Factors affecting low pressure casting quality
It is well known that the processing system of low-pressure casting will affect the whole operation process, so what are the factors affecting this low-pressure casting?
Reasonable low-pressure die design can dredge the feeding channel in the forging process, produce good and rapid order condensation effect, realize condensation from the far end to the riser direction in turn, and prevent the occurrence of forging defects, improve production power and efficiency. Generally, it is more appropriate for the preheating temperature of the mold to reach 400 ~ 450℃. If the temperature of the mold is too low or too high, the reasonable temperature field of the mold will be damaged, which makes the casting difficult to form or the qualified rate low. And the coating on the outer surface of the mold is resistant to thermal shock. The spray-on coating varieties, the size and thickness of the outer surface of the mold will directly affect the casting function.
During the production of low-pressure casting, the quality of castings should be restrained and checked. First of all, it is necessary to formulate the rules and technical conditions for the process compliance from raw materials, Kuang auxiliary materials to each specific product. Every process shall be strictly checked and checked according to the rules and technical conditions followed by the process.
It should be said that there are many factors that affect low-pressure casting. In addition to the treatment of these materials, it also includes, for example, equipment, construction methods of operators, etc., but these factors will also affect the casting quality more or less.
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