The Characteristics of Rotational Molding Technology and Materials

Rotational molding is a kind of thermoplastic plastic hollow molding method. This method is to add plastic raw materials into

mold at first, rotate and heat the mold, plastic raw materials gradually melt adhesive and evenly coated on the entire surface

of the cavity under the action of gravity and thermal energy, forming the shape of the required, then cooling and shaped into

products.

1) Products with even wall thickness, no edge waste, no weld; Be able to form various range of wall thickness such as

polyethylene rotational molding parts, wall thickness range can be in 1 ~ 16 mm.

2) usually only made hollow products or shell.

3) Suitable for molding large and super large parts. So, in theory, made of rotational molding technology products,

almost no limit on size.

4) Suitable for many varieties, small batch production of plastics products

5) Suitable for processing complicated shape of large-scale hollow products, this is unmatched by other molding process;

6) Easy to change the plastic products color.




Polyethylene (PE) is one of the world's most major and dosage of plastic with the resin of absolute dominance, according

to the dosage size plastic resin of prioritize as follows:

PE(LDPE, LLDPE, HDPE, XLPE, mLLDPE, EVA) 95%;

Polyvinyl chloride (PVC) 3%;

Nylon(Nylon 6, Nylon 66, Nylon 11, Nylon 12)<0.5%;

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