nice injection gate for mouldt|he most importance fluence for nice injection gate|Sino Mould

Nice injection gate is the important issue for the preform mould. Gate mark too long is the main  issue that influenced the preform. To solve this issue we check out the reasons and also get the solution from them . Here are the solution ensure the  Preform mould nice injection gate

Long gate mark means the preform have too long raw material. Probably reasons can be divided into four parts. The first cause is that the injection gate is too cold when the valve is closed. To avoid this matter, we should first increase the injection nozzle temperature. And also we longer the valve injection time.

The second reason is that the valve abnormally close. When facing this issue, we should do the follows.

1. Increase the mould sub runner temperature.
2. Check whether the hydraulic pressure is suitable.
3.clear up all the part ,nozzle,manifold, connect part..
The most important issue is to ensure the seal ring, whether it is ok.

The third reason is that the raw material viscosity is too high, in this condition we should increase the material temperature to reduce the flowing material viscosity. and of course the raw material match the  preform is the most important idea. The last reason is that the flowing material heating is too lower , can not flowing smoothly. When this phenomena happens we should first increase the runner temperature and the nozzle tip temperature.

Sino provide u Preform mould with nice injection gate. Any interested ,please contact me freely .

Written by Angela
Skype: anole-4
E-mail : sales9@sinomould.com
Website:www.sinomould.com