How to maintain the wear-resisting of thermocouple

A, the first is to clean: to the main purpose of the cleaning of wear resistance of the thermocouple, in order to remove the dirt of surface, and to improve of thermocouple on the features, will effectively extend the service life of thermocouple. Second, followed by pickling, acid can be used for oxidation ability, to the surface of thermocouple, organic matter and other planting can be dissolved by acid to purify, directly to the wear resistance of the thermocouple, on the diameter of 80 mm circle placed in a beaker, and import the thirty percent or fifty percent of the chemical pure dilute hydrochloric acid, and then to soak for an hour and then remove it from the beaker, using distilled water to cook a few times, and the acid to remove completely. Is to the electrode surface, and in fact the main purpose of pickling of organic compounds, as well as relevant oxides and clean. Three, is the annealing: the purpose of annealing is to eliminate the internal stress of the motor, will increase the stability of wear-resistant thermocouple microtek phase, by annealing temperature and time, eventually achieve the purpose of the requirements, under normal circumstances, annealing mainly can be divided into two different ways, one is electric annealing, another is the annealing furnace.