Focus on Blow Molding Machine R & D and manufacture for 30 years
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- E-mail：marketing01@tonva.cn
- Company address：No.30,huihai Road,Bingang Industrial zone, Shamen, Yuhuan, Taizhou, Zhejiang,China
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Cause of occurrence：
①Poor exhaust of mould
②Leakage of mould or condensation of mold cavity
③Poor plasticity of parison
④Insufficient blowing pressure
⑤Blowing speed is slow
⑥Blow ratio is too small
Solution measures:
①The mould parison is subject to sand blasting, and the vent hole is added.
②Repair the mould and adjust the cooling temperature of the mould above the 'dew point' ③Reduce screw speed and increase heating temperature of extruder
④Raise the blowing pressure
⑤Clean the compressed air passage and check if the blowing rod is leaking
⑥Replace die sleeve and die core to improve billet blowing ratio
Focus on Blow Molding Machine R & D and manufacture for 30 years
Contact us