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Metal-matrix composite and preparation method thereof

A composite material and metal-based technology, applied in the field of materials, can solve problems such as poor wear resistance, poor bonding strength, and large surface friction, and achieve the effects of reducing production costs, high production efficiency, and short production cycles

Inactive Publication Date: 2016-12-21
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lubricating oil is usually used for lubrication of parts, but oil-free lubrication is required in special industries such as water conservancy, food, and pharmaceuticals. However, self-lubricating materials currently on the market have shortcomings such as large surface friction, poor wear resistance, and poor bonding strength. Therefore, materials with vibration reduction, low friction coefficient, wear resistance, self-lubrication, and high bonding strength are particularly desired

Method used

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  • Metal-matrix composite and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The composition and preparation steps of the metal matrix composite material in this embodiment are as follows:

[0029] a) The material of the metal base 3 is 45# steel. First, the metal base 3 is ultrasonically cleaned for 15 minutes. After the ultrasonic cleaning is completed, the metal base 3 is dried in a vacuum dryer, and the temperature of the dryer is set to 80 ℃, the time is 0.5 hours, sandblasting is carried out after drying, the sandblasting particle size is 20 mesh quartz sand, the sandblasting pressure is 0.8MPa, the sandblasting time is 5s, and the metal substrate 3 is cleaned with deionized water after sandblasting 5 times, after washing, put the metal base 3 into the mixture of concentrated sulfuric acid and water and soak for 5 minutes, wherein the specific gravity of concentrated sulfuric acid and water is 1:1, then wash the metal base 3 with deionized water 5 times, after washing, the metal The substrate 3 is dried in a vacuum dryer, the temperature o...

Embodiment 2

[0035] The composition and preparation steps of the metal matrix composite material in this embodiment are as follows:

[0036]a) The material of the metal base 3 is 45# steel. First, the metal base 3 is ultrasonically cleaned for 17 min. ℃, the time is 0.5 hours, sandblasting is carried out after drying, the sandblasting particle size is 50 mesh quartz sand, the sandblasting pressure is 0.8MPa, the sandblasting time is 7s, and the metal substrate 3 is cleaned with deionized water after sandblasting 5 times, after washing, put the metal base 3 into the mixed solution of concentrated sulfuric acid and water and soak for 8 minutes, wherein the specific gravity of concentrated sulfuric acid and water is 1:1, then wash the metal base 3 with deionized water 5 times, after washing, the metal The substrate 3 is dried in a vacuum dryer, the temperature of the dryer is set at 80° C., and the time is 1 hour;

[0037] b) The mass percentages of the components of the middle bonding layer...

Embodiment 3

[0042] The composition and preparation steps of the metal matrix composite material in this embodiment are as follows:

[0043] a) The material of the metal base 3 is 45# steel. First, the metal base 3 is ultrasonically cleaned for 20 minutes. After the ultrasonic cleaning is completed, the metal base 3 is dried in a vacuum dryer, and the temperature of the dryer is set to 80 ℃, the time is 0.5 hours, sandblasting is carried out after drying, the sandblasting particle size is 80 mesh quartz sand, the sandblasting pressure is 0.8MPa, the sandblasting time is 10s, and the metal substrate 3 is cleaned with deionized water after sandblasting 5 times, after washing, put the metal substrate 3 into the mixture of concentrated sulfuric acid and water and soak for 10 minutes, wherein the specific gravity of concentrated sulfuric acid and water is 1:1, then wash the metal substrate 3 with deionized water for 5 times, and wash the metal substrate 3 after washing. The substrate 3 is dried...

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Abstract

The invention discloses a metal-matrix composite and a preparation method thereof. The metal-matrix composite is sequentially composed of a plastic working layer, a middle combination layer and a metal base body from top to bottom. The plastic working layer comprises, by mass, 30-50% of polybenzoate, 20-40% of polyamide, 20-40% of polytetrafluoroethylene, 8-15% of carbon fiber, 3-7 % of copper powder and 5% of molybdenum disulfide. The middle combination layer comprises, by mass, 40-60% of epoxy resin, 30-50% of polyurethane, 10-20% of alumina powder and 10-20% of silane coupling agent. The metal base body is made of one of 45# steel, aluminum alloy and copper alloy. The metal-matrix composite is high in production efficiency, automatic control can be achieved, efficiency is improved, cost is reduced, and the metal-matrix composite can be suitable for self-lubricating of mechanical device parts under high working temperature, lots of dust, heavy loads and other special working conditions.

Description

technical field [0001] The invention relates to the field of materials, in particular to a metal matrix composite material and a preparation method thereof. Background technique [0002] At present, with the rapid development of the automobile industry, pharmaceutical machinery, food machinery, and national defense industries, the requirements for various shaft sleeves, slideways, slide plates, and friction components are getting higher and higher. Lubricating oil is usually used for lubrication of parts, but oil-free lubrication is required in special industries such as water conservancy, food, and pharmaceuticals. However, self-lubricating materials currently on the market have shortcomings such as large surface friction, poor wear resistance, and poor bonding strength. Therefore, materials with vibration reduction, low friction coefficient, wear resistance, self-lubrication, and high bonding strength are particularly desired. Contents of the invention [0003] The firs...

Claims

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Application Information

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IPC IPC(8): B32B15/092B32B27/08B32B27/18B32B33/00B32B37/06B32B37/10C08L63/00C08L75/04C08L67/00C08L27/18C08L77/00C08K3/22C08K7/06C08K3/08
CPCC08L27/18C08L63/00C08L67/00B32B15/092B32B27/08B32B27/18B32B33/00B32B37/06B32B37/10C08L2205/03B32B2262/106B32B2270/00B32B2264/102B32B2264/105B32B2307/554B32B2307/558B32B2309/02B32B2309/12C08L75/04C08K2003/2227C08L77/00C08K7/06C08K2003/085C08K2003/3009
Inventor 戴亚春崔沛骆志高吴勃
Owner JIANGSU UNIV
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