CN1095007A - The method for producing diamond tool that contains the surface metallised ceramic phase - Google Patents
The method for producing diamond tool that contains the surface metallised ceramic phase Download PDFInfo
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- CN1095007A CN1095007A CN 93111404 CN93111404A CN1095007A CN 1095007 A CN1095007 A CN 1095007A CN 93111404 CN93111404 CN 93111404 CN 93111404 A CN93111404 A CN 93111404A CN 1095007 A CN1095007 A CN 1095007A
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Abstract
The present invention is the impregnated diamond tools of a kind of grinding solid rock and hard metal or nonmetallic materials, the manufacture method of drill bit, saw blade, emery wheel particularly, comprise technologies such as ceramic phase particles surface metalation, carcass hot pressed sintering, belong to impregnated diamond tools manufacturing technology field.Prepared diamond tool has the carcass that abrasiveness is strong, abrasive resistance is suitable, diamond exposure in good time and coming off, thus overcome " skidding " or " purifying " phenomenon; Tyre body hardness is higher, and ceramic phase particles combines with carcass firmly, and instrument has greater efficiency and life-span.
Description
The present invention for the pregnant iron chains diamond tool of a kind of grinding solid rock and hard metal or nonmetallic materials particularly diamond bit, saw blade, emery wheel manufacture method it comprise and technologies such as ceramic phase particles surface metalation, carcass hot pressed sintering belong to pregnant iron chains diamond tool manufacturing technology field.
Pregnant iron chains diamond tool is when hard, fine and close, the weak abrasiveness rock of grinding or other hard material, carcass portion often weares and teares very slow, and diamond loses out the sword passivation because of the fragmentation under heavily stressed, strong wear, thereby extremely low " skidding " phenomenon of wearing and tearing efficient appears, have a strong impact on work efficiency.In order to address this problem, traditional method is to reduce the hardness of carcass, so that the carcass enhance faster wear, guarantee fund's hard rock in time goes out sword, and this method shortens the life-span of instrument greatly, and the effect of raising the efficiency is very limited.European patent application discloses 83303312.9 preparation methods that disclose a kind of diamond tool, its method is to add polishing agent particles such as aluminium oxide, boron carbide, carborundum in the tool tyre case powder, though this method can make diamond that exposure is preferably arranged, but the bond strength between polishing agent and carcass binding agent is extremely low, carcass is prone to crackle and falls the piece phenomenon, is subjected to very big influence life tools.U.S. Pat 4399167 discloses the method for a kind of diamond, cubic boron nitride particle coating surface metal, can make the good chemical bond of formation between coating and abrasive particle.But the instrument that uses this method processing diamond to make can not solve " skidding " or " passivation " phenomenon.
The objective of the invention is to make a kind of pregnant iron chains diamond tool, as drill bit, saw blade, emery wheel etc., when hard, the weak abrasiveness rock of grinding or other hard material, can prevent " skidding " or " passivation " phenomenon, can make instrument have long service life again.
The present invention is under the prerequisite that does not reduce tyre body hardness, when making diamond tool, adds carborundum, boron carbide, corundum, the TiB that handles through surface metalation in carcass
2Deng ceramic phase, both adjusted carcass wearability and abrasiveness, overcome " skidding " or " passivation " phenomenon; Solve the problem that combines between ceramic phase and carcass binding agent simultaneously, thereby reach the purpose that improves wearing and tearing efficient and increase the service life.
The present invention adopts vacuum batch mixing deposition reaction method that ceramic phase particles is carried out surface metalation and handles.Can form the transition element metal dust that good chemical combines with ceramic phase, evenly mix with ceramic phase particles as a kind of among Ti, V, Nb, Zr, Ta, Cr, the W or several mixture, the mixed proportion of magnesium-yttrium-transition metal powder and ceramic phase particles was not less than 1: 1, and the granularity of the metal dust that is adopted is less than 75 μ m.Compound heats under the melting temperature that is not higher than metal in a vacuum or in the non-oxidizing atmosphere, and temperature is generally 700～1200 ℃, and is incubated 20～60 minutes under this temperature, and vacuum pressure is 1.33 * 10
-5Pa or lower, ceramic phase particles generates the metallization coating on the surface after surface metalation is handled, coating internal layer and ceramic phase reaction generate transition zones such as metal carbides, silicide, boride, skin then is the simple metal layer, and the metallization coating thickness is 2～8 μ m, as shown in Figure 1.To evenly mix with diamond particles and carcass powder through the ceramic phase particles that surface metalation is handled, the volume content of ceramic phase particles in carcass is 5～15%, and granularity is 425～106 μ m, is 30～100% of diamond grit.Compound dress mould is after hot pressed sintering forms, and sintering temperature is 750～1050 ℃, and pressure is 10～25MPa, and temperature retention time is 5～8 minutes.
