China Nylon PA Manufacturer, Supplier, Factory

Don't all customers want high rigidity, high strength, and high impact resistant rotational molding materials? Do customers still need materials as crispy as cookies? Let's take a look together.

On August 20th, Professor Wang and Professor Li, who are responsible for polyolefin research at Zhejiang University, visited our company for exchange. General Manager Wen Yuan introduced them to the development history of the rotational molding industry, the main sources of rotational molding base materials, the specific application scenarios of rotational molding products, and our company's development situation.

At present, in the selection of inserts, most of them use: 1. brass; 2. Zinc aluminum alloy; 3. Stainless steel (anti-corrosion, corrosion-resistant);Defect Solution | Rolling Plastic Fuel Tank Science Popularization -2- Principle and Solution of Coating Problem ② Temperature and Embedded Parts (Expert Article) At present, in the selection of inserts, most of them use: 1. brass; 2. Zinc aluminum alloy; 3. Stainless steel (anti-corrosion, corrosion-resistant); The basic components of embedded assembly are: 1. Embedded screws; 2. Mold cavity wall; 3. Embedded components; Material selection for inserts: 1. Good thermal conductivity; 2. Sufficient mechanical strength (details will be elaborated in the next section).

In the development history of rotational molding, there are two mainstream processing techniques, namely granulation process and dry mixing process. The overall process has significant differences, being two distinct pre-treatment methods for product processing materials.

Rotomolding HDPE, short for rotationally molded high-density polyethylene, is a specialized thermoplastic material used in the production of large, seamless, and durable hollow products. The rotomolding process involves heating powdered HDPE resin inside a rotating mold, ensuring even material distribution and the formation of stress-free structures. This technique has gained immense popularity across industries such as automotive, agriculture, marine, and chemical storage due to its ability to produce complex shapes with exceptional strength and longevity.

​TS505U20CP is an external lining material designed specifically for harsh environments. It combines a variety of superior properties to effectively cope with complex outdoor and corrosive conditions.