrix and the diamond gear blocks are positioned and fixed by the welding jig, and finally the millstone matrix and the diamond gear blocks are arranged in a vacuum brazing furnace to be brazed. The process for carrying out entire high-frequency brazing by the welding jig overcomes the technical problems of complex manufacturing process, low production efficiency, unstable quality and high production cost of the diamond millstone in the prior art, and on the premise of ensuring the welding quality to be stable, the brazing efficiency is greatly improved, and the production cost is effectively reduced.
Description
Technical field
The present invention relates to a kind of high frequency brazing technology, more particularly, the present invention relates to a kind of technology of utilizing weld jig to carry out whole high frequency brazing.
Background technology
Diamond disk has been widely used in the various aspects in grinding field.Diamond disk is the effective tool of grinding stone material, carbide alloy, glass, the contour crisp material of pottery.Diamond disk is made up of diamond segment and matrix, in the manufacturing process diamond segment and matrix is prepared respectively, and then adopts the process of welding that diamond segment is fixed on the matrix.In the prior art, the method that generally adopts is diamond segment sintering in vacuum hotpressing equipment; The connection technology of cutter head and matrix adopts high-frequency induction brazing.
Soldering is one of three big chief components of modern welding technology.Conventional soldering is to adopt the solder lower than parent fusion temperature, and operating temperature is taked to be lower than the mother metal solidus and a kind of solder technology of being higher than the solder liquidus curve.The solder thawing remains solid-state for the liquid state mother metal during soldering, liquid solder is wetting on the gap of mother metal or surface, capillary flow, fill, sprawl, interact with mother metal (dissolving, diffusion or produce intermetallic compound), cooled and solidified form firm joint, thereby mother metal is linked together.In order to give full play to the advantage of diamond tool more, the hold abrasive particle that overcomes plating diamond tool simultaneously defective such as easily come off at first begins soldering is applied to the manufacturing of diamond tool abroad in the eighties of last century late nineteen eighties.High temperature brazing can realize chemical metallurgy combination on diamond, brazing alloy material and the metallic matrix interface, has higher binding strength, adamantine effective rate of utilization height, life-span is long, simultaneously firm chemical metallurgy combination makes the work that brazed diamond tool is can be under high-speed condition stable.
The factor that influences the brazed diamond tool quality mainly contains mode of heating, solder and brazing temperature.Mainly contain salt bath brazing, laser braze welding and high-frequency induction brazing for what mode of heating was used at present.
High-frequency induction brazing heating-up temperature height, and be contactless heating, the efficiency of heating surface is fast at a high speed, and easy control of temperature; Can local heat, realize control automatically easily; Operating environment is good, and is almost pollution-free.Required time of high-frequency induction heating is between LASER HEATING and resistance heated, generally effect in 30 seconds, this time ratio has reduced adamantine fire damage degree preferably, also provides the enough reaction time for the interface generates continuous transition zone simultaneously, and the soldering effect is comparatively desirable.This kind mode of heating is used the most general at present.
In the manufacturing of diamond disk, when producing multi-block type high-frequency welding mill, mostly adopt the welding method of single tooth piece at present, under this method production efficiency, and brazing quality is difficult to guarantee.In order to enhance productivity, we have developed integral solder technology, and operating efficiency can increase work efficiency 50% with respect to traditional soldering processes.But when adopting integral braze-welded technology, to having relatively high expectations of brazing jig.Adopt traditional weld jig, in integral braze-welded process, owing to be subjected to the influence of high temperature, fixed screw gets loose easily; Cause when integral solder, clamping force of each joint piece is difficult to be consistent, and can not be close to and produces rosin joint thereby cause saving piece (tooth piece) easily.
Summary of the invention
Adopt single tooth block brazing welding efficiency low in order to solve, welding quality instability, the inconsistent defective of clamping force.The present inventor has carried out creationary innovation to weld jig of the prior art, provide a kind of joint piece simple in structure, convenient to install and can guarantee the weld jig of welding quality stable, and developed a kind of technology of utilizing weld jig to carry out whole high frequency brazing on this basis, this technology has the high and welding quality stable reliable characteristics of production efficiency.
In order to solve the problems of the technologies described above, the present invention has adopted following technical scheme:
A kind of technology of utilizing weld jig to carry out whole high frequency brazing, getting the silver-base solder and the welding auxiliary agent that have stirred evenly spreads upon on the surface to be brazed of diamond tooth block, utilize weld jig that mill matrix and diamond tooth block are positioned and fix, put it into then and carry out soldering in the vacuum brazing furnace, it is characterized in that described weld jig comprises top board and lower platen, top board and lower platen have the center positioning hole of coaxial setting, lower platen is provided with tooth piece locating hole, the lower surface of lower platen is provided with tooth piece mounting groove, tooth piece positioning screw and tooth piece holddown spring are installed between top board and the lower platen, and the number of described tooth piece positioning screw equates with the number of the diamond tooth block of the required installation of mill matrix.Preferably, described lower platen also is provided with the assist location hole, and described assist location hole evenly is provided with along donut, and the number in described assist location hole is 3.
