Title:
CASTABLE REFRACTORY FOR HOT REPAIRING AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3725910
Kind Code:
B2
Abstract:
PURPOSE: To produce a hot repairing material having fluidity at normal temp. and at hot time, fast in baking time and good in durability by incorporating a fire resistant aggregate, phenol resin, a solvent and a wet dispersant as a main component.
CONSTITUTION: 0.05-1.0 pts.wt. cationic, anionic, nonionic and amphoteric wet dispersant (D) are previously impregnated to 100 pts.wt. refractory aggregate (A) consisting of an aggregate being a basic material such as magnesia and an acidic and neutral material such as silicon and having ≥1.0mm grain size, the aggregate having 0.1-1.0mm grain size and the aggregate having ≤0.1mm grain size, and 5-15 pts.wt. phenol resin (B) in which novolak type phenol resin having a wt. average mol.wt. of ≥900 and ≤10wt.% resol type phenol resin are used jointly and 5-15 pts.wt. solvent (C) being a high b.p. polyhydric alcohol are mixed to the refractory aggregate and kneaded in a mixer, and an amorphous refractory for slurried hot repairing is obtained by confirming a free flow value at room temp. to be 110-180mm.
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Inventors:
Taehiro Taizo
Naotoshi Yasuda
Takashi Tanaka
Daijiro Nishimura
Kenichi Samejima
Tatsuo Okada
Naotoshi Yasuda
Takashi Tanaka
Daijiro Nishimura
Kenichi Samejima
Tatsuo Okada
Application Number:
JP28781894A
Publication Date:
December 14, 2005
Filing Date:
November 22, 1994
Export Citation:
Assignee:
Kurosaki Harima Co., Ltd.
Dainippon Ink and Chemicals Co., Ltd.
Okada Shokai Co., Ltd.
Dainippon Ink and Chemicals Co., Ltd.
Okada Shokai Co., Ltd.
International Classes:
C09K23/22; C09K23/34; C04B35/66; C09K23/52; F27D1/16; (IPC1-7): C04B35/66; F27D1/16
Domestic Patent References:
| JP3271168A | ||||
| JP3126679A | ||||
| JP51140909A | ||||
| JP55162482A |
Attorney, Agent or Firm:
Masayuki Kishida
Mizuno Katsufumi
Mizuno Katsufumi