Actuator box body casting process

Abstract

The invention relates to an actuator box body casting process, which comprises the following steps: making a metal mold plate entering an actuator box body with metal, heating the metal mold plate to 180-280 C degree, coating molding sand on the metal mold plate, curing the molding sand, heating and curing the molding sand form a shell mold, wherein a pouring opening is formed in the central part of the shell mold, an overflow pipe and exhaust pins communicated with the cavity is arranged on the shell mold; forming three sets of actuator box body sand cores through chromite sand, combining the sand cores to form a sand core main body and horizontally arranging the sand core main body in a lower shell; making a sand box with sand, wherein upper and lower shells are embedded into the sand box, a sand layer is coated on the cavities among the inner side of the sand box and the outer surfaces of the upper and lower shells, and a pouring and rising system communicated with the shell mold is arranged in the sand layer; pouring towards the cavity through the pouring and rising system to form the actuator box body. The actuator box body casting process has the advantage that the exhaust is fast and the work efficiency is high.

Description

technical field [0001] The invention relates to the field of casting, in particular to an actuator box casting process. Background technique [0002] In the process control system, the actuator is composed of two parts: the actuator and the regulating mechanism. The adjustment mechanism directly changes the parameters of the production process through the actuator to make the production process meet the predetermined requirements. The actuator receives the control information from the controller and converts it into the output of the drive adjustment mechanism (such as angular displacement or linear displacement output). It also uses appropriate actuators, but the requirements are different from the adjustment mechanism. The actuators are installed directly on the production site, sometimes under harsh working conditions. Whether it can maintain normal work directly affects the safety and reliability of the automatic adjustment system. [0003] The actuator box is used t...

AI Technical Summary

Problems solved by technology

When casting the actuator box, the existing technology has several shortcomings: the temperature of the molten iron entering the cavity is low and the quality is poor, so it will affect the quality of the product; one mold can only produce one product , low production efficiency; slow exhaust speed, prone to shrinkage and shrinkage

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