Preferably, described top board and lower platen are disc, and the equal diameters of top board and lower platen.
Preferably, described tooth piece mounting groove evenly is provided with along donut, and the lower surface of lower platen is provided with two toothrow piece mounting grooves.
Preferably, the profile of described tooth piece mounting groove is identical with the shape of cross section of tooth piece.
Preferably, described silver-base solder is based on to test repeatedly and put into practice and draws, and is specially adapted to integral braze-welded technology of the present invention.Solder plasticity of the present invention is good, shock-resistant; The high temperature creep-resisting ability is strong, and welding performance is reliable and stable, can guarantee that each tooth block welding adhesive property keeps basically identical when integral braze-welded.The proportioning of silver-base solder of the present invention is Ag:35wt%, Cu:25wt%, Zn:18wt%, Ni:12wt%, Cd:2wt%, Mn:8wt%; The proportioning of welding auxiliary agent is: ZnCl
2: 35wt%, NH
4Cl:35wt%, BaCl
2: 10wt%, CaF
2: 10wt%, borax: 10wt%.Silver-base solder is 3 with the interpolation ratio of welding auxiliary agent: 1-5: 1.Using the purpose of welding auxiliary agent among the present invention is the oxide that is used to remove matrix, cutter head and solder surface, for liquid solder sprawling with solder on matrix, cutter head created necessary condition to the cutter head infiltration; And can improve solder wetting to faying face, promote solder to flow, fill the gap, form the brazed seam of smooth densification.
Preferably, described silver-base solder adopts the atomized powder method to prepare, and the average grain diameter of silver-base solder powder is 10-200um.
Preferably, the technological parameter of described soldering is: brazing temperature is 690-715 ℃, and the holding time is 13-16s, and vacuum is 0.01Pa.
The operation principle of weld jig of the present invention is as follows: weld jig of the present invention mainly is made of elements such as top board, lower platen, tooth piece positioning screw and tooth piece holddown springs.In the time of welding, workpiece (being the diamond disc matrix) is placed on the workbench of rotation, on workpiece matrix surface to be brazed, place silver solder and scaling powder, the tooth piece is set thereon again, lower platen with weld jig is placed on the tooth piece then, and making the tooth piece overlap with tooth piece locating slot, the center positioning hole that top board and lower platen are coaxial and the center-aligned of diamond disc matrix utilize the centralized positioning screw rod to make diamond disc be fixed on the workbench of rotation; Then the tooth piece positioning screw on the anchor clamps is arranged on each tooth piece, and the spring hitch that reverses on the holddown spring makes diamond disc matrix and tooth piece be fastenedly connected, put into then on the ratio-frequency welding frame that has rotating disk and weld.
Weld jig of the present invention is simple in structure, easy to use, and in high-temperature soldering, the spring expanded by heating can make to remain between the solder side of tooth piece and matrix to be fastenedly connected, and can not produce loosening, as rosin joint can not occur phenomenon.
Adopt weld jig of the present invention to carry out the technology of whole high frequency brazing, diamond disk complex manufacturing technology in the prior art, production efficiency is low, quality is unstable and production cost is high technical problem have been overcome, under the prerequisite that guarantees welding quality stable, also significantly improve the operating efficiency of soldering, effectively reduced production cost.The diamond disk weld strength height, stable performance, the long service life that adopt technology of the present invention to make.
Description of drawings
Fig. 1: the block diagram of the weld jig of one embodiment of the invention.
Fig. 2: the parts assembling schematic diagram of the weld jig of one embodiment of the invention.
The specific embodiment
Following the present invention will the present invention will be further explained and explanation with specific embodiment in conjunction with the accompanying drawings.The applicant is that embodiment and accompanying drawing only are in order to further specify technical scheme of the present invention, it must not to be interpreted as the restriction to the invention protection domain what this need declare.
Referring to Fig. 1-2 is the block diagram and the parts assembling schematic diagram of the weld jig of one embodiment of the invention.By Fig. 1-2 as can be seen, the weld jig of present embodiment, comprise disc top board (1) and disc lower platen (2), top board (1) and lower platen (2) all have the center positioning hole (3) of coaxial setting, lower platen (2) is provided with tooth piece locating hole (21), the lower surface of lower platen (2) is provided with tooth piece mounting groove (22), it is characterized in that mounting teeth piece positioning screw (5) and tooth piece holddown spring (6) between top board (1) and the lower platen (2); Described lower platen also evenly is provided with 3 assist location holes (4) along donut; The equal diameters of top board (1) and lower platen (2) wherein; Described tooth piece mounting groove (22) evenly is provided with along donut, and the lower surface of lower platen (2) is provided with two toothrow piece mounting grooves (22); The number of described positioning screw (5) equates with the tooth piece number of diamond disk; And the profile of described tooth piece mounting groove (22) is identical with the shape of cross section of tooth piece.
