What Are The Common Problems In Rotational Molding?

The perfect result of rotational molding is to produce high-quality rotational molded products. However, due to factors such as raw materials, equipment, molds, processes, and product structures, various problems often occur during or after the processing of rotational molded products. Most of these problems are problems with the products, some are equipment and mold problems, and some are process problems.

To sum up, the more common problems in rotational molding processing are:

The product has bubbles and pinholes;

The surface and inner wall of the product are uneven and frizzy;

The wall thickness of the product is uneven, with some parts thick and some parts thin;

The corners of the product have chipping and bridging phenomena;

Products are prone to shrinkage, warping, and deformation after being demoulded;

Product color solution;

The product has low strength and poor rigidity;

The product cannot be released from the mold;

The bonding fastness between inlays and products is low;

Molding heating time is too short or too long;

Flash appears on the product;

Blockage of ventilation tube;

The mold deforms or even explodes;

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These problems that occur during the rotational molding process not only affect the appearance of the product, but also damage the mechanical properties of the product, affect the use efficiency of the product, and even lead to the scrapping of the product. Therefore, it is necessary to fully understand the importance of solving the above problems and find out the causes of the problems, thereby improving the efficiency of rotational molding processing and the quality of products.