1. Seal water surface design zero with zero.
2 box with the cover of the mating surface, empty 0.15-0.2mm gap.
3. Cover edge and the box body fit, the design of space-time 0.8-1mm, specifically to see product size.
4. tendon design generally thinner than the product, most of the ultra-thin products are transparent material, tendons tend to be too thick bubble.
Thin-walled products, mold structure design points:
1. Product shape is simple, without any down button and touch the hole, similar to the cup, the product surface more than 3 degrees, can be designed as a side gas, oblique gas, valves and so on.
2. Stripper board height of 1mm below, for the processing of tendons, stripper can be set up.
3. Multi-cavity mold design methods: (1) Independent self-locking: multi-cavity independent self-locking Suitable for all shapes thin-walled class mold design, each cavity independent, the bottom of the mandrel seed into the core composite board. (2) the overall clamping: the wall thickness greater than 0.8mm, the machine is relatively small, hard to put in, the overall structure, but to be explained in advance.
4. Cavity, core structure design: (1), cavity composite plate generally used P20 steel. (2) The cavity at the bottom of the single-chamber barrel structure is empty, and the steel plate with 45mm height above the press plate must be ensured. Prevent the cavity to produce flash. (3), the cavity along the mouth with inserts, to reduce the cavity thin steel cracking. (4) gate inlet water jacket, reducing hot runner cooling time.