What factors will affect the wear resistance of the thermocouple insulation performance

If you want to wear the thermocouple play its good performance, the main is the insulation is better, and will be the main factors influencing the abrasion resistance thermocouple insulation what?

a, the influence of high temperature, and all of us should know that all basic wear-resistant thermocouple in insulating materials, with metal oxide is made, and the oxide on the properties of the insulation may be because the temperature rise and fall, therefore, reduce the insulation material is because temperature and impact resistance performance is very important, prompting thermocouple even in the case of high temperature, also can appear the leakage current, or on the leakage current is very small, ensure the accuracy of the thermocouple in the aspect of temperature measurement, we can use, according to the thermocouple temperature to choose manufacturing insulating material, all in the temperature range, has more excellent insulation resistance. Second, the influence of the moisture absorption, when the wear-resisting of thermocouple on insulation material, moisture absorption serious to cause a decline in insulation resistance appears, will affect the whole measuring thermocouple is accurate and reliable performance, in order to effectively ensure that the thermocouple temperature measurement accurate and reliable performance, can be chosen has the following points: 1. Avoid thermocouple protection tube insulation materials and be affected with damp be affected with damp, before use, it can be carried out within the oven dry processing. 2. If the material on the tightness of the protecting tube is poorer, can undertake glass glaze sintered on the surface, but in this case, the temperature of the thermocouple used in the whole, all because of the limitation of glass glaze under certain; 3. And the use of high temperature cement, or sealing glass, and as a raw material for thermocouple moistureproof and seal.