Valve for controlling delivery of metal melt and use method thereof

Abstract

The invention relates to a valve for controlling the delivery of metal melt and a use method thereof, belonging to the field of non-ferrous metal processing. The valve body is externally provided with three interfaces, and an inflow interface at the left end is a melt inlet; the interface opposite to the inflow interface is a valve sleeve installation port, the valve rod stretches into the valve sleeve installation port, and a valve sleeve is fixedly installed in the position of the valve sleeve installation port; an outflow interface at the lower end perpendicular to the direction of the inflow interface is a melt outflow port; a heating device is arranged outside the valve body; a valve core is arranged in the valve body and connected with a valve rod through screw threads; the valve core is in a cylinder structure; the two ends of the cylinder are in a cone shape; a thermocouple installation hole is formed in the valve rod and the valve core; and the heating device is installed outside the valve body. The valve provided by the invention can realize the starting and stopping of the delivery of high-temperature metal melt, the on-off response speed of the valve is high, the control is simple and convenient, the structure in the valve can prevent the occurrence of the problem that the melt leaks from the valve because the valve is not completely closed, and the valve is connected with a melt delivery pipeline or melt processing equipment, thereby realizing the effective control for the delivery of the metal melt.

Description

technical field [0001] The invention belongs to the field of non-ferrous metal processing, in particular to a valve for controlling the conveyance of molten metal and a method for using the same. Background technique [0002] At present, in the field of metal casting, more and more processes use pipelines to quantitatively transport metal melts, such as die casting and low pressure casting. The types of metals conveyed also cover a variety of different alloys, such as aluminum alloys, magnesium alloys, tin alloys, etc. Usually, the metal melt is driven into the conveying pipeline by mechanical force or electromagnetic force in the melting crucible, and then flows out of the pipeline directly and enters the forming machine or mold. There is no control over the melt conveying. If the forming machine or mold fails, only The method of stopping the delivery can be adopted. If a valve mechanism can be added in the pipeline, the opening and cutting off of the delivery of the melt ...

AI Technical Summary

Problems solved by technology

Compared with ordinary liquid valves, the valves that control the conveying of metal melts mainly have the characteristics of high temperature, high viscosity, and large surface tension of the conveying medium. During use, it is necessary to avoid tight seals, melt blockage, and thermal deformation that cause valve failures, etc. Therefore, it is hoped that the developed valve suitable for metal melt transportation can not only meet the requirements of controlling metal flow, but also have the characteristics of easy control and maintenance.

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