Auto Part
High-Density Polyethylene (HDPE) is widely utilized in the automotive parts and accessories industry, primarily due to its exceptional physical and chemical properties. HDPE offers excellent impact resistance, chemical corrosion resistance, and UV stability. Its lightweight nature makes it an ideal choice for automotive weight-reduction designs, helping improve fuel efficiency and reduce carbon emissions.
In automotive manufacturing, HDPE is commonly used to produce components such as fuel tanks, dust covers, bumper liners, and coolant reservoirs. Furthermore, HDPE features a high recyclability rate, aligning with the automotive industry's current demands for environmental protection and sustainable development. With the rise of electric vehicles (EVs) and smart cars, requirements for material performance have become increasingly stringent; however, HDPE continues to play a vital role thanks to its advantages in being lightweight, durable, and cost-effective.
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Producing Curved Automotive Ducts by Blow Molding
Automotive air ducts and similar hollow components are long, curved and irregular, so the parison has to hang straight and keep enough wall thickness through every bend. Chen Way supplies an accumulator die head machine configured for these parts, using a single-stroke parison and, where specified, multi-point parison programming to control how material is distributed along the duct.
HDPE is a common resin for these components because of its impact and chemical resistance and low weight, but the final grade is set by the part specification. Irregular ducts are usually trimmed after molding; production footage from a customer plant in Taiwan shows flash removed by hand, so trimming belongs in the cell plan. The auto parts accumulator machine shows the configuration; send the duct drawing, resin grade and annual requirements for review.