CN100358669C - Diamond or cubic boron nitride coated with solder, its aggregate and its manufacturing method - Google Patents
Diamond or cubic boron nitride coated with solder, its aggregate and its manufacturing method Download PDFInfo
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- CN100358669C CN100358669C CNB031309984A CN03130998A CN100358669C CN 100358669 C CN100358669 C CN 100358669C CN B031309984 A CNB031309984 A CN B031309984A CN 03130998 A CN03130998 A CN 03130998A CN 100358669 C CN100358669 C CN 100358669C
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- diamond
- boron nitride
- cubic boron
- scolder
- coating
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Abstract
The diamond coated with solder or cubic boron nitride and its aggregate are made up through wetting diamond surface with liquid adhesive, mixing the diamond with adhesive in solder and additive powder to make its surface full of powder, and heating in vacuum furnace to melt the solder and make the diamond be covered with solder alloy. The surface of the diamond can be adhered with other abrasive particles or metal powder by the coated welding flux, and a plurality of diamonds coated with the welding flux can be adhered into a needle-shaped, sheet-shaped or other-shaped tool; after a layer of titanium is plated on the cubic boron nitride, the same method can be applied to prepare the corresponding finished product.
Description
Technical field
The invention relates to a kind of diamond or cubic boron nitride and coenobium and method for making thereof of coating scolder, it is the cubic boron nitride surface that invests diamond or be coated with titanium with solder powder, and then the melting solder of heating, make diamond or cubic boron nitride are wrapped in wherein by solder alloy.
Background technology
The inertia of diamond is very big.Just because its is difficult for and other material reaction, it just can be used for cutting the grinder part.For example the diamond sawtooth is used for the sawing stone material in a large number.Diamond wheel then is usually used in processing the nonferrous material that comprises pottery, glass etc.Diamond meeting and iron group metal (iron, cobalt, nickel or its alloy) reaction are so be not suitable for being used for processing this class material but at high temperature.
When making jewelling tool, the diamond abrasive material must be mixed in the bond (Bond) (as metal, pottery or resin).Bond diamond particle can be separated and will indivedual grippings in order to saw grinder part.But because of the diamond inertia is very big, various bonds all can't effectively grip diamond so that most diamond is all knocked when saw grinder part.The also therefore utilization rate very low (about 10%) of diamond, thus the life-span of jewelling tool just lack partially.
General bond is mechanical diamond to be blocked.Most metallic bond (as iron, cobalt, nickel, copper or its alloy) is to clamp with the diamond that powder sintered shaping will be mixed in therebetween.Some jewelling tool is with the nickel of deposition in the aqueous solution (electrolyte) that the diamond encirclement is fixing.The bond of glass or pottery (Verified) also is to surround inner diamond with powder sintered shaping.Resinoid bond then is integral resin sintering or founding diamond is embedded in wherein.These methods all can not make bond effectively grip diamond.
In order to strengthen the curable grip of diamond, traditional method is to plate layer of metal in the diamond outside.For example in solution, nickel (interior phosphorous) is deposited on the surface of diamond with chemical plating (Electroless Coating).Also have with molten-salt growth method (as with CaCl
2The eutectic composition of-NaCl-KCl) metal dust (as Ti, Cr, Si) diffusion is deposited on diamond surface again.For another example with the method for chemical vapour deposition (CVD) (Chemical VaporDeposition or CVD) the gas of metallic compound (as TiCl
4, SiCl
4, CrCl
3, WCl
3) restore metal and be deposited on again on the surface of diamond.
Above-mentioned film plating process is exactly with vapour deposition if not depositing with solution.The method of this class all is the atom or the atomic group of solid at the metal of diamond surface deposition.These solid particles are " wetting " (Wetting) surface of diamond effectively, so still contains many holes within the plated film, so organizing of they is not fine and close.What is more, and except that the nickel dam of chemical plating, other plated film is all extremely thin, normal not as good as 1 micron (Micro Meter).And the nickel of chemical plating also can only wrap up diamond, can not grab diamond.Except the problems referred to above, the composition of traditional plated film is the ten minutes homogeneous usually, has both made the coating multilayer can not make its alloying.Add that the plated film all too is thin, therefore not only bond is difficult to adhere to, and they are combined dose of dissolving easily also.Its result can make the effect of diamond coating film eliminate fully.
