CN1050836A - Extra hard rock inserting diamond tool making method - Google Patents
Extra hard rock inserting diamond tool making method Download PDFInfo
- Publication number
- CN1050836A CN1050836A CN 89105773 CN89105773A CN1050836A CN 1050836 A CN1050836 A CN 1050836A CN 89105773 CN89105773 CN 89105773 CN 89105773 A CN89105773 A CN 89105773A CN 1050836 A CN1050836 A CN 1050836A
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- diamond
- carcass
- powder
- internal layer
- drill bit
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Abstract
A kind of impregnated diamond tools such as drill bit, saw blade and manufacture method thereof that can overcome " skidding " and " passivation " phenomenon belongs to impregnated diamond tools manufacturing technology field.Diamond has double-decker, loose internal layer and carcass skin in this instrument.Because internal layer intensity is very low, when to creep into drillability be 10～12 grades rock, blunt stone in time came off from carcass automatically, makes new diamond be able to exposure, remains drill bit and is in sharp state, and do not occur skidding.Has timeliness height (be 1.0～1.5 meters/time), long advantages such as (being 10～30 meters /) of life-span.
Description
The present invention is the manufacture method of the extremely hard and pregnant iron chains diamond tool of solid rock of a kind of grinding, and it comprises that diamond particles makes technologies such as ball, pressurization, sintering.
Pregnant iron chains diamond tool and drill bit are extremely hard when the solid rock in grinding, because adamantine rapid passivation, and " skidding " or " passivation " phenomenon appears, influence grinding efficiency.In order to address this problem, BP 0096591 discloses a kind of preparation method of diamond tool, its method is to add the polishing agent in carcass powder, can make instrument and drill bit that diamond exposure is preferably arranged, diamond changes interval velocity but can not have faster, thereby also just can not solve the drill bit problem of " skidding "; " soft carcass method " changes interval velocity though can improve diamond, and the life-span is extremely short.United States Patent (USP) 3316073 discloses a kind of manufacture method of diamond bit-make the ball method, can improve the even distribution of diamond in carcass with the method, improves drill quality, but can not solve " skidding " problem.
The objective of the invention is to make a kind of pregnant iron chains diamond tool such as drill bit, " skidding " or " passivation " phenomenon does not appear in saw blade when the grinding extremely hard rock.The essence of this method is to reduce the bag iron chains intensity of diamond in carcass, quickens diamond and changes layer, makes instrument remain sharp state.
The present invention is improved a kind of method of making pregnant iron chains diamond tool on the basis of making the ball method.Concrete technology is, adopting the mixed liquor (ratio is 5: 1) of alcohol and glycerine is wetting agent, earlier diamond being wrapped one deck, still to keep loose condition (of surface), thickness later at sintering be that the weight ratio of 0.05～0.10mm(diamond and powder is 1: 1～1: 4) the internal layer powder, mix with carcass powder again and form carcass powder skin (Fig. 1), behind the dress mould, in the sintering temperature moulding that is lower than 20～40 ℃ of carcass powder sintering temperatures.The internal layer powder can be the material that fusing points such as WC, W, Co, graphite are higher than the carcass powder sintering temperature, and loose interior layer thickness is 10～40um after the sintering.
Can make pregnant iron chains diamond bit, saw blade with method of the present invention.For diamond bit, sintering temperature is 900～1000 ℃, and pressure is 200～300kg/cm
2, temperature retention time is 5～7 minutes; For saw blade, sintering temperature is 850～900 ℃, and pressure is 150～200kg/cm
2, temperature retention time is 5～7 minutes.
Pregnant iron chains diamond tool with method manufacturing of the present invention, as drill bit, saw blade, because the internal layer powder does not contain glued metal in the carcass, and its fusing point is higher than the sintering temperature of carcass powder far away, thereby still can keep loose condition (of surface) behind the sintering, thereby reduced the bag iron chains intensity of diamond in carcass.After the diamond blunt arrives to a certain degree, will from carcass, come off automatically, make following new diamond be able to exposure (Fig. 3), remain the sharp state of diamond tool.During the formation hardness of grinding big more (drillability is 10～12 grades), interior layer thickness also should be big more.
Has two-layer bag iron chains layer (Fig. 2) with diamond in the diamond tool-drill bit of this method manufacturing, the saw blade, internal layer that adhesion strength is low and carcass powder skin, drill bit with this structure, saw blade, grinding is extremely hard when the solid rock, owing to have and change interval velocity faster, thereby can not occur skidding.The interior adamantine interval velocity of changing of drill bit, saw blade owing to this structure depends primarily on interior layer thickness simultaneously, and it is little with the tyre body hardness relation, therefore, can produce existing higher diamond and change interval velocity, again high carcass wearability arranged, be applicable to and creep into drill bit hard, crisp, broken stratum.When to creep into drillability hardness be 10～12 grades rock with this drill bit, has timeliness height (timeliness be 1.0～1.5 meters/time), long advantages such as (life-span are 10～30 meters /) of life-span.
