Production Process Requirements For Nylon Wire And Cable Sheaths

Because nylon material is a polar medium, it is easy to absorb moisture. According to experts, when the moisture content of nylon material exceeds 0.3%, it cannot be extruded. In the actual workshop production process, it is found that after the nylon material becomes damp, the extrusion sheath will bubble, such as foam, granules and damage.

Thhn wire, Common models of nylon cables are thhn 400, cable thhn、 thhn 350, 4/0 copper cable thhn or equivalent, etc. If the capacity is too large, the material in the dryer will not be able to rotate, resulting in uneven heating. The time cannot be too short. If the time is too short, the water cannot be removed.

Of course, the time cannot be too long. Long time will cause some materials to oxidize and change color. Can not meet the extrusion surface requirements. The vacuum degree of vacuuming should be above 0.05MPa, otherwise the water will be difficult to remove. You can also use water vapor heating to control the heating temperature based on the amount of water vapor. The best temperature is 80±50℃. If the heating temperature is too high, it will cause nylon The material will oxidize and turn yellow. The maximum operating temperature of 2 awg thhn cable, thhn 8 philippine standard, 4-0 thhn, 2/0 thhn copper is usually 90 degrees Celsius.