CN105986161A - Cermet material and preparation method - Google Patents
Cermet material and preparation method Download PDFInfo
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- CN105986161A CN105986161A CN201610385206.XA CN201610385206A CN105986161A CN 105986161 A CN105986161 A CN 105986161A CN 201610385206 A CN201610385206 A CN 201610385206A CN 105986161 A CN105986161 A CN 105986161A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
- B22F3/101—Changing atmosphere
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
- C22C1/051—Making hard metals based on borides, carbides, nitrides, oxides or silicides; Preparation of the powder mixture used as the starting material therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a cermet material and a preparation method. The cermet material mainly comprises the component materials of 8 to 20 parts of tungsten carbide, 1 to 3 parts of zirconium carbide, 8 to 20 parts of titanium nitride, 20 to 60 parts of titanium carbide, 8 to 20 parts of molybdenum carbide, 1 to 2 parts of alumina, 3 to 5 parts of silicon nitride, 0.1 to 0.5 part of boron nitride, 1 to 2 parts of carbon, 5 to 15 parts of nickel, 3 to 8 parts of cobalt, 4 to 8 parts of chromium, 0.5 to 2 parts of lanthanum oxide, 0.1 to 1 part of neodymium oxide, 0.1 to 1 part of cerium oxide and 0.1 to 1 part of praseodymium oxide. Powder preparation, blank preparation, preforming, vacuum sintering, aftertreatment and the like are carried out, technological parameters are reasonably controlled, and finally the tool material is obtained. The cermet material and the preparation method have the advantages that operation is easy, and products have chemical stability and good toughness, are low in degree of deformation after resisting long-time high temperature and high pressure and the like.
Description
Technical field
The present invention relates to ceramic material field, be specifically related to a kind of cermet material and preparation method.
Background technology
Currently mainly cutter material is high-speed steel and hard alloy, conventional melt high-speed steel tool high temperature hardness is preferable, but its bending strength, toughness is relatively low, traditional carbide tool price is higher, it is bigger to main component tungsten resource demand, development has some limitations, ceramic-metallic performance is between pottery and tungsten carbide serial carbide alloy, hardness ratio carbide tool is high, antioxygenic property is good, and fracture toughness and bending strength are higher than nonmetallic ceramics cutter, it had both maintained the high intensity of pottery, the characteristics such as high rigidity, there are again preferable metal toughness and plasticity etc., but the bending strength of sintex, thermal conductivity, toughness etc. are the lowest, big in the temperature difference or when having greater impact load, cutter easily lost efficacy.
Ti(C, N) based ceramic metal is a kind of novel cermet material, there is density low, the advantages such as refractory metal can be cut, obtained the biggest development in recent years, Ti(C, N) based ceramic metal is used as cutter material and is suitable for cast iron, ordinary steel, the high-speed cutting of glass hard steel and DRY CUTTING, serviceability is better than hard alloy and cutting tool coated with hard alloy, but along with cutting efficiency, cutting accuracy, the requirement of clipping time improves constantly, existing product can not meet hardness, wearability, red hardness, particularly sintex is to bending strength, thermal conductivity, the requirement of the multiple performance such as toughness.
Atomization is a kind of method of typical physics powder process, by high-pressure atomization medium, by gas or water intense impact liquid stream, or by centrifugal being allowed to crush, cooled and solidified realizes powder and prepares.
Powder under vacuum sintering is carry out under the conditions of subatmospheric power powder sintered, the major advantage of vacuum-sintering is: decrease the harmful components in atmosphere (water, oxygen, the nitrogen) harmful effect to product, improve the liquid phase wettability to solid phase, be conducive to shrinking and improving the tissue of alloy, contribute to impurity or the eliminatings of its oxide such as silicon, aluminum, magnesium, calcium, playing the effect of scavenging material, the contraction in acceleration of sintering later stage has obvious effect.
Summary of the invention
The invention provides a kind of cermet material and preparation method, cermet material main component is made up of following material: tungsten carbide: 8-20 part, zirconium carbide: 1-3 part, titanium nitride: 8-20 part, titanium carbide: 20-60 part, molybdenum carbide: 8-20 part, aluminium oxide: 1-2 part, silicon nitride: 3-5 part, boron nitride: 0.1-0.5 part, carbon: 1-2 part, nickel: 5-15 part, cobalt: 3-8 part, chromium: 4-8 part, lanthana: 0.5-2 part, Dineodymium trioxide: 0.1-1 part, cerium oxide: 0.1-1 part, praseodymium oxide: 0.1-1 part.
