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中文繁体The characteristics of HDPE bottles mainly depend on the raw materials. HDPE is a highly crystalline, non-polar thermoplastic resin. The characteristics of various grades of HDPE are the appropriate combination of four basic variables: density, molecular weight, molecular weight distribution, and additives. Different catalysts are used to produce polymers with tailored special properties. These variables combine to produce HDPE grades for different uses; achieving a balance in performance.
HDPE bottle The melting point of HDPE raw materials is about 130 degrees, and the relative density is 0.941~0.960. It has good heat resistance and cold resistance, good chemical stability, high rigidity and toughness, and good mechanical strength. Dielectric properties, good resistance to environmental stress cracking, melting temperature 220-260 degrees, for materials with larger molecules, the recommended melting temperature range is between 200-250 degrees.
HDPE plastic bottle is a bottle made of high-density polyethylene plastic, which has good chemical resistance. The production process includes material selection, bottle design, injection molding, bottle sealing, and other links.
First, choose the appropriate HDPE material. HDPE material has excellent physical and mechanical properties, chemical stability, and heat resistance, and is suitable for most chemicals and pharmaceutical raw materials that contain Cordyceps. Manufacturers need to choose the appropriate HDPE material based on the required strength, corrosion resistance, and pressure performance of the bottle.
Next, design the shape, size, and capacity of the bottle. When producing HDPE plastic bottles, the shape, and size of the bottle usually consist of three parts: the bottom, the body, and the mouth. HDPE bottles can be made in various shapes and sizes such as round, square, or oval. According to the requirements of customers, the manufacturer can produce plastic bottles of various capacities, such as 50ml, 100ml, 500ml, 1000ml, and other different capacities.
Injection molding is the main link in the production of plastic bottles. The manufacturer needs to heat the HDPE material at high temperatures, and then inject the molten material into the bottle mold. In the injection molding process, pressure and temperature are the key factors to determine the quality of plastic bottles. By controlling the temperature and pressure, it can ensure the same size, shape, and thickness of the bottle, thus improving the quality and stability of the bottle.
Bottling and sealing are the final steps in the production of HDPE plastic bottles. Before bottling and sealing, plastic bottles are strictly inspected to ensure that there are no defects. Bottling and closing require the use of established processes to ensure the quality of plastic bottles and reduce product contamination.
In short, the production of HDPE plastic bottles requires material selection, bottle design, injection molding, bottle sealing and other links. Manufacturers can produce stable, high-quality, and accurate-sized HDPE plastic bottles by mastering the technologies and processes of these links. In the future, with the advancement of production technology and increasing demand, HDPE plastic bottle production will become an increasingly important industry.
