Effect of microelement on the microstructure and wear resistance property of special brass have been investigated by SEM, abrasion machine etc.
利用电子探针、磨损试验机等试验手段，研究了微量元素对特殊黄铜的组织和耐磨性能的影响。
2
Aimed at the rebuilding require of the electric control system of the special purpose of milling machine, the application of PLC was introduced, this control system acquires good effect.
根据某厂对专用铣床的电气控制系统所提出的改造要求，采用可编程控制器进行控制，取得了很好的效果。
3
This equipment has rolled plate leveling basic function, also equipped with special feeding frame and feeding machine, which ensures the smooth feeding evenness, make plate leveling effect is better.