Title:
GRAPHITE NOZZLE FOR BOTTOM TAPPING AND TI-AL ALLOY CASTING METHOD
Document Type and Number:
WIPO Patent Application WO/2021/192875
Kind Code:
A1
Abstract:
Provided is a Ti-Al alloy casting method that, by providing a graphite nozzle for bottom tapping capable of greatly increasing the overall quality of a cast product, including surface quality and the like, also taking composition defects into account, and controlling Al concentration as well as using the nozzle, is capable of greatly increasing overall quality, also taking composition defects into account. In the graphite nozzle for bottom tapping (5) provided to the bottom portion of a crucible (2) used when tapping molten metal (M) into a casting mold (4) and casting an ingot (S), a taper T of an angle θ of 2.5 to 8° is applied to a flow path (6) that is the inside of the graphite nozzle for bottom tapping (5) and through which the molten metal (M) passes.
Inventors:
NISHIMURA TOMOHIRO
MATSUWAKA DAISUKE
MATSUWAKA DAISUKE
Application Number:
PCT/JP2021/008311
Publication Date:
September 30, 2021
Filing Date:
March 03, 2021
Export Citation:
Assignee:
KOBE STEEL LTD (JP)
International Classes:
B22D21/06; B22D23/00; B22D41/50; B22D41/54
Foreign References:
| JP2007240102A | 2007-09-20 | |||
| JP2005205491A | 2005-08-04 | |||
| CN104593613A | 2015-05-06 | |||
| JP2009504414A | 2009-02-05 | |||
| JP2009113061A | 2009-05-28 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
Download PDF:
Previous Patent: COATING APPARATUS, PRINTING APPARATUS, AND COATING METHOD
Next Patent: DEVICE-UNDER-TEST RETAINING APPARATUS, AND EMC TEST SYSTEM
Next Patent: DEVICE-UNDER-TEST RETAINING APPARATUS, AND EMC TEST SYSTEM