Title:
Ti-Al BASED ALLOY CASTING METHOD
Document Type and Number:
Japanese Patent JP2021023967
Kind Code:
A
Abstract:
To reduce cavities inside a small-diameter ingot and improve good product yielding percentage in an active metal casting method.SOLUTION: In a Ti-Al based alloy casting method for tapping a molten metal to a casting mold 4 from a tap hole 5 provided in a bottom of a water-cooled copper crucible 2 in an induction melting furnace 3 using the crucible 2 to cast Ti-Al based alloy ingot, a degree of vacuum in the induction melting furnace 3 when casting dissolving or casting the Ti-Al based alloy is kept within the range of 80 to 700 torr, and an Al concentration of the cast ingot is kept within ± 1.0 mass% of a target value.SELECTED DRAWING: Figure 1
Inventors:
NISHIMURA TOMOHIRO
MATSUWAKA DAISUKE
ISHIDA HITOSHI
MATSUWAKA DAISUKE
ISHIDA HITOSHI
Application Number:
JP2019143776A
Publication Date:
February 22, 2021
Filing Date:
August 05, 2019
Export Citation:
Assignee:
KOBE STEEL LTD
International Classes:
B22D23/00; B22D21/06
Domestic Patent References:
| JPH08238553A | 1996-09-17 | |||
| JP2008142717A | 2008-06-26 | |||
| JPS63273562A | 1988-11-10 |
Foreign References:
| WO2018110370A1 | 2018-06-21 |
Attorney, Agent or Firm:
Mikio Yasuda