The technology of present embodiment, getting the silver-base solder and the welding auxiliary agent that have stirred evenly spreads upon on the surface to be brazed of diamond tooth block, utilize embodiment 1 disclosed weld jig that mill matrix and diamond tooth block are positioned and fix then, put it into then and carry out soldering in the vacuum brazing furnace; Wherein the proportioning of silver-base solder is Ag:35wt%, Cu:25wt%, Zn:18wt%, Ni:12wt%, Cd:2wt%, Mn:8wt%; The proportioning of welding auxiliary agent is: ZnCl
2: 35wt%, NH
4Cl:35wt%, BaCl
2: 10wt%, CaF
2: 10wt%, borax: 10wt%; Silver-base solder is 3 with the interpolation ratio of welding auxiliary agent: 1-5: 1; The average grain diameter of silver-base solder powder is 10-200um; The technological parameter of soldering is: brazing temperature is 690-715 ℃, and the holding time is 13-16s, and vacuum is 0.01Pa.
The above; it only is preferred embodiment of the present invention; can not be interpreted as limiting scope of the present invention with this, the embodiment of all distortion of being made in the claimed scope of claims of the present invention that is equal to and change is all in the scope of protection of present invention.
Claims (10)
1. technology of utilizing weld jig to carry out whole high frequency brazing, getting the silver-base solder and the welding auxiliary agent that have stirred evenly spreads upon on the surface to be brazed of diamond tooth block, utilize weld jig that mill matrix and diamond tooth block are positioned and fix, put it into then and carry out soldering in the vacuum brazing furnace, it is characterized in that described weld jig comprises top board and lower platen, top board and lower platen have the center positioning hole of coaxial setting, lower platen is provided with tooth piece locating hole, the lower surface of lower platen is provided with tooth piece mounting groove, tooth piece positioning screw and tooth piece holddown spring are installed between top board and the lower platen, and the number of described tooth piece positioning screw equates with the number of the diamond tooth block of the required installation of mill matrix.
2. technology according to claim 1 is characterized in that described disc lower platen also is provided with the assist location hole, and described assist location hole evenly is provided with along donut.
3. technology according to claim 2, the number that it is characterized in that described assist location hole is 3.
4. technology according to claim 1 is characterized in that described tooth piece mounting groove evenly is provided with along concentric circles.
5. technology according to claim 4 is characterized in that the lower surface of described lower platen is provided with two toothrow piece mounting grooves.
6. technology according to claim 1 is characterized in that the profile of described tooth piece mounting groove is identical with the shape of cross section of tooth piece.
7. technology according to claim 1 is characterized in that described top board and lower platen are disc, and the equal diameters of top board and lower platen.
8. technology according to claim 1 is characterized in that described silver-base solder proportioning is Ag:35wt%, Cu:25wt%, Zn:18wt%, Ni:12wt%, Cd:2wt%, Mn:8wt%; The proportioning of welding auxiliary agent is: ZnCl
2: 35wt%, NH
4Cl:35wt%, BaCl
2: 10wt%, CaF
2: 10wt%, borax: 10wt%; Silver-base solder is 3 with the interpolation ratio of welding auxiliary agent: 1-5: 1.
9. technology according to claim 8 is characterized in that described silver-base solder adopts the atomized powder method to prepare, and the average grain diameter of silver-base solder powder is 10-200um.
