Invention Grant
- Patent Title: Casting method and cast article
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Application No.: US15383384Application Date: 2016-12-19
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Publication No.: US10265764B2Publication Date: 2019-04-23
- Inventor: Jian Zheng , Arthur S. Peck
- Applicant: GENERAL ELECTRIC COMPANY
- Applicant Address: US NY Schenectady
- Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee: GENERAL ELECTRIC COMPANY
- Current Assignee Address: US NY Schenectady
- Agency: McNees Wallace & Nurick LLC
- Main IPC: F01D5/14
- IPC: F01D5/14 ; B22D21/00 ; B22D25/02 ; B22D25/06 ; B22D27/04 ; C30B13/00 ; C22C19/05 ; C30B29/52

Abstract:
A casting method and cast article are provided. The casting method includes providing a casting furnace, the casting furnace including a withdrawal region in a lower end, positioning a mold within the casting furnace, positioning a molten material in the mold, partially withdrawing the mold a withdrawal distance through the withdrawal region in the casting furnace, the withdrawal distance providing a partially withdrawn portion, then reinserting at least a portion of the partially withdrawn portion into the casting furnace through the withdrawal region, and then completely withdrawing the mold from the casting furnace. The reinserting at least partially re-melts a solidified portion within the partially withdrawn portion to reduce or eliminate freckle grains. The cast article includes a microstructure and occurrence of freckle grains corresponding to being formed by a process comprising partially withdrawing, reinserting, and completely withdrawing of a mold from a casting furnace to form the cast article.
Public/Granted literature
- US20170095857A1 CASTING METHOD AND CAST ARTICLE Public/Granted day:2017-04-06
Information query