CN1644319A - Manufacture of single-layer diamond grinder - Google Patents
Manufacture of single-layer diamond grinder Download PDFInfo
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- CN1644319A CN1644319A CN 200410015234 CN200410015234A CN1644319A CN 1644319 A CN1644319 A CN 1644319A CN 200410015234 CN200410015234 CN 200410015234 CN 200410015234 A CN200410015234 A CN 200410015234A CN 1644319 A CN1644319 A CN 1644319A
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- diamond
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- abrasive
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Abstract
A technology for manufacturing the grinding tool with single diamond layer includes such steps as putting soldering sheet and solder on a main body of said grinding tool, arranging a layer of diamond particles, spreading metal powder in the gaps between diamond particles, covering a protecting material or filling protective gas, and high-frequency soldering.
Description
Technical field
The present invention relates to a kind of manufacture method of diamond tool; Relate in particular to a kind of diamond single layer abrasive tool fabrication method.
Background technology
Grinding tool wearability and the working (machining) efficiency made by superhard materials such as diamonds are the highest, have been widely used in nearly all metal processing and nonmetal processing industry.Tool made of superhard material mainly is with the single or multiple lift superhard material at present, be cemented on the tool base with bond (metal, pottery, resin etc.), or individual layer is electroplated at matrix surface.In in conjunction with formulation superhard material abrasive grain abrasive tools because bond can not firmly control the superhard material particle from start to finish, cause superhard material except that broken, mostly come off highly the time less than particle diameter 1/2 in exposure fractures.Superhard material has in fact only been brought into play 20% of its task performance, and 80% expensive superhard material is difficult to be recycled after coming off.Electroplate the single layer of super hard abrasive particle grinding wheel, preparation is easy, and it is good to go out sword, and cutting power is strong, need not finishing, and it is the most convenient to use.These advantages make it occupy sizable share in the production of superhard material abrasive particle grinding wheel with in using always, at a high speed particularly in the superhigh speed grinding processing, in occupation of incontrovertible leading position.
Electroplating the most outstanding defective of individual layer emery wheel is that the electroplating abrasion wheel bond strength is not high.On the interface of coated metal and matrix and abrasive material owing to do not exist firm chemical metallurgy to combine, abrasive material just is embedded in the coated metal by the mechanical type embedding, thereby hold is little, in the heavier high efficient grinding operation of load, emery wheel comes off because of abrasive particle easily or the coating flaking causes global failure.In order to increase hold, must increase thickness of coating, reduce the exposed height of abrasive particle, but will cause chip space to reduce like this, emery wheel stops up easily.More seriously, use electroplating abrasion wheel can bring the serious environmental pollution problem undoubtedly, be unfavorable for the sustainable development of national economy.
For giving full play to the advantage of monolayer superabrasive grinding wheel, substitute novel individual layer high temperature brazing super hard abrasive (diamond and the CBN) emery wheel of electroplating technology with high temperature brazing, attempt on combination interface, to realize the chemical metallurgy combination, fundamentally improve abrasive material, bond (brazing alloy material), the triangular bond strength of matrix, interface bond strength is high, the exposed height of abrasive material can reach the 70%-80% of abrasive particle height, chip space between abrasive particle is big, can bear bigger load in the high speed, high efficiency grinding.
The method that open report uses method for brazing to make mono-layer diamond tool mainly contains following several.A kind of manufacturing of dentist's instrument has used pasty state In-Cu-Ag-Ti binder alloy to carry out soldering (.Brazing diamond grits onto a steel substrate using copperalloys as the filler metals.J.Material Engineering and Performance.5 (6) .1996:761-7 such as S.M.Chen) in vacuum drying oven; The method that adopts the Ag-Cu alloy between diamond abrasive grain, to sprinkle chromium powder simultaneously as solder also be used to make grinding tool (Wu Zhibin etc., the existing problem and the countermeasure thereof of soldering mono-layer diamond emery wheel, welding journal .22 (3), 2001:36-38).
