CN103042282B - Method for brazing diamond drilling tools - Google Patents
Method for brazing diamond drilling tools Download PDFInfo
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- CN103042282B CN103042282B CN201210563350.XA CN201210563350A CN103042282B CN 103042282 B CN103042282 B CN 103042282B CN 201210563350 A CN201210563350 A CN 201210563350A CN 103042282 B CN103042282 B CN 103042282B
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- brazing
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- solder
- pressurized cylinder
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Abstract
The invention discloses a method for brazing diamond drilling tools. The method includes placing a brazing material between a drilling tool bar and a diamond; placing the drilling tool bar and the diamond in a brazing device; electrifying the brazing device to heat up the drilling tool bar and the diamond until the brazing material is melted; and pressurizing the diamond towards the direction of the drilling tool bar after the brazing material is melted so that the diamond can be in contact with the drilling tool bar locally. When applied to production, the method for brazing the diamond drilling tools has the advantages that equipment is simple and is low in manufacturing cost and maintenance cost, a diamond drilling tool with high brazing strength and rigidity can be obtained, the brazing heating time is extremely short, and the brazing machining production efficiency is high.
Description
Technical field
The invention belongs to solder bonding metal welding solder technology field, is a kind of Diamond drill method for welding specifically.
Background technology
Optical fiber contact pins Diamond drill is used to a kind of superhard cutter processing communication optical cable rapid abutting joint ceramic plug, and along with the continuous progress of optical fiber communication technology in recent years, the application of optical fiber rapid abutting joint plug is increasingly extensive, and demand constantly increases.Optical fiber contact pins Diamond drill is wherein a kind of important process tool, and its performance and cost direct relation the cost of optical fiber Quick connector.But for many years the process technology of Diamond drill always block by developed country, the use dependence on import always of product.
Adamantine being fixed with inlays packaging type, welding and splicing.Packaging type needs adamantine major diameter to be wrapped in built-in metal, even if the diamond that this method is fixed is once major part comes out with coming off, for expensive diamond, just can cause huge waste.Cementing method, bond strength is not high, and limits by serviceability temperature, so seldom use on manufacture cutter.Optical fiber contact pins Diamond drill adopts artificial or natural regular octahedron single-crystal diamond to weld with stainless steel base.The mode that diamond adopts parcel to inlay under general case is fixed on matrix and is then processed into required cutter, but require on this cutter cutter and substrate combinating strength good, base plastic distortion is little, and cutter will carry out repeatedly reconditioning, so the mode of inlaying parcel can not be adopted to fix simultaneously.
Adamantine soldering effect is better, but the welding point that will obtain performance splendid is not easy to.Good welding effect needs: 1, welding interior stress is little can not make weld cracking.2, welding point place solder layer is thinner, because such solder mostly is the higher material of plasticity, and micro-modification when blocked up solder layer can cause cutter to use, thus affect cutter life.3, diamond heat time when welding is short, and heating-up temperature is low.Too high and the long heat time can be caused diamond graphitization thus be had a strong impact on cutter result of use.4, diamond location is wanted accurately, and diamond is the material that nature hardness is the highest, is difficult to processing, if location will definitely not make following process difficulty increase, and needs the diamond of larger particle, so can produce very large waste.
Summary of the invention
The object of the invention is, for above-mentioned deficiency of the prior art, to provide a kind of Diamond drill method for welding, make it possible to general method for welding, bulky diamond is welded on stainless steel base.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of Diamond drill method for welding, it is characterized in that, the method comprises the following steps:
1) between drill bar and diamond, place solder, be then placed on brazing device;
2) to brazing device energising, solder fusing is heated to;
3) after solder fusing, diamond is pressurizeed to drill bar direction, make diamond localized contact to drill bar;
4) unclamp brazing device after cooling, take out Diamond drill, complete Diamond drill soldering.
In Diamond drill method for welding of the present invention, the component of preferred solder used and percentage by weight are: Ag60-71%, Cu20-35%, Ti0.5%-1.5%, Si5%-8%.
In Diamond drill method for welding of the present invention, step 2) mode of described energising can be alternating current, high-frequency pulse current, DC current or multiple superimposed current.
