| Title of Invention | METHOD OF PRODUCING A HIGH STRENGTH METAL PART WITHIN A DIE CAVITY |
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| Abstract | A metal alloy is heated to a molten state, and a grain refiner may be added. The refined molten alloy is poured into a large diameter shot sleeve (86) of a vertical die cast press (10) and on top of a shot piston (88). The shot sleeve is transferred to an injection station while the molten alloy cools to a semi−solid slurry with approximately fifty percent solids and a globular, generally non−dendritic microstructure. A center portion (A) of the slurry is injected upwardly by the piston through a gate opening (62) into a die cavity (50) while an outer, more solid portion (S2) is entrapped in an annular recess (63). After the slurry solidifies, the shot piston retracts, and the shot sleeve is transferred to a position where the residual biscuit (B) is removed. A second shot sleeve (86) filled with the molten alloy is transferred to the metal transfer station (82), and the process is repeated. |
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1904-CHENP-2004 AMANDED PAGES OF SPECIFICATION 17-11-2009.pdf
1904-CHENP-2004 CORRESPONDENCE OTHERS 17-11-2009.pdf
1904-CHENP-2004 FORM-1 17-11-2009.pdf
1904-CHENP-2004 OTHER DOCUMENT 17-11-2009.pdf
1904-CHENP-2004 OTHER PATENT DOCUMENT 17-11-2009.pdf
1904-chenp-2004 correspondence others.pdf
1904-chenp-2004 description(complete).pdf
| Patent Number | 239111 | |||||||||
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| Indian Patent Application Number | 1904/CHENP/2004 | |||||||||
| PG Journal Number | 12/2010 | |||||||||
| Publication Date | 19-Mar-2010 | |||||||||
| Grant Date | 08-Mar-2010 | |||||||||
| Date of Filing | 26-Aug-2004 | |||||||||
| Name of Patentee | THT PRESSES INC | |||||||||
| Applicant Address | 7475 WEBSTER STREET DAYTON OH 45414 | |||||||||
Inventors:
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| PCT International Classification Number | B22C9/00 | |||||||||
| PCT International Application Number | PCT/US02/37543 | |||||||||
| PCT International Filing date | 2002-11-22 | |||||||||
PCT Conventions:
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