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1·The paper describes the forging properties of white cast iron and the effect of forging ratio on the structure and properties of white cast iron.

叙述了白口铸铁锻造工艺特点，以及锻造比对白口铸铁组织和力学性能的影响。

2·It could be concluded that following the forging ratio increasing, the grains refined gradually and the mechanical properties of forgings increased.

随着锻造比的增大，晶粒组织逐渐细化，锻件力学性能提高。

3·The annealing process was made under different temperature and holding time to the cold forging AZ31 magnesium alloy with different deformation ratio.

对不同变形量的冷锻az31镁合金在不同温度和保温时间下进行退火。

4·Increasing the utilization ratio of the steel ingot is an important way to reduce the forging cost.

提高钢锭的利用率是降低锻件成本的重要途径之一。

5·The results show that it is feasible to apply the method of laminated pouring and accumulated liquid forging into forming components with large ratio of altitude and diameter.

研究结果表明：采用分层浇注-累积液锻成形大高径比制件的方法是完全可行的；

6·Only when the blank width ratio is confined, can no crosswise tension stress forging be realized, regardless of flat platen stretching or the new FM forging method.

无论是平砧拔长还是新fm锻造法，都要对料宽比加以控制，才能实现横向无拉应力锻造。

7·When the cumulative reduction ratio reaches 30%, about 67% of the inner region of the axial forging is modified fully.

当压下率达到约30%时，随材料心部有67%的区域充分改性；