CN106431361A - Self-lubricated ceramic cutter material added with alumina coated graphene - Google Patents

Self-lubricated ceramic cutter material added with alumina coated graphene Download PDF

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CN106431361A
CN106431361A CN201610928498.7A CN201610928498A CN106431361A CN 106431361 A CN106431361 A CN 106431361A CN 201610928498 A CN201610928498 A CN 201610928498A CN 106431361 A CN106431361 A CN 106431361A
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alumina
cutter material
ceramic cutter
coated graphene
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CN106431361B (en
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邢佑强
吴泽
刘磊
黄鹏
胡涛
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Southeast University
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Abstract

The invention discloses a self-lubricated ceramic cutter material added with alumina coated graphene. The alumina coated graphene is added into powder materials such as micron alumina, nano alumina, micron silicon nitride, micron yttrium oxide and the like to prepare a ceramic cutter material in a mixed manner, and the self-lubricated ceramic cutter material is prepared by using a vacuum pressing and sintering process. The self-lubricated ceramic cutter material is relatively high in hardness, good in breakage toughness, good in bending resistance and good in heat conduction property, and meanwhile is relatively good in self-lubrication property. When being used, the cutter material is capable of forming a continuous lubricating film on the surface of a cutter, so that a self-lubricated function can be achieved within the whole service life.

