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发明授权
US5691282A Lubricant composition for use on workpieces in the hot forming of metals 失效
在金属热成型中用于工件的润滑剂组合物

Lubricant composition for use on workpieces in the hot forming of metals
摘要：
Lubricant composition for use on workpieces in the hot forming of metals, which contains: (a.sub.1) 0 to 80 percent by weight of a glass powder, (a.sub.2) 0 to 50 percent by weight of a glass frit whereby the content of at least one component (a.sub.1) or (a.sub.2) in the lubricant composition is not 0 percent by weight, (b) 10 to 25 percent by weight of natural or synthetic graphite, (c) 5 to 20 percent by weight of one or more alkali metal silicates of the general formula Me.sub.2 O.n SiO.sub.2, where Me is lithium, potassium or sodium and n is a number between 1 and 4, (d) 1 to 6 percent by weight of a water-soluble sodium polymetaphosphate, (e) 0 to 3 percent by weight of a water-insoluble sodium polymetaphosphate,(f) 0.5 to 4 percent by weight of a thickener, and (g) 0 to 1 percent by weight of borax.
摘要（中）：

用于热成型金属的工件上的润滑剂组合物，其含有：（a1）0〜80重量％的玻璃粉末，（a2）0〜50重量％的玻璃料，由此含有至少一种 润滑剂组合物中的组分（a1）或（a2）不为0重量％，（b）10-25重量％的天然或合成石墨，（c）5-20重量％的一种或多种碱金属硅酸盐 通式为Me2O.n SiO 2，其中Me为锂，钾或钠，n为1至4之间的数，（d）为1至6重量％的水溶性聚偏磷酸钠，（e）0至3 重量百分比的水不溶性聚偏磷酸钠，（f）0.5-4％（重量）增稠剂，和（g）0至1％重量的硼砂。

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