Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP4177ApriorityCriticalpatent/JPS5385538A/en
Publication of JPS5385538ApublicationCriticalpatent/JPS5385538A/en
PURPOSE: To increase the rate of temperature decrease in a heat treatment furnace while maintaining the uniform heat profile of a cartridge heater used in the furnace.
COPYRIGHT: (C)1978,JPO&Japio
JP4177A1977-01-051977-01-05Cartridge heater for furnace
PendingJPS5385538A
(en)