Strip-shaped steel coated sand mold

Abstract

The invention provides a strip-shaped steel coated sand mold. The mold is composed of an upper mold body and a lower mold body, wherein the lower mold body and the upper mold body are respectivel provided with a lower mold cavity and an upper mold cavity, the lower mold cavity and the upper mold cavity are assembled to form a sand shell cavity, the lower mold cavity is internally provided with a plurality of protruding shapes with the same shape as that of strip-shaped steel, and the protruding shapes are distributed in array; the upper mold cavity is a groove matched with the lower mold cavity, and the upper surface of the lower mold body is provided with a plurality of air exhaust grooves mutually independently. The strip-shaped steel coated sand mold has the beneficial effects that by arranging different sand jet openings, the sand jet time completed by the sand shell cavity is the same, and thus the time spent on supplementing jet sand is reduced; and by arranging the multiple airexhaust grooves, waste discharging from the cavity is better facilitated, and the phenomenon of sand clamping or sand leaking of the sand shell is avoided.

Description

technical field [0001] The invention relates to the field of hot core box manufacturing, in particular to a bar-shaped iron-coated sand mold. Background technique [0002] In the existing machinery industry, the use of bar iron is very extensive. The bar iron is mainly made by cold rolling and then processed. When it is used in a small area, the size and surface of the bar iron need to be treated. The working hours and labor costs are relatively long, which increases the processing cost. [0003] Special-purpose bar iron has high requirements for size and surface treatment. Since the amount of special-purpose bar iron is not particularly large, casting is used to manufacture bar iron. Casting bar-shaped iron needs to adopt hot box mold to manufacture sand shell, can save a lot of man-hours like this, so the present invention adopts a kind of coated sand mold to be used for making the sand shell of bar-shaped iron. Contents of the invention [0004] In order to solve the ...

AI Technical Summary

Problems solved by technology

[0002] In the existing machinery industry, the use of bar iron is very extensive. The bar iron is mainly made by cold rolling and then processed. When it is used in a small area, the size and surface of the bar iron need to be treated. The man-hours and labor costs are relatively long, which increases the processing cost

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