Flow guide buffering device for gypsum model vacuum grouting sizing agent

Abstract

The invention provides a flow guide buffering device for gypsum model vacuum grouting sizing agent. The flow guide buffering device comprises a liquid flow groove (1), a flow guide pipe (2) and two oppositely-arranged supports (3). The flow guide pipe (2) is limited above the liquid flow groove (1) through a clamp buckle (4), and the upper end of the flow guide pipe (2) communicates with a sizing agent injection port. A detachable buffering groove (5) is formed in the bottom of the liquid flow groove (1) and located below an outflow port of the flow guide pipe (2). A long groove (31) is formed in each support (3), supporting legs are slidably arranged at the two ends of each long groove (31), and the liquid flow groove (1) is slidably connected with the two supports (3) through the long grooves (31). According to the flow guide buffering device for the gypsum model vacuum grouting sizing agent, the liquid flow groove is arranged to be an open type, and the sizing agent can gently flow in a large-area mode; and under the vacuum effect, residual gas in the sizing agent can be eliminated at largest limitation, and the casting surface quality is ensured.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a gypsum-type vacuum grouting slurry drainage buffer device. Background technique [0002] At present, in the production process of gypsum precision castings, the traditional grouting method is that the slurry is directly filled in the mold box through a fixed injection port, which is greatly affected by the shape of the wax pattern and the size of the mold box. Due to the impact of the slurry, the injection position is not selected accurately, which may damage the wax pattern. Therefore, the position of the mold box needs to be constantly adjusted during grouting, and the production efficiency is low. At the same time, the vacuum degree during gypsum vacuum grouting is not absolute vacuum. If the residual gas cannot be discharged in time during stirring, defects such as air lumps will easily form in the later stage of castings (especially castings with complex curved...

AI Technical Summary

Problems solved by technology

[0002] At present, in the production process of gypsum precision castings, the traditional grouting method is that the slurry is directly filled in the mold box through a fixed injection port, which is greatly affected by the shape of the wax pattern and the size of the mold box

Due to the impact of the grout, the injection position is not selected accurately, which may damage the wax pattern, so the position of the mold box needs to be constantly adjusted during grouting, and the production efficiency is low.

At the same time, the vacuum degree of gypsum vacuum grouting is not absolute vacuum. If the residual gas cannot be discharged in time during stirring, the casting (especially the casting with complex curved surface) will easily form defects such as air lumps in the later stage, which will seriously affect the surface quality of the casting.

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