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模具使用性能
[来源:http://www.morfonet.com/] [作者:aowl] [日期:19-06-06] [浏览次数:]

模具使用性能
Performance of Die
1.密度小:塑料密度小,对于减轻机械设备重量和节能具有重要的意义,尤其是对车辆、船舶、飞机、宇宙航天器而言。
1. Low density: Plastic density is small, which is of great significance for reducing the weight of mechanical equipment and energy saving, especially for vehicles, ships, aircraft and spacecraft.
2.比强度和比刚度高:塑料的绝对强度不如金属高,但塑料密度小,所以比强度(σb/ρ)、比刚度(E/ρ)相当高。尤其是以各种高强度的纤维状、片状和粉末状的金属或非金属为填料制成的增强塑料,其比强度和比刚度比金属还高。
2. High specific strength and stiffness: The absolute strength of plastics is not as high as that of metals, but the density of plastics is small, so the specific strength (_b/p) and specific stiffness (E/p) are quite high. Especially reinforced plastics filled with various kinds of high strength fibers, flakes and powders of metal or non-metal have higher specific strength and stiffness than metals.
3.化学稳定性好:绝大多数的塑料都有良好的耐酸、碱、盐、水和气体的性能,在一般的条件下,它们不与这些物质发生化学反应。
3. Good chemical stability: Most plastics have good acid, alkali, salt, water and gas resistance. Under normal conditions, they do not react with these substances.
4.电绝缘、绝热、绝声性能好。
4. Electrical insulation, thermal insulation, sound insulation performance is good.
5.耐磨和自润滑性好:塑料的摩擦系数小、耐磨性好、有很好的自润滑性,加上比强度高,传动噪声小,它可以在液体介质、半干甚至干摩擦条件下有效地工作。它可以制成轴承、齿轮、凸轮和滑轮等机器零件,非常适用于转速不高、载荷不大的场合。
5. Good wear resistance and self-lubrication: Plastics have small friction coefficient, good wear resistance, good self-lubrication, high specific strength and low transmission noise. It can work effectively in liquid medium, semi-dry or even dry friction conditions. It can be made into machine parts such as bearings, gears, cams and pulleys. It is very suitable for low speed and low load occasions.
6.粘结能力强。
6. Strong bonding ability.
7.成型和着色性能好。
7. Good shaping and colouring properties.

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