The main preparation process of a kind of cermet material and preparation method is that prepared by powder body, prepared by blank, preforming, vacuum-sintering, post processing etc., specifically comprise the following steps that
(1) according to component requirements, proportionally utilizing high accuracy balance to weigh said components, carry out drying and processing in an oven, described said components granularity is 3-5 micron, and purity is more than 99%；
(2) using atomization to carry out mixed powder to prepare, be molded into mixture powder through atomization, and carry out classification and dried in vacuum melting furnace after dry each component element fusing, described classification uses standard screen cloth to sieve；
(3) in component powders, add a certain amount of plasticiser, make granularity and relatively slightly and there is certain false granularity grating, the granule of good fluidity, described agglomerate particle size about 150-750 micron；
(4) granule is inserted vacuum-sintering system, be passed through noble gas and carry out preliminary compression molding, then process under 300-600 degrees celsius；
(5) being finally sintered by the product of preliminary compression molding, the temperature of sintering is 1350-1550 degree Celsius, and the sintered heat insulating time is 1-5 hour.
The invention have benefit that:
(1), use atomization physics powder process, by high-pressure atomization medium, realize powder by gas intense impact liquid stream cooled and solidified and prepare, there is percentage of impurity low, provide powerful guarantee for subsequent product quality；
(2), product surface fineness is good, precision size, can produce multiple composite and even tissue without trachoma, shrinkage cavity etc., and process energy consumption consumes little, relatively inexpensive；
(3), it is passed through noble gas at initial stage of sintering, ensure firing rate and the uniformity of furnace temperature of vacuum-sintering process, recyclegas cooling means is used to improve the rate of cooling of vacuum-sintering during cooling, it is to avoid the gases such as component element and hydrogen, oxygen, nitrogen react；
(4), reasonable disposition component element, suitably increase rare earth oxide element, improve ceramet group properties of product, promote chemical stability bending strength, thermal conductivity and toughness.
Detailed description of the invention
Embodiment 1
The invention provides a kind of cermet material and preparation method, cermet material main component is made up of following material: tungsten carbide: 8 parts, zirconium carbide: 1 part, titanium nitride: 8 parts, titanium carbide: 56.8 parts, molybdenum carbide: 8 parts, aluminium oxide: 1 part, silicon nitride: 3 parts, boron nitride: 0.1 part, carbon: 1.2 parts, nickel: 5 parts, cobalt: 3 parts, chromium: 4 parts, lanthana: 0.5 part, Dineodymium trioxide: 0.2 part, cerium oxide: 0.1 part, praseodymium oxide: 0.1 part.
The main preparation process of a kind of cermet material and preparation method is that prepared by powder body, prepared by blank, preforming, vacuum-sintering, post processing etc., specifically comprise the following steps that
(1) according to component requirements, proportionally utilizing high accuracy balance to weigh said components, carry out drying and processing in an oven, described said components granularity is 3 microns, and purity is more than 99%；
(2) using atomization to carry out mixed powder to prepare, be molded into mixture powder through atomization, and carry out classification and dried in vacuum melting furnace after dry each component element fusing, described classification uses standard screen cloth to sieve；
(3) adding a certain amount of plasticiser in component powders, make granularity and relatively slightly and have certain false granularity grating, the granule of good fluidity, described agglomerate particle size is 150 microns；
(4) granule is inserted vacuum-sintering system, be passed through noble gas and carry out preliminary compression molding, then process under 300 degrees celsius；
(5) being finally sintered by the product of preliminary compression molding, the temperature of sintering is 1350 degrees Celsius, and the sintered heat insulating time is 3 hours.
Embodiment 2
The invention provides a kind of cermet material and preparation method, cermet material main component is made up of following material: tungsten carbide: 10 parts, zirconium carbide: 2 parts, titanium nitride: 10 parts, titanium carbide: 36.7 parts, molybdenum carbide: 10 parts, aluminium oxide: 1.5 parts, silicon nitride: 4 parts, boron nitride: 0.3 part, carbon: 1.5 parts, nickel: 10 parts, cobalt: 5 parts, chromium: 6 parts, lanthana: 1 part, Dineodymium trioxide: 1 part, cerium oxide: 0.5 part, praseodymium oxide: 0.5 part.
The main preparation process of a kind of cermet material and preparation method is that prepared by powder body, prepared by blank, preforming, vacuum-sintering, post processing etc., specifically comprise the following steps that
(1) according to component requirements, proportionally utilizing high accuracy balance to weigh said components, carry out drying and processing in an oven, described said components granularity is 4 microns, and purity is more than 99%；
(2) using atomization to carry out mixed powder to prepare, be molded into mixture powder through atomization, and carry out classification and dried in vacuum melting furnace after dry each component element fusing, described classification uses standard screen cloth to sieve；
(3) adding a certain amount of plasticiser in component powders, make granularity and relatively slightly and have certain false granularity grating, the granule of good fluidity, described agglomerate particle size is 500 microns；
(4) granule is inserted vacuum-sintering system, be passed through noble gas and carry out preliminary compression molding, then process under 500 degrees celsius；
(5) being finally sintered by the product of preliminary compression molding, the temperature of sintering is 1450 degrees Celsius, and the sintered heat insulating time is 5 hours.
