Shanghai Daoqin Plastics Co., Ltd.

智 can ring table/sheet is most new 出 科技 product, for/regarding can ring material most soft/flexible belt/tape separation, material solution/scheme most TPU, TPR, to TPSiv, TPU although has excellent force property can, use in table/sheet belt/tape upper, 但手感, weather resistance can 似乎缺乏流行元素, TPR has vast design 空间, in anti-scratch, resistant property can, strong/high degree 注定 无 method formed is 主流材 material.

1. material 桶;

material temperature degree rise high to 300~~350 degree use PC natural color 先 一边然 rear in use PE PC material dry 净. in drop temperature to TPU need temperature degree. in use TPU lower. 〈 if has specialized material material that is most good 〉

2. abrasion tool temperature degree:

different TPU他们 mold temperature is 不一样, 如90A~98A transparent product mold temperature generally is 20~40 degree. if is comparison hard TPU mold temperature need high 一点但不 need ultra- 60 degree. most main/primary is mold temperature need 恒定. generally 情况, selection cooling water.

3.材 material drying;

TPU wet property strong/high therefore different TPU他们 drying time, temperature degree is 不一样, main/primary is according to raw materials provide Data Sheet 实行. true drying comparison good.

4. molding temperature degree;

generally TPU molding temperature degree is 170~230 between if is transparent product 170~200 comparison good. temperature degree high product transparent degree decline.

5. molding process;

large more 数TPU need use high pressure slow speed, is TPU shrinkage rate large therefore need use high pressure slow speed. TPU flow property good easy generate material, easy using/adopting high back pressure and high 镙杆转 speed. back pressure generally in 0.3~~4MPA, 镙杆转 speed 30~~75r/min high 镙杆转 speed material and generate hot very large 就会导致材 material separation understanding. selection more grade injection, this product 就不会 generate large internal stress. product 就不容 easy deformation. and difficult demolding. abrasion tool gas is very important, gas defect product 会出现烧焦 or bubbles. molding cycle need stability, time 6~15秒. holding pressure in 5~10秒. cooling 20~60秒.

6. molding machine 台;

molding machine need selection injection amount need is amount 40%~80%. selection large machine.