SU1687359A1 - Method of making shell gasting molds - Google Patents

Abstract

The invention relates to foundry production and is intended for the manufacture of single-layer two-layer sand molds, as well as for the manufacture of shell molds from cold-hardening mixtures. The purpose of the invention is to improve the quality of molds, expand technological capabilities and increase productivity. with elastic bottom 2 to its upper level. On the surface of the molding mixture set rods limiters 9 thickness of the layer of sand. Then, model 4, which fits tightly to the edge of the hopper 1, is inserted into the molding mixture, and the hardening of the molding sand layer between the model and the elastic bottom of the hopper is made by evacuating 2

Description

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Claims (1)

Claim A method of producing a shell mold, including filling the moldable mixture into a hopper with an elastic bottom to its upper level, introducing model equipment into the molding mixture, compacting the molding mixture, curing and removing the finished half-mold, characterized in that. in order to improve the quality of molds, expand technological capabilities and increase productivity, limit rods are installed on the surface of the molding sand before the introduction of model equipment into it. Editor M. Bandura Compiled by A, Fedorova Tehred M. Morgenthal Corrector O. Tsiple Order 3666 Circulation Subscription VNIIIPI State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh-35. Raushskaya nab., 4/5 Production and Publishing Combine Patent, Uzhgorod, 101 Gagarin St.