The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 17, 2006
Filed:
Dec. 09, 2004
Mitsuru Adachi, Ube, JP;
Hiroto Sasaki, Ube, JP;
Yasunori Harada, Ube, JP;
Tatsuo Sakamoto, Ube, JP;
Satoru Sato, Ube, JP;
Mitsuru Adachi, Ube, JP;
Hiroto Sasaki, Ube, JP;
Yasunori Harada, Ube, JP;
Tatsuo Sakamoto, Ube, JP;
Satoru Sato, Ube, JP;
Ube Industries, Ltd., Ube, JP;
Abstract
A method of shaping a semisolid metal comprising pouring a molten aluminum or magnesium alloy which contains a crystal grain refiner and which is superheated to less than 50° C. above a liquidus temperature of aluminum or magnesium, directly into a vessel without using a cooling jig, maintaining the alloy in the vessel for 30 seconds to 30 minutes as a resultant melt is cooled to a temperature where a specified liquid fraction is established such that a temperature of the poured alloy which is liquid and superheated to less than 10° C. above the liquidus temperature or which is partially solid, partially liquid and at a temperature of less than 5° C. below the liquidus temperature decreases from an initial level and passes through a temperature zone 5° C. below the liquidus temperature within at least 10 minutes, whereby fine primary crystals are generated in the alloy, recovering the alloy from the vessel, supplying the alloy into a mold, and shaping the alloy under pressure.