The Importance Of Material Selection
Selecting the right material is crucial in engineering projects, as it directly impacts the functionality, durability, and safety of the final product. Each material possesses unique properties like strength, flexibility, thermal conductivity, and resistance to environmental factors, dictating its suitability for specific applications.
Choosing an inappropriate material can lead to structural failures, reduced lifespan, or increased maintenance costs. Additionally, the right material choice can enhance efficiency and sustainability, reducing environmental impact. Engineers must consider these aspects, alongside cost and availability, to ensure the success and longevity of their projects, making material selection a fundamental aspect of engineering design.
For advice or more information call us today on +44(0)1827 712910 or email us at sales@coler.co.uk
Understanding Plastics
Plastics are composed of elements like carbon, oxygen, hydrogen, and nitrogen, often combined with other organic or inorganic substances. These elements form polymers, giving plastics their distinct characteristics. Typically solid at room temperature, plastics become malleable when heated, allowing them to be easily shaped. This transformation is central to the manufacturing process, where heat softens the plastic, and pressure shapes it into desired forms. Upon cooling, the plastic solidifies into its new shape.
This ability to melt, reshape, and then solidify is what makes plastics so versatile. By varying the composition, plastics with different properties can be created, ranging from rigid and strong to flexible and resilient. The term 'plastics' encompasses this diverse and adaptable group of materials, capable of fulfilling a wide range of applications, from household items to complex engineering components.
Material Properties
Wall thickness of plastic parts
Wall thickness too thin
- Low strength;
- increased flow resistance, which results in insufficient filling of molds
Wall thickness too thick
- Parts have quality problems such as shrinkage, holes and warping
- Parts require longer cooling time and lead time.
- Parts require more material, which increases the cost of parts.
Suitable wall thickness ranges for common plastic materials(Unit: mm):
| maximum | 0.9 | 0.6 | 0.6 | 1 | 1 | 1.5 | 1.5 | 1.5 | 1.5 | 1.5 |
| minimum | 4 | 3.5 | 3 | 4 | 4 | 5 | 5 | 5 | 4.5 | 5 |
Factors determining the wall thickness:
- Strength requirements on parts
- Whether the part can resist demolding force in molding
- The part can resist fastening force in assembling
- When there’s metal insert, whether the strength around the insert is enough
Demolding Draft
Supporting Pillars
Why Choose Coler Supply for Plastic Injection Moulding
Place your confidence in our over 50 years of expertise in injection moulding technology, our adept manufacturing management team, and our methodical management system. Rely on our high-quality and efficient production capabilities. We excel in devising suitable manufacturing strategies that meet exacting product quality standards, optimising costs, and reducing lead times.