Description

A kind of self-lubrication ceramic cutter material for adding alumina-coated Graphene
Technical field
The invention belongs to mechanical cutting tool manufacture field, more particularly to a kind of add alumina-coated Graphene from Lubrication ceramic cutting tool material.
Background technology
Ceramic cutting tool material is due to high hardness, high wearability and excellent mechanical behavior under high temperature and chemically stable Property, it is generally used for processing the difficult-to-machine materials such as superhard material.But when carrying out dry cutting using sintex, due to lacking lubrication , there is violent friction in the lubrication of liquid and cooling effect, cause tool wear to be aggravated between cutter and chip and cutter and workpiece, So as to cause cutter life to reduce, machined surface quality deteriorates.Self-lubricating knife tool refers to that cutter material itself has lubrication, subtracts Rub, wear-resistant function, self-lubricating machining can be realized under conditions of no additional lubricating fluid or lubricant.Research finds, contains The self-lubricating knife tool material of kollag can realize the self-lubricating effect in working angles, so as to reduce tool surface friction With abrasion.
Chinese invention patent " application number 200410024226.1 " is reported CaF2Kollag is added to Al2O3/ Al is formed in TiC ceramic cutting tool material2O3/TiC/CaF2Self-lubrication ceramic cutter material, in knife when processing ceramic tools in cutting Tool surface forms continuous lubricating film, so as to realize the self-lubricating function of cutter itself.Chinese invention patent " application number 201410295023.X " reports a kind of preparation method of the self-lubricating knife tool material for adding cladded type calcium fluoride powder.China Patent of invention " application number 201510221746.X " reports a kind of nitrogen for adding alumina-coated hexagonal boron nitride composite powder The preparation method of SiClx base self-lubricating cutter material, so as to realize self-lubricating effect of cutter in working angles.Then due to CaF2And the mechanical property of hexagonal boron nitride is relatively low, in cutter, Dispersed precipitate is likely to result in the reduction of tool mechanical performance, and CaF2 Greasy property is preferable at high temperature for kollag, and when temperature is relatively low, greasy property declines.Graphene be current nature most thin, A kind of intensity highest, heat conductivility preferably novel nano-material, and which has superior greasy property.Chinese document " Graphene/ The preparation of alumina composite powders and its application (Wuhan University Of Technology's master thesis) in castable " reports oxidation The grapheme modified preparation method of aluminum, so as to coat one layer of aluminium oxide in graphenic surface, improves the non-oxidizability of Graphene Energy.The document is that the self-lubrication ceramic cutter material for preparing interpolation alumina-coated Graphene further provides feasibility.
Content of the invention
It is an object of the invention to overcoming above-mentioned the deficiencies in the prior art, there is provided a kind of interpolation alumina-coated Graphene Self-lubrication ceramic cutter material.
The technical solution used in the present invention：A kind of self-lubrication ceramic cutter material for adding alumina-coated Graphene, should The raw material components percent by volume of ceramic cutting tool material is：Micrometer alumina 45-65%, nano aluminium oxide 10-18%, micron nitrogen SiClx 18-27%, alumina-coated Graphene 5-10%, yittrium oxide 0.5-3%, nickel 0.5-1.5%, molybdenum 0.5-1.5%, silicon 0- 0.2%th, manganese 0-0.2%, sulfur 0-0.5%, phosphorus 0-0.1%, the percentage ratio sum of each material is 100%.
Above-mentioned ceramic cutting tool material is prepared by the following method：
(1) according to percent by volume, micrometer alumina 45-65%, nano aluminium oxide 10-18%, micron silicon nitride are taken respectively 18-27%, alumina-coated Graphene 5-10%, yittrium oxide 0.5-3%, nickel 0.5-1.5%, molybdenum 0.5-1.5%, silicon 0- 0.2%th, manganese 0-0.2%, sulfur 0-0.5%, phosphorus 0-0.1%, using appropriate dehydrated alcohol as disperse medium, while being sufficiently stirred for Ultrasonic disperse 30-60min is configured to suspension；
(2) suspension in step (1) is poured in ball grinder, using dehydrated alcohol as medium, ball milling 100-120min； Then take out ball milling liquid to be placed in vacuum drying oven, continuous drying 24-48h at a temperature of 100-150 DEG C；Will after the completion of drying Mixed powder crosses 200 mesh sieves under nitrogen protection, obtains mixed powder；
(3) gained powder in step (2) is loaded graphite grinding tool, using hot pressing sintering method, carries out under nitrogen protection true Empty sintering, it is 30-40MPa that sintering temperature is 1600-1800 DEG C, sintering pressure, is incubated 30-60min, you can is obtained and adds oxidation The self-lubrication ceramic cutter material of aluminum coated graphite alkene.
Beneficial effect：The self-lubrication ceramic cutter material of the interpolation alumina-coated Graphene of the present invention, be with micron meter The aluminium oxide of degree is matrix, by the silicon nitride enhancing of micro-meter scale, the toughened and reinforced and alumina-coated of aluminium oxide of nanoscale The greasy property of Graphene combines, with yittrium oxide as sintering aid, through the ceramic composite that vacuum heating-press sintering is made.Should Cutter material both has higher hardness, fracture toughness, bending strength and good heat-conductive characteristic, while having preferably certainly Lubricating ability.Under the conditions of low temperature and high-temperature machining, the cutter material all can form continuous lubricating film in tool surface, and Alumina-coated Graphene is difficult oxidized such that it is able to realize the self-lubricating function in whole life cycle.
Specific embodiment
With reference to embodiment, the present invention is further illustrated：
Embodiment 1：
A kind of self-lubrication ceramic cutter material for adding alumina-coated Graphene, the raw material components of the ceramic cutting tool material Percent by volume is：Micrometer alumina 58%, nano aluminium oxide 15%, micron silicon nitride 18%, alumina-coated Graphene 6%th, yittrium oxide 1.6%, nickel 0.6%, molybdenum 0.6%, silicon 0.1%, manganese 0.05%, sulfur 0.02%, phosphorus 0.03%.
Above-mentioned ceramic cutting tool material is prepared by the following method：
(1) according to percent by volume take respectively micrometer alumina 58%, nano aluminium oxide 15%, micron silicon nitride 18%, Alumina-coated Graphene 6%, yittrium oxide 1.6%, nickel 0.6%, molybdenum 0.6%, silicon 0.1%, manganese 0.05%, sulfur 0.02%, phosphorus 0.03%, using appropriate dehydrated alcohol as disperse medium, while being sufficiently stirred for, ultrasonic disperse 60min is configured to suspension；
(2) suspension in step (1) is poured in ball grinder, using dehydrated alcohol as medium, ball milling 100min；Then Take out ball milling liquid to be placed in vacuum drying oven, continuous drying 24h at a temperature of 120 DEG C；After the completion of drying, mixed powder is existed 200 mesh sieves were descended in nitrogen protection, obtained mixed powder；
(3) gained powder in step (2) is loaded graphite grinding tool, using hot pressing sintering method, carries out under nitrogen protection true Empty sintering, it is 30MPa that sintering temperature is 1600 DEG C, sintering pressure, is incubated 40min, you can is obtained and adds alumina-coated graphite The self-lubrication ceramic cutter material of alkene.
Embodiment 2：
A kind of self-lubrication ceramic cutter material for adding alumina-coated Graphene, the raw material components of the ceramic cutting tool material Percent by volume is：Micrometer alumina 49%, nano aluminium oxide 18%, micron silicon nitride 20%, alumina-coated Graphene 8.5%th, yittrium oxide 3%, nickel 0.7%, molybdenum 0.7%, silicon 0.04%, manganese 0.02%, sulfur 0.02%, phosphorus 0.02%.
Above-mentioned ceramic cutting tool material is prepared by the following method：
(1) according to percent by volume take respectively micrometer alumina 49%, nano aluminium oxide 18%, micron silicon nitride 20%, Alumina-coated Graphene 8.5%, yittrium oxide 3%, nickel 0.7%, molybdenum 0.7%, silicon 0.04%, manganese 0.02%, sulfur 0.02%, phosphorus 0.02%, using appropriate dehydrated alcohol as disperse medium, while being sufficiently stirred for, ultrasonic disperse 50min is configured to suspension；
(2) suspension in step (1) is poured in ball grinder, using dehydrated alcohol as medium, ball milling 120min；Then Take out ball milling liquid to be placed in vacuum drying oven, continuous drying 36h at a temperature of 150 DEG C；After the completion of drying, mixed powder is existed 200 mesh sieves were descended in nitrogen protection, obtained mixed powder；
(3) gained powder in step (2) is loaded graphite grinding tool, using hot pressing sintering method, carries out under nitrogen protection true Empty sintering, it is 40MPa that sintering temperature is 1800 DEG C, sintering pressure, is incubated 50min, you can is obtained and adds alumina-coated graphite The self-lubrication ceramic cutter material of alkene.
It should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention, Some improvements and modifications can also be made, these improvements and modifications also should be regarded as protection scope of the present invention.In the present embodiment not Clearly each ingredient all can use prior art to be realized.

