成型特性
1.结晶料,吸湿性小,易发生融体破裂,长期与热金属接触易分解.
2.流动性好,但收缩范围及收缩值大,易发生缩孔.凹痕,变形.
3.冷却速度快,浇注系统及冷却系统应缓慢散热,并注意控制成型温度.料温低温高压时容易取向,模具温度低于50度时,塑件不光滑,易产生熔接不良,流痕,90度以上易发生翘曲变形
4.塑料壁厚须均匀,避免缺胶,尖角,以防应力集中.
专业供应加纤PP、防火PP、抗静电PP、抗紫外线PP、抗冲击PP、食品级PP、耐热级PP、耐候级PP、高流动PP、以及吹塑级PP、挤出级PP、透明级PP等。
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详细说明：I stood over him waiting, but he was quite still. I looked up and down the path. Not a soul was near us, but I grew all at once afraid. I literally shook with fear.
What if I were seen It would be a hanging for me if the man were dead. At any moment someone might come by along the path, and I should be a lost man. I thrust the iron back into my pocket, and, seizing the limp body by the collar, dragged it heavily across the turf, away from the path. It was a heavy load to pull, and less than fifty yards left me breathless and exhausted. I took a moment’s rest, and then, spurred on by fear, dragged the body along again towards a little clump of trees.
