Refractory powder flame projection moldings
AssigneesNippon Steel Corporation, Kurosaki Yogyo Co., Ltd.
InventorsFukuoka Hiromi, Masataka Matsuo, Kazuo Hamai, Tokuaki Hatta, Mituo Sugawara
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Abstract
Refractory moldings or repairing deposits formed by flame projection, composed of a solidified phase formed from fused fine refractory particles and nonfused coarse refractory particles dispersed in the solidified phase. The moldings or deposits have high thermal shock resistance and erosion resistance. They are produced by flame-projecting fine refractory particles and coarse refractory particles together into a mold or onto a substrate, e.g. onto a portion of a furnace to be repaired.
Claims7
A refractory powder flame projection molding comprising nonfused refractory particles having a particle size of 0.2 to 10 mm dispersed and embedded in the solidified structure of a fused refractory material formed by the flame projection of a refractory material having a particle size less than 0.2 mm.
Dependencies are inferred from the claim text.