根据SSPC SP1的规定，在喷砂处理之前，应当用溶剂将附着在钢材及相邻聚乙烯材料表面的油脂及其他污染物清洗掉。
Oil, grease and other contaminants shall be removed from the steel and adjacent polyethylene surfaces by solvent cleaning in accordance with SSPC SP1 prior to abrasive blast cleaning.
其他塑料可以二次通过再热的方式恢复到可塑性状态，这些是热塑性塑料，如丙烯酸树脂，尼龙和聚乙烯。
Other plastics can be repeatedly reheated to return to the plastic state; they are thermoplastics. Examples of thermoplastic plastics are acrylics, nylon, and polyethylene.
分析了低密度聚乙烯装置多次发生非计划停工的原因，发现导致装置发生停工较多的因素依次为设备、电气仪表、其他非车间原因以及工艺操作等。
The factors lead to shutdown are equipments, electric meters, other non-workshop reasons and process operation in turn via analysis many unexpected shutdown of low-density polyethylene unit.
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