Description of drawings:
Fig. 1. through making the diamond particles of ball.The 1-diamond, 2-internal layer powder, 3-carcass powder
Fig. 2. the microstructure of the diamond tool behind the sintering
Fig. 3. the process that comes off of diamond particles
Embodiment:
1. the making of pregnant iron chains diamond bit.The internal layer powder is WC, and diamond and WC weight ratio are 1: 3, and sintering temperature is 950 ℃, pressure 250kg/cm
2, temperature retention time 7 minutes.Coloured two teams use in Henan, and the rock stratum is a quartz porphyry, and drillability is 11 grades, timeliness be 1.08 meters/time, the life-span is 29 meters/(quartz porphyry accounts for 40%).
2. the making of pregnant iron chains diamond bit.The internal layer powder is WC, and diamond and WC weight ratio are 1: 4, and sintering temperature is 970 ℃, and pressure is 250kg/cm
2, temperature retention time 7 minutes.332 teams use in Anhui, and the rock stratum is silication granite and has thin quartz vein, 10～11 grades of drillabilitys.Timeliness be 1.5 meters/time, the life-span is 12.8 meters/.
Claims (5)
1, the manufacture method of the extremely hard pregnant iron chains diamond tool with solid rock of a kind of grinding, what comprise diamond particles makes technologies such as ball, pressurization, sintering, it is characterized in that, earlier diamond surface is wrapped one deck still can keep loose condition (of surface) behind sintering internal layer powder, make ball with carcass powder again, at the sintering temperature that is lower than 20～40 ℃ of carcass powder sintering temperatures.
2, method according to claim 1 is characterized in that, the weight ratio of diamond and internal layer powder is 1: 1～1: 4, and the internal layer powder can be the material that fusing points such as WC, W, Co, graphite are higher than the carcass powder sintering temperature.
3, method according to claim 2 and with the drill bit that the method is made is characterized in that sintering temperature is 900～1000 ℃, and pressure is 200～300kg/cm
2, temperature retention time is 5～7 minutes.
4, method according to claim 2 and with the saw blade that the method is made is characterized in that sintering temperature is 850～900 ℃, and pressure is 150～200kg/cm
2, temperature retention time is 5～7 minutes.
5, according to claim 3 or 4 described methods and drill bit, the saw blade made with the method, it is characterized in that diamond has two-layer bag iron chains layer in drill bit, the saw blade, loose internal layer and carcass skin, interior layer thickness are 10～40um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105773 CN1019077B (en) | 1989-10-07 | 1989-10-07 | Extra hard rock inserting diamond tool making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89105773 CN1019077B (en) | 1989-10-07 | 1989-10-07 | Extra hard rock inserting diamond tool making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1050836A true CN1050836A (en) | 1991-04-24 |
| CN1019077B CN1019077B (en) | 1992-11-18 |
Family
ID=4856422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89105773 Expired CN1019077B (en) | 1989-10-07 | 1989-10-07 | Extra hard rock inserting diamond tool making method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1019077B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399992A (en) * | 2014-10-20 | 2015-03-11 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting diamond impregnated insert |
| CN104929526A (en) * | 2014-03-17 | 2015-09-23 | 中矿资源勘探股份有限公司 | Diamond bit material and preparing method thereof |
| CN106425350A (en) * | 2016-12-23 | 2017-02-22 | 诺鑫（南通）医疗技术有限公司 | Preparation method of medical power reciprocating saw blade |
-
1989
- 1989-10-07 CN CN 89105773 patent/CN1019077B/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104929526A (en) * | 2014-03-17 | 2015-09-23 | 中矿资源勘探股份有限公司 | Diamond bit material and preparing method thereof |
| CN104399992A (en) * | 2014-10-20 | 2015-03-11 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting diamond impregnated insert |
| CN104399992B (en) * | 2014-10-20 | 2017-01-18 | 四川川庆石油钻采科技有限公司 | Manufacturing method of double-cutting impregnated insert |
| CN106425350A (en) * | 2016-12-23 | 2017-02-22 | 诺鑫（南通）医疗技术有限公司 | Preparation method of medical power reciprocating saw blade |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1019077B (en) | 1992-11-18 |
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| C13 | Decision | ||
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
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