Mould Main Channel introduction in Metal Injection Molding Process

Definition: main channel refers to the part  from  interface between injection machine nozzle and mould, to the end of sub-runner.

2. Mould design notice before metal injectionmolding process

(1)   Head face for main channel is usually round shape.

(2)   In general, the main Channel will design some inclination for ease to release from mold . But when the main channel across a number of boards at the same time, it is important to note that each pieces inclination size and hole size.

(3)    main channel size is subject to the flexibility of materials

(4) the main channel mostly use conical. Note follows  when you make mould:
A. the small end diameter D2 = D1, D2 + (0.5 ~ 1 mm)
B. the small end radius R2 = R1 + R2 (1 ~ 2 mm)
(D1, R1 refer to the diameter and radius of injection machine nozzle )

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