Mold shell leakproofness detection device and mold shell leakproofness detection method

Abstract

The invention provides a mold shell leakproofness detection device and a mold shell leakproofness detection method, the mold shell leakproofness detection device comprises a box body and a box cover,one end of the box body is open, the box cover is installed at the open end of the box body through a fastener in a covering mode to form a closed space, and an input pipe and an output pipe are further installed on the box cover. A flow meter A is installed on the input pipe, a flow meter B is installed on the output pipe, the tail end of the output pipe is communicated with the closed space, andthe tail end of the input pipe is communicated with a preset cavity in the shell placed in the closed space. The mold shell leakproofness detection method comprises a use method for detecting the mold shell by adopting the mold shell leakproofness detection device. By the adoption of the technical scheme, the shells are detected and distinguished through a simple technological method, unqualifiedshells can be effectively prevented from flowing into the next procedure, waste of raw materials is reduced, and the percent of pass of finished castings is increased.

Description

technical field [0001] The invention relates to the technical field of casting technology, in particular to a mold shell airtightness detection device and a mold shell airtightness detection method. Background technique [0002] In the production process of investment castings, it is necessary to prepare the mold shell first. The surface quality of the mold shell directly affects the final casting quality. When pouring the molten metal material into the mold shell, the metal material will cause great damage to the mold shell. Impact, if there are cracks on the surface of the mold shell, it will cause defects such as run-off and under-casting of the final molded casting, which will affect the molding quality of the casting. Therefore, it is urgent to develop a device or method dedicated to testing the airtightness of the mold shell , Strengthen the inspection of the surface quality of the shell, so as to find the surface defects of the shell in time, so as to avoid the waste ...

AI Technical Summary

Problems solved by technology

[0002] In the production process of investment castings, it is necessary to prepare the shell first. The surface quality of the shell directly affects the quality of the final casting. When pouring the molten metal material into the shell, the metal material will cause great damage to the shell. Impact, if there are cracks on the surface of the mold shell, it will cause defects such as run-off and under-casting of the final molded casting, which will affect the molding quality of the casting. Therefore, it is urgent to develop a device or method dedicated to testing the airtightness of the mold shell , Strengthen the inspection of the surface quality of the shell, so as to find the surface defects of the shell in time, so as to avoid the waste of raw materials and improve the qualified rate of castings

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