Plastics have become a cornerstone in modern manufacturing, thanks to versatile processing techniques such as injection molding, thermoforming, extrusion, and blow molding. These methods allow for the creation of intricate and diverse shapes, with a wide range of polymer compounds available to tailor materials for specific applications. The use of plastics has introduced numerous innovations, enhanced product performance, and significantly lowered production costs.
In today’s highly competitive white goods industry, manufacturers are constantly seeking ways to boost efficiency and cut expenses. Plastics, with their lightweight nature, ease of processing, and resistance to corrosion, perfectly align with these goals. For example, polypropylene is traditionally used in the inner tubs of dishwashers. While it offers excellent corrosion resistance, it can be expensive. To reduce costs, companies often opt between using sprayed steel instead of stainless steel or switching to polypropylene for the inner drum. Compared to other options, polypropylene provides a more cost-effective solution, making it the preferred choice in many cases.
When it comes to polypropylene drums, the key requirements include material strength, heat resistance, and good processability during injection molding. Material properties, processing characteristics, and design features are closely linked. While material properties apply broadly to a class of materials, design characteristics are specific to individual products. Therefore, both must be considered in relation to the size and shape of the final product. In the appliance industry, materials like stainless steel have long been popular due to their durability and corrosion resistance, but they come at a higher cost. As a result, the shift toward plastics like polypropylene is not only practical but also economically advantageous.
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