Preparation method of novel graphite refractory brick

Abstract

The invention discloses a preparation method of a novel graphite refractory brick. The novel graphite refractory brick comprises, by mass, 70 to 80 portions of kaolin, 8 to 14 portions of potassium silicate, 1 to 5 portions of quartz sand, 10 to 15 portions of graphite and 10 to 18 portions of phenolic resin. The novel graphite refractory brick has good use performances and a long service life.

Description

technical field [0001] The invention relates to a refractory brick, in particular to a method for manufacturing a graphite refractory brick. Background technique [0002] With the continuous development of iron and steel smelting technology, the requirements for the quality and high temperature performance of refractory products are getting higher and higher. Calcium-containing refractory materials are easy to make steel slag slag and improve corrosion resistance, but the calcium component is easy to bring out free calcium oxide. Calcium oxide hydration can easily cause cracking and pulverization of the product, which affects the service life of refractory bricks. Contents of the invention [0003] The technical solution adopted by the present invention to solve the technical problems is: a method for making a novel graphite refractory brick, which is characterized in that it is made of the following raw materials: 70-80 parts of kaolin, 8-14 parts of potassium silicate ,...

AI Technical Summary

Problems solved by technology

[0002] With the continuous development of iron and steel smelting technology, the requirements for the quality and high temperature performance of refractory products are getting higher and higher. Calcium-containing refractory materials are easy to make steel slag slag and improve corrosion resistance, but the calcium component is easy to bring out free calcium oxide. Calcium oxide hydration is easy to cause cracking and pulverization of the product, which affects the service life of refractory bricks