Analysis of the causes of wrinkling on the surface of PVC transparent tube
(2019/7/12)
PVC transparent tubes sometimes wrinkle during the production process, mainly for the following reasons
First, the temperature of the die is not uniform. Uneven temperature will lead to uneven heating of the raw materials. The heating coil should be inspected to ensure that it is evenly nested in the die.
Second, the cooling effect is not good The hose is not fully cooled after production, to reduce the temperature of the cooling water to completely cool it.
Third, the traction speed is not suitable Traction speed or fast or slow will affect the surface finish, to adjust the traction speed.
Fourth, the material has impurities impurities in the production of raw materials will lead to flaws on the surface of the hose, resulting in wrinkles, the replacement of raw materials.
5. Low temperature of the fuselage and components. If the temperature is too low, the production process will not meet the requirements, which will affect the processing quality. It is necessary to increase the temperature of the fuselage and components.