In order to avoid unnecessary time-wasting and troubles during mass production, it is indeed necessary to pay patience to adjust and control various processing conditions, find the best temperature and pressure conditions, and formulate standard test procedures, which can be used in establish daily working methods.

Mold trial process: (CHT mold trial verification standard)

1. Understand the relevant information of the mold:

It is best to obtain the design drawing and product drawing of the mold, and analyze it in detail by the mold technician and the tryout technician:

• Mold precautions (hot runner, valve, cylinder, ejector, slider, cooling, etc.)
• Product precautions (materials, deformation, sticking, ejection, metering, pressure, size, shrinkage, shape, etc.)

2. When it is determined that each part of the mold moves properly:

• The injection measurement settings are very important. (Principle: the lowest first segment is convenient for ejection measurement)
• Check the size and weight (compare with the design value)
• Evaluation of molding conditions; adjustment test of condition parameters above +/-10% (principle: medium speed and medium pressure, except for special)
• Mass production evaluation: (cycle, manipulator, temperature, valve, cooling, appearance, etc.)

3. Test model verification report:

• Mold improvement items: (runner, movement, exhaust, mold sticking, cooling, deformation, etc.)
• Product improvement items: (welding line, lack of glue, shrinkage, burrs, step difference, size, etc.)