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.
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详细说明：I reached the riverside just about dusk, but to my disappointment and rapidly rising anger I could see nothing of Nell. There were plenty of other howling brutes there, but not the one I wanted. Where was Boulter’s beastly dog I asked myself irritably. She could always have been found here, night after night, when no one wanted her, and yet tonight, the very night she was wanted, something had kept her away. Perhaps Boulter himself had locked her up after last night’s affair. Anyhow, I would get at her somehow.
