1. The packing in defrost heating tube has good thermal conductivity, which can transfer the heat generated by the electric heating wire to the protective sleeve in time.
2. The filling in the Tubular defrost heater has sufficient insulation and electrical strength. We all know that the metal casing and the heating wire are not insulated. Caulk can be used to insulate the gap between the heating wire and the casing when it is tightly filled. When The defrost heaters are powered, the tube body is not charged and the use is reliable.
3. The packing in Freezer defrost heating tube has high heat resistance and a coefficient of expansion similar to that of the heating wire, which limits the displacement of the heating wire during the manufacturing process of contraction, annealing and bending of the heating tube.
4.The filling material in The defrost heating tube is chemically inert to the electric heating wire and will not react with the electric heating wire, affecting the characteristics of the electric heating wire.
5.The packing in The defrost heater has high mechanical property and temperature polarity change characteristics, which can protect the electric heating wire from external mechanical pressure and impact; The temperature rises suddenly in a short period of time, and the tube wall will not expand and burst due to excessive expansion. For example, the temperature of the mold electric heat pipe will rise to 3~4℃ within a few seconds or even a few seconds after the power is turned on.
6. The hygroscope is small, so even if the seal is contaminated, the filler will not absorb a large amount of water in contact with the air in a short period of time, resulting in leakage or due to thermal expansion and cold contraction, water evaporates into air, air is heated and expanded, resulting in explosion.
7. The material source is wide and the price is low, which reduces the production and use cost of the electric heat pipe.
Post time: Mar-22-2024