CN101191169A - Carbon nano tube-diamond-hard alloy composite material and its preparation method and application - Google Patents
Carbon nano tube-diamond-hard alloy composite material and its preparation method and application Download PDFInfo
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- CN101191169A CN101191169A CNA2006101449757A CN200610144975A CN101191169A CN 101191169 A CN101191169 A CN 101191169A CN A2006101449757 A CNA2006101449757 A CN A2006101449757A CN 200610144975 A CN200610144975 A CN 200610144975A CN 101191169 A CN101191169 A CN 101191169A
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Abstract
The invention discloses a carbon nanotubes reinforced diamond-carbide alloy compound material is the compound material with high strength and high abrasion resistance. A proper amount of carbon nanotubes are added according to the theory of fiber reinforcement, largely improving the strength and toughness of diamond-carbide compound material by more than 24.9 percent, and increasing the rigidity by 5.1 percent. The manufacture method of the compound material is as follows: adding carbon nanotubes with percentage by mass less than 0.6 percent when manufacturing various diamond-containing carbide compound materials, and adopting hot pressing or plasma electric spark sintering technique to produce carbon nanotubes reinforced diamond-carbide alloy type compound material. The carbon nanotubes reinforced diamond-carbide compound material can be used as the super-hard part to produce carbide tooth used in various mines and oilfield bits and other abrasion resistant components.
Description
Technical field
The present invention relates to a kind of carbon nanotube enhanced diamond-hard alloy composite material.It is high strength, high-wearing feature matrix material.
Background technology
The percussion drilling method applies to departments such as mining, geology, water power, traffic, building materials widely owing to have efficient characteristics, becomes the main broken rock means of boring the pick engineering.But traditional Wimet drilling tool wear resistance is relatively poor, and particularly when creeping into the solid rock layer, efficient is lower, and boring is easy to generate " undergauge ".Investigation shows, scrap ratio up to 40% owing to what the wearing and tearing of hard alloy columnar teeth made drill bit, and rock is hard more, and this ratio is high more.People attempt making the diamond composite of wear resistant and impact resistant, with raising drill bit, bore bit (down-the-hole hammer drill head) life-span and drilling efficiency with the high strength bond of adamantine high-wearing feature and Wimet together.But adamantine adding has caused diamond-hard alloy composite material intensity, toughness sharply to reduce, make diamond-hard alloy composite material also be difficult in boring the pick engineering, obtain practical application, wherein the diamond distribution zone is that main strength weak district, the crackle of matrix material begins the district
According to the fiber reinforcement theory, adopt carbon nanotube to strengthen diamond-hard alloy composite material, increase substantially its intensity, toughness, and improve hardness.Carbon nanotube strengthens diamond-hard alloy composite material, existing fiber reinforcement theoretical conventional crackle bridging, crack deflection, extracts mechanism such as effect, and its special one side is also arranged.(1) from the mechanics of materials, diamond is to cause diamond-hard alloy composite material intensity, major cause that toughness is low, and carbon nanotube is crossed over the right weak area of Buddha's warrior attendant, can play enhancement.(2) from fracture mechanics, carbon nanotube can weaken most advanced and sophisticated crack propagation across the caused crack tip of diamond, improves fracture toughness property.(3) from space structure, overlap joint, the intersection of carbon nanotube in the space, get in touch with, be dispersed into similar solid netted; The tubular structure of carbon nanotube, very big slenderness ratio are beneficial to caking agent and combine, and the high-strength performance of carbon nanotube, make it become a high-strength part in sintered compact.
Summary of the invention
A kind of carbon nanotube enhanced diamond-hard alloy composite material: form by sintering process manufacturings such as hot pressing or plasma electric sparks, this material is high strength, high-wearing feature matrix material.Utilize the fiber reinforcement theory, add an amount of carbon nanotube, increase substantially intensity, the toughness of diamond-hard alloy composite material, increase rate is more than 24.9%, and improved hardness, and increase rate is more than 5.1%.This carbon nano tube-diamond-hard alloy composite material in order to make all kinds of mines, oil field drill bit hard-metal insert, reaches other type wear member as superhard part.Conventional diamond-Wimet composite teeth, be with Wimet as the cylinder matrix,, because of the intensity between the two, toughness differ greatly, often produce superhard bizet delamination, fall phenomenon such as cap as superhard bizet with diamond-hard alloy composite material.Material of the present invention is applied to the manufacturing of digging teeth: according to producing needs, determine performance requriements to tooth, then by the means such as cambered surface (spherical crown surface) INTERFACE DESIGN between cobalt amount difference and two parts of containing between the ratio of the relation between diamond concentration and the composite property, diamond and tungsten carbide size and the relation between the composite property, fiber reinforced effect, superhard part and trunk portion are divided, make intensity, toughness between superhard part and the cylinder matrix approaching substantially, overcome delamination, fallen difficult problems such as cap.
Embodiment
The manufacture method of this matrix material: when making diamantiferous all kinds of hard alloy composite material, add massfraction and be no more than 0.6% carbon nanotube, adopt hot pressing (or plasma electric spark) sintering process, produce carbon nanotube and strengthen diamond/Wimet class matrix material.
Prescription: massfraction 0.1%-0.5% carbon nanotube, diamond concentration 〉=30%, (when adopting hot pressed sintering, binding agent is cobalt+nickel+phosphorus to binding agent 3%-25%, cobalt: nickel: phosphorus=8: 3: 0.5; When adopting plasma electric spark sintering, binding agent is a cobalt), all the other are wolfram varbide.
