Gating system for casting chemical standard blanks

Abstract

A casting system for casting a chemical standard sample blank comprises a base case (1) with an openmouthed top, a plurality of molding dies (2) positioned in the base case (1), a flow collector (3) positioned at the openmouthed end of the base case (1) through a positioning structure, and a flow retardation device (4) placed on the flow collector (3) and with one end spaced horizontally and supported on the support body of the base case (1), the bottom of the flow collector (3) is provided with liquid outlets (3.1) for the respective injection of melt in the flow collector (3) into the molding dies (2), the liquid outlets (3.1) are arranged corresponding to casting holes (2.1) of the molding die in a one-to-one manner, and the bottom of the slow retardation device (4) is provided with a liquid outlet structure enabling the melt in the slow retardation device (4) to be filtered to form a slow flow entering the flow collector (3). The casting system has the advantages of effective shortening of the casting time, reduction of the secondary oxidation probability, improvement of the purity of the melt, and obtaining of high quality products.

Description

Technical field [0001] The invention relates to the field of casting technology, in particular to a pouring system for casting chemical standard sample blanks. Background technique [0002] At present, the traditional pouring system used for casting chemical standard sample blanks is relatively simple, mainly including a base, a plurality of forming molds positioned in rows on the base, and guardrails are installed around the base. The forming mold is a cylindrical steel pipe structure. The lower open end of the steel pipe structure is plugged with a base with a positioning plunger. The positioning plunger is used for positioning in the positioning hole of the base. The upper open end of the steel pipe is plugged with a thermal insulation riser sleeve. , The heat preservation riser sleeve is provided with a pouring hole for the melt to be poured into the inner cavity of the steel pipe. [0003] The pouring system of the above-mentioned structure is relatively simple. During pourin...

AI Technical Summary

Problems solved by technology

[0003] The pouring system of the above structure is relatively simple, and the melt in the electric furnace cannot be directly poured into the inner cavity of each metal forming mold during pouring. The melt in the electric furnace must first be poured into the ladle, and then poured into each The inner cavity of the metal forming mold prolongs the time from the melting to pouring of the melt, increases the probability of secondary oxidation of the melt, reduces the chemical stability and accuracy of the standard blank, and the melt is directly injected into the There is no filter in the inner cavity of the metal forming mold, and the purity of the melt is low, which affects the quality of the chemical standard sample blank to a certain extent

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