U.S.Patent No.4,018,576 (J.T.Lower. etc., 1977) have openly been reported Cr-B-Si-Fe-Ni base alloy powder mixing solder " brush " have been arrived the various tool matrix surface, by sieve diamond abrasive grain are sprayed onto on the solder before solder layer is done.In the dry hydrogen atmosphere, use oxygen (second) alkynes welding torch flame-spraying last layer Ni-Cr-Fe-Si-B alloy-layer on steel matrix, and then induction brazing in argon atmosphere, this method be one of existing general technology (for example: .Induction brazing of diamond with Ni-Cr hard facing alloy under argonatmosphere.Surface and Coating Technology.45 such as A.K.Chattopadhyay, 1990:293-298).Directly Ni-Cr alloy sheet or Ni-Cr alloyed powder are placed on the steel matrix, utilize high-frequency induction with diamond brazing on steel matrix and the also open report of strong bonded.U.S.Patent No.603964 (Sung C.M etc., 2000) and some publish paper (for example: Xiao Bing etc., the experimental study of Ni-Cr alloy vacuum induction soldering mono-layer diamond emery wheel. tool technique .34 (10) .2000:3-5; Yao Zhengjun etc., the research of Ni-Cr alloy A r gas shiled furnace brazing skive. Chinese mechanical engineering .12 (8) .2001:956-958 etc.) reported and adopted nickel-based solder or active solder to carry out the soldering of diamond tool.These method temperature height, soldering require to carry out in a vacuum or in the inert protective gas, and diamond intensity is had damage, and adamantine quality is had higher requirement.
Document has also been reported elder generation at diamond surface deposition one deck Cr or Ti or W coating, further plates methods such as Ni, Co, Cr again; On the steel matrix of pre-plating Ni-P alloy-layer or other metallic matrixes, carry out soldering then, think that the grinding performance of grinding tool (for example: .On surface modification of super abrasive grits by CVD of chromium.Annals of CIRP.41 (1) such as A.K.Chattopadhyay, 1992:381-385 is greatly improved; Wang Yanhui etc., the adamantine soldering of compositive lining Ti-Ni is used. diamond and abrasive material mill journey .2001.1 (121) 6-7).This class manufacture method is many one diamond plating treatment process, and the thickness of coating, composition and complicated with combining of scolder, for mono-layer diamond tool, common coating layer thickness is not enough to well that diamond and binding material is bonding.
U.S.Patent No.4,776,862 (R.C.Wiand etc., 1988) and U.S.Patent No.4, soldering behind the material cladding diamond that uses Fe-Mo-Ti etc. can form carbide has openly been reported in 968,326 (R.C.Wiand etc., 1990).With these material cladding diamonds, it is dispersed on the solder of choose reasonable more earlier.In the heating process, form carbide, can obtain bond strength preferably on the diamond border.U.S.Patent No.5,271,547 (S.K.Carlson etc., 1993) one of method of openly having reported carbide formation material cladding diamond is that the diamond with the wetting mistake of mineral oil is put in the bottle that the powder that will coat is housed, and do one's utmost to shake and make metal powder stick to diamond surface full and uniformly, mixture is poured into shake gently in the sieve then to remove excessive powder.U.S.Patent.No.5,855,314 (R.K.Shiue etc., 1990) openly reported another method, with fugitive binders the material powder of the formation carbide such as Fe powder that will coat furnishing pasty state and stirring evenly in crucible, further stir evenly again after putting into diamond, then mixture in 200 ℃ stove dry 2 hours so that fugitive binders volatilize fully.
The mono-layer diamond tool manufacture method of above-mentioned open report, or require to use high-quality diamond, or technology is loaded down with trivial details, the restriction service condition is many or to use in reality be to be difficult to realize stable production.
Summary of the invention
The objective of the invention is the manufacture method of above-mentioned mono-layer diamond tool is improved, the manufacturing new method of the simple mono-layer diamond tool of a kind of technology is provided.
Another object of the present invention is to provide the method for raising diamond with wetability between brazing material.
The present invention also aims to provide a kind of method that problem of oxidation impacts welding quality in the diamond brazing process that reduces.
Further purpose of the present invention also is to produce grinding performance height, mono-layer diamond material product that cost is low.
Diamond grinding tool fabrication method provided by the invention comprises the steps:
(1) on the grinding tool matrix, places soldering lug and solder flux;
(2) single-crystal diamond being superscribed metal powder is placed on the soldering lug; Or between the abrasive particle on the soldering lug of having placed diamond abrasive grain, evenly sprinkle metal powder;
(3) cover diamond tool surface, high frequency brazing diamond with protective material;
(4) high frequency brazing diamond under air or under the protection of local gas.
Soldering lug main component of the present invention is that Ag-Cu-Zn, Ag-Cu-Ti or other main components are Ag-Cu base alloy; Above-mentioned solder flux is 102 solder flux.Such soldering lug is usually used in the caking high-frequency welding in the manufacturing of diamond saw cutting tool, cheap easy acquisition.Adopt the Ag-Cu-Ti solder can reduce the amount of the mixture that uses titanium valve or chromium powder or titanium valve and chromium powder, reach same soldering effect.
