Investment casting silica sol coating distribution system and distribution method thereof

Abstract

The invention provides an investment casting silica sol coating distribution system and a distribution method thereof. The system comprises a silica sol pool, a batching barrel, a powder box, a feeding mechanism, a diaphragm pump, a coating valve, a silica sol valve, a cleaning valve, a station valve and a station coating storage barrel, wherein a discharge port of the powder box is communicated with a feed port of the batching barrel through the feeding mechanism; the coating valve is mounted at a discharge hole in the bottom of the batching barrel; an outlet of the coating valve is communicated with a feeding hole of the batching barrel through the diaphragm pump and the cleaning valve in sequence; a pipeline between the coating valve and the diaphragm pump is communicated with a discharge hole of the silica sol pool through the silica sol valve; a pipeline between the diaphragm pump and the cleaning valve is communicated with the station coating storage barrel through the station valve. The distribution method includes firstly performing pipeline washing with silica sol, then conveying prepared coating, and repeating the steps to avoid pipeline blockage. The system and the method have a good application prospect.

Description

technical field [0001] The invention relates to an investment casting auxiliary system, in particular to an investment casting silica sol coating distribution system and a distribution method thereof. Background technique [0002] Silica sol coating in the investment casting industry is prepared by mixing silica sol glue, quartz powder or mullite powder and other additives in a certain proportion. It is a high viscosity, easy to precipitate, and poor fluidity coating. , the paint will solidify and cannot be used. [0003] At present, the investment casting industry uses a production line for mass production of shells, which requires a large amount of silica sol coating and needs to be replenished regularly. If it is configured on site, the amount, quality, and consistency of the coating cannot be guaranteed, and each station Separate configuration requires more labor, cumbersome process, and low efficiency. If centralized distribution, on the one hand, it is more troublesom...

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Problems solved by technology

[0002] Silica sol coating in the investment casting industry is prepared by mixing silica sol glue, quartz powder or mullite powder and other additives in a certain proportion. It is a high viscosity, easy to precipitate, and poor fluidity coating. , the paint will solidify and cannot be used

[0003] At present, the investment casting industry uses a production line for mass production of shells, which requires a large amount of silica sol coating and needs to be replenished regularly. If it is configured on site, the amount, quality, and consistency of the coating cannot be guaranteed, and each station Separate configuration requires more labor, cumbersome process, and low efficiency. If centralized distribution, on the one hand, it is more troublesome to transport and feed large quantities of materials. It is necessary to consider setting the batching point near the warehouse. On the other hand, it is necessary to consider the batching point to be transported to the workstation If the distance is too long, there may be a problem of pipeline blockage

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