Summary of the invention
Because existing diamond coating method effect is not good, the inventor examines and studies at existing method, through constantly developing product of the present invention and the manufacture method thereof that value on the true tool industry finally after trial and the experiment.
One of purpose of the present invention is: a kind of diamond or cubic boron nitride of coating scolder are provided, and this scolder is the liquid of molten condition when coating, and thickness is more than 2 microns;
Two of purpose of the present invention is: a kind of method of making the diamond or the cubic boron nitride of coating scolder is provided, it is with the wetting diamond surface of aqueous adhesive, there is the surface diamond of adhesive to sneak in scolder and the additive powder again, make its surface stick powder all over, insert then and heat in the vacuum drying oven, diamond is wrapped up by solder alloy and form the diamond that is coated with solder alloy solder fusing;
Three of purpose of the present invention is: a kind of method of making the diamond or the cubic boron nitride of coating scolder is provided, and its diamond or cubic boron nitride are and scolder lumps together but be to separate with ceramic material between each particle;
Four of purpose of the present invention is: a kind of diamond or cubic boron nitride coenobium of coating scolder are provided, and this coenobium is that the scolder with fusion is bonded together it and solidifies cooling forming.
The present invention also can directly mix diamond and solder powder heating again, at this moment can not need use organic binder.
Comply with method for making of the present invention in addition also applicable to the cubic boron nitride that plates one deck titanium.
For making your juror further understand aforementioned purpose and feature of the present invention, attached now with graphic detailed description as the back:
Description of drawings
Fig. 1: the profile schematic diagram of making the hedgehog diamond for method of the present invention.
In the accompanying drawing:
10--diamond 12--scolder
14--doses thing
The specific embodiment
The present invention changes tradition with the method that solution (water or fused salt) or gas come the coating diamond, directly sticks diamond and use the melt metal scolder instead.Because solder is can free-pouring liquid, thus it fully " wetting " diamond also attach on it closely, and its thickness is more than 2 microns.Into person is arranged especially, scolder contain can form carbide with diamond reaction " activated metal " (ReactiveMetal), as Ti, Cr, Vi, Mn, V ... Deng, so scolder also can chemical bond clench diamond.In addition, the solder alloy of fusion can coating thicker (as 10 microns), therefore unexpected combined dose of dissolving or corrode.
Scolder with fusion comes the coating diamond to also have a very big benefit, and promptly the main component of scolder (as nickel or copper) forms strong metallurgical bond (Metallurgical Bond) with mutual the fusing of Main Ingredients and Appearance (iron, cobalt, nickel, copper or its alloy) meeting of metallic bond.Therefore the diamond that uses the scolder coating does not have tangible plane of weakness between from the diamond to the bond.Yet therefore this jewelling tool diamond in use can not come off and can fully use.The life-span of jewelling tool just can significantly prolong like this.
Its rate of depreciation of the scolder of coating diamond must be between the rate of depreciation of diamond and bond, and diamond could be given prominence to just rightly like this, both can saw mill at a high speed, and also unexpected being severed split.Because alloy coating is not only enough thick, also can infiltrate other material in it to regulate its wearability.For example infiltrate soft copper powder in the plated film and its hardness is reduced and the acceleration abrasion, make diamond more outstanding.Opposite, not easy to wear if infiltrate in plated film that the tungsten carbide (WC) of hard or carborundum (SiC) powder can make its hardening.So just can avoid that diamond is excessive to be exposed and drop.Therefore the hardness of alloy coating can freely be adjusted and make its wear rate can be synchronous with diamond.
In addition, as shown in Figure 1, because the alloy coating of diamond 10 scolders 12 can be thicker, and it is to be molten condition when coating, therefore what scolder 12 also can stick other simultaneously doses composition granule 14, and it comprises diamond, carborundum, tungsten carbide and even the various metal (as iron, nickel, cobalt, stainless steel, copper) etc. of granule.The diamond of making like this " shell " has many outstanding spines or heel knurl, just like " hedgehog ".This " hedgehog " plated film not only can clench diamond 10, also can block bond by bur, makes its unlikely coming off.In addition, " hedgehog " plated film can be formed on the buffering area between diamond and the bond, makes diamond can obtain stronger support when striking work, and its is just not easily broken or break like this.
