The production process of PET Self Wrap Braided Sleeve

The production process of PET Self wrap braided sleeve is relatively complicated, including four parts: heat treatment, surface treatment, shaping process and stabilization process.

Part 1: Heat Treatment of PET Self Wrap Braided Sleeve
If you want the PET self-wrapping Braided Sleeve to have good elastic properties, heat treatment is an indispensable process. Bellows heat treatment can eliminate work hardening during the manufacturing process, restore the plasticity of the Pet Self Wrap Braided Sleeve, and at the same time strengthen the material and obtain elasticity.
Bellows heat treatment has its quality requirements inside and outside. The internal requirement is to obtain a certain microstructure, grain size and mechanical properties of the product after heat treatment; the external quality is mainly the degree of surface oxidation after heat treatment.
Part II: Surface treatment of PET Self Wrap Braided Sleeve
Process treatment mainly includes degreasing, loosening and pickling, etc., so that the surface of PET Self Wrap Braided Sleeve products is smooth and clean.
Part 3: Plastic process of PET Self Wrap Braided Sleeve
After the bellows is formed, due to the elastic rebound, the wave pitch and wave type of the bellows are different from the requirements of the suction meter, so it must be shaped.
For PET Self Wrap Braided Sleeve made of work-hardened materials, generalists use manual and mechanical shaping methods. For the PET Self Wrap Braided Sleeve made of dispersion hardened material, the corrugated tube is shaped by loading it into the aging fixture, and finally achieves the shaping effect.
Part IV: Stabilization process for PET Self Wrap Braided Sleeve
The bellows will generate internal stress during processing, making the elasticity and geometric dimensions of the product unstable. The purpose of stabilization is to relieve stress, stabilize performance and geometry. The stabilization treatment of bellows includes thermal stabilization treatment process and mechanical stabilization treatment process. Under normal circumstances, only heat stabilization treatment is performed, and mechanical stabilization treatment is performed only when there are special requirements.