Paper pouring gate pipe for casting and manufacturing method of paper pouring gate pipe

Abstract

The invention discloses a paper pouring gate pipe for casting. The paper pouring gate pipe for casting is prepared from organic fibers, inorganic fibers, sintered refractory, a binder, a waterproof and dampproof agent, an enhancer, a filter aid and a fluxing agent. The invention further discloses a manufacturing method of the paper pouring gate pipe for casting. According to the paper pouring gate pipe for casting and the manufacturing method of the paper pouring gate pipe for casting, compared with a refractory ceramic pouring gate pipe component adopted all the time, the paper pouring gate pipe for casting manufactured based on the paper pulp molding technology has the beneficial effects that the weight is low, operation is easy, little waste is generated after a casting is cast, treatment is easy, labor and time are saved, energy saving and environment friendliness are achieved, the environment is not polluted, and environment friendliness is achieved.

Description

technical field [0001] The invention relates to the field of foundry industry, in particular to a paper sprue pipe for foundry and a manufacturing method thereof. Background technique [0002] In today's existing technology, sprue pipe components widely used in the field of casting are fired by using refractory materials such as pottery and porcelain. The manufacturing process is to make the raw materials into green body raw materials according to certain specifications, and then make tubular green bodies through the processes of mixing, aging, and mud refining, and then dry and calcinate the kiln at high temperature to make refractory ceramic sprue pipe parts. When in use, it is buried in the molding sand and becomes a channel for molten steel to enter the cavity. Its basic function is to ensure that sand washing and sand sticking will not occur during the flow of molten steel; after the molten steel is cooled, it will not stick to iron or sand. Its essence is to use th...

AI Technical Summary

Problems solved by technology

This technology has defects such as complicated manufacturing process, high energy consumption, heavy environmental pollution, heavy weight, easy damage, large cutting dust, and hard solid waste, which is difficult to remove.

[0003] According to the search, it was found that the Chinese invention patent application 200910117239.6 discloses a paper sprue pipe for casting and its preparation process. The paper sprue uses waste paper pulp as fibers, and the refractoriness is low after carbonization in an oxygen-deficient state, resulting in The overall strength of the product is not enough; the reinforcing agent and moisture-proof agent use instant sodium silicate, water glass or silicon-based silicone waterproofing agent, which will cause molding sand pollution