Paper pouring gate pipe component for casting cast steel

Abstract

The invention discloses a paper pouring gate pipe component for casting cast steel. The paper pouring gate pipe component is prepared from the following raw material in weight percentage: 1 to 70% of inorganic sintered powder material, 1 to 40% of organic fiber, 1 to 20% of inorganic fiber, 1 to 25% of thermocuring material, 1 to 10% of binding agent, 1 to 5% of waterproof and dampproof agent, 1 to 5% of enhancer and filter aid, 1 to 5% of fluxing agent and 0 to 5% of flame retardant, wherein the inorganic sintered powder material is combination of any several kinds of mullite, high-aluminum clay, attapulgite, montmorillonite, bentonite, high-aluminum powder, quartz, volcanic rock and graphite. The paper pouring gate pipe component has no effects of recarburization, decarbonization, carburization and the like on iron, so that chemical ingredients and material performance of cast steel raw materials are prevented from being changed. The paper pouring gate pipe component has the advantages of light weight, easiness to operate, small waste after cast pouring, labor saving, time saving, energy conservation, environmental friendliness, no environmental pollution, environmental protection and the like; in addition, the waste is easy to treat.

Description

technical field [0001] The invention belongs to the technical field of casting auxiliary materials in the steel casting industry, and in particular relates to a paper sprue pipe part for steel casting. 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 as follows: the raw materials are made into green body raw materials according to certain specifications, and the tubular green body is made into a tubular green body through the processes of mixing, aging, and mud refining, and then dried and calcined at a high temperature in a kiln 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 molt...

AI Technical Summary

Problems solved by technology

However, because the paper sprue tube parts used in cast iron casting contain high carbon and can be cracked during use to produce substances that can increase, decarburize, and carburize iron.