Method for producing enamel cast iron pipe

Abstract

A method of producing an enameled cast iron pipe is to be simple and practical, and has high production efficiency. The method of the invention is that: (1) first the material is soaked by the sulphur acid solution or the hydrochloride acid solution, and then in the alkaline water; then the material is flushed by water and dried. (2) water is added in the metasilicate bottom glaze powder or surface glaze powder by the proportion to be stirred into paste. (3)the pastel bottom glaze is evenly sprayed on the inner wall and the outer wall of the cast iron pipe by a spray gun; and the surface glaze is evenly sprayed on the surface layer of the bottom glaze. (4) the material is pushed into an enamel firing furnace, sintered at 720 to 800DEG C for 5 to 6 minutes, and sent out of the furnace. (5) the finished product is naturally cooled.

Description

technical field [0001] The invention relates to a production method of an enamelled cast iron pipe. Background technique [0002] Many office buildings and residential buildings use cast iron pipes as sewer pipes, but cast iron pipes are prone to rust and fall off in pieces after rusting, which not only pollutes water quality, but also easily blocks pipes. The installation of cast iron pipes in the room also affects the appearance. There is a great market demand for adopting enamelled cast iron pipes instead of ordinary cast iron pipes as sewer pipes, but there is still a lack of an efficient and practical production method for enameled cast iron pipes. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and provide a simple, practical and high-efficiency production method for enamelled cast iron pipes. [0004] The invention adopts the cast iron pipe as the base material, and the inner ...

AI Technical Summary

Problems solved by technology

[0002] Many office buildings and residential buildings use cast iron pipes as sewer pipes, but cast iron pipes are prone to rust and fall off in pieces after rusting, which not only pollutes water quality, but also easily blocks pipes

The installation of cast iron pipes in the room also affects the appearance

There is a great market demand for using enamelled cast iron pipes instead of ordinary cast iron pipes as sewer pipes, but there is still a lack of an efficient and practical production method for enameled cast iron pipes