车辆喷漆前除油及酸洗处理；氧化钛、稀土元素的生产等。
In the production of oil and pickling process, Titanium oxide and rare earth elements of production, etc.
介绍了稀土元素的化学性质，在制备水处理絮凝剂方面的研究和应用情况。
The chemical properties of rare earth element are introduced, and the preparation of water treatment flocculants by using the rare earth is summarized.
并对稀土元素在化学热处理过程中的作用机理进行了探讨。
The article also investigated the action mechanism of rare earth elements in the process of chemical heat-treatments.
研究了不同热处理工艺、冷变形量与含有微量稀土元素和镁的新型低铍低镍铜合金性能的关系。
In this paper, the relation between the properties of the new Be-Ni-Cu alloy containing a small amount of re and Mg element and the different heat treatment process and cold work.
适当控制硅、锰含量、并加入稀土元素进行变质处理，可得到具有较高强韧性的耐磨锌合金。
If si and Mn element are added in suitable proportion, and re is added to inoculation, the wear-resisting zinc alloy with a go...
适当控制硅、锰含量、并加入稀土元素进行变质处理，可得到具有较高强韧性的耐磨锌合金。
If si and Mn element are added in suitable proportion, and re is added to inoculation, the wear-resisting zinc alloy with a go...
应用推荐