抗疲劳POM Delrin 527UV BK701美国杜邦DUPONT

聚甲醛塑料，俗称赛钢，为结晶性热可塑性塑料，具明显熔点165~175℃，性质zui接近金属。 

优点  1、具高机械强度和刚性

2、zui高的疲劳强度

3、环境抵抗性、耐有机溶剂性佳

4、耐反覆冲击性强

5、广泛的使用温度范围(-40℃~120℃)

6、良好的电气性质

7、复原性良好

8、具自已润滑性、耐磨性良好

9、尺寸安定性优  

缺点  1、加工过程若长时间高温下易起热分解

2、无自熄性

3、抗酸性差

4、成形收缩率大  

用途  电子电器：洗衣机、果汁机零件、定时器组件

汽         车： 车把零件、电动窗零件

工业零件：机械零件、齿轮、把手、玩具、螺杆

‘still too early for you, eh? it’ll be fifteen years ago this yearfor me. i figure chieko will be just
about ready to forgive me by now.’
‘has it really been that long? goes , doesn’t it. feels likejust the other the day that she
was inviting52 mearound for dinner.’
‘she had her foibles, but one thing’s for sure – no one could cooklike her,’ said hideji with a
sigh. there was a moment’s silence.
‘well, shall we?’ said nagare, getting to his feet. hideji followedhis lead.