HEAT USAGE ТО LOW DOWN DISPLACING MOMENTS WHILE UNSCEWING PUMP-COMPRESSOR PIPES
The article presents results of preliminary testing of "heating unfastener" (a device designed by the authors of the present article) for pump-compressor pipes before their unscrewing in order to low down unscrewing moment. Method of testing as well as process of heat impact is described. Some technique of reducing pressures of thread surface during heating is considered. It is proved that heating effect is observed only in a definite time interval and with some definite volume of water, injected into container with "unfastener"