Causes and solutions of FEP teflon wire in china cracking

Causes of cracking:

1. The quality of FEP teflon wire is poor, the molecular weight of resin is too small or the distribution is too wide, the content of hexafluoropropylene is too low, the composition distribution is uneven, the unstable groups produce macromolecular chain breaking, and the spherulites are too large and fragile, reducing the bearing strength of the material.

2. The color masterbatch added with FEP teflon wire does not fuse. If ETFE color masterbatch is used, it may cause skin tear.

3. Improper extrusion process, too small model, improper die selection, too large DRB, DDR imbalance, etc

4. Uneven resin components cause poor plasticization and internal stress cannot be eliminated.

5. Operating environment: the temperature is too low

6. Life is up.

7. No matter imported brand materials such as DuPont and Dajin, or domestic brand materials such as Dongyue and Juhua, no one will guarantee that the FEP cable will not crack.

resolvent:

1. The FEP teflon wire in china shall be selected properly, regardless of DuPont, Daikin, Dongyue and Juhua. The right model shall be selected and the financial index shall be appropriate.

2. FEP teflon wire in china is added with special color masterbatch.

3. Extruder model: large machine makes large line and small machine makes small line. The die selection is appropriate, DDR = 50-150, DRB = 095-1.05, and the extrusion speed is slightly slow.

4. The plasticizing temperature is appropriate to avoid poor plasticization.

5. Correct use to eliminate environmental impact.

The common characteristics of FEP teflon wire in china high temperature line are high temperature resistance and flame retardant. At the same time, it also has excellent corrosion resistance and strong acid and alkali resistance; Excellent electrical insulation performance is also a major feature of fluoroplastic high temperature wire, with high voltage resistance, low high frequency loss and large insulation resistance; Aging resistance and long service life.

FEP teflon wire in china high temperature wire is widely used in high temperature environment such as automobile harness, household appliances, lighting lamps, electronic appliances, instruments, motors, industrial instruments and so on.

In the automotive field, it can be used for battery pack harness, fan harness, sampling harness, etc;

In household appliances, it can be used for internal wiring of air conditioner, microwave oven, electronic disinfection cabinet, electric rice cooker, electronic thermos, electric heater, electric oven, electric frying pan and so on;

In the electronic industry, it can be used for temperature compensation wires, low temperature resistant wires, high temperature heating wires, aging resistant wires and flame retardant wires.