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Metal-resin composite material and preparing process

A technology of resin composite materials and composite materials, which is applied in the direction of metal processing equipment, manufacturing tools, abrasives, etc., can solve the problems of low decomposition temperature of resin binder, burn workpiece, poor heat resistance, etc., and achieve lower sintering temperature, reduce damage, Overcoming sticky effects

Inactive Publication Date: 2014-07-16
HENAN UNIVERSITY OF TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The material of the present invention can be used as a bonding agent for superhard material grinding tools. It overcomes the shortcomings of pure metal bonding agents such as high viscosity, easy to block, burn workpieces, low decomposition temperature of resin bonding agents, and poor heat resistance. It also has metal bonding agents The advantages of long grinding life, good heat resistance, high strength, sharp grinding and good self-sharpening of resin bond

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] a. Take 85% of the metal bond by weight, put the metal powder into the vacuum ball mill for ball milling for 24 hours by weight, and mix well; the metal bond material is composed (weight ratio): copper 73%, tin 5% %, zinc 5%, lead 2.5%, nickel 14.5%;

[0019] B, get resin bond powder 15% by weight and mix with the metal powder gained in step a;

[0020] c. At a pressure of 1.5KN / cm 2 The mixed powder obtained in step b is cold-pressed under the condition of , and then insulated and solidified in a drying oven. 2 1. Under the condition of 500°C, it is heated in a hot-press sintering machine to carry out sintering and pressure molding.

[0021] Product features: good sharpness, suitable for grinding brittle and hard materials.

Embodiment 2

[0023] a. Take 90% of the metal bond by weight, put the metal powder into the vacuum ball mill for 24 hours, and mix well; the metal bond material is composed of (weight ratio): 73% copper, 5% tin %, zinc 5%, lead 2.5%, aluminum 14.5%;

[0024] B, get resin bond powder 10% by weight and mix evenly with the metal powder obtained in step a;

[0025] c. At a pressure of 1.5KN / cm 2 The mixed powder obtained in step b is cold-pressed under the condition of , and then insulated and solidified in a drying oven. 2 , Under the condition of 480°C, it is heated in a hot-press sintering machine to carry out sintering and pressure molding.

[0026] Product features: good sharpness, wide application range.

Embodiment 3

[0028] a. Take 90% of the metal bond by weight, put the metal powder by weight into a vacuum ball mill for 24 hours, mix well, and mix; the metal bond material is composed of (weight ratio): copper 70 %, tin 10%, zinc 10%, lead 2.5%, iron 7.5%;

[0029] B, get resin bond powder 10% by weight and mix evenly with the metal powder obtained in step a;

[0030] c. At a pressure of 1.5KN / cm 2 The mixed powder obtained in step b is cold-pressed under the condition of , and then insulated and solidified in a drying oven. 2 , Under the condition of 480°C, it is heated in a hot-press sintering machine to carry out sintering and pressure molding.

[0031] Product features: good sharpness, wide application range.

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PUM

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Abstract

A metal-resin composite material is composed of metal bond and resin bond according to mass ratio, wherein the metal bond occupies 85-95%, and resin materials occupy 5-15%. According to mass ratio, the metal bond contains 70-80% of copper, 3-10% of zinc, 3-10% of tin, 1-5% of lead, 0-20% of aluminum, 0-20% of nickel and 0-20% of iron. The resin bond is drawn from any one of polyimide, phenolic resin or epoxy resin. The raw materials are subjected to ball milling, mixing, cold press molding and vacuum hot pressing according to the proportion. The metal-resin composite material and a preparing process can solve the problem that pure metal bond is large in viscosity, cannot exit blades easily, is apt to be blocked and burns workpieces and the problem that the resin bond is low in thermal decomposition temperature, poor in heat resistance and the like.

Description

technical field [0001] The invention relates to superhard abrasive grinding technology, in particular to a metal-resin composite material and its preparation process. Background technique [0002] With the development of industrial technology, high-speed, high-efficiency, and high-precision grinding has become the mainstream of today's grinding technology development. As an advanced processing technology, superabrasive grinding has continuously expanded its application fields. The processing of difficult-to-grind metal materials has developed to the processing of ordinary ferrous metals such as bearings, automobiles, and machine tools, as well as non-metallic materials such as ceramics and stones, which has a tendency to replace ordinary abrasive tools. [0003] At present, metal-bonded superabrasives and resin-bonded superabrasives are the most widely used materials for cutting, grinding and polishing. Advantages of metal bond: strong bonding force and good toughness. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B24D3/02B24D18/00B22F3/16
Inventor 邹文俊杨家联屈继来彭进宋城
Owner HENAN UNIVERSITY OF TECHNOLOGY
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