In the application field of industrial industry, the selection of flexible cable sheath material for the drag chain on mechanical equipment plays a great role in the quality and service life of the cable. The sheath is an indispensable part of the flexible cable, so the material selection is very important.
In the industrial market, users who need to use flexible cables know that there are two kinds of flexible cables, one is PVC and the other is pur. They have their own functions and have different effects.
Difference between PVC and pur materials:
1. PVC sheaths are cheaper than pur sheaths and are commonly used.
2. Although the physical function of (polyvinyl chloride) PVC material is relatively good, it has poor stability to light and heat. Under the special environment of long-term exposure or overheated temperature, it will simply differentiate and then affect the service life of flexible cable.
3. (polyurethane) pur flexible cable is an elastomer rubber between PVC flexible cable and rubber, so the stability of the material is relatively good. The price may be a little expensive.
4. Another aspect is that different scenarios are used. Although the cables of both materials can be used on the flexible drag chain cable sheath, the PVC cable can be used to the wet environment for light and heat, but it can not be used outdoors for a long time; In addition to better performance than PVC, PUR also has strong tensile and wear resistance, oil resistance, moisture resistance and corrosion resistance, which greatly increases its application range.
Therefore, the application function of PUR is better than that of PVC whether indoors or outdoors or in wet environment. In the environment with high requirements, PUR material is better than PVC material. In the bending state, it can quickly return to its original state. I'm sure it's more expensive than ordinary flexible cables.
Therefore, it is often used in some high-end electrical equipment or products with high environmental requirements. The advantage of PVC flexible cable is low price. Therefore, it has also become a more extensive sheath material in high flexibility traction cables.
