Low-temperature fast drying paint compound for refractory material production and preparation method of compound

Abstract

The invention discloses a low-temperature fast drying paint compound for refractory material production and a preparation method of the compound. Low-temperature fast drying paint comprises refractory bone powder, adhesives, auxiliaries, solvent carriers and penetrating agents, wherein the adhesives are mixture of phenolic resin and rosin, the auxiliaries are mixture of polyvinyl butyral and inorganic clay type suspending agents, and the solvent carriers are mixture of ethyl alcohol and methyl alcohol. The preparation method includes the steps: performing pretreatment by adding the solvent carriers and the auxiliaries into the refractory bone powder; adding the penetrating agents, the adhesives and the polyvinyl butyral and stirring the mixture for 5-10 minutes; adding the remaining solvent carriers and stirring the solvent carriers at high speed for 10-15 minutes. The low-temperature fast drying paint is capable of fast self-drying and good in suspension property and solid-phase sintering property and large in plastic film adhesion force. The preparation method of the low-temperature fast drying paint is scientific and standard in preparation process and wide in applicability, raw materials are processed step by step, and operation time of each step is clear.

Description

technical field [0001] The invention relates to the field of casting mold coatings, in particular to a low-temperature quick-drying coating formula for refractory production and a preparation method thereof. Background technique [0002] Low-temperature quick-drying coating is the key material for the sand molding technology of the V-process production line. The quality of the coating not only affects the gasification of the film and the migration of gas, but also is closely related to the surface quality of the casting. Poor coating performance will cause premature sand and air contact. The box collapses on contact. Since the sand mold of the V method production line does not use a binder, the sand is in point-to-point contact, and the air permeability is good. If there is no coating or the coating performance is not good, the vacuuming operation of the mold when the melt is pouring is still difficult. It will cause the molten liquid to penetrate into the molding sand, cau...

AI Technical Summary

Problems solved by technology

Since the sand mold of the V method production line does not use a binder, the sand is in point-to-point contact, and the air permeability is good. If there is no coating or the coating performance is not good, the vacuuming operation of the mold when the melt is pouring is still difficult. It will cause the molten liquid to penetrate into the molding sand, causing the casting to stick to the sand, and the pressure holding failure after pouring will eventually make the casting scrapped. Therefore, the coating plays an irreplaceable role in the sand molding and casting of the V method production line

[0003] Although traditional low-temperature quick-drying coatings also have good adhesion, they need to waste a long time in the drying process and cannot dry quickly, which greatly reduces production efficiency

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