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Method of preparing high temperature gland self-lubricating composite material from vanadium-titanium magnetite ores

A technology of vanadium-titanium magnetite and composite materials, which is applied in the field of composite materials, can solve the problems of unfavorable popularization and application, increase of production cost, etc., and achieve the effects of simple and easy preparation process, excellent self-lubricating performance and high toughness

Inactive Publication Date: 2019-01-15
SICHUAN ENG TECHN COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the preparation of high-temperature sweating self-lubricating metal-ceramic composite materials with high oxidation resistance, high temperature resistance and high wear resistance is mainly realized by mixing, pressing, sintering, impregnating and other processes with fine chemical powder as raw material. Whether it is from the selection of raw materials and the selection of preparation technology, the preparation cost will be increased, which is not conducive to popularization and application.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] The present invention uses vanadium-titanium magnetite to prepare high-temperature sweating and self-lubricating metal-ceramic sliding composite materials, including the following two-stage process measures.

[0053] The first stage of technological measures is to use vanadium-titanium magnetite to prepare a cermet wear-resistant sintered body with sweat gland microporous structure, which specifically includes the following technological steps:

[0054] Step 1. select the titanium magnetite concentrate powder with higher iron content in the vanadium-titanium magnetite with conventional beneficiation measures;

[0055] Weigh vanadium-titanium magnetite concentrate powder and graphite powder at a ratio of 100:20.563, wherein the particle size range of vanadium-titanium magnetite concentrate powder is 200-300 mesh, and the particle size range of graphite powder is 200-300 mesh;

[0056] Put the weighed vanadium-titanium magnetite concentrate powder and graphite powder into...

Embodiment 2

[0080] The present invention uses vanadium-titanium magnetite to prepare high-temperature sweating and self-lubricating metal-ceramic sliding composite materials, including the following two-stage process measures.

[0081] The first stage of technological measures is to use vanadium-titanium magnetite to prepare a cermet wear-resistant sintered body with sweat gland microporous structure, which specifically includes the following technological steps:

[0082] Step 1. select the titanium magnetite concentrate powder with higher iron content in the vanadium-titanium magnetite with conventional beneficiation measures;

[0083] Weigh vanadium-titanium magnetite concentrate powder and graphite powder at a ratio of 100:20.563, wherein the particle size range of vanadium-titanium magnetite concentrate powder is 200-300 mesh, and the particle size range of graphite powder is 200-300 mesh;

[0084] Put the weighed vanadium-titanium magnetite concentrate powder and graphite powder into...

Embodiment 3

[0108] The present invention uses vanadium-titanium magnetite to prepare high-temperature sweating and self-lubricating metal-ceramic sliding composite materials, including the following two-stage process measures.

[0109] The first stage of technological measures is to use vanadium-titanium magnetite to prepare a cermet wear-resistant sintered body with sweat gland microporous structure, which specifically includes the following technological steps:

[0110] Step 1. select the titanium magnetite concentrate powder with higher iron content in the vanadium-titanium magnetite with conventional beneficiation measures;

[0111] Weigh vanadium-titanium magnetite concentrate powder and graphite powder at a ratio of 100:20.563, wherein the particle size range of vanadium-titanium magnetite concentrate powder is 200-300 mesh, and the particle size range of graphite powder is 200-300 mesh;

[0112] Put the vanadium-titanium magnetite concentrate powder and graphite powder into the bal...

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Abstract

The invention discloses a method of preparing a high temperature gland self-lubricating composite material from vanadium-titanium magnetite ores. The method comprises following steps: step one, preparing a metal-ceramic ware resistant sintered body with a gland type microporous structure from vanadium-titanium magnetite ores; and step two, preparing the high temperature gland self-lubricating metal-ceramic composite material from the sintered body prepared in the step one. The prepared high temperature gland self-lubricating metal-ceramic composite material comprises a compact and uniform solid lubricating material, has high toughness, high strength, and an excellent self-lubricating performance, can be used under extreme conditions such as extremely high / low temperatures, vacuum, alternating load, and the like, can be used in high-end industries, and has a wide application prospect. The preparation technology is simple and easy to perform, the application range of vanadium-titanium magnetite ores is enlarged, and good economic benefits are generated.

Description

technical field [0001] The invention relates to a composite material, in particular to a method for preparing a high-temperature sweating self-lubricating cermet composite material with vanadium-titanium magnetite. Background technique [0002] Vanadium-titanium magnetite is a rich geological resource in my country. The vanadium-titanium magnetite powder produced by it contains not only iron, titanium and vanadium, but also high chromium, cobalt, nickel, platinum group and scandium, etc. It has a variety of ingredients and has high utilization value. [0003] At present, the more common utilization technology of vanadium-titanium magnetite is to smelt pig iron in blast furnace. However, when vanadium-titanium magnetite is used to prepare pig iron, the associated oxides in the vanadium-titanium magnetite will be removed as impurities during the pig iron smelting process, so that the associated oxides will be treated as waste slag. This not only causes a lot of waste of other...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/10C22C1/08C22B5/10
CPCB22F3/1035B22F3/1125C22B5/10C22C1/1015C22C1/1036
Inventor 张光明章友谊蔺虹宾
Owner SICHUAN ENG TECHN COLLEGE