Embodiment 3
The invention provides a kind of cermet material and preparation method, cermet material main component is made up of following material: tungsten carbide: 8 parts, zirconium carbide: 1 part, titanium nitride: 8 parts, titanium carbide: 49.3 parts, molybdenum carbide: 8 parts, aluminium oxide: 1 part, silicon nitride: 5 parts, boron nitride: 0.5 part, carbon: 2 parts, nickel: 6 parts, cobalt: 4 parts, chromium: 5 parts, lanthana: 1 part, Dineodymium trioxide: 0.6 part, cerium oxide: 0.3 part, praseodymium oxide: 0.3 part.
The main preparation process of a kind of cermet material and preparation method is that prepared by powder body, prepared by blank, preforming, vacuum-sintering, post processing etc., specifically comprise the following steps that
(1) according to component requirements, proportionally utilizing high accuracy balance to weigh said components, carry out drying and processing in an oven, described said components granularity is 5 microns, and purity is more than 99%；
(2) using atomization to carry out mixed powder to prepare, be molded into mixture powder through atomization, and carry out classification and dried in vacuum melting furnace after dry each component element fusing, described classification uses standard screen cloth to sieve；
(3) adding a certain amount of plasticiser in component powders, make granularity and relatively slightly and have certain false granularity grating, the granule of good fluidity, described agglomerate particle size is 700 microns；
(4) granule is inserted vacuum-sintering system, be passed through noble gas and carry out preliminary compression molding, then process under 600 degrees celsius；
(5) being finally sintered by the product of preliminary compression molding, the temperature of sintering is 1530 degrees Celsius, and the sintered heat insulating time is 5 hours.
Claims (2)
1. a cermet material and preparation method, it is characterised in that main component is made up of following material: tungsten carbide: 8-20 part, zirconium carbide: 1-3 part, titanium nitride: 8-20 part, titanium carbide: 20-60 part, molybdenum carbide: 8-20 part, aluminium oxide: 1-2 part, silicon nitride: 3-5 part, boron nitride: 0.1-0.5 part, carbon: 1-2 part, nickel: 5-15 part, cobalt: 3-8 part, chromium: 4-8 part, lanthana: 0.5-2 part, Dineodymium trioxide: 0.1-1 part, cerium oxide: 0.1-1 part, praseodymium oxide: 0.1-1 part.
The most according to claim 1, a kind of cermet material and preparation method, it is characterised in that main preparation process is that prepared by powder body, prepared by blank, preforming, vacuum-sintering, post processing etc., specifically comprise the following steps that
(1) according to component requirements, proportionally utilizing high accuracy balance to weigh said components, carry out drying and processing in an oven, described said components granularity is 3-5 micron, and purity is more than 99%；
(2) using atomization to carry out mixed powder to prepare, be molded into mixture powder through atomization, and carry out classification and dried in vacuum melting furnace after dry each component element fusing, described classification uses standard screen cloth to sieve；
(3) in component powders, add a certain amount of plasticiser, make granularity and relatively slightly and there is certain false granularity grating, the granule of good fluidity, described agglomerate particle size about 150-750 micron；
(4) granule is inserted vacuum-sintering system, be passed through noble gas and carry out preliminary compression molding, then process under 300-600 degrees celsius；
(5) being finally sintered by the product of preliminary compression molding, the temperature of sintering is 1350-1550 degree Celsius, and the sintered heat insulating time is 1-5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610385206.XA CN105986161A (en) | 2016-06-03 | 2016-06-03 | Cermet material and preparation method |
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| CN201610385206.XA CN105986161A (en) | 2016-06-03 | 2016-06-03 | Cermet material and preparation method |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058849A (en) * | 2017-06-26 | 2017-08-18 | 扬中市第蝶阀厂有限公司 | It is a kind of to be used to make cermet of valve body and preparation method thereof |
| CN107779717A (en) * | 2017-09-20 | 2018-03-09 | 苏州瑞森硬质合金有限公司 | Light-high-strength titanium-based fine grain hard alloy bar material and its preparation technology |
