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2021-08-17

How to judge the quality of a rotational molding machine

Rotational molding machines are suitable for producing a variety of complex hollow parts. During the roller forming process, the material is gradually coated and accumulated on the inner surface of the mold. The products have a strong ability to replicate fine structures, such as patterns on the mold core, because the mold is not affected by environmental pressure during the forming process, allowing it to be directly used to make molds with intricate structures and complex shapes.

2021-07-20

What are the characteristics and advantages of the rotational molding process for plastic products?

Through recent follow-up surveys with customers, we found that many customers do not understand rotational molding products very well and hope that manufacturers can provide further explanations.

2021-07-20

Common polishing methods for rotational molding molds

To achieve high-quality polishing and grinding results, the most important thing is to have high-quality tools and aids specifically for polishing and grinding, such as sharpening stones, grinding sandpaper, and bare diamond polishing paste.

2021-07-19

Rotational molding process is not as simple as it seems.

Rotational molding, also known as rotomolding, rotational forming, or rotary molding, is a process where plastic raw materials are first added to a mold. The mold then continuously rotates along two perpendicular axes while being heated, allowing the plastic materials inside to gradually and evenly coat, melt, and adhere to the entire surface of the mold cavity under the influence of gravity and thermal energy, forming the desired shape. After cooling and solidifying, the product is demolded to obtain the finished item.

2021-07-19

Do you understand the rotational molding process of transparent rotationally molded products?

Transparent rotational molding products require high light transmittance, which inevitably demands strict surface quality standards for the molded products. There must be no streaks, air holes, or whitening. Defects such as haze, black spots, discoloration, and poor gloss must be avoided. Therefore, throughout the injection molding process, great attention must be paid to the materials, equipment, molds, and even the design of the products, with strict and even special requirements being proposed.

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