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Method for recovering and regenerating waste old Ti(C,N)-based ceramet material

A technology for scrap metal and ceramic materials, applied in the field of powder metallurgy, can solve the problems of pollutants and complex process, and achieve the effect of reducing manufacturing cost, simple process and no production equipment

Active Publication Date: 2014-09-03
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of this technology is complicated, and the product can reach a certain purity after repeated washing and purification; a large amount of pollutants will be generated during the separation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Clean the waste Ti(C,N)-based cermets with three components as described in Table 1 with ES-345 cemented carbide surface cleaning agent, and dry them in the air; crush the above-mentioned waste cermets with a cone inertial crusher, Make the maximum size of the crushed block smaller than 10mm; then use a sealed vibrating pulverizer to further crush the above block into a powder with an average particle size of 150-200 mesh;

[0041] Graphite, Ni, Mo, and FeB powders were added to the above-mentioned crushed waste cermet powders with three components. After adding the above-mentioned powders, the ingredients of the three recycled materials are in parts by mass: 1 # : A component waste cermet powder is 100, the added Ni is 2.4, the added graphite is 0.4, the added Mo is 2.5, and the added FeB is 1.5; 2 # : B component waste metal ceramic powder is 100, added Ni is 2.2, added graphite is 0.4, added Mo is 2.5, added FeB is 1.5; 3 # : C component waste metal-ceramic powder ...

Embodiment 2

[0052] Clean the waste Ti(C,N)-based cermets with three components as described in Table 1 with ES-345 cemented carbide surface cleaning agent, and dry them in the air; crush the above-mentioned waste cermets with a cone inertial crusher, Make the maximum size of the crushed block smaller than 10mm; then use a sealed vibrating pulverizer to further crush the above block into a powder with an average particle size of 150-200 mesh;

[0053] Graphite, Ni, Mo, and FeB powders were added to the above-mentioned crushed waste cermet powders with three components. After adding the above-mentioned powders, the ingredients of the three recycled materials are in parts by mass: 1 # : A component waste cermet powder is 100, the added Ni is 2.88, the added graphite is 0.5, the added Mo is 3.0, and the added FeB is 2.0; 2 # : B component waste cermet powder is 100, the added Ni is 2.64, the added graphite is 0.5, the added Mo is 3.0, and the added FeB is 2.0; 3 # : C component waste cermet...

Embodiment 3

[0064] Clean the waste Ti(C,N)-based cermets with the three components described in Table 1 with ES-345 cemented carbide surface cleaner, and dry them in the air; crush the above-mentioned waste cermets with a cone inertial crusher, Make the maximum size of the crushed block smaller than 10mm; then use a sealed vibrating pulverizer to further crush the above block into a powder with an average particle size of 150-200 mesh;

[0065] Graphite, Ni, Mo, and FeB powders were added to the above-mentioned crushed waste cermet powders with three components. After adding the above-mentioned powders, the ingredients of the three recycled materials are in parts by mass: 1 # : A component waste metal ceramic powder is 100, the added Ni is 3.6, the added graphite is 0.6, the added Mo is 3.5, and the added FeB is 1.8; 2 # : B component waste metal ceramic powder is 100, added Ni is 3.3, added graphite is 0.6, added Mo is 3.5, added FeB is 1.8; 3 # : C component waste cermet powder is 100...

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Abstract

A method for recovering and regenerating a waste old Ti(C,N)-based ceramet material is characterized by comprising the following steps: cleaning the waste old Ti(C,N)-based ceramet material to clean, sequentially employing an inertial cone crusher and a sealed-type vibration crusher to crush the material into a powder with the particle size of 150-200 mesh; independently adding graphite, Ni, Mo, FeB powder into the crushed waste old Ti(C,N)-based ceramet powder; and successively performing ball milling, addition of a forming agent, drying, pelleting, molding, degreasing and vacuum sintering on the above recovered regeneration material, so as to obtain the regenerated Ti(C,N)-based ceramet material. The technology is simple in process and has no special requirements on production equipment, the manufacturing cost is low, environment is not polluted, and the comprehensive mechanical performances of the prepared Ti(C,N)-based ceramet material reach those of a conventional ceramet material.

Description

technical field [0001] The invention relates to a method for recycling and regenerating waste Ti(C,N)-based cermet materials, belonging to the technical field of powder metallurgy. Background technique [0002] Ti(C,N)-based cermet not only has high hardness, wear resistance, red hardness, but also has excellent chemical stability, and the friction coefficient between metal and metal is also very low, which is an ideal upgrade replacement for cemented carbide Material. Compared with WC-Co cemented carbide, it has good red hardness, high temperature strength, and its density (6.0~6.8kg / cm 3 ) than cemented carbide (13.0~15.0kg / cm 3 ) is greatly reduced, and the coefficient of thermal expansion is higher than that of WC-Co cemented carbide; its oxidation resistance and acid and alkali corrosion resistance are excellent, which is much better than that of WC-Co cemented carbide; its wear resistance is excellent, and its stability The wear period is very long, significantly be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/04C22C29/04
Inventor 郑勇吕学鹏周伟赵毅杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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