Brazing device in Diamond drill method for welding of the present invention can like this: comprise pressurized cylinder, clamping cylinder, pressure rod, heating electrode and graphite electrode, described pressurized cylinder and clamping cylinder are fixed on same base, pressurized cylinder is erection position, clamping cylinder is horizontal level, heating electrode is separately fixed at the stiff end of pressurized cylinder and the movable end of clamping cylinder, by the sliding end of slip clamping cylinder, two parts heating electrode can match described graphite electrode and the Diamond drill knife bar of being fixedly clamped, described pressure rod is fixed on the movable end of pressurized cylinder, the movable end position of adjustment pressurized cylinder, pressure rod can pressurize to described graphite electrode, the heating electrode of graphite electrode of being fixedly clamped is separated with insulator with pressure rod with the junction of the pressurized cylinder be connected or clamping cylinder.
Carry out Welding with Diamond drill method for welding of the present invention, compole short 5-20S during weld heating, want short many, so diamond can not graphitization compared with the heat time of vacuum brazing 30-100Min.Owing to having electric current directly by welding region, the pulse current of applying can make to produce micro-electric arc between solder grain, destroys solder surface oxide-film, improves solder active, improves welding strength of welding seam.Customized parameter is many, can realize multiple welding procedure.Electric current can apply alternating current, high-frequency pulse current, DC current or multiple superimposed current, improves the usable range of equipment.Diamond can have external adjustable pressure to suppress, and the thickness of weld seam solder can regulate.Intensity and the rigidity of joint are greatly improved.
For improving solder yield, diamond position can be controlled by controlling moulding pressure, thus realizing higher solder yield.
When Diamond drill method for welding of the present invention carries out Welding, the every part of short about 30-50S welding interval, drastically increases the production efficiency of soldering processing.
Compared with vacuum brazing equipment, the disposable input of Diamond drill method for welding of the present invention is little, and equipment maintenance cost is low.
The present invention has following outstanding beneficial effect: the simple cost of equipment is low, maintenance cost is low; The Diamond drill of good weld strength and rigidity can be obtained; During weld heating, compole is short; Soldering processing efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of brazing device used in the present invention.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
Embodiment 1:
Solder is placed between diamond drill machine knife bar and diamond, the component of solder and percentage by weight are: Ag60%, Cu35%, Ti1.5%, Si3.5%, brazing device assembles knife bar and electrode, logical direct current is heated to solder fusing, after solder fusing to diamond to drill bar direction Quick-pressing, make diamond localized contact to drill bar, heating terminates slow cooling cutter.
Embodiment 2:
Solder is placed between diamond drill machine knife bar and diamond, the component of solder and percentage by weight are: Ag71%, Cu23.5%, Ti0.5%, Si5%, brazing device assembles knife bar and electrode, indirect current is heated to solder fusing, after solder fusing to diamond to drill bar direction Quick-pressing, make diamond localized contact to drill bar, heating terminates slow cooling cutter.
Embodiment 3:
Solder is placed between diamond drill machine knife bar and diamond, the component of solder and percentage by weight are: Ag71%, Cu20%, Ti1%, Si8%, brazing device assembles knife bar and electrode, logical high-frequency electrical pulses is heated to solder fusing, after solder fusing to diamond to drill bar direction Quick-pressing, make diamond localized contact to drill bar, heating terminates slow cooling cutter.
Be more than preferred embodiment of the present invention, all changes done according to technical solution of the present invention, when the function produced does not exceed the scope of technical solution of the present invention, all belong to protection scope of the present invention.
Claims (3)
1. a Diamond drill method for welding, is characterized in that, the method comprises the following steps:
1) between drill bar and diamond, place solder, be then placed on brazing device;
2) to brazing device energising, solder fusing is heated to;
3) after solder fusing, diamond is pressurizeed to drill bar direction, make diamond localized contact to drill bar;
4) unclamp brazing device after cooling, take out Diamond drill, complete Diamond drill soldering;
wherein,brazing jig described in step 1) comprises pressurized cylinder clamping cylinder, pressure rod, heating electrode and graphite electrode, described pressurized cylinder and clamping cylinder are fixed on same base, pressurized cylinder is erection position, clamping cylinder is horizontal level, heating electrode is separately fixed at the stiff end of pressurized cylinder and the movable end of clamping cylinder, by the sliding end of slip clamping cylinder, two parts heating electrode can match described graphite electrode and the Diamond drill knife bar of being fixedly clamped, described pressure rod is fixed on the movable end of pressurized cylinder, the movable end position of adjustment pressurized cylinder, pressure rod can pressurize to described graphite electrode, the heating electrode of graphite electrode of being fixedly clamped is separated with insulator with pressure rod with the junction of the pressurized cylinder be connected or clamping cylinder.
