SIO.sub.2 -CaO Based low cubically expansive flame-spraying material
AssigneesShinagawa Refractories Co., Ltd., Nippon Kokan Kabushiki Kaisha, Nippon Sanso Corporation
InventorsHiroyuki Sugimoto, Kazuo Fukaya, Yoji Koguchi
Life of this patent
Estimating the term…
Abstract
The present invention provides a flame-spraying material composed of a powder mixture having a particle size not more than 0.5 mm and essentially comprising 85 to 98% by weight of SiO.sub.2 and 2 to 15% by weight of CaO, and also comprising 0.05 to 1.0% by weight of Li.sub.2 O in addition to the above which show a good adhesion rate and high mechanical strength of the flame-spray deposited coating as well as a tendency towards higher anti-spalling due to the reduced melt viscosity and hot linear thermal expansion rate similar to that of silica brick.
Claims1
A flame-spraying material essentially comprising 85 to 98% by weight of SiO.sub.2, 2 to 15% by weight of CaO and 0.05 to 1.0% by weight of Li.sub.2 O.
Dependencies are inferred from the claim text.