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
Stewed arame and deep-fried tofu. Okara croquettes. Kikuna leavesdressed with sesame and
miso. Kurama-style sardine18.Hirosu tofu ball in broth19.Pork belly20 simmeredin Kyobancha tea.
Fresh tofu curd22 withsour plum paste. Oh, and Koishi’s rice-bran-pickled cucumbers.Nothing too
extravagant23.If anything, the highlights are probably the firmly cooked Goshurice and the miso
soup with ebi-imo taro24.Anyway, enjoy the meal. Oh, and make sure you put a good sprinkleof
sansho pepper on the soup – it’ll warm you right up.’