DURACON POM CS-20 日本宝理

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

'Oh Father! Timmy's hurt!' said George. 'He went...'
Her father looked down at Timmy, standing1 meekly2 behindGeorge. He gave a little snort.
'Hurt! He seems all right to me. I suppose he's got a thorn in hispaw again - and you think it's the endof the world or something,and come yelling in here and...'
'Timmy is hurt!' said George, with tears in her voice.'Look!'