Claims (1)

1. a kind of add alumina-coated Graphene self-lubrication ceramic cutter material, it is characterised in that：The ceramic cutting tool material Raw material components percent by volume be：Micrometer alumina 45-65%, nano aluminium oxide 10-18%, micron silicon nitride 18-27%, oxygen Change aluminum coated graphite alkene 5-10%, yittrium oxide 0.5-3%, nickel 0.5-1.5%, molybdenum 0.5-1.5%, silicon 0-0.2%, manganese 0-0.2%, sulfur 0- 0.5%, phosphorus 0-0.1%, the percentage ratio sum of each material is 100%；
The preparation method of the self-lubrication ceramic cutter material for adding alumina-coated Graphene, comprises the following steps：
(1) according to percent by volume, micrometer alumina 45-65%, nano aluminium oxide 10-18%, micron silicon nitride 18- are taken respectively 27%th, alumina-coated Graphene 5-10%, yittrium oxide 0.5-3%, nickel 0.5-1.5%, molybdenum 0.5-1.5%, silicon 0-0.2%, manganese 0- 0.2%th, sulfur 0-0.5%, phosphorus 0-0.1%, using dehydrated alcohol as disperse medium, ultrasonic disperse 30-60 min while being sufficiently stirred for It is configured to suspension；
(2) suspension in step (1) is poured in ball grinder, using dehydrated alcohol as medium, ball milling 100-120 min； Then take out ball milling liquid to be placed in vacuum drying oven, continuous drying 24-48 h at a temperature of 100-150 DEG C；After the completion of drying Mixed powder is crossed 200 mesh sieves under nitrogen protection, obtains mixed powder；
(3) gained powder in step (2) is loaded graphite grinding tool, using hot pressing sintering method, carries out vacuum under nitrogen protection Sintering, it is 30-40 MPa that sintering temperature is 1600-1800 DEG C, sintering pressure, is incubated 30-60 min, you can is obtained and adds oxidation The self-lubrication ceramic cutter material of aluminum coated graphite alkene.
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Cited By (7)

