Soft and hard dual-mold mold and manufacturing method thereof

Abstract

The invention discloses a soft and hard dual-mold mold and a manufacturing method thereof. The soft and hard dual-mold mold is applied to a mold of a device for feeding molten metal into terrain and a casting mold. The soft and hard dual-mold mold comprises an upper mold body, a lower mold body and two end covers, wherein a falling brick cavity is formed by the upper mold body, the lower mold body and the two end covers after mold closing; the upper mold body comprises an upper soft mold main body and an upper hard mold main body; the lower mold body comprises a lower soft mold main body and a lower hard mold main body; the upper soft mold main body is tightly attached to the inner wall of the upper hard mold main body, and the end face of the upper soft mold main body wraps the end face of the upper hard mold main body; the lower soft mold main body is tightly attached to the inner wall of the lower hard mold main body, and the end face of the lower soft mold main body wraps the end face of the lower hard mold main body; the upper soft mold main body, the lower soft mold main body and the end covers jointly form the closed falling brick cavity; and after the upper mold body and the lower mold body are closed, two end faces are formed and are fixedly connected with the corresponding two end covers. The soft and hard dual-mold mold is used for production of falling bricks, mold opening is easy, the finished product rate of products is high, and the produced falling bricks are good in surface degree of finish and have no any lapping defects.

Description

technical field [0001] The invention relates to a mold for equipment for feeding molten metal into land and casting molds, in particular to a soft and hard dual-mode mold and a manufacturing method thereof. Background technique [0002] The drop trough bricks used in the water-cooled ductile iron pipe gating system have irregular shapes, different product sizes, and rough surfaces, which make it impossible to realize mechanized production, and the production efficiency is not guaranteed. The mass production of integrally formed drop-trough bricks can only be realized by moulds. In order to develop molds with long service life, high product yield, low cost and high profit, those skilled in the art have spent a lot of trouble. [0003] According to the characteristics of the product, it was first produced by an integrated cast steel mold for falling groove bricks, but it was not possible to open the mold; then it developed an unopened resin mold for production. After many expe...

Images