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Patent Searching and Data


Title:
SLEEVE FOR PREVENTING ENTRAPMENT OF INCLUSION FITTED TO SHAFT OF ROTARY DEGASSING DEVICE FOR MOLTEN STEEL
Document Type and Number:
Japanese Patent JPH09165629
Kind Code:
A
Abstract:

To provide a sleeve fitted to a shaft for preventing the entrapment of inclusion which is floated up on molten metal and again drawn into the molten metal to be dispersed.

In a rotary degassing device for executing the degassing by blowing inert gas into the molten metal, the sleeve 2 having spiral-shape groove 3 carved in the reverse direction to the rotating direction for preventing the entrapment of the inclusion foated up on the molten metal is fitted to the shaft 1 of the rotary degassing device for the molten metal. By this constitution, the inclusion in the molten metal after degassing can drastically be reduced.


Inventors:
KOIDE KUNIHIRO
WAKITA NAOTO
OSHIMA TOMOKO
Application Number:
JP34685095A
Publication Date:
June 24, 1997
Filing Date:
December 12, 1995
Export Citation:
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Assignee:
TOKYO YOGYO KK
International Classes:
C22B9/05; C21C7/072; (IPC1-7): C22B9/05; C21C7/072
Attorney, Agent or Firm:
Oya Suwao