The diamond size that the present invention adopted but also can be used for greater or lesser granularity usually between 18 to 60 sieve meshes.Scolder 12 can be Ni-based or the copper base usually.Its " activated metal " can be at least 2% titanium, chromium, manganese, silicon ... Deng.A kind of scolder commonly used be U.S. Wall Comonoy company made be the LM (nickeliferous, chromium, boron, silicon) of trade mark with Nichrobraz.
Glutinous together for exempting between the diamond when the coating alloy coating by scolder, can again the surface be had the diamond of viscose to sneak into scolder and dose thing (as WC) to make diamond surface stick powder all over earlier with the surface of the wetting diamond of aqueous adhesive (as acryl glue).If repeat glutinous powder for several times, the alloy film of diamond outside will be thicker.The diamond that sticks powder all over can insert a kind of and the nullvalent powder of scolder (as aluminium oxide (Al
2O
3), SiO
2Or ZrO
2) in the heap, insert in the vacuum drying oven heat (as 1000 ℃) then with solder fusing.Every diamond can be wrapped up by solder alloy like this.But, be not difficult to separate so can not stick at one because of oxide or nitride each other separate.If solder surface will affix outstanding particle (as SiC), the diamond that then surface can be affixed scolder is imbedded in this granulation mass and is got final product.When solder fusing, will affix outstanding particle automatically.
If without organic binder, diamond also can be inserted individually in the boring on a kind of and inoperative ceramic material of scolder.At this moment an amount of scolder can in order to be packed in diamond around.Heat make solder fusing after, scolder just can be rolled into diamond the plated film of setting thickness.
In this way not only can be made into the diamond of coating alloy, can also diamond be fused alloy, make the coenobium of " diamond pin " or " diamond plate ".For example diamond is formed a line, or be paved into a slice, be filled with scolder at its seam crossing again, when solder fusing, just diamond can be sticked into a row or an a slice.When making the diamond coenobium, also can add other powder (as WC) in the scolder to regulate its hardness with the method.
In addition, according to method of the present invention, also can be in order to the cubic boron nitride (Cubic BoronNitride) of the non-diamond of coating, but the surface of cubic boron nitride wants to plate one deck titanium (about 1 μ m is thick) with conventional method earlier when coating, with scolder method such as method infusion as the aforementioned, promptly can be made into the cubic boron nitride and the cubic boron nitride coenobium of coating scolder again.
Claims (14)
1. the diamond of a coating scolder or cubic boron nitride is characterized in that, this scolder is the liquid of molten condition when coating, and thickness is more than 2 microns.
2. as the diamond or the cubic boron nitride of 1 described coating scolder of claim the, it is characterized in that wherein this scolder Main Ingredients and Appearance is nickel, cobalt, iron or copper.
3. as the diamond or the cubic boron nitride of 1 described coating scolder of claim the, it is characterized in that wherein this scolder contains at least 2% titanium, chromium, vanadium, silicon or manganese.
4. as the diamond or the cubic boron nitride of 1 described coating scolder of claim the, it is characterized in that wherein the granularity of this diamond or cubic boron nitride is between 18 to 60 sieve meshes.。
5. as the diamond or the cubic boron nitride of 1 described coating scolder of claim the, it is characterized in that wherein this coating layer is sticking than coating diamond or the littler SiC particle of cubic boron nitride.
6. as the diamond or the cubic boron nitride of 1 described coating scolder of claim the, it is characterized in that wherein this diamond or cubic boron nitride are to be used for sawing stone material, cement or brick and tile.
7. a manufacturing is as the diamond of coating scolder as described in 1 of the claim the or the method for cubic boron nitride, it is characterized in that, it is to be stained with solder powder with viscose earlier in diamond or cubic boron nitride surface, again it is separated and inserts in the vacuum drying oven that solder fusing is made it to be coated on diamond or cubic boron nitride surface.
8. as 7 described manufacture methods of claim the, it is characterized in that, wherein plate one deck titanium earlier and carry out coating again on the cubic boron nitride surface.
