Quality Control

• Analysis of raw materials

For the stability of the production, we always have a test for the raw material of its weight, moisture content, resin viscosity, fat and so on.

• O-ring detection

Size measurement, hardness test

• Visual analysis

Diameter (the phenomena such as the deformation of the diameter will be appeared because of the technics )

Sag (due to shrinkage of the material, part of the product surface will subside)

Lack of material (some part of the product is not full of material)

Flash (the excess material of non-structural part of the product)

Break (defect after break of parts)

Dirt (the dirt on the smooth surface)

Tensile, hardness, impact and other tests meet the standards to ensure that the end customers can consume without any problem.

• Destructive / mechanical test
  Tensile, hardness, impact and other tests meet the standards to ensure that the end customers can consume without any problem.

• Multi-steps test

Confirm the first product during the production. Check the product model, size, color, trademarks, flash, etc.

Use measuring tools, such as vernier caliper, plug gauge, thread plug and so on

Employees from time to time inspection

Workshop quality inspectors check every 2 hours at each machine.

Sales check 2 times a day

the manager of quality control will in charge of sampling after each batch of product goes to the warehouse

Each order will have a test report

• Various tests

Thermal deformation, test of Vicat softening temperature

melt flow rate determination

Density determination

Stretching test

Impact test

Hydrostatic test