Industrial plastic parts have replaced traditional metal parts in multiple fields due to their unique material characteristics. Has the following advantages:
1. Lightweight
Plastic has a much lower density than metals (such as PP density of 0.9g/cm ³ and aluminum density of 2.7g/cm ³), making it suitable for weight sensitive fields such as automobiles and aerospace, and can reduce energy consumption.
2. Corrosion resistance
High stability to acid, alkali, salt and other chemical media (such as PTFE can withstand concentrated sulfuric acid), suitable for corrosive environments such as chemical equipment and sewage treatment, with a lifespan 3-5 times longer than metals.
3. Insulation and safety
Volume resistivity greater than 10 ^16Ω· cm (such as PE) is an ideal material for high-voltage cables and electronic enclosures to avoid the risk of leakage.
4. Design flexibility
Injection molding can manufacture complex geometric shapes (such as thin-walled and irregular structures), reducing assembly processes. For example, nylon gears can be molded into tooth profiles in one go without the need for post-processing.
5. Cost effectiveness
Low raw material prices and low processing energy consumption (injection molding energy consumption is 30% of casting), suitable for large-scale production.
6. Shock absorption and noise reduction
Damping performance is better than that of metals, such as gearboxes made of POM, which produce 15-20 decibels lower noise than metals.
7. Wear resistance (specific material)
The wear resistance of UHMWPE is 8 times that of carbon steel, and its lifespan for conveyor rails can reach 10 years.
Typical application scenarios
Alternative metal case: The car intake manifold is replaced with PA66+GF30%, reducing weight by 40% and cost by 25%.
Harsh environment: The chemical pump valve lining is made of PVDF, which is resistant to corrosion and has a lifespan of up to 8 years.
Precision limitation: Metal is still preferred for high-precision gears (<0.01mm tolerance).
Material selection suggestions
High temperature and high pressure: PEEK>PPS>PA66
Wear resistance: UHMWPE>PTFE>Nylon
Cost priority: PP>HDPE>PVC
By selecting materials reasonably (such as modifying composite materials) and optimizing designs (such as strengthening reinforcement structures), the performance shortcomings of plastics can be significantly compensated for.
Please contact us directly,if you have any other different needs
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