| 摘要 |
Disclosed is a method of applying a refractory coating to a conduit. The refractory coating is provided by mixing a refractory mortar with water, impregnating a water absorbent web of fibrous material with the liquid mixture, securing a leading end portion of the impregnated web to a surface of the conduit, wrapping at least one layer of the impregnated web on the conduit surface as a coating, and drying the coating to remove the water and cause the refractory mixture to chemically bond. The conduit may be a pipe protected by the coating for use in injecting a refining agent beneath the surface of a molten metal composition comprising a scrap metal such as copper, aluminum or iron. |
