某轧钢厂正常轧制的钢材表面存在裂纹缺陷。
大约90%的钢材都是轧制出来的。
About 90% of the steel products are manufactured by rolling.
钢材产品实行负偏差轧制是企业提高经济效益的有效措施。
The minus tolerance rolling of steel products is an effective measure for increasing enterprises profit.
金相试验表明，适当降低轧制温度有利于晶粒的细化，从而改善钢材的力学性能。
Metallographic experiment indicate that reducing the rolling temperature properly is propitious to thin crystal, consequently the mechanical performance of steel products is also improved.
钢材的化学成分和轧制时的工艺参数影响着高速线材的力学性能。
The steel's chemical composition and the process parameters influence the mechanical properties of high speed wire.
这些功能反映了长型材轧制技术和钢材一体化生产的发展趋势。
These functions are reflected in the development of long product rolling technique and integrative production of iron and steel.
介绍了板、带材压下规程及型材的孔型优化设计问题，并指出了设计特点与方法，给出了优化后的效果。为钢材及其它有色金属轧制规程的设计提供了设计方法。
The optimization design for pass of shape steel and draughting regulations for plate and strip is introduced, design features and methods offered, the effect of optimization also given.
所采用的计算方法和分析原理，也可应用于研究同类型的轧钢车间，用于轧制不同钢种、不同规格钢材的轧机生产能力的分析与计算。
The method and theory of analysis can be applied to analogous rolling workshops with different grads and different specifications of rolling products.
在钢材产量大于市场需求的条件下 ，高精度轧制显得更加重要。
The high quality heavy rail must be produced by high precision rolling technology.
在钢材产量大于市场需求的条件下 ，高精度轧制显得更加重要。
The high quality heavy rail must be produced by high precision rolling technology.
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