Transparent large two-color injection moulding for structural design, which needs transparent large two-color injection moulding for automotive moulds is the point to be noticed for structural design:

Automobile mould

A. Reservation of gate position must be agreed in advance with the die factory; automobile die

B. Material thickness is recommended to use transparent 0.8mm or more, non-transparent 0.7mm or more, non-transparent use light color as far as possible, and pay attention to shading when there are LED lights;

C. The width of parting surface and hole of transparent part is the same. The width is recommended to be 0.5mm. The surface is smooth, avoiding side view. It can penetrate far away, not beautiful and minimize holes.

D. The thickness of opaque parts is limited. The upper ribs and other structures should be between 0.5 and 0.6 mm to avoid shrinkage.

E. For the moment, it is not recommended to make two-color injection moulding with primary lens. The cost of moulds and products is too high. There are considerable requirements for the equipment and technical level of the mould manufacturer.

F. For large-area two-color injection moulding parts, the two key tests are drop and hot and cold impact. In these two tests, transparent and non-transparent parts are easy to detach. Hot and cold shock - 40 - 65, 48 hours.

G. The structure of two-color parts should be simplified as far as possible, and the width of ribs of opaque parts should be 0.5-0.6 mm to avoid shrinkage.