Silicone tube surface inspection standard

May 07, 2020

Silicone tubing is a hose that everyone often uses, but do you really understand the production process of silicone tubing? The general production process of silicone tube includes: rubber mixing-extrusion-secondary vulcanization. The standard of silicone tube surface inspection is as follows:
1. Bubble:
A. The maximum bubble size does not exceed 20% of the wall thickness
B. No bubbles or pits on the outer surface of the tube
C. The continuous length of small bubbles cannot exceed 4 inches
2. Gel particles
A. Platinum silicone tube outer surface gel particle protrusion can not exceed 0.005 inches
B. No more than 4 gel particles exist within 1 inch
3. Color
The product produced in the production operation of the standard operating procedure, the color of the whole roll should be consistent
Silicone Straight Coupler
4. Surface defects and scratches
A No obvious flaws and scratches
B. The trace of collision is not longer than 0.5 inches
C. Within 12 inches of length, there are less than 3 draw marks when the tube is extruded
D. The particle size of impurities embedded in the wall of the tube is less than 20% of the wall thickness, and does not exceed 0.015 inches
The above is the inspection standard of silicone tube. Strictly according to the above standard, we can produce silicone tube with excellent quality.

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