High-temperature wear-resistant and corrosion-resistant metal ceramic material, composite roller and preparation method of composite roller

A cermet, high-temperature wear-resistant technology, applied in the field of cermet alloy and cermet roll ring, can solve the problems of low corrosion resistance and oxidation resistance, sensitivity to thermal cracks, and low roll life, and achieve the cermet ring grinding process Effects of simplification, high red hardness, and reduced alloy manufacturing cost

Active Publication Date: 2022-07-12
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the low service life of the above-mentioned existing steel castings and the high density when WC-Co cemented carbide is used as the outer roll ring , up to 14.78g / cm3, low corrosion resistance and oxidation resistance, technical problems sensitive to thermal cracks, the present invention provides high-temperature wear-resistant and corrosion-resistant cermet material, composite roll and its preparation method

Method used

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  • High-temperature wear-resistant and corrosion-resistant metal ceramic material, composite roller and preparation method of composite roller
  • High-temperature wear-resistant and corrosion-resistant metal ceramic material, composite roller and preparation method of composite roller
  • High-temperature wear-resistant and corrosion-resistant metal ceramic material, composite roller and preparation method of composite roller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A Ti(C,N)-based cermet material, which is composed of 60wt% Ti(CN) powder, 3wt% TiC powder, 12wt% WC powder, 2.0wt% TiN powder, 3.5wt% ZrNbC powder, 1wt% Mo 2 C powder, 1.5wt% Cr 3 C 2 Powder, 17wt% Co-Ni powder. Among them, C and N in the Ti(CN) powder are C / N atomic ratio 5 / 5.

[0059] Among them, the powder particle size FUSS of Ti(CN) is 3.2 microns, that of TiC is 2.0 microns, that of TiN is 1.8 microns, that of WC is 2.2 microns, and that of Mo is 2.2 microns. 2 The powder particle size FUSS of C is 2.0 microns, the powder particle size FUSS of ZrNbC is 1.9 microns, and the Cr 3 C 2 The powder particle size FUSS of Co-Ni is 2.0 microns, and the powder particle size FUSS of Co-Ni is 2.0 microns.

[0060] The outer ring of the roller ring made of the high-temperature wear-resistant and corrosion-resistant cermet material,

[0061] The preparation method of the roller ring outer ring with holes includes the following steps:

[0062] Step A, according to the ab...

Embodiment 2

[0071] A Ti(C,N)-based cermet material, the composition of which is 45wt% Ti(CN) powder, 4wt% TiC powder, 21wt% WC powder, 1.5wt% TiN powder, 4.0wt% ZrNbC powder, 4.0wt% Mo 2 C powder, 3.5wt% Cr 3 C 2 Powder; 17 wt% Co-Ni powder. Among them, C and N in the Ti(CN) powder are C / N atomic ratio 5 / 5.

[0072] The powder particle size FUSS of Ti(CN) is 1.8 microns, that of TiC is 1.6 microns, that of TiN is 1.2 microns, that of WC is 1.5 microns, and that of Mo is 1.5 microns. 2 The powder particle size FUSS of C is 1.8 μm, the powder particle size FUSS of ZrNbC is 1.1 μm, Cr 3 C 2 The powder particle size FUSS of Co-Ni is 1.3 microns, and the powder particle size FUSS of Co-Ni is 1.6 microns.

[0073] The preparation method of the roller ring outer ring with holes includes the following steps:

[0074] Step A, according to the above-mentioned mass percentage, weigh the ingredients of the pressed mixed powder and put it into the ball mill tank, and then add a dispersant, a mo...

Embodiment 3

[0083] A Ti(C,N)-based cermet material, the composition of which is 50wt% TiCN powder, 3.5wt% TiC powder, 8.5wt% TiN powder; 12.5wt% WC powder, 4.5wt% Mo 2 C powder, 2.5wt% ZrNbC powder, 3wt% Cr 3 C 2 Powder, 15.5wt% Co-Ni powder. Among them, C and N in the Ti(CN) powder are C / N atomic ratio 5 / 5.

[0084] The powder particle size FUSS of Ti(CN) is 2.5 microns, that of TiC is 1.5 microns, that of TiN is 1.2 microns, that of WC is 1.3 microns, and that of Mo is 1.3 microns. 2 The powder particle size FUSS of C is 1.6 μm, the powder particle size FUSS of ZrNbC is 1.2 μm, and the Cr 3 C 2 The powder particle size FUSS of Co-Ni is 1.1 μm, and the powder particle size FUSS of Co-Ni is 1.8 μm.

[0085] The preparation method of the roller ring outer ring with holes includes the following steps:

[0086] Step A, according to the above-mentioned mass percentage, weigh the ingredients of the pressed mixed powder and put it into the ball mill tank, and then add a dispersant, a mold...

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Abstract

The invention discloses a high-temperature wear-resistant and corrosion-resistant metal ceramic material, a composite roller and a preparation method of the composite roller, belongs to the technical field of metal ceramic alloys, and solves the technical problems that an outer layer of a roller collar of an existing roller is low in corrosion resistance and oxidation resistance and sensitive to hot cracks, the high-temperature wear-resistant and corrosion-resistant metal ceramic material comprises pressing mixed powder, and ingredients of the pressing mixed powder comprise TiCN, TiC and TiN; the alloy is prepared from WC, Mo2C, ZrNbC, Cr3C2 and Co-Ni; the high-temperature wear-resistant and corrosion-resistant metal ceramic roll collar outer ring has high wear resistance, high heat conductivity and corrosion resistance and excellent comprehensive performance. The low-alloy steel inner ring is easy to machine, the machining economy is improved, the metal ceramic composite roller is formed by assembling the outer layer and the inner layer, the grinding machining procedure of the metal ceramic roller ring is simplified, meanwhile, the alloy manufacturing cost is reduced, assembly is convenient, and the metal ceramic composite roller is suitable for batch production.

Description

technical field [0001] The present invention relates to the technical field of metal-ceramic alloys, and more particularly to the technical field of metal-ceramic roller rings. Background technique [0002] After the advent of the first Morgan 45° high-speed wire rod finishing mill with a new structure in the 1960s, the continuous innovation in the field of wire rod production in the non-ferrous metallurgy industry has greatly improved the rolling speed of wire and bar, and its rolls, roll rings and rolling guides ( Guide roll) is its main consumable part, and the roll materials used in the past are mostly made of tool steel and cast iron, accounting for about 8% to 25% of the production cost. The quality of the roll or roll ring is not only related to the cost of rolling steel and the production operation rate of the rolling mill, but also greatly affects the quality of the rolled wire rod. The working conditions of the roll ring are very bad. The temperature of the roll s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C29/02C22C29/04C22C1/05B21B27/02B23P11/02
CPCC22C29/02C22C29/04C22C1/051B21B27/024B23P11/025
Inventor 董定乾昝秀颀时凯华彭晖王晓灵廖军孙敬鸿
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
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