Preparation process of machining high-strength refractory materials

Abstract

The invention discloses a preparation process of machining high-strength refractory materials. The preparation process specifically comprises a protection box which is provided with a square box body, a heat setting device installed at the bottom of an inner cavity of the square box body, an eddy current coil installed at the top of the outer surface of the heat setting device, current converters arranged at the two sides of the eddy current coil, an electric lifting column arranged on the top of the square box body, and a pressing device arranged on the top of the electric lifting column. The invention relates to the technical field of refractory materials. Through the arrangement of the eddy current coil, high-frequency induction heating is conducted on the heat setting device, the temperature rising speed of preparation raw materials in the heat setting device is effectively increased, time is saved, and efficiency is improved; and meanwhile, the equipment is annularly blocked through the arrangement of the eddy current coil, heat of the heat setting device is blocked from flowing back, the dissipation speed of the heat is reduced, the waste heat is utilized, and the energy loss is reduced.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a preparation process of machined high-strength refractory materials. Background technique [0002] Modern metallurgy and other related industries require high-temperature structural refractory materials to have excellent comprehensive properties, among which mechanical properties, thermal shock resistance, oxidation resistance and machinability are the most important. As a high-temperature structural refractory material, hexagonal boron nitride (h-BN) has a very high melting point, good high-temperature chemical stability, thermal shock resistance and machinability, so it is widely used in the metallurgical industry. However, the strength of BN refractories is very low, and the compressive strength of high-purity h-BN products is only 50MPa, which limits the application of BN refractories in high-temperature and high-oxygen environments to a certain extent. In addi...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a process for the preparation of machined high-strength refractory materials, which solves the problem that internal heat tends to scatter easily during preparation in the existing refractory material preparation process, reduces the time for raw materials to heat up, and slows down the processing time. At the same time, the heat will cause thermal fatigue loss to the peripheral equipment components, reducing the processing life of the equipment and the safety of processing.

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