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Temperature Is An Essential Aspect Of Rotational Molding Process
Ningbo Wanma Plastics Co.,Ltd | Updated: Mar 14, 2016

Temperature is an essential aspect of rotational molding process, in particular, appropriate temperature control in the heating process is undoubtedly the most important means to improve product quality. With polyethylene as an example to illustrate this problem, polyethylene rotational molding process has a special phenomenon: in powder in the melting process, stranded between the particles of air to form a bubble, as the heat continues, the bubbles disappear. Further research showed that these bubbles disappeared not because they are under the influence of buoyancy moves to the free surface of the melt, but because of the gradual integration of the air in the bubbles in molten plastic melts. Therefore, for polyethylene rotational molding, scientifically controlled heating process to eliminate bubbles in polyethylene products, improve product quality is of great significance.

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