铸造生产的两大污染源，一是使用含有有毒物质的树脂黏结剂，二是排放的废砂成为大量固体废物。
In foundry production, two great pollution sources are use of resin binders containing toxic matters and large amount of solid garbage resulting from waste sands.
用新型绿色溶剂取代传统的二甲苯等有毒溶剂，并对环氧丙烯酸树脂的合成工艺进行改进。
Such traditional poisonous solutions are replaced with dimethylbenzene to improve the synthesis technology of epoxy acrylic resin.
缠绕线圈的玻璃纤维等绝缘材料具有自熄特性，不会因短路产生电弧，高热下树脂不会产生有毒有害气体。
Wound coil of glass fiber insulation material with self-extinguishing properties, will not short circuit arcing, heat of the resin will produce toxic or harmful gases.
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