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    Mao Xin's answer - the reason and solution of the poor transverse tensile strength of the film

    release time:2020-03-03  viewed:1084次
     Common problems in film blowing process and Solutions
     
    Cause of failure:
     
     
     
    ① The traction speed is too fast, and the difference with the inflation ratio is too large, which makes the longitudinal fibrosis and the transverse strength worse.
     
    ② Cooling speed of cooling air ring is too slow.
     
     
     
    resolvent:
     
     
     
    ① Properly reduce the traction speed to match the blowing ratio.
     
    ② Increase the wind speed of the wind ring to make the blown film block cool quickly and avoid pulling down the stretching direction at a higher temperature.

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