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Patent Searching and Data


Title:
VAPOR PHASE SOLDERING DEVICE
Document Type and Number:
Japanese Patent JPS6133764
Kind Code:
A
Abstract:

PURPOSE: To prevent the leakage of vapor by opening a valve device to supply the cooling liquid in a tank to a sprayer to condense the vapor in a vapor vessel in a necessary case such as service interruption.

CONSTITUTION: A solenoid valve 12 opens and the cold heat medium 2' stored in a liquid storage tank 10 is fed to a shower nozzle 11 and is sprayed into the vapor vessel 1 when the service interruption arises. The temp. in the vessel 1 is quickly decreased and the satd. vapor of the heat medium is condensed and liquified by such spraying, by which the volume is considerably decreased. As a result, the negative pressure below the atmospheric pressure is temporarily generated in the vessel 1 and the vapor of the heat medium remaining in the vessel 1 is stored in the vessel 1. The leakage of the heat medium vapor is thus prevented.


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Inventors:
Shirai, Mitsugi
Sasaki, Hideaki
Ueda, Teishun
Application Number:
JP1984000152928
Publication Date:
February 17, 1986
Filing Date:
July 25, 1984
Export Citation:
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Assignee:
HITACHI LTD
HITACHI TECHNO ENG CO LTD
International Classes:
B23K1/015; H05K3/34; (IPC1-7): B23K3/04