Title: Sleeve arrangement for blasting gaseous or solid materials into molten metal container
Application Number: 86102836 Application Date: 1986.04.25
Publication Number: 1005506 Publication Date: 1986.12.03
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B22D41/00;C21C7/072;C22C33/12
Applicant(s) Name: Didier-Werke AG (DE) Lessingstr. 16-18, 6200 Wiesb Address:
Inventor(s) Name: Manfred Winkelmann;Pierre Gerber;Udo Muschner
Attorney & Agent: ZHENG SONGYU LI YI
Abstract:
    A nozzle arrangement for injecting gases or solid matter into a ladle containing molten metal, e.g. in the region of a slide gate, the nozzle insert of which has the form of a truncated cone provided with a through-flow channel, and which nozzle insert is to be placed in position in a nozzle brick of the ladle walls having a conical opening. The conical outer surface of the nozzle insert and the conical inner surface of the opening of the nozzle brick have a corresponding gradient for a self-locking fit, preferably of 5 degree, and the conical inner surface of the opening of the nozzle brick is lined with a sheet-iron lining of minor material thickness having the same gradient. This nozzle arrangement allows a more rapid fitting and replacement of the nozzle insert while ensuring improved accuracy in the fit of the nozzle insert.
Time: 3