Manufacturing process (1) is earlier with carbon nanotube purifying, dispersion; (2) again with carbon nanotube, diamond, wolfram varbide powder, cobalt powder, nickel powder, phosphorus etc. fully mixed evenly (when adopting plasma electric spark sintering, that carbon nanotube, diamond, wolfram varbide powder, cobalt powder etc. are fully evenly mixed); (3) powder that will mix then is loaded on and carries out sintering in the mould, and the hot-pressing sintering technique parameter is: sintering temperature 1030-1060 ℃, and sintering pressure 20-55MPa, 3-5 minute heat-insulation pressure keeping time.Plasma electric spark sintering processing parameter is: sintering temperature≤1200 ℃, sintering pressure≤55MPa, heat-insulation pressure keeping time 〉=3 minute.
Making all kinds of mines, when the oil field drill bit is used hard-metal insert, carbon nanotube being strengthened diamond-hard alloy composite material as superhard bizet, be used for drilling rock.
Claims (3)
1. carbon nanotube enhanced diamond-hard alloy composite material: this material is high strength, high-wearing feature matrix material.
2. the preparation method of matrix material: utilize the fiber reinforcement theory, when making all kinds of diamantiferous hard alloy composite material, add massfraction and be no more than 0.6% carbon nanotube, adopt hot pressing (or plasma electric spark) sintering process, produce carbon nanotube and strengthen diamond/hard alloy composite material.
3. this carbon nanotube enhanced diamond-hard alloy composite material in order to make all kinds of mines, oil field drill bit hard-metal insert, as the high-strength wearable bizet of tooth, and is applied to other type wear member as superhard part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101449757A CN101191169A (en) | 2006-11-27 | 2006-11-27 | Carbon nano tube-diamond-hard alloy composite material and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101449757A CN101191169A (en) | 2006-11-27 | 2006-11-27 | Carbon nano tube-diamond-hard alloy composite material and its preparation method and application |
Publications (1)
| Publication Number | Publication Date |
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| CN101191169A true CN101191169A (en) | 2008-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA2006101449757A Pending CN101191169A (en) | 2006-11-27 | 2006-11-27 | Carbon nano tube-diamond-hard alloy composite material and its preparation method and application |
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| CN (1) | CN101191169A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103521764A (en) * | 2013-11-01 | 2014-01-22 | 吉林大学 | High-strength abrasion-resistant powder metallurgy composite material and preparation method thereof |
| CN103748309A (en) * | 2011-08-24 | 2014-04-23 | 长年Tm公司 | Impregnated drilling tools including elongated structures |
| CN105345686A (en) * | 2008-12-18 | 2016-02-24 | 高咏生 | Machining tool and manufacturing method thereof |
| CN105705722A (en) * | 2013-12-13 | 2016-06-22 | 哈里伯顿能源服务公司 | Fiber-reinforced tools for downhole use |
| CN109913682A (en) * | 2019-04-04 | 2019-06-21 | 吉林大学 | Nano silicon carbide niobium/carbon nanotube enhancing diamond composite and preparation method thereof |
| CN110056313A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | The impregnated diamond composite block of PDC- |
| CN116160005A (en) * | 2023-02-20 | 2023-05-26 | 中国矿业大学 | Preparation process of diamond and carbon nano tube composite cutting pick |
-
2006
- 2006-11-27 CN CNA2006101449757A patent/CN101191169A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345686A (en) * | 2008-12-18 | 2016-02-24 | 高咏生 | Machining tool and manufacturing method thereof |
| CN105345686B (en) * | 2008-12-18 | 2019-04-12 | 高咏生 | A kind of machining tool and its manufacturing method |
| CN103748309A (en) * | 2011-08-24 | 2014-04-23 | 长年Tm公司 | Impregnated drilling tools including elongated structures |
| CN103748309B (en) * | 2011-08-24 | 2016-06-22 | 长年Tm公司 | Impregnated boring bar tool including slim-lined construction |
| CN103521764A (en) * | 2013-11-01 | 2014-01-22 | 吉林大学 | High-strength abrasion-resistant powder metallurgy composite material and preparation method thereof |
| CN103521764B (en) * | 2013-11-01 | 2015-12-02 | 吉林大学 | A kind of preparation method of High-strength abrasion-resistant powder metallurgy composite |
| CN105705724A (en) * | 2013-12-13 | 2016-06-22 | 哈里伯顿能源服务公司 | Fiber-reinforced tools for downhole use |
| CN105705724B (en) * | 2013-12-13 | 2019-02-01 | 哈里伯顿能源服务公司 | The fiber reinforcement tool that underground uses |
| CN105705722A (en) * | 2013-12-13 | 2016-06-22 | 哈里伯顿能源服务公司 | Fiber-reinforced tools for downhole use |
| CN105705722B (en) * | 2013-12-13 | 2019-06-21 | 哈里伯顿能源服务公司 | The fiber reinforcement tool that underground uses |
| CN110056313A (en) * | 2018-01-18 | 2019-07-26 | 中石化石油工程技术服务有限公司 | The impregnated diamond composite block of PDC- |
| CN109913682A (en) * | 2019-04-04 | 2019-06-21 | 吉林大学 | Nano silicon carbide niobium/carbon nanotube enhancing diamond composite and preparation method thereof |
| CN116160005A (en) * | 2023-02-20 | 2023-05-26 | 中国矿业大学 | Preparation process of diamond and carbon nano tube composite cutting pick |
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Open date: 20080604 |