Method for casting steel anode template through composite sand mould

Abstract

The invention discloses a method for casting a steel anode template through a composite sand mould. The method includes the following steps that (1) chromite sand, modified sodium silicate and organic ester are used for preparing chromite moulding sand, chromite moulding sand of 10-15 mm is laid on the big plane of an anode template model, chromite moulding sand is arranged on the portions of all lugs and a centre hole, and quartz sand replaces chromite sand to prepare quartz sodium silicate moulding sand to be injected into other portions and is compressed; (2) self hardening, mould drawing, shaping and put down of a centre hole sand core are conducted, then a cavity is formed, and portions without chromite moulding sand are coated with zircon powder alcohol-based coatings twice; (3) molten steel is cast into the cavity, and sand is discharged after heat preservation is conducted; and (4) a riser is cut off, full annealing treatment, cleaning and grinding are conducted, and then the steel anode template can be obtained. By the adoption of the composite sand mould, the lugs and the centre hole of the anode template are not prone to sintering through the chilling action of the chromite sand, so that no iron coated sand is generated, and the sand adhering defect is avoided as a whole. The dimension is precise, and the big plane is compact in texture.

Description

technical field [0001] The invention belongs to the technical field of casting, and in particular relates to a method for using a composite sand mold to cast a steel anode plate mold. Background technique [0002] The anode plate mold is mainly used for casting the copper anode plate of electrolytic copper. It is a frequently consumed spare part for the production of copper anode plates. Its performance directly affects the quality and manufacturing cost of copper anode plates. Most of the domestic copper industry uses copper anode formwork or cast iron anode formwork. Among them, copper anode formwork consumes a lot when used, while cast iron anode formwork is prone to cracks and is not easy to repair, and the consumption cost of both is high. . At present, a small number of copper industries use a low-alloy steel anode formwork that is resistant to erosion, not easy to crack, and can be repaired to replace copper anode formwork and cast iron anode formwork. [0003] Sinc...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a method for casting steel anode plate molds using composite sand molds. The steel anode plate molds cast by this method have no iron-coated sand, no oxygen cutting treatment, accurate dimensions, dense large-plane structure, and high strength. High, erosion resistance, not easy to corrode, crack, no sticky sand defects overall, smooth surface

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