metal deposits

For the further investigation on the desulfurization effect of the oxidation numbers of the vanadium and nickel deposits on FCC catalyst, TPR method was chosen to characterize the oxidation number of metal deposits quantitatively.

选用能对沉积钒和沉积镍的氧化数进行定量表征的程序升温还原(TPR)测试方法,考察了催化裂化催化剂上沉积金属氧化数对降低汽油硫含量的影响。

In the paper, the surface treating technologies are divided into three classes, and then the technologies such as NQN compound reinforcement, rare earth surface hardening, laser surface hardening, electro spark deposition of ceramet, chemical compound plating, etc.

文中将压铸模具的表面处理技术分为三个大类,并分别就NQN复合强化技术、稀土表面强化技术、激光表面强化技术、电火花沉积金属陶瓷技术、化学复合镀等新技术,进行了分析与讨论。