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

Mecmesin은 질문에 대한 확고한 지원을 제공하는 고객 서비스를 제공하며 항상 필요한 결과와 답변을 제공합니다. 이 솔루션은 계속해서 우리에게 문을 열어주고 우리의 필요에 따라 성장합니다. 우리가 필요로한다는 것을 몰랐던 모든 것이었고 우리가 요청할 수있는 모든 것이 었습니다. 사용하기 쉽고 매우 사용자 친화적 인 소프트웨어를 사용하여 마스터 할 수 있으며 매일 사용하는 프로그램으로 변환 할 수 있습니다. Mecmesin과 함께 다음 단계로 나아가기를 기대합니다!

품질 관리자 Terri Lebow
Vintech Industries Inc.

Case study