Title:
IMMERSION NOZZLE REPLACEMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/1997/028917
Kind Code:
A1
Abstract:
When a conventional replacement apparatus is used, 60-90 seconds are required to carry out a replacement operation, so that a molten metal surface in a continuous casting mold is solidified during replacement to cause a joint portion of the molten metal to turn into scrap. The invention apparatus is provided with a slide valve unit (6) adapted to control a discharge rate of a molten metal flowing out from a molten metal container, a retainer cylinder (21) for an immersion nozzle (9) which is supported in a vertical posture on a lower portion of the slide valve unit, and a guide arm (33) supported in a horizontally posture on a piston rod in this cylinder and having a pair of rail members (33a), retaining in a fitted state a nozzle case (10) at an upper end of the immersion nozzle (9), and provided in parallel with each other, an induction guide (32) which extends to the outside of a zone of a mold (12) being provided at one side of the slide valve unit (6), a jig retainer member (52), which detachably holds an immersion nozzle retaining jig (57), being fixed to a rail (51), which extends in the longitudinal direction of the induction guide, in such a manner that the jig retainer member can be moved freely.
Inventors:
YOSHINO RYOICHI (JP)
YAMAMOTO KENJI (JP)
TANIGUCHI TADAO (JP)
YAMAMOTO KENJI (JP)
TANIGUCHI TADAO (JP)
Application Number:
PCT/JP1996/000240
Publication Date:
August 14, 1997
Filing Date:
February 06, 1996
Export Citation:
Assignee:
SHINAGAWA REFRACTORIES CO (JP)
YOSHINO RYOICHI (JP)
YAMAMOTO KENJI (JP)
TANIGUCHI TADAO (JP)
YOSHINO RYOICHI (JP)
YAMAMOTO KENJI (JP)
TANIGUCHI TADAO (JP)
International Classes:
B22D41/56; (IPC1-7): B22D41/56; B22D11/10
Foreign References:
| JPH0310425B2 | 1991-02-13 | |||
| JPS5441539B2 | 1979-12-08 | |||
| JPH06602A | 1994-01-11 | |||
| JPS4865813U | 1973-08-21 |
Other References:
See also references of EP 0820825A4
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