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Talk about the test and performance test of high alumina refractory bricks

点击次数:   更新时间:19/04/18 13:22:04     来源:www.fanucu.com关闭分    享:
Previously, Xiaobian told everyone that the relationship between molten steel and high-alumina refractory bricks cannot be together. Because of the contact between the two, there will be pollution. It is not convincing to say this alone. This small series will explain to you in the form of experiments.
The test process is carried out at the production site: the molten steel is preheated to 1527 ° C for casting, the casting time is 8 min, the diameter of the soup channel is 60 mm, and the high alumina refractory brick of 10 mm × 10 mm × 10 mm is cut from the surface of the soup channel after the casting is completed. .
The experimental results show that the surface of the brick is larger and the structure is loose. The surface of the mullite brick is fine, the structure is dense and the surface has needle-like crystals, which is a network cross structure. This dense structure can hinder the further erosion of molten steel against high alumina refractory bricks. Therefore, in the process of flowing molten steel through the high alumina refractory brick, the molten steel is more likely to react with the refractory material of the high alumina refractory brick.
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