Title:
PREHEATING METHOD OF TUNDISH FOR CONTINUOUS CASTING
Document Type and Number:
Japanese Patent JP3260606
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To preheat the tundish so that erosion due to overheating is not caused to a refractory in the tundish prior to casting of molten steel and nozzle clogging is not caused to a nozzle hole at the beginning of casting.
SOLUTION: In a heat pattern in which a refractory 3 lined to the inner face of shell 2 is heated prior to casting, after the refractory is heated with the max load that is the max gas flow rate of fuel gas to be supplied to a preheating burner which is arranged to a cover 5 facing downward, heat holding is maintained with a fuel gas quantity of ≥50% of the max load, further, the refractory is heated with a fuel gas quantity of ≥70% of the max load at least 30min prior to casting start and then casting is started.
Inventors:
Tomoaki Tadama
Nozomi Tamura
Shigeru Ogura
Nozomi Tamura
Shigeru Ogura
Application Number:
JP28116395A
Publication Date:
February 25, 2002
Filing Date:
October 30, 1995
Export Citation:
Assignee:
Kawasaki Steel Co., Ltd.
International Classes:
B22D41/015; B22D11/10; (IPC1-7): B22D11/10; B22D41/015
Domestic Patent References:
| JP422567A | ||||
| JP4238656A | ||||
| JP7204807A | ||||
| JP4143047A | ||||
| JP3297554A | ||||
| JP61165256A | ||||
| JP6156759A | ||||
| JP5081923A | ||||
| JP4828327A | ||||
| JP5857367U |
Attorney, Agent or Firm:
Eiichi Kobayashi
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