Diamond grinding tool fabrication method of the present invention is at parcel chromium powder or titanium valve or both mixtures on the single-crystal diamond or placed the mixture that evenly sprinkles titanium valve or titanium valve and chromium powder between abrasive particle on the soldering lug of diamond abrasive grain.
Our result of study shows, when adopting common Ag-Cu alloy to weld as solder because the Ag-Cu alloy can not soak into diamond `, be added with carbide formers such as Cr, titanium after, solder improves to diamond brazing, specifically is characterized by to improve solder to adamantine wellability.Generated stable carbide at diamond surface, and combined, realized that by carbide diamond combines with the chemical metallurgy of solder with the Ag-Cu solder alloy; Brazing filler metal alloy combines with steel matrix closely simultaneously, and solder and matrix dissolve mutually, spread, and do not have obvious boundary between the two, therefore also can realize higher binding strength between diamond and the steel matrix.
When adding the Ag-Cu alloy high-frequency induction brazing of chromium powder, adopt chromium powder parcel and titanium valve pack can improve the action effect and the utilization rate of metal powder.Simultaneously, because the strong activity of titanium valve, adopt the mixture pack of titanium valve pack or titanium valve and chromium powder, perhaps adopt the mixture that sprinkles titanium valve or titanium valve and chromium powder between the diamond abrasive grain all can obtain between good diamond and solder interface in conjunction with effect.
The use protective material of indication of the present invention covers the diamond tool surface and is meant: in order to prevent the oxidation of titanium valve, need to keep welding work pieces to be in few oxygen or oxygen-free environment when adding titanium valve.
The use protective material of indication of the present invention covers one of concrete grammar of diamond tool, can be to adopt NaCl or the cheap fuse salt of prices such as NaNO3 or KNO3, covers the diamond tool surface and protects, and cleans after soldering is finished.
The use protective material of indication of the present invention covers the concrete grammar of diamond tool, also comprises adopting carbon dust to cover the diamond tool surface.Result of study shows, when high-frequency induction heating matrix and brazing alloy, by the combustion synthesis reaction between carbon dust and the titanium valve, the reaction liberated heat is very high, make system reach very high temperature in moment, TRANSIENT HIGH TEMPERATURE helps generating titanium carbide layer at diamond surface, and then realizes that diamond combines with chemical metallurgy between the matrix.
The used protective gas of high frequency brazing diamond of indication of the present invention is to be used to make the metal powder of interpolation that oxidation does not take place, and these gases in localised protection diamond tool high frequency brazing district are nitrogen or helium or argon gas or carbon dioxide etc.
One of advantage of the present invention is to use inexpensive common Ag-Cu or Ag-Cu-Ti solder commonly used.
One of advantage of the present invention is that also diamond need not coating film treatment.
One of advantage of the present invention is to adopt metal powder commonly used and simple addition manner and prevent method for oxidation.
A main advantage of the present invention is to carry out soldering on common high frequency brazing equipment, promptly can realize between diamond and solder and between diamond and matrix that firm chemical metallurgy combines.Brazing cost is low, and technology is simple, the complexity of reducible manufacturing cost and manufacturing process.
Description of drawings
Fig. 1 method for producing diamond tool schematic diagram;
1-nonmetallic materials pressing plate
The 2-single-crystal diamond
The 3-solder flux
The mixture of 4-Cr powder or Ti powder or Cr powder and titanium valve
The 5-Ag-Cu cored solder
6-diamond tool matrix
The specific embodiment
Further specify the present invention below by some representational example, but do not limit the scope of the invention.
Embodiment 1:
The diamond tool matrix is the 45# steel; Diamond grit 40/50 order; Ag-Cu-Zn; Coat the 102 pasty state brazing fluxes that skim had been boiled at brazing area matrix surface and Ag-Cu-Zn solder sheet surface; Diamond is rolled in the pasty state Cr powder with the ethanol modulation, be put into again on the solder sheet, be pressed on the diamond, in air, carrying out soldering on the high-frequency induction welder, 40 seconds holding times, cooling naturally with non-metal board (pottery, stone material etc.).Diamond particles goes out sword greater than 2/3rds of diamond diameter in the diamond tool, and scolder is sprawled on diamond evenly.Metallographic and energy spectrum analysis show have carbide to generate on the interface of diamond and solder, realized the chemical metallurgy combination between diamond-solder; Heavy load grinding cast iron 10 minutes, diamond abrasive grain is normal wear, does not have the threshing phenomenon.
