Method to obtain vibrations in the walls of the crystallizer of

Details Method to obtain vibrations in the walls of the crystallizer of Method to obtain vibrations in the walls of the crystallizer of

1997-09-24

1999-09-07

Pyon, Harold

Metal founding

Process

Shaping liquid metal against a forming surface

164416, B22D 1104

Patent

active

059471867

ABSTRACT:
Method and device to obtain vibrations in the walls of the crystalliser (11) in an ingot mould (10) by use of actuators, the ingot mould (10) including a channel use (13) for the circulation of cooling liquid, the ingot mould (10) being associated with a conventional system of oscillation, there being induced on the crystalliser (11) vibrations of small amplitude and high frequency and acceleration obtained by exciting an actuator (16) comprising an element in magnetostrictive alloy (18) arranged in cooperation with at least one face of the crystalliser (11) itself, the element in magnetostrictive alloy (18) being excited by an electromagnetic field.

REFERENCES:
patent: 4662427 (1987-05-01), Larrecg et al.
patent: 4867226 (1989-09-01), Uehara et al.
patent: 5355935 (1994-10-01), Nogues
patent: 5739724 (1998-04-01), Alexandre et al.
Database WPI, Section CH, week 8713, Derwent Publications Ltd., London, GB; Class M22, AN 87--091676 XP002028738 & SU 363 298 (Surin E V) Aug. 23, 1986.
Database WPI, Section CH, Week 7502, Derwent Publications Ltd., London, GB; Class M22, AN 75-03193W XP02028739 & SU 417 229 A (Ferr Metallurg Bardin IN) Jul. 23, 1974.

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