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Title:
UTILIZATION 0F COOLING MEDIUM GAS IN LOW TEMPERATURE FORMATION AND LOW TEMPERATURE FORMING APPARATUS UTILIZING COOLING MEDIUM GAS
Document Type and Number:
Japanese Patent JPH08150424
Kind Code:
A
Abstract:

PURPOSE: To improve the working efficiency and to reduce the production cost by utilizing cooling medium gas generated in a blank cooling device, at the time of press-forming the blank while cooling with the cooling medium of liquid nitrogen or liquid helium, etc.

CONSTITUTION: At the time of forming by taking out each one piece from a stacker 1 laminated with the blank M, dipping into the cooling medium 3 in a blank cooling device 5 and supplying to a press machine 7 after cooling to the low temp. range, the low temp. cooling medium of gas generated in the blank cooling device 5 is introduced into a housing 47 in the range of the stacker 1 and utilized to the pre-cooling of the blank M, and the cooling of a carrying device 11, a laying table 13, etc., of the blank M. At the same time, the cooling gas is introduced into a place, at where the working range containing the upper and the lower dies 7U, 7L in the press machine 7 is surrounded by a casing, to pre-cool the working range. By this method, at the time of carrying the cooled blank M from the blank cooling device 5, the production of the water drips caused by the dew condensation is prevented.


Inventors:
IWASE TAKAKUNI
ITOU YUKINAGA
Application Number:
JP29466594A
Publication Date:
June 11, 1996
Filing Date:
November 29, 1994
Export Citation:
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Assignee:
NISSAN MOTOR
International Classes:
F25D3/11; B21D22/20; B21D24/00; B21D37/16; (IPC1-7): B21D22/20; B21D24/00; B21D37/16; F25D3/11
Attorney, Agent or Firm:
Hidekazu Miyoshi (8 outside)