2. Diamond drill method for welding according to claim 1, is characterized in that: solder compositions described in step 1) and percentage by weight are: Ag60-71%, Cu20-35%, Ti0.5%-1.5%, Si5%-8%.
3. Diamond drill method for welding according to claim 1, is characterized in that, step 2) mode of described energising can be alternating current, high-frequency pulse current, DC current or multiple superimposed current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563350.XA CN103042282B (en) | 2012-12-24 | 2012-12-24 | Method for brazing diamond drilling tools |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210563350.XA CN103042282B (en) | 2012-12-24 | 2012-12-24 | Method for brazing diamond drilling tools |
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| Publication Number | Publication Date |
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| CN103042282A CN103042282A (en) | 2013-04-17 |
| CN103042282B true CN103042282B (en) | 2015-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210563350.XA Active CN103042282B (en) | 2012-12-24 | 2012-12-24 | Method for brazing diamond drilling tools |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104128783B (en) * | 2014-07-17 | 2016-08-24 | 哈尔滨工业大学 | A kind of manufacture method of the micro-milling cutter of single point diamond |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193784Y (en) * | 1994-05-12 | 1995-04-05 | 熊家寅 | Resistance soldering machine for diamond cutter and saw blades |
| CN201012426Y (en) * | 2007-01-22 | 2008-01-30 | 宁波新州焊接设备有限公司 | Butt welding machine |
| CN101382072A (en) * | 2008-10-27 | 2009-03-11 | 王春磊 | Diamond cast-in pick and making process thereof |
| CN101980810A (en) * | 2008-03-31 | 2011-02-23 | 独立行政法人产业技术综合研究所 | Joint product |
| CN102689108A (en) * | 2012-06-20 | 2012-09-26 | 哈尔滨工业大学 | Composite brazing material for connecting Si3N4 ceramic and 42CrMo steel and brazing method by using same |
| CN102712478A (en) * | 2010-08-19 | 2012-10-03 | 住友电气工业株式会社 | Diamond polycrystal and process for production thereof |
-
2012
- 2012-12-24 CN CN201210563350.XA patent/CN103042282B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193784Y (en) * | 1994-05-12 | 1995-04-05 | 熊家寅 | Resistance soldering machine for diamond cutter and saw blades |
| CN201012426Y (en) * | 2007-01-22 | 2008-01-30 | 宁波新州焊接设备有限公司 | Butt welding machine |
| CN101980810A (en) * | 2008-03-31 | 2011-02-23 | 独立行政法人产业技术综合研究所 | Joint product |
| CN101382072A (en) * | 2008-10-27 | 2009-03-11 | 王春磊 | Diamond cast-in pick and making process thereof |
| CN102712478A (en) * | 2010-08-19 | 2012-10-03 | 住友电气工业株式会社 | Diamond polycrystal and process for production thereof |
| CN102689108A (en) * | 2012-06-20 | 2012-09-26 | 哈尔滨工业大学 | Composite brazing material for connecting Si3N4 ceramic and 42CrMo steel and brazing method by using same |
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| CN103042282A (en) | 2013-04-17 |
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Denomination of invention: Method for brazing diamond drilling tools Effective date of registration: 20181122 Granted publication date: 20150415 Pledgee: Bank of China Limited Zhenjiang Runzhou Branch Pledgor: Zhenjiang Dayou Hard Material Co., Ltd. Registration number: 2018320000327 |
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Date of cancellation: 20200806 Granted publication date: 20150415 Pledgee: Bank of China Limited Zhenjiang Runzhou Branch Pledgor: ZHENJIANG DAYOU HARD MATERIAL Co.,Ltd. Registration number: 2018320000327 |