10. technology according to claim 8, it is characterized in that the technological parameter of soldering is: brazing temperature is 690-715 ℃, and the holding time is 13-16s, and vacuum is 0.01Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110230745 CN102294528B (en) | 2011-08-12 | 2011-08-12 | Process for carrying out entire high-frequency brazing by welding jig |
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|---|---|---|---|
| CN 201110230745 CN102294528B (en) | 2011-08-12 | 2011-08-12 | Process for carrying out entire high-frequency brazing by welding jig |
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| CN102294528A true CN102294528A (en) | 2011-12-28 |
| CN102294528B CN102294528B (en) | 2013-05-22 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699593A (en) * | 2012-05-16 | 2012-10-03 | 安徽华东光电技术研究所 | Welding fixture for diffusion welding of dissimilar metal and welding method thereof |
| CN104439592A (en) * | 2014-11-05 | 2015-03-25 | 株洲硬质合金集团有限公司 | Technology for welding cylindrical stainless steel part on long-strip-shaped hard alloy thin-wall piece |
| CN103551701B (en) * | 2013-11-15 | 2015-05-27 | 哈尔滨工业大学 | Fixture for brazing zirconia ceramic/stainless steel fixing tong head of medical anastomat and brazing method |
| CN106925858A (en) * | 2017-03-06 | 2017-07-07 | 无锡格林沃科技有限公司 | A kind of high-frequency gas protect soldering oven and its method of work |
| CN108253652A (en) * | 2018-01-10 | 2018-07-06 | 中国科学院上海技术物理研究所 | A kind of Split type welded hot end heat exchanger of coaxial type pulse pipe refrigerator |
| CN109304559A (en) * | 2017-07-29 | 2019-02-05 | 安徽华众焊业有限公司 | A kind of silver-base solder containing cadmium |
| CN109570685A (en) * | 2019-01-31 | 2019-04-05 | 台州市圣西亚金刚石设备有限公司 | Mill welder |
| CN109604758A (en) * | 2019-01-14 | 2019-04-12 | 中国电子科技集团公司第三十八研究所 | A kind of soldering processes of Copper-Aluminum compound liquid cooled module |
| CN110734298A (en) * | 2018-12-31 | 2020-01-31 | 深圳硅基仿生科技有限公司 | Brazing structure of ceramic and metal |
| CN111001891A (en) * | 2019-10-30 | 2020-04-14 | 合肥科聚低温技术有限公司 | Heat exchanger and room temperature copper head welding tool and welding process |
| CN109570685B (en) * | 2019-01-31 | 2024-05-03 | 台州市圣西亚金刚石设备有限公司 | Millstone welding device |
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| JP2005059071A (en) * | 2003-08-15 | 2005-03-10 | Yyl:Kk | Machining method and device using machining-beam |
| CN201415315Y (en) * | 2009-04-17 | 2010-03-03 | 上海钻圣和新材料科技有限公司 | Laser welding clamp for diamond thin-walled drill head |
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Patent Citations (5)
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| JPS57199561A (en) * | 1981-05-29 | 1982-12-07 | Yutaka Awata | Production of abrasion resistant jig tool |
| CN1018342B (en) * | 1990-06-14 | 1992-09-23 | 国家建筑材料工业局人工晶体研究所 | Soldering flux and soldering paste diamond tool |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699593B (en) * | 2012-05-16 | 2015-04-22 | 安徽华东光电技术研究所 | Welding fixture for diffusion welding of dissimilar metal and welding method thereof |
| CN102699593A (en) * | 2012-05-16 | 2012-10-03 | 安徽华东光电技术研究所 | Welding fixture for diffusion welding of dissimilar metal and welding method thereof |
| CN103551701B (en) * | 2013-11-15 | 2015-05-27 | 哈尔滨工业大学 | Fixture for brazing zirconia ceramic/stainless steel fixing tong head of medical anastomat and brazing method |
| CN104439592A (en) * | 2014-11-05 | 2015-03-25 | 株洲硬质合金集团有限公司 | Technology for welding cylindrical stainless steel part on long-strip-shaped hard alloy thin-wall piece |
| CN104439592B (en) * | 2014-11-05 | 2016-04-20 | 株洲硬质合金集团有限公司 | The technique of soldering stainless steel cylindrical part on hard alloy strip thin-wall part |
| CN106925858A (en) * | 2017-03-06 | 2017-07-07 | 无锡格林沃科技有限公司 | A kind of high-frequency gas protect soldering oven and its method of work |
| CN109304559A (en) * | 2017-07-29 | 2019-02-05 | 安徽华众焊业有限公司 | A kind of silver-base solder containing cadmium |
| CN108253652A (en) * | 2018-01-10 | 2018-07-06 | 中国科学院上海技术物理研究所 | A kind of Split type welded hot end heat exchanger of coaxial type pulse pipe refrigerator |
| CN110734298A (en) * | 2018-12-31 | 2020-01-31 | 深圳硅基仿生科技有限公司 | Brazing structure of ceramic and metal |
| CN109604758A (en) * | 2019-01-14 | 2019-04-12 | 中国电子科技集团公司第三十八研究所 | A kind of soldering processes of Copper-Aluminum compound liquid cooled module |
| CN109604758B (en) * | 2019-01-14 | 2020-11-10 | 中国电子科技集团公司第三十八研究所 | Brazing process of copper-aluminum composite liquid cooling assembly |
| CN109570685A (en) * | 2019-01-31 | 2019-04-05 | 台州市圣西亚金刚石设备有限公司 | Mill welder |
| CN109570685B (en) * | 2019-01-31 | 2024-05-03 | 台州市圣西亚金刚石设备有限公司 | Millstone welding device |
| CN111001891A (en) * | 2019-10-30 | 2020-04-14 | 合肥科聚低温技术有限公司 | Heat exchanger and room temperature copper head welding tool and welding process |
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