Embodiment 2:
The diamond tool matrix is the 45# steel; Diamond grit 40/50 order; Ag-Cu-Zn; Coat the 102 pasty state brazing fluxes that skim had been boiled at brazing area matrix surface and Ag-Cu-Zn solder sheet surface; Diamond is rolled in pasty state chromium powder of modulating with ethanol and titanium valve mixture (titanium valve and chromium powder percentage are 20: 80); be put into again on the solder sheet; be pressed on the diamond with non-metal board (pottery, stone material etc.); on high-frequency induction welder, carry out soldering; apply argon shield to brazing area during soldering; 30 seconds holding times, cooling naturally.Diamond particles goes out sword greater than 2/3rds of diamond diameter in the diamond tool, and scolder is sprawled on diamond evenly.Metallographic and energy spectrum analysis show have carbide to generate on the interface of diamond and solder, realized the chemical metallurgy combination between diamond-solder; Heavy load grinding cast iron 10 minutes, diamond abrasive grain is normal wear, does not have the threshing phenomenon.
Embodiment 3:
The diamond tool matrix is the 45# steel; Diamond grit 50/60 order; Ag-Cu-Zn; Coat the 102 pasty state brazing fluxes that skim had been boiled at brazing area matrix surface and Ag-Cu-Zn solder sheet surface; Diamond is placed on the solder sheet, between diamond particles, sprinkles titanium valve and chromium powder mixture (titanium valve and chromium powder percentage are 40: 60) again.On high-frequency induction welder, carry out soldering, apply argon shield to brazing area during soldering, 30 seconds holding times, cooling naturally.Diamond particles goes out sword greater than 2/3rds of diamond diameter in the diamond tool, and scolder is sprawled on diamond evenly.Metallographic and energy spectrum analysis show have carbide to generate on the interface of diamond and solder, realized the chemical metallurgy combination between diamond-solder; The diamond lap dish (diamond grit 260#) that grinding is rotated at a high speed, diamond abrasive grain is normal wear, does not have the threshing phenomenon.
Embodiment 4:
The diamond tool matrix is the 45# steel; Diamond grit 40/50 order; Ag-Cu-Zn; Coat the 102 pasty state brazing fluxes that skim was boiled at brazing area matrix surface and Ag-Cu-Zn solder sheet surface; Diamond is placed on the solder sheet; between diamond, sprinkle titanium valve again; sprinkle carbon dust again and cover the diamond tool surface; be pressed on the diamond with non-metal board (pottery, stone material etc.); on high-frequency induction welder, carry out soldering, apply argon shield to brazing area during soldering, 35 seconds holding times; naturally cooling, clean surface.To go out sword good for diamond particles in the diamond tool, and scolder is sprawled even substantially on diamond.Metallographic and energy spectrum analysis show have carbide to generate on the interface of diamond and solder, realized the chemical metallurgy combination between diamond-solder.
Claims (6)
1. diamond single layer abrasive tool fabrication method, its feature comprises the steps:
(1) on the grinding tool matrix, places soldering lug and solder flux;
(2) single-crystal diamond being superscribed metal powder is placed on the soldering lug; Or between the abrasive particle on the soldering lug of having placed diamond abrasive grain, evenly sprinkle metal powder;
(3) cover the diamond tool surface with protective material;
(4) high frequency brazing diamond under air or under the protection of local gas.
2. diamond single layer abrasive tool fabrication method according to claim 1 is characterized in that above-mentioned soldering lug main component is that Ag-Cu-Zn, Ag-Cu-Ti or other main components are Ag-Cu base alloy; Above-mentioned solder flux is 102 solder flux.
3. diamond single layer abrasive tool fabrication method according to claim 1 is characterized in that the metal powder composition of above-mentioned single-crystal diamond solder flux parcel is chromium powder or titanium valve or both mixtures.
4. diamond single layer abrasive tool fabrication method according to claim 1 is characterized in that the metal powder that evenly sprinkles between the abrasive particle on the above-mentioned soldering lug of placing diamond abrasive grain is the mixture of titanium valve or titanium valve and chromium powder.
5. according to the described diamond single layer abrasive of claim 1 tool fabrication method, the protective material that it is characterized in that covering the diamond tool surface is carbon dust or fuse salt.
