DEVICE FOR FIXING PARTS BY WAY OF FREEZING

摘要

FIELD: thermoelectric engineering. ^ SUBSTANCE: proposed device has pipeline divided by means of control unit into three coolant circulation loops. First loop is brought in thermal contact with part, Two other loops are joined with thermoelectric batteries. One of these batteries is designed for cooling and other one, for heating. Control unit couples two loops into single channel and affords flow of either cooled or heated coolant within channel. Thermoelectric battery has alternating p and n branches connected into electric circuit by means of keyboards. Butt-end surface of p branch contacts one of keyboard surfaces and n branch contacts other one. Ends of keyboards protrude beyond surface of structure formed by thermoelectric battery branches. T-section leads of keyboards are soldered to insulated pads made in the form of metal or alloy films applied to ceramic boards. ^ EFFECT: enhanced effectiveness and reliability of fixation. ^ 1 cl, 2 dwg