摘要:
A coating is provided whih substantially lengthens the life of carbon and graphite electrodes used in electrical arc processes for the manufacture of ferrous metals. The coating forms a silica-phosphorus glass upon the electrodes.
摘要:
A coating is provided which substantially lengthens the life of carbon and graphite electrodes used in electrical arc processes for the manufacture of ferrous metals. The coating forms a silica-phosphorus glass upon the electrodes.
摘要:
A high temperature refractory caulking composition useful for sealing coke oven ascension pipes, Sinter furnaces and the like, comprising:______________________________________ Ingredients % by Weight ______________________________________ Alpha cristobalite 10- 30 Alpha-quartz 10- 50 Glassy polyphosphate having a deformation temperature of at least 500.degree. C. 10- 50 Bentonite clay 1- 10 Water An amount sufficient to form the above ingredients into a workable plastic mass. ______________________________________ Optionally, amounts of Fluorspar and phosphoric acid may be added to the above.
摘要:
Coating for carbon electrodes used as anodes in the electrolysis of alumina to produce aluminum are disclosed. The coatings are aqueous and contain zinc chloride and powdered alumina.
摘要:
Coating for carbon electrodes used as anodes in the electrolysis of aluminum are disclosed. The coatings are aqueous and contain zinc chloride and powdered alumina.
摘要:
A tundish veneer composition comprising about 45-80 percent by weight of MgO, about 1-7 percent by weight of a refractory clay filler, about 1-15 percent by weight of a refractory glass wool fiber, about 3-10 percent of aqueous colloidal silica binder, and optionally, up to about 15 percent by weight of graphite, a foaming agent, or a dispersing agent.
摘要:
An improved ingot mold for producing steel ingots is disclosed. The primary feature of this improved mold is an interior sidewall coating which is composed of an aqueous slurry of finely divided iron oxide and a lignosulfonate.