Spraying material for microwave smelting demolding and spraying method of spraying material

Abstract

The invention relates to the technical field of metallurgy, and particularly discloses a spraying material for microwave smelting demolding and a spraying method of the spraying material. The sprayingmaterial for the microwave smelting demolding is prepared from powder and a solvent, wherein the solvent is any one of water, a sodium silicate solution, papermaking waste liquid and phenolic resin;the powder is prepared from the following components in parts by weight: 30 to 60 parts of quartz sand, 40 to 70 parts of emery powder, 20 to 40 parts of pulverized coal, 10 to 30 parts of carbon powder, 15 to 30 parts of silicon carbide, 10 to 25 parts of graphite powder, 30 to 50 parts of mineral powder and 10 to 20 parts of lime. The spraying method is characterized by spraying a backing material layer on the surface of a saggar, wherein a powdery backing material can be uniformly and firmly attached to the surface of the saggar, and the using amount of the backing material is one third toone half of the original using amount. The backing material layer obtained by using the preparation method can be repeatedly used for 5 to 10 times.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a spraying material for microwave smelting and film removal and a spraying method thereof. Background technique [0002] Applying microwave heating technology to metallurgical industry is a revolution in metallurgical technology. Microwave metallurgy has the advantages of energy saving, high efficiency, and environmental protection. But for now, the application of microwave heating technology in the metallurgical industry is not mature enough, still in the laboratory or semi-industrial stage, and there are still many problems. When microwave smelting alloys, it is necessary to use saggers made of corresponding refractory materials as reactors and holding containers for materials and high-temperature melts, but there is a problem of defilming in both. Spread a layer of primer evenly on the bottom of the sagger, and then place the spherical material on it. After the smelting i...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a spraying material and spraying method for microwave smelting and film removal, so as to solve the problem that the bottom material of the sagger in the prior art can only be used once, and the thickness of the bottom material is uneven due to the difference of each person The problem

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