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CN107262725A (en) * 2017-05-11 2017-10-20 昆山钰立电子科技股份有限公司 Blood bag process for making blade
CN107555965A (en) * 2017-07-31 2018-01-09 齐鲁工业大学 Add aluminum oxide base ceramics cutting tool material of graphene coated alumina composite powders and preparation method thereof
CN108165988A (en) * 2018-01-26 2018-06-15 东南大学 Gradient coating cutter and preparation method thereof
CN109055827A (en) * 2018-08-28 2018-12-21 四川中物红宇科技有限公司 For enhancing the graphene Coating Materials of surface hardness and enhancing the method for die surface hardness
CN109721361A (en) * 2019-01-29 2019-05-07 齐鲁工业大学 Add the self-lubrication ceramic cutter material and preparation method thereof of metallic cover nano solid lubricant composite granule
CN113698182A (en) * 2021-08-05 2021-11-26 杭州大和江东新材料科技有限公司 Anti-static alumina ceramic material and preparation method thereof
CN113968735A (en) * 2021-10-22 2022-01-25 深圳市毅克利刀具有限公司 Preparation method of wide-temperature-range self-lubricating cutter with good thermal conductivity

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CN103058667A (en) * 2013-01-17 2013-04-24 山东轻工业学院 Nano solid lubricant and nano ceramic grain composite modified cutter material and preparation method thereof
CN106007680A (en) * 2016-05-23 2016-10-12 齐鲁工业大学 Graphene toughened Al2O3/Ti(C,N) nano composite ceramic cutter material and preparation method thereof

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CN101486578A (en) * 2009-02-27 2009-07-22 山东大学 Silicon nitride based nano complex gradient function ceramic tool material and preparation thereof
CN103058667A (en) * 2013-01-17 2013-04-24 山东轻工业学院 Nano solid lubricant and nano ceramic grain composite modified cutter material and preparation method thereof
CN106007680A (en) * 2016-05-23 2016-10-12 齐鲁工业大学 Graphene toughened Al2O3/Ti(C,N) nano composite ceramic cutter material and preparation method thereof

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CN107262725A (en) * 2017-05-11 2017-10-20 昆山钰立电子科技股份有限公司 Blood bag process for making blade
CN107555965A (en) * 2017-07-31 2018-01-09 齐鲁工业大学 Add aluminum oxide base ceramics cutting tool material of graphene coated alumina composite powders and preparation method thereof
CN108165988A (en) * 2018-01-26 2018-06-15 东南大学 Gradient coating cutter and preparation method thereof
CN108165988B (en) * 2018-01-26 2019-08-20 东南大学 Gradient coating cutter and preparation method thereof
CN109055827A (en) * 2018-08-28 2018-12-21 四川中物红宇科技有限公司 For enhancing the graphene Coating Materials of surface hardness and enhancing the method for die surface hardness
CN109721361A (en) * 2019-01-29 2019-05-07 齐鲁工业大学 Add the self-lubrication ceramic cutter material and preparation method thereof of metallic cover nano solid lubricant composite granule
CN109721361B (en) * 2019-01-29 2021-09-07 齐鲁工业大学 Self-lubricating ceramic cutter material added with metal-coated nano solid lubricant composite powder and preparation method thereof
CN113698182A (en) * 2021-08-05 2021-11-26 杭州大和江东新材料科技有限公司 Anti-static alumina ceramic material and preparation method thereof
CN113968735A (en) * 2021-10-22 2022-01-25 深圳市毅克利刀具有限公司 Preparation method of wide-temperature-range self-lubricating cutter with good thermal conductivity

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