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℃,性质最接近金属。
优点 1、具高机械强度和刚性
2、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
本公司长期供应塑胶原料,种类多样化,标准化,技术化,价格合理。发货准,交期准.质量有保障!本公司郑重承诺:诚信经营,质量至上,可為客户提供(物性、报价、UL报告、RoSH标准、SGS检测报告等)敬请来电咨询洽谈!详情请致电:严生(业务经理)。手机;
详细说明:He placed it in the rack with great care, among the elegant bags enveloped with gray cloth, beside which it looked conspicuously sordid. It was studded with yellow flowers on a blood-colored background.
He was soon perfectly at ease, and complimented Madame Martin on the elegance of her travelling attire.
“Excuse me, ladies,” he added, “I was afraid I should be late. I went to six o’clock mass at Saint Severin, my parish, in the Virgin Chapel, under those pretty, but absurd columns that point toward heaven though frail as reeds-like us, poor sinners that we are.”