The diamond tool that adopts the present invention to make; because carcass contains hard brittle ceramic phase; after its fragmentation or coming off; can bring into play the effect of carcass on every side of grinding diamond; thereby the diamond that guarantees the ability of losing the job in time comes off; make the timely exposure of new diamond; simultaneously because ceramic phase and the carcass handled through surface metalation have higher binding strength; carcass crackle and the generation of falling the piece phenomenon have effectively been avoided; and exposure can also be brought into play ablation in the not broken ceramic phase particles of carcass labial surface; alleviate the abrasion that blade diamond, prolong tool life.The diamond tool that the present invention makes, owing to have a carcass that abrasiveness is strong, abrasive resistance is suitable, diamond exposure in good time and coming off, thus overcome " skidding " or " passivation " phenomenon, raise the efficiency 20～70%; Because tyre body hardness is higher and ceramic phase particles combines with carcass firmly, the life-span improves 10～30% again.
Description of drawings:
Fig. 1. the ceramic phase particles after surface metalation is handled, wherein, 1-ceramic phase particles, 2-metal and ceramic compound layer, 3-simple metal layer.
Embodiment:
1. the making of pregnant iron chains diamond tool.Ceramic phase is the carborundum that contains the chromium coating, and the plating process is: temperature is 1100 ℃, and temperature retention time is 60 minutes, and initial vacuum pressure is 1.33 * 10
-5Pa, carborundum granularity are 150～106 μ m, and the volume content of carborundum in carcass is 10%, and the hot pressed sintering temperature is 980 ℃, pressure 20MPa, temperature retention time 8 minutes.The drill bit that obtains compares with the common drill bit that does not contain ceramic phase, and when the probing drillability was 8～10 grades rock stratum, drilling efficiency improved 66%, reduced bit wear 15%; Compare with the diamond bit that contains without surface metalation processing carborundum, reduce wearing and tearing 50～80%.
2. the making of diamond disc.Ceramic phase particles is the carborundum of titanium-chromium containing alloy clad, and plating technic is: 1150 ℃ of temperature, and temperature retention time 60 minutes, initial vacuum pressure is 1.33 * 10
-5Pa, carborundum granularity are 250～180 μ m, and the volume content of carborundum in carcass is 7%.Saw blade hot pressed sintering temperature is 900 ℃, and pressure is 15MPa, temperature retention time 7 minutes.Prepared saw blade is compared with common diamond saw blade, under the roughly the same situation of power consumption, and the sawing granite in slab, efficient improves 45%, and saw life prolongs 10%.
Claims (7)
1, a kind of diamond tool manufacture method of drill bit, saw blade, emery wheel particularly, it is characterized in that: adopt vacuum batch mixing deposition reaction method that ceramic phase particles is carried out surface metalation and handle, thereby generate the metallization coating on the ceramic phase particles surface, to mix with diamond particles and carcass powder through the ceramic phase particles that surface metalation is handled then, compound is adorned mould after hot pressed sintering forms, sintering temperature is 750～1050 ℃, and pressure is 10～22MPa, and temperature retention time is 5～8 minutes.
2, manufacture method according to claim 1 is characterized in that, the volume content of ceramic phase particles in carcass is 5～15%, and granularity is 425～106 μ m, is 30～100% of diamond grit.