6. diamond single layer abrasive tool fabrication method according to claim 1 is characterized in that the used protective gas of above-mentioned high frequency brazing diamond is helium or argon gas or carbon dioxide or nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015234 CN1644319A (en) | 2004-01-19 | 2004-01-19 | Manufacture of single-layer diamond grinder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200410015234 CN1644319A (en) | 2004-01-19 | 2004-01-19 | Manufacture of single-layer diamond grinder |
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| CN1644319A true CN1644319A (en) | 2005-07-27 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102114619A (en) * | 2010-12-21 | 2011-07-06 | 郭和惠 | Dedicated uniformly-distributed diamond wheel for CRTS two-type plate of high-speed railway and processing technology thereof |
| CN102172900A (en) * | 2010-12-15 | 2011-09-07 | 安泰科技股份有限公司 | Method for manufacturing ballastless plate grinding wheel |
| CN104801806A (en) * | 2015-05-14 | 2015-07-29 | 桂林特邦新材料有限公司 | Manufacturing method for brazed diamond tool |
| CN106141349A (en) * | 2015-08-25 | 2016-11-23 | 洛阳新巨能高热技术有限公司 | A kind of welding procedure of mono-layer diamond tool brazing solder |
| CN106141493A (en) * | 2015-08-25 | 2016-11-23 | 洛阳新巨能高热技术有限公司 | A kind of diamond compact brazing solder and welding procedure thereof |
| CN106826602A (en) * | 2017-03-31 | 2017-06-13 | 河南工业大学 | A kind of plunge grinding soldering manufacture of diamond dressing roller and preparation method thereof |
| CN107252941A (en) * | 2017-06-22 | 2017-10-17 | 徐工集团工程机械有限公司 | The preparation method of thrower head |
| CN112719497A (en) * | 2020-12-30 | 2021-04-30 | 长沙理工大学 | Preparation method and system for large-particle diamond abrasive particles through laser brazing |
| CN112719498A (en) * | 2020-12-30 | 2021-04-30 | 长沙理工大学 | Preparation method and system of single-layer brazing diamond tool |
| CN113618648A (en) * | 2021-08-18 | 2021-11-09 | 全立传感科技(南京)有限公司 | Preparation method of regular fine diamond particle grinding tool |
| CN113977467A (en) * | 2021-10-29 | 2022-01-28 | 江苏韦尔博新材料科技有限公司 | Preparation method of brazed diamond dresser for chemical mechanical polishing |
| CN114454100A (en) * | 2021-12-24 | 2022-05-10 | 湖北玉立砂带集团股份有限公司 | Preparation method of metal-based diamond abrasive belt |
-
2004
- 2004-01-19 CN CN 200410015234 patent/CN1644319A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102172900A (en) * | 2010-12-15 | 2011-09-07 | 安泰科技股份有限公司 | Method for manufacturing ballastless plate grinding wheel |
| CN102172900B (en) * | 2010-12-15 | 2013-01-09 | 安泰科技股份有限公司 | Method for manufacturing ballastless plate grinding wheel |
| CN102114619A (en) * | 2010-12-21 | 2011-07-06 | 郭和惠 | Dedicated uniformly-distributed diamond wheel for CRTS two-type plate of high-speed railway and processing technology thereof |
| CN104801806A (en) * | 2015-05-14 | 2015-07-29 | 桂林特邦新材料有限公司 | Manufacturing method for brazed diamond tool |
| CN106141349A (en) * | 2015-08-25 | 2016-11-23 | 洛阳新巨能高热技术有限公司 | A kind of welding procedure of mono-layer diamond tool brazing solder |
| CN106141493A (en) * | 2015-08-25 | 2016-11-23 | 洛阳新巨能高热技术有限公司 | A kind of diamond compact brazing solder and welding procedure thereof |
| CN106826602A (en) * | 2017-03-31 | 2017-06-13 | 河南工业大学 | A kind of plunge grinding soldering manufacture of diamond dressing roller and preparation method thereof |
| CN107252941A (en) * | 2017-06-22 | 2017-10-17 | 徐工集团工程机械有限公司 | The preparation method of thrower head |
| CN112719497A (en) * | 2020-12-30 | 2021-04-30 | 长沙理工大学 | Preparation method and system for large-particle diamond abrasive particles through laser brazing |
| CN112719498A (en) * | 2020-12-30 | 2021-04-30 | 长沙理工大学 | Preparation method and system of single-layer brazing diamond tool |
| CN113618648A (en) * | 2021-08-18 | 2021-11-09 | 全立传感科技(南京)有限公司 | Preparation method of regular fine diamond particle grinding tool |
| CN113977467A (en) * | 2021-10-29 | 2022-01-28 | 江苏韦尔博新材料科技有限公司 | Preparation method of brazed diamond dresser for chemical mechanical polishing |
| CN114454100A (en) * | 2021-12-24 | 2022-05-10 | 湖北玉立砂带集团股份有限公司 | Preparation method of metal-based diamond abrasive belt |
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