Brush coating tool for cast-in steel pipe

Abstract

The invention provides a brush coating tool for a cast-in steel pipe, and belongs to the technical field of casting. The brush coating is used for overcoming quality defects of sand burning, iron coated sand and the like on the inner wall of the cast-in steel pipe in a pouring process. The brush coating tool comprises a liquid material storage chamber, a liquid material circulation pipeline and aliquid material brush, wherein the liquid material storage chamber is provided with a liquid material inlet and a liquid material outlet, and the liquid material outlet is connected with one end of the liquid material circulation pipeline; and the other end of the liquid material circulation pipeline is connected with the liquid material brush. With the adoption of the brush coating tool, uniformbrush coating for the inner wall of the cast-in steel pipe can be realized, so that the problems of sand burning and iron coated sand of the cast-in steel pipe in the pouring process are solved, the problem of product obsolescence caused by quality defects of the cast-in steel pipe is reduced, meanwhile, the cleaning work of the cast-in steel pipe is avoided, and working efficiency and productionefficiency are increased.

Description

technical field [0001] The invention relates to the field of casting technology, in particular to the field of cast-in steel pipes. Background technique [0002] Most of the steel pipes used in the main oil passages, oil return passages, and steel casting box oil passages of the existing Zhongda cast iron frame are cast in the way of pre-embedded cast steel pipes. After pouring sand falls, there are quality defects such as sticky sand and iron-clad sand on the inner wall of the steel pipe. When cleaning the quality defects with a cleaning tool such as air shovel or oxygen melting rod, the inner wall of the steel pipe is easily damaged, causing the entire product to be scrapped, resulting in high production costs. Contents of the invention [0003] In view of the above problems that the quality defects of the inner wall of the cast-in-cast steel pipe are difficult to clean up, and the inner wall is easily damaged and the product is scrapped, it is necessary to propose a bru...

AI Technical Summary

Problems solved by technology

After pouring and falling sand, there are quality defects such as sticky sand and iron-clad sand on the inner wall of the steel pipe. When cleaning the quality defects with a cleaning tool such as air shovel or oxygen melting rod, it is easy to damage the inner wall of the steel pipe, causing the entire product to be scrapped, resulting in high production costs.

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