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US 5,707,228 AGranted
Heat treatment machine having a cooling chamber
AssigneeHyundai Motor Company
InventorDoo Hwan Lee
Life of this patent
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Abstract
The present invention relates to a heat treatment machine for laboratory use which has a cooling chamber incorporated with a heating chamber of a furnace, both chambers are formed with a vacuum tube of simple construction, in which heating and cooling of a test piece are performed in vacuum atmosphere. The cooling process can be effected following the heating process with maintaining the same vacuum atmosphere, whereby a rapid cooling of the test piece is allowed and physical characteristics of the treated metal can be improved.
Claims5
A heat treatment machine comprising:
- a heating chamber for heating test piece to the predetermined temperature during a time period;
- a first extending tube extending horizontally from said heating chamber to a coupling flange provided at the outer end thereof;
- a second extending tube having a predetermined length and same diameter as that of the first extending tube for communicating with the first extending tube;
- a cooling chamber coupled with a branch tube of the second extending tube by a flange coupling, and extended downwardly from the bottom of the second extending tube, and having a cooling tank provided around the cooling chamber at a predetermined depth;
- a moving means provided on the top wall of the second extending tube for moving the test piece from the heating zone of the heating chamber to the cooling zone of the cooling chamber;
- a vacuum pump means for maintaining the heating chamber and the cooling chamber in a vacuum atmosphere;
- and
- a vacuum control means for sensing vacuum level of each chamber and controlling operation of the vacuum pump means in response to the level of vacuum.
5 more elements
Dependencies are inferred from the claim text.