| CN107805753A (en) * | 2017-11-29 | 2018-03-16 | 成都创客之家科技有限公司 | A kind of preparation method of silicon nitride base metal-ceramic material |
| CN108516808A (en) * | 2018-07-10 | 2018-09-11 | 哈尔滨工业大学 | The method that high-temperature fusant aeroponics prepare alumina-based nano eutectic composite micro-powder |
| CN108675773A (en) * | 2018-07-10 | 2018-10-19 | 哈尔滨工业大学 | A kind of method that conbustion synthesis aerosol method prepares alumina-based nano eutectic composite micro-powder |
| CN108793980A (en) * | 2018-07-10 | 2018-11-13 | 哈尔滨工业大学 | A kind of method that conbustion synthesis water fog method prepares alumina base solid solution ceramic powder |
| WO2020010666A1 (en) * | 2018-07-10 | 2020-01-16 | 哈尔滨工业大学 | Method for preparing alumina-based solid solution ceramic powder by using aluminum oxygen combustion synthesis water mist process |
| CN111195724A (en) * | 2020-01-19 | 2020-05-26 | 宜昌永鑫精工科技股份有限公司 | Ti (C, N) -based cermet nitrogen atmosphere sintering process |
| CN111774558A (en) * | 2020-06-19 | 2020-10-16 | 江苏兴湖耐火材料有限公司 | Method for manufacturing tundish nozzle with excellent thermal shock stability for continuous casting |
| CN112676565A (en) * | 2020-12-17 | 2021-04-20 | 苏州市吴中喷丝板有限公司 | Production method of superhard cermet material superfine spinneret plate |
| CN114014692A (en) * | 2021-12-16 | 2022-02-08 | 武汉新科冶金设备制造有限公司 | High red hard cermet blade |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107058849A (en) * | 2017-06-26 | 2017-08-18 | 扬中市第蝶阀厂有限公司 | It is a kind of to be used to make cermet of valve body and preparation method thereof |
| CN107779717B (en) * | 2017-09-20 | 2019-05-14 | 苏州瑞森硬质合金有限公司 | Light-high-strength titanium-based fine grain hard alloy bar material and its preparation process |
| CN107779717A (en) * | 2017-09-20 | 2018-03-09 | 苏州瑞森硬质合金有限公司 | Light-high-strength titanium-based fine grain hard alloy bar material and its preparation technology |
| CN107805753A (en) * | 2017-11-29 | 2018-03-16 | 成都创客之家科技有限公司 | A kind of preparation method of silicon nitride base metal-ceramic material |
| CN108675773B (en) * | 2018-07-10 | 2021-07-06 | 哈尔滨工业大学 | Method for preparing aluminum oxide-based nano eutectic composite micro powder by combustion synthesis aerosol method |
| CN108793980A (en) * | 2018-07-10 | 2018-11-13 | 哈尔滨工业大学 | A kind of method that conbustion synthesis water fog method prepares alumina base solid solution ceramic powder |
| CN108675773A (en) * | 2018-07-10 | 2018-10-19 | 哈尔滨工业大学 | A kind of method that conbustion synthesis aerosol method prepares alumina-based nano eutectic composite micro-powder |
| WO2020010666A1 (en) * | 2018-07-10 | 2020-01-16 | 哈尔滨工业大学 | Method for preparing alumina-based solid solution ceramic powder by using aluminum oxygen combustion synthesis water mist process |
| US11345642B2 (en) | 2018-07-10 | 2022-05-31 | Harbin Jehot Advanced Materials Co., Ltd. | Method for preparing alumina-based solid solution ceramic powder by using aluminum oxygen combustion synthesis water mist process |
| CN108516808B (en) * | 2018-07-10 | 2021-03-02 | 哈尔滨工业大学 | Method for preparing aluminum oxide-based nano eutectic composite micro powder by high-temperature melt aerosol method |
| JP7011133B2 (en) | 2018-07-10 | 2022-01-26 | 哈爾濱晶火新材料有限公司 | A method for producing an alumina-based solid solution ceramic powder by combustion synthesis of aluminum and oxygen and water atomization method. |
| CN108516808A (en) * | 2018-07-10 | 2018-09-11 | 哈尔滨工业大学 | The method that high-temperature fusant aeroponics prepare alumina-based nano eutectic composite micro-powder |
| CN111195724A (en) * | 2020-01-19 | 2020-05-26 | 宜昌永鑫精工科技股份有限公司 | Ti (C, N) -based cermet nitrogen atmosphere sintering process |
| CN111774558B (en) * | 2020-06-19 | 2021-12-14 | 江苏兴湖耐火材料有限公司 | Method for manufacturing tundish nozzle with excellent thermal shock stability for continuous casting |
| CN111774558A (en) * | 2020-06-19 | 2020-10-16 | 江苏兴湖耐火材料有限公司 | Method for manufacturing tundish nozzle with excellent thermal shock stability for continuous casting |
| CN112676565B (en) * | 2020-12-17 | 2021-09-07 | 苏州市吴中喷丝板有限公司 | Production method of superhard cermet material superfine spinneret plate |
| CN112676565A (en) * | 2020-12-17 | 2021-04-20 | 苏州市吴中喷丝板有限公司 | Production method of superhard cermet material superfine spinneret plate |
| CN114014692A (en) * | 2021-12-16 | 2022-02-08 | 武汉新科冶金设备制造有限公司 | High red hard cermet blade |
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Application publication date: 20161005 |
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