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:
Jan. 06, 1998
Filed:
Mar. 22, 1996
Atsushi Suzuki, Sayama, JP;
Kazuya Sakamoto, Sayama, JP;
Shinji Kazama, Sayama, JP;
Nobumasa Hamazoe, Sayama, JP;
Masayoshi Kai, Sayama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A method for heating a metal ingot for a injection molding comprising steps of finding out a time in advance relating to the time required for heating up to a set temperature in a test by using a thermocouple and a timer in a test furnace, of heating the ingot to the set temperature by heating it for that period of time in an actual furnace and of measuring a temperature at that time by a radiation thermometer to reserve the temperature based on the measurement. Further, it comprises steps of detecting an oxygen concentration within an atmosphere of the heating chamber after evacuating the heating chamber of the metal ingot to fill with an inert gas and of controlling power fed to an induction heating coil to heat the metal ingot when the detected oxygen concentration within the atmosphere is below a predetermined value.