Factors affecting the quality of low pressure casting
As we all know, 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 sequential condensation effect, realize condensation from the far end to the riser, prevent forging defects and improve production power and efficiency. Generally, it is more appropriate for the mold preheating temperature to reach 400 ~ 450 ℃. If the mold temperature is too low or too high, it will damage the reasonable mold temperature field, resulting in difficult molding or low qualification rate of castings. And the coating on the mold surface can resist thermal shock. The variety, particle size and thickness of the coating on the mold surface will directly affect the function of the casting.
In the production of low pressure casting, the quality of castings should be controlled and checked. First of all, we should formulate the rules and technical conditions for the control and inspection of each specific product from raw materials and auxiliary materials to each specific product. Control and check each process strictly according to the rules and technical conditions observed by the process.
It should be said that there are many factors affecting low-pressure casting. In addition to the treatment of these materials, they also include, for example, equipment, operator's construction methods, etc., but these factors will more or less affect the casting quality.
Editing: xyq