压铅

随着东风4D型等新机车的出现，柴油机结构尺寸发生了变化，原先安装气缸盖时所用的压缩间隙测量法压铅法已不适用。

With the advent of DF 4D and other new types of locomotives , geometric dimensions of diesel engines have changed , and the original method of compression clearance measurement used during installation of cylinder heads , i.e. method of compressing lead bars , has no longer been applicable .

压铅机压杆补焊之研究

Study on Welding of Pressure Bar of Lead briquetting Machine

经过反复实践和摸索，总结出了一套操作简便、省时省力的压铅值测量方法。

By repeated practices , a series of simple measuring methods for pressure lead value are summed up .

从德国进口的压铅机压杆在使用中表面严重划伤。

The pressure bar of a lead briquetting machine , imported from German , was seriously scratched during its service .

温压法制备铜铅轴承合金的研究

Study on the Warm Compaction in Manufacturing Cu-Pb Bearing Alloy