9. as 7 described manufacture methods of claim the, it is characterized in that it is will be stained with the diamond of solder powder or cubic boron nitride separately with oxide or nitride powder, wherein the main component of this oxide is Al
2O
3, SiO
2Or ZrO
2
10. as 7 described manufacture methods of claim the, it is characterized in that, wherein separate the SiC particle of the material of the diamond that is stained with solder powder or cubic boron nitride for desire to be attached on solder film surface.
11. a manufacturing is as the diamond of coating scolder as described in 1 of the claim the or the method for cubic boron nitride, it is characterized in that, its diamond or cubic boron nitride are and scolder lumps together but be to separate with ceramic material between each particle, and wherein this ceramic material is a kind of and the inoperative ceramic material of scolder.
12., it is characterized in that wherein the method that separates diamond or cubic boron nitride and scolder with ceramic material is that diamond or cubic boron nitride and scolder are inserted in the pre-drilled hole of this material as 11 described manufacture methods of claim the.
13. one kind as the diamond of 1 described coating scolder of claim the or the coenobium of cubic boron nitride, it is characterized in that, this coenobium is that the scolder with fusion is bonded together it and solidifies cooling forming.
14. diamond or cubic boron nitride coenobium as 13 described coating scolders of claim the is characterized in that it is shaped as strip or sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031309984A CN100358669C (en) | 2003-05-12 | 2003-05-12 | Diamond or cubic boron nitride coated with solder, its aggregate and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031309984A CN100358669C (en) | 2003-05-12 | 2003-05-12 | Diamond or cubic boron nitride coated with solder, its aggregate and its manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548267A CN1548267A (en) | 2004-11-24 |
| CN100358669C true CN100358669C (en) | 2008-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031309984A Expired - Fee Related CN100358669C (en) | 2003-05-12 | 2003-05-12 | Diamond or cubic boron nitride coated with solder, its aggregate and its manufacturing method |
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| CN106735778A (en) * | 2016-12-14 | 2017-05-31 | 青岛科技大学 | A kind of new method for making Study on Brazed Superabrasive Tools by arc cold-welding legal system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3316073A (en) * | 1961-08-02 | 1967-04-25 | Norton Co | Process for making metal bonded diamond tools employing spherical pellets of metallic powder-coated diamond grits |
| US4770907A (en) * | 1987-10-17 | 1988-09-13 | Fuji Paudal Kabushiki Kaisha | Method for forming metal-coated abrasive grain granules |
| CN1071113A (en) * | 1991-09-20 | 1993-04-21 | 通用电气公司 | Diamond pellets and saw blades made from them |
| CN1261301A (en) * | 1997-04-04 | 2000-07-26 | 宋健民 | Diamond grinding tools brazed by infiltration |
| CN1313150A (en) * | 1997-05-13 | 2001-09-19 | 理查德.埃德蒙多.托特 | Hard powders coated with tough materials |
-
2003
- 2003-05-12 CN CNB031309984A patent/CN100358669C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3316073A (en) * | 1961-08-02 | 1967-04-25 | Norton Co | Process for making metal bonded diamond tools employing spherical pellets of metallic powder-coated diamond grits |
| US4770907A (en) * | 1987-10-17 | 1988-09-13 | Fuji Paudal Kabushiki Kaisha | Method for forming metal-coated abrasive grain granules |
| CN1071113A (en) * | 1991-09-20 | 1993-04-21 | 通用电气公司 | Diamond pellets and saw blades made from them |
| CN1261301A (en) * | 1997-04-04 | 2000-07-26 | 宋健民 | Diamond grinding tools brazed by infiltration |
| CN1313150A (en) * | 1997-05-13 | 2001-09-19 | 理查德.埃德蒙多.托特 | Hard powders coated with tough materials |
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| Publication number | Publication date |
|---|---|
| CN1548267A (en) | 2004-11-24 |
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Owner name: TAIDIAM TECHNOLOGY( ZHENG ZHOU ) CO., LTD. Free format text: FORMER OWNER: SONG JIANMIN Effective date: 20100129 |
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Effective date of registration: 20100129 Address after: No. ninth, No. 10, Henan export processing zone, Zhengzhou 1-2 Avenue, Henan, Zhengzhou Province Patentee after: Taidiam Technology (Zhengzhou) Co., Ltd. Address before: The town of Taiwan County of Taipei province Zhongshan Road No. 64 Patentee before: Song Jianmin |
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