Preparation process of diamond tool formed by microwave heating

Abstract

The invention discloses a preparation process of a diamond tool formed by microwave heating. The preparation process comprises a forming powder preparation step, a warm-pressing forming step, a solvent removal step and a degreasing sintering forming step, wherein the warm-pressing forming step comprises the following specific steps: S1) putting the diamond matrix feed prepared in the step of preparing the forming powder into a warm-pressing forming mold, and then putting a forming pressing plate on the surface of the diamond matrix feed; S2) putting the warm-pressing forming mold pressed with the forming pressing plate into a microwave heating device, conducting microwave heating till the temperature of the diamond matrix feed reaches the warm-pressing forming temperature of 100-150 DEG C, keeping microwave heating for 20-50 s, and obtaining a diamond matrix blank, wherein the diamond matrix feed contains diamond particles, alloy powder and an adhesive; the warm-pressing forming mold is made of polytetrafluoroethylene, and microwave radiation heating is adopted, so that the temperature rising speed is high, the heating time is short, the production efficiency is good, and the energy consumption is low.

Description

technical field [0001] The invention relates to the technical field of diamond tools, in particular to a preparation process of a diamond tool shaped by microwave heating. Background technique [0002] The heating methods of dry powder warm pressing of diamond tools in the prior art include: resistance warm pressing heating, hot oil heating and hot gas warm pressing heating, all of which heat the metal mold, and then heat the diamond powder through heat conduction. Transfer heat and form after reaching the set temperature. These methods have slow heating speed, poor thermal uniformity, and large equipment volume. Metal molds and equipment consume a lot of heat energy, and have the defects of low efficiency and high energy consumption. Contents of the invention [0003] The purpose of the present invention is to overcome the defects of the above-mentioned prior art, and propose a diamond tool molding preparation process using microwave radiation heating, which has low energ...

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Problems solved by technology

[0002] The heating methods of dry powder warm pressing of diamond tools in the prior art include: resistance warm pressing heating, hot oil heating and hot gas warm pressing heating, all of which heat the metal mold, and then heat the diamond powder through heat conduction. Transfer heat and form after reaching the set temperature. These methods have slow heating speed, poor thermal uniformity, and large equipment volume. Metal molds and equipment consume a lot of heat energy, and have the defects of low efficiency and large energy consumption.

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