Title:
METHOD AND APPARATUS FOR ADJUSTING METAL BILLET SURFACE
Document Type and Number:
Japanese Patent JPS55110743
Kind Code:
A
Abstract:
A molten bath of slag is formed in a vessel, and the bottom end of the workpiece is immersed in the bath, but only to a depth corresp. with the depth(t) of the surface layer which is to be removed from the bottom end of the workpiece. Electroslag remelting is then used to remove the surface layer to depth(t). The workpiece is pref. lowered gradually into the molten slag until the required depth has been removed. One pref. plant consists of a furnace or mould connected to one pole of an electric power supply, the second pole of the latter being connected to the workpiece so the surface of the latter melts. The molten metal thus obtd. may be drawn out of the bottom of the furnace in a manner similar to conventional electroslag melting. Very large components can be provided with smooth, clean surfaces free from cracks or fissures without the loss of a large amt. of metal; and the unsound hot tops of very large ingots may be completely removed.
Inventors:
BORISU EBUGENIEBICHI PATON
JIYURII BADEIMOBICHI RATASHI
NIKORAI AREKISEEBICHI TSURIN
IGOORU SUTEPANOBICHI PURIYANIS
AREKISEI EFUIMOBICHI BORONIN
PURADEIMIRU NIKORAEBICHI MACHI
REFU RAFUAIR
JIYURII BADEIMOBICHI RATASHI
NIKORAI AREKISEEBICHI TSURIN
IGOORU SUTEPANOBICHI PURIYANIS
AREKISEI EFUIMOBICHI BORONIN
PURADEIMIRU NIKORAEBICHI MACHI
REFU RAFUAIR
Application Number:
JP16842979A
Publication Date:
August 26, 1980
Filing Date:
December 26, 1979
Export Citation:
Assignee:
INST ELEKTROSWARKI PATONA
International Classes:
C22B9/18; C22B9/187; B22D23/10; C23G1/28; (IPC1-7): B22D27/02; C22B9/18