High-wear-resistance Ti (C, N)-based metal ceramic cutter material and preparation method thereof

A ceramic tool and base metal technology, applied in the field of cermets, can solve the problems of poor hardness of cermet wear-resistant materials, and achieve the effects of improving macroscopic mechanical properties, good fluidity, and improving mechanical properties and wear resistance.

Pending Publication Date: 2021-07-27
HANGZHOU POLYTECHNIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the hardness of the cermet wear-resistant

Method used

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  • High-wear-resistance Ti (C, N)-based metal ceramic cutter material and preparation method thereof

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Embodiment 1

[0029] A kind of highly wear-resistant Ti(C,N)-based cermet tool material and its preparation method

[0030] The preparation method of highly wear-resistant Ti(C,N)-based cermet tool material comprises the following steps:

[0031] Step S10, put the tungsten carbide powder in the cleaning agent, raise the temperature to 72°C and perform ultrasonic treatment for 18 minutes, wash, filter, and dry, then put it in a nitric acid solution with a concentration of 58%, oscillate ultrasonically for 20 minutes, and wash until After neutralization, put it in an oven and dry at 56°C to obtain pretreated tungsten carbide powder; the formula of the above cleaning agent includes: sodium hydroxide 15g / L, sodium phosphate 9g / L, sodium carbonate 16g / L;

[0032] Step S20, prepare the plating solution: add 10g of boric acid to 100ml of water, heat and stir in a water bath at 65°C for 5 minutes to obtain a boric acid solution, dissolve 40g of cobalt chloride hexahydrate in 200ml of water, add the...

Embodiment 2

[0038] A kind of highly wear-resistant Ti(C,N)-based cermet tool material and its preparation method

[0039] The preparation method of highly wear-resistant Ti(C,N)-based cermet tool material comprises the following steps:

[0040] Step S10, put the tungsten carbide powder in the cleaning agent, raise the temperature to 65° C., perform ultrasonic treatment for 10 minutes, wash, filter, and dry, then put it in a nitric acid solution with a concentration of 55%, oscillate ultrasonically for 15 minutes, and wash until After neutralization, put it in an oven and dry at 50°C to obtain pretreated tungsten carbide powder; the formula of the above cleaning agent includes: sodium hydroxide 12g / L, sodium phosphate 6g / L, sodium carbonate 12g / L;

[0041] Step S20, prepare the plating solution: add 10g of boric acid to 100ml of water, heat and stir in a water bath at 65°C for 3 minutes to obtain a boric acid solution, dissolve 35g of cobalt chloride hexahydrate in 200ml of water, add the ...

Embodiment 3

[0047] A kind of highly wear-resistant Ti(C,N)-based cermet tool material and its preparation method

[0048] The preparation method of highly wear-resistant Ti(C,N)-based cermet tool material comprises the following steps:

[0049] Step S10, put the tungsten carbide powder in the cleaning agent, raise the temperature to 78°C for ultrasonic treatment for 25 minutes, wash, filter, and dry, then put it in a nitric acid solution with a concentration of 62%, oscillate ultrasonically for 25 minutes, and wash until After neutralization, put it in an oven and dry at 62°C to obtain pretreated tungsten carbide powder; the formula of the above cleaning agent includes: sodium hydroxide 18g / L, sodium phosphate 12g / L, sodium carbonate 20g / L;

[0050] Step S20, prepare the plating solution: add 10g of boric acid to 100ml of water, heat and stir in a water bath at 65°C for 8 minutes to obtain a boric acid solution, dissolve 45g of cobalt chloride hexahydrate in 200ml of water, add the boric ...

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Abstract

The invention discloses a high-wear-resistance Ti (C, N)-based metal ceramic cutter material and a preparation method thereof. The preparation method comprises the steps that cobalt serves as an anode, a niobium plate serves as a cathode, intermittent sedimentation electro-deposition is carried out, and Co/WC composite powder is obtained; raw materials are subjected to ball-milling mixing and drying, and mixed powder is obtained; a gasoline rubber solution is added into the mixed powder, grinding and mixing are carried out, and then compression molding is carried out; and a pressed sample is put into a vacuum furnace, the pressed sample is heated to 820 DEG C for the first time, pre-sintering is carried out, after the pressed sample is cooled to room temperature, the pressed sample is heated for the second time, and vacuum sintering is carried out to obtain the high-wear-resistance Ti (C, N)-based metal ceramic cutter material. According to the high-wear-resistance Ti (C, N)-based metal ceramic cutter material and the preparation method thereof, the uniformly-coated cobalt-coated tungsten carbide composite powder is added to the prepared metal ceramic cutter material, and the surface of WC is uniformly coated with Co, so that tungsten carbide has the characteristics of metal and ceramic, better fluidity is achieved, the characteristic that tiny particles are prone to agglomerate is improved, and then the compactness and wear resistance of a product are improved.

Description

technical field [0001] The invention relates to the technical field of cermets, in particular to a highly wear-resistant Ti(C,N)-based cermet tool material and a preparation method thereof. Background technique [0002] Ti(C,N)-based cermets are widely used in mechanical processing and molds due to their high hardness and wear resistance, excellent chemical stability and creep resistance, and low friction coefficient. There are a wide range of applications. Although Ti(C,N)-based cermets have achieved excellent performance in many aspects, there are still problems of poor strength and chipping resistance, and the raw materials of cermet materials are tiny particles, which are easy to prepare and synthesize. There is agglomeration phenomenon, which affects the mixing and the density of the product, which in turn leads to a decrease in wear resistance. [0003] Chinese patent CN107142407A discloses a method for preparing a surface self-lubricating Ti(C,N)-based cermet wear-r...

Claims

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Application Information

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IPC IPC(8): C22C1/05C22C1/10C22C29/00C22C32/00B22F1/02C25D3/12C25D5/54B22F3/02B22F3/10B22F9/04
CPCC22C1/051C22C29/02C22C29/005C22C1/05C22C1/0433C22C1/045C22C19/057C22C27/04C22C32/0047C25D5/54C25D3/12B22F9/04B22F3/02B22F3/1017B22F3/1007B22F2009/043B22F1/17
Inventor 谭小红张晓东苏灏鼎严毅君陈禹豪
Owner HANGZHOU POLYTECHNIC
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