Title:
MELTING AND HOLDING FURNACE
Document Type and Number:
WIPO Patent Application WO/2020/080027
Kind Code:
A1
Abstract:
Provided is a melting and holding furnace which, by means of a relatively simple configuration, is able to suppress the formation of oxides, thereby increasing production efficiency and reducing the running cost. This melting and holding furnace is equipped with a melting furnace body 2 and a material loading mechanism 3 for supplying molten metal M to the melting furnace body. The melting furnace body is equipped with a melting chamber 4, a molten metal receiving chamber 5, a dip-out chamber 6, and a molten metal heating mechanism 7, and the melting chamber is equipped with a melting chamber lid 8. The material loading mechanism is equipped with a molten metal surface level sensor S for detecting when the surface height position of the molten metal in the dip-out chamber has fallen to a lower-limit level that has been set in the dip-out chamber so as to be higher than a lower-surface height position of the melting chamber lid. When the molten metal surface level sensor detects that the molten metal surface height position in the dip-out chamber has fallen to the lower-limit level, molten metal and/or metal ingots are supplied to the molten metal receiving chamber so as to constantly maintain the molten metal surface height position in the dip-out chamber at a position above the lower-surface height position of the melting chamber lid.
Inventors:
MOCHIZUKI KIYATA (JP)
Application Number:
PCT/JP2019/036658
Publication Date:
April 23, 2020
Filing Date:
September 19, 2019
Export Citation:
Assignee:
TOUNETSU CO LTD (JP)
International Classes:
B22D45/00; B22D18/04; F27B3/04; F27B3/20; F27D21/00; B22D18/06
Foreign References:
| JP2018058101A | 2018-04-12 | |||
| JP2002357387A | 2002-12-13 | |||
| JPS6412197U | 1989-01-23 | |||
| JPS6412196U | 1989-01-23 | |||
| JP2005076972A | 2005-03-24 | |||
| JPS6023777A | 1985-02-06 | |||
| JPS6050795U | 1985-04-10 | |||
| JP2011075187A | 2011-04-14 | |||
| JPH0544362U | 1993-06-15 | |||
| JPH11320083A | 1999-11-24 | |||
| JP5989266B2 | 2016-09-07 | |||
| JP2018197454A | 2018-12-13 |
Other References:
See also references of EP 3868490A4
Attorney, Agent or Firm:
TAKAOKA Ryoichi (JP)
Download PDF: