Surface rapid treatment method of pump valve shell casting

Abstract

The invention relates to a surface rapid treatment method of a pump valve shell casting. According to the present invention, a bottom plate, vibration devices and a shakeout device are comprised, a conical groove is formed in the middle of the bottom plate, and a discharging port communicated with the conical groove is formed in the middle at the lower end of the bottom plate; the vibration devices are symmetrically arranged at the lower end of the bottom plate and are connected with the lower end of the bottom plate, and the shakeout device is installed in the middle of the upper end of the bottom plate. The method can solve the problems that when the existing equipment is used for conducting sand shakeout treatment on the castings, a roller vibration mode is generally adopted for shakeout, the molding sand treatment effect is poor, the casting parts are prone to damage, and the existing equipment generally cannot accurately position and clamp the casting parts, so that the cleaning effect of the casting parts is poor, the molding sand particles adhering to the surfaces of the casting parts cannot be accurately cleaned, and more molding sand particles are left on the surfaces of the cleaned casting parts.

Description

technical field [0001] The invention relates to the field of casting processing, in particular to a method for quickly treating the surface of a pump valve housing casting. Background technique [0002] The casting process generally includes molding, pouring, cooling and sand shakeout. The role of molding sand in casting production is extremely important. The casting waste caused by poor quality of molding sand accounts for about 30-50% of the total casting waste. Usually, the requirements for molding sand Yes: It has high strength and thermal stability to withstand various external forces and high temperatures; good fluidity, that is, the ability of molding sand to move between sand particles under the action of external force or its own gravity. After pouring is completed, a large number of molding sand particles are usually adhered to the outer surface of the casting. [0003] At present, the existing castings usually have the following defects when performing rapid surf...

AI Technical Summary

Problems solved by technology

[0005] The present invention can solve the problem that when the existing equipment shakes out the castings, it usually adopts the way of drum vibration to shake out the sand, the sand treatment effect is poor, and it is easy to cause damage to the castings, and the existing equipment is usually unable to shake out the castings. Accurate positioning and clamping lead to poor cleaning effect of castings. It is impossible to accurately clean the molded sand particles adhering to the surface of castings.