Plastic components and sub-assemblies

The successful design and production of plastic components requires careful attention to be paid to many elements. The choice of plastic material depends on the desired performance characteristics - will parts be under constant load? Will they come into contact with chemicals? If the parts are made of different materials, how do the materials work together?

Plastic materials shrink at different rates, which impacts part integrity. For instance, thermoplastics are heated at high temperatures and injected into a mould cavity. As they cool, they shrink and thick cross sections cool at a lower rate than thin cross sections, so are likely to cause distortion of the part after removal from the mould . By adding ribs to the design it can minimise distortion and increase rigidity and strength.

Assembling plastic parts can be done in several ways:

Mechanical: Press-fit and Snap-fit are popular techniques. If a product has to be dis-assembled at some point in its life – e.g. a removeable battery pack,– then it is the preferred assembly method especially for low-volume applications when the cost of capital equipment is high compared to the component value.

Adhesives: When applications contain materials that are not compatible, adhesives are usually the preferred method for a permanent solution.

Friction and heat methods: Ideal when a permanent or tamper-proof seal is required. Methods include Ultrasonic Assembly, Vibration Welding and Spin Welding.

Quality-control checks for assembled components often revolve around their mechanical strength and measuring their ability to withstand stresses and strains during their operation over a product lifecycle. Using Mecmesin force and torque measurement equipment is a cost-effective way of performing those QC checks.

Standards

Featured or equivalent test standards for Mecmesin solutions in this section

Mecmesinは、私たちの質問に揺るぎないサポートを提供するカスタマーサービスを提供しており、常に必要な結果と回答を提供します。このソリューションは、私たちに門戸を開き、私たちのニーズとともに成長し続けます。それは私たちが必要だとは知らなかったすべてであり、私たちが求めることができるすべてでした。使い方は簡単で、非常にユーザーフレンドリーなソフトウェアと私たちが毎日使用するプログラムへの変換を使用して習得することができます。 Mecmesinで次のステップを踏み出すのを楽しみにしています！

Terri Lebow、品質マネージャー
Vintech Industries Inc.

Case study