Puristusmuotoilu

Puristusmuotoilu, also known as compression molding, is a manufacturing process used for shaping thermosetting polymers. In this method, a pre-measured amount of plastic material is placed into a heated mold cavity. The mold is then closed, and the material is subjected to high pressure and temperature. This process forces the plastic to flow and fill the mold's shape while simultaneously curing, or cross-linking, due to the heat. Once the curing is complete, the mold is opened, and the finished part is ejected.

The key characteristics of puristusmuotoilu are the use of thermosetting materials, which undergo an irreversible chemical change during curing, and the application of heat and pressure simultaneously. This makes it suitable for producing parts that require high strength, rigidity, and resistance to heat and chemicals. Common applications include electrical components, automotive parts, kitchenware, and durable consumer goods. The process is generally cost-effective for producing large volumes of identical parts. However, it can be less suitable for complex geometries or designs with undercuts compared to other molding techniques. The tooling for puristusmuotoilu can be relatively simple, contributing to its economic viability.