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
‘Would that be so bad?’
‘Of course it would. It’s a total no-no! Trying to get her torecreate a flavour bound up with
memories of your previous wife . . . I mean, really!’
‘You jump to conclusions just like Nagare too! I wouldn’t have thenerve to try something like
that. No, all I did was ask if she could try cooking us a nicenabeyaki-udon. Anyway, she’s not my
wife yet. She works in my office, and she’s been married oncealready, just like me. The two of us
get along like a house on fire. She comes over to my place fromtime to time, cooks us a bite to
eat.’