Invention Grant
- Patent Title: Casting method and cast article
- Patent Title (中): 铸造方法和铸造物品
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Application No.: US14165719Application Date: 2014-01-28
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Publication No.: US09555471B2Publication Date: 2017-01-31
- 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: B22D25/06
- IPC: B22D25/06 ; B22D27/04 ; C30B11/00 ; 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withdrawal distance through the withdrawal region in the casting furnace, the withdrawal distance providing a partially withdrawn portion, then reinserting at least a portion of the partially withdrawn portion into the casting furnace through the withdrawal region, and then completely withdrawing the mold from the casting furnace. The reinserting partially re-melts a solidified portion within the partially withdrawn portion to fill pores formed therein with the molten material. The cast article includes a microstructure and a porosity 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
- US20150209859A1 CASTING METHOD AND CAST ARTICLE Public/Granted day:2015-07-30
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