Cold forging

Performance of die manufacturers

1. Low density: The density of plastic is low, which is of great significance for reducing the weight of mechanical equipment and saving energy, especially for vehicles, ships, aircraft, and spacecraft.

2. High specific strength and stiffness: the strength of plastic is not as high as that of metal, but the density of plastic is small, so the specific strength（ σ b/ ρ)、 Specific stiffness (E/ ρ) Quite high. In particular, the specific strength and specific stiffness of reinforced plastics made of various high-strength fibrous, flaky and powdery metal or non-metal fillers are higher than those of metals.

3. Good chemical stability: Most plastics have good resistance to acid, alkali, salt, water and gas. Under normal conditions, they do not react with these substances.

4. Good electrical insulation, thermal insulation and sound insulation.

5. Good wear resistance and self-lubricating property: plastic has small friction coefficient, good wear resistance, good self-lubricating property, high specific strength and low transmission noise. It can work effectively under liquid medium, semi dry or even dry friction conditions. It can be made into machine parts such as bearings, gears, cams and pulleys, and is very suitable for occasions with low speed and low load.

6. Strong adhesion ability.