Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
CASTING METHOD FOR ACTIVE METAL
Document Type and Number:
WIPO Patent Application WO/2018/110370
Kind Code:
A1
Abstract:
In this casting method for an active metal, in an induction melting furnace (3) using a water-cooled copper crucible (2), a thin ingot (S) of an active metal is cast by tapping a melt M from a tapping hole (5) provided in a base section of the crucible (2) into a mold (4), wherein, when casting is performed under casting conditions in which the ingot has a diameter (D) of at least 10 mm, the ratio (H/D) of the height H of the ingot to the diameter D of the ingot is at least 1.5, and the weight of the melt M tapped in casting is no more than 200 kg, the temperature of the melt M during casting is set to be higher than the melting point of the active metal and casting is performed while the casting velocity V (mm/s), which is the velocity at which the casting advances in the mold 4, is controlled so that the relationship with the height H of the ingot satisfies V ≤ 0.1H by adjusting the opening diameter of the tapping hole 5.

More Like This:
Inventors:
MORIKAWA Yuzo
MATSUWAKA Daisuke
ISHIDA Hitoshi
IKEDA Shushi
Application Number:
JP2017/043660
Publication Date:
June 21, 2018
Filing Date:
December 05, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.) (2-4 Wakinohama-Kaigandori 2-chome, Chuo-ku Kobe-sh, Hyogo 85, 〒6518585, JP)
International Classes:
B22D7/00; B22D18/06; B22D21/06; B22D27/04; F27B14/06; F27B14/18
Foreign References:
JPH11310833A1999-11-09
JP2009113063A2009-05-28
JP2006281291A2006-10-19
JP2006122920A2006-05-18
JP2003311376A2003-11-05
JPH0957422A1997-03-04
JPH1157984A1999-03-02
JPH1187044A1999-03-30
JP2016241248A2016-12-13
JP2017206165A2017-11-24
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (Toranomon East Bldg. 10F, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
Download PDF: