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 shortcom

Method used

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  • Metal-matrix composite and preparation method thereof

Examples

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Example Embodiment

[0027] Example 1:

[0028] The composition and preparation steps of the metal matrix composite material of 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, the metal base 3 is placed in a vacuum dryer for drying, and the temperature of the dryer is set to 80 ℃, time is 0.5 hours, sandblasting is done after drying, sandblasting particle size is 20 mesh quartz sand, sandblasting pressure is 0.8MPa, sandblasting time is 5s, metal substrate 3 is cleaned with deionized water after sandblasting 5 times, after washing, put the metal substrate 3 into the mixed solution of concentrated sulfuric acid and water for 5 minutes, where the specific gravity of concentrated sulfuric acid and water is 1:1, then wash the metal substrate 3 with deionized water for 5 times. The base 3 is put into a vacuum dryer for drying, the temperature of the dryer is set to 80°...

Example Embodiment

[0034] Example 2:

[0035] The composition and preparation steps of the metal matrix composite material of 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 minutes. After the ultrasonic cleaning is completed, the metal base 3 is placed in a vacuum dryer for drying, and the temperature of the dryer is set to 80 ℃, time is 0.5 hours, after drying, sandblasting is carried out, sandblasting particle size is 50 mesh quartz sand, sandblasting pressure is 0.8MPa, sandblasting time is 7s, metal substrate 3 is cleaned with deionized water after sandblasting After washing for 5 times, put the metal substrate 3 into the mixed solution of concentrated sulfuric acid and water for 8 minutes, where the specific gravity of concentrated sulfuric acid and water is 1:1, and then wash the metal substrate 3 with deionized water for 5 times. The base 3 is put into a vacuum dryer for drying, the temperatur...

Example Embodiment

[0041] Example 3:

[0042] The composition and preparation steps of the metal matrix composite material of 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, the metal base 3 is placed in a vacuum dryer for drying, and the temperature of the dryer is set to 80 ℃, time is 0.5 hours, sandblasting is done after drying, sandblasting particle size is 80 mesh quartz sand, sandblasting pressure is 0.8MPa, sandblasting time is 10s, metal substrate 3 is cleaned with deionized water after sandblasting After washing for 5 times, put the metal substrate 3 in a mixture of concentrated sulfuric acid and water for 10 minutes, where the specific gravity of concentrated sulfuric acid and water is 1:1, and then clean the metal substrate 3 with deionized water for 5 times. The base 3 is put into a vacuum dryer for drying, the temperature of the dryer is set to 80°C...

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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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