3, manufacture method according to claim 1, it is characterized in that, it is that the magnesium-yttrium-transition metal powder is mixed with the ratio that was not less than 1: 1 with ceramic phase particles that the ceramic phase particles surface metalation is handled, compound heats in vacuum or non-oxidizing atmosphere, and maximum temperature is not higher than the melting temperature of metal.
4, manufacture method according to claim 3 is characterized in that, described maximum temperature is generally 700～1200 ℃, and is incubated 20～60 minutes under this temperature.
5, manufacture method according to claim 3 is characterized in that, the metal dust that surface metalation handle to adopt is one or more the mixture in the transiting group metal elements, and the granularity of metal dust is less than 75 μ m.
6, manufacture method according to claim 3 is characterized in that, described vacuum pressure is equal to or less than 1.33 * 10
-5Pa.
7, manufacture method according to claim 3 is characterized in that, described metallization coating thickness is 2～8 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93111404A CN1053409C (en) | 1993-05-11 | 1993-05-11 | Method for making diamond tool containing surface-metallized ceramic phase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN93111404A CN1053409C (en) | 1993-05-11 | 1993-05-11 | Method for making diamond tool containing surface-metallized ceramic phase |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1095007A true CN1095007A (en) | 1994-11-16 |
| CN1053409C CN1053409C (en) | 2000-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93111404A Expired - Fee Related CN1053409C (en) | 1993-05-11 | 1993-05-11 | Method for making diamond tool containing surface-metallized ceramic phase |
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| CN (1) | CN1053409C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446928C (en) * | 2006-11-07 | 2008-12-31 | 泉州金山石材工具科技有限公司 | Diamond bora grinding tool, and production method |
| CN103752640A (en) * | 2013-12-29 | 2014-04-30 | 湖南中航超强金刚石膜高科技有限公司 | Manufacturing method of extrusion punching head of diamond film piston pin |
| CN109750291A (en) * | 2017-11-07 | 2019-05-14 | 深圳先进技术研究院 | A kind of boron-doped diamond electrode and preparation method thereof |
| CN115213824A (en) * | 2021-04-16 | 2022-10-21 | 王军林 | High-performance diamond tool containing wear-resistant matrix layer |
| CN115415944A (en) * | 2022-09-14 | 2022-12-02 | 赛尔科技(如东)有限公司 | Silicon carbide wafer thinning grinding wheel, preparation method and processing equipment comprising silicon carbide wafer thinning grinding wheel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ZA781390B (en) * | 1978-03-09 | 1979-04-25 | De Beers Ind Diamond | The metal coating of abrasive particles |
| ZW12583A1 (en) * | 1982-06-08 | 1983-08-24 | Boart Int Ltd | Drilling bit |
-
1993
- 1993-05-11 CN CN93111404A patent/CN1053409C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100446928C (en) * | 2006-11-07 | 2008-12-31 | 泉州金山石材工具科技有限公司 | Diamond bora grinding tool, and production method |
| CN103752640A (en) * | 2013-12-29 | 2014-04-30 | 湖南中航超强金刚石膜高科技有限公司 | Manufacturing method of extrusion punching head of diamond film piston pin |
| CN103752640B (en) * | 2013-12-29 | 2018-10-12 | 武汉世纪中航超强金刚石膜高科技有限公司 | A kind of production method of diamond film piston pin extrusion punch |
| CN109750291A (en) * | 2017-11-07 | 2019-05-14 | 深圳先进技术研究院 | A kind of boron-doped diamond electrode and preparation method thereof |
| CN115213824A (en) * | 2021-04-16 | 2022-10-21 | 王军林 | High-performance diamond tool containing wear-resistant matrix layer |
| CN115415944A (en) * | 2022-09-14 | 2022-12-02 | 赛尔科技(如东)有限公司 | Silicon carbide wafer thinning grinding wheel, preparation method and processing equipment comprising silicon carbide wafer thinning grinding wheel |
| CN115415944B (en) * | 2022-09-14 | 2024-07-12 | 赛尔科技(如东)有限公司 | Silicon carbide wafer thinning grinding wheel, preparation method and processing equipment comprising silicon carbide wafer thinning grinding wheel |
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| Publication number | Publication date |
|---|---|
| CN1053409C (en) | 2000-06-14 |
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