轧制

The main problem in production of can bodies in our country is that the backward mill processing technology, the other is the lower purity and unadapted microstructure.

我国目前制罐铝材生产中存在的主要问题一是轧制加工工艺落后，二是材质的纯洁度低、内部组织差。

According to the 1999 survey is not complete, the current national production of fake and shoddy construction steel production enterprises amounted to one thousand, throughout 21 provinces, autonomous regions, the annual production capacity of 5 million tons, of which the vast majority of production "of steel in" and use "of the steel to" unburnt earthenware rolled Luowengang, W-renewable steel.

据1999年的不完全调查，目前全国生产假冒伪劣建筑钢材的生产企业达一千余家，遍及21个省、自治区，年生产能力达500万吨以上，其中，绝大多数是生产"地条钢"和用"地条钢"坯轧制螺纹钢、W形再生钢。

Reportedly, in recent years, regional manufacturing and selling counterfeit and shoddy steel repeated offences, particularly regional production "of steel in" and use "of the steel to" unburnt earthenware Luowengang rolled steel and other construction issues very prominent.

据了解，近年来，区域性制售假冒伪劣钢材的违法行为屡禁不止，尤其是区域性生产"地条钢"和用"地条钢"坯轧制螺纹钢等建筑钢材的问题十分突出。

Featuring exclusive house rules and extra cards, not to mention unlockable cards to keep the excitement rolling in the deal making fun.

采用独家内部规则和额外卡，更不用说释放卡保持兴奋轧制中的交易决策乐趣。

The simulated result was compared with the real process data, which shows that the method used herein to simulate the unsteady rolling state is practicable and reliable.

将仿真结果与实际生产数据进行比较，结果表明采用该方法对非稳态轧制过程进行仿真是可行并且可靠的。

In producing technics aspect, the main effect factors to size are walking beam furnace and universal rolling.

在生产工艺上，对尺寸影响最大的是步进式加热炉、万能轧制。

To meet requirement of production and quicken rolling speed, No.2 heating furnace was put into operation in 2002 and No.3 in 2007. All automatic control was adopted, displacement of walking beam was detected by displacement transducer, and acceleration and deceleration control of walking beam was carried out through proportional valve and by use of slope technique in program of GE 90-70 PLC, thus, travelling speed of walking beam can be controlled and lift and release of slab can be operated lightly.

为适应生产的需要，加快轧制速度，2002年投产的2号加热炉和2007年投产的3号加热炉均采用全自动控制，利用位移传感器检测步进梁的位移量，通过比例阀以及在GE90-70PLC程序中采用斜坡技术对步进梁运动进行加减速控制，达到控制步进梁运行速度的目的，实现对板坯的轻拿轻放。

In order to improve the quality of 1780mm hot rolling product, the thesismainly research on the pre-setting accuracy of the rolling parameter, which is abasic technical measure. In this thesis, it has comprehensively been analyzing theworking theory, control method, modeling methodologies to establish themathematics model of the finishing mill and has made some improvements to themodeling and the model realization method of string roller organization controlsystem.

本文为了提高1780mm热轧带钢产品的精度，主要从提高精轧机组轧制参数的预设定精度着手，通过对精轧机组工作原理、控制方法、系统常用建模方法等各方面的深入了解，建立了精轧机组的数学模型。

In order to find a technique that can obviously improve the strength of magnesium-lithium alloy ,an alpha-beta biphase coexistent magnesium-lithium alloy was designed according to the Mg-Li phase diagram and the effect of Al.

为了找到一种可以显著提高镁锂合金强度的工艺，根据镁-锂二元合金相图及铝元素在合金中的作用，设计了一种α、β两相共存的镁锂合金(Mg-6Li-3Al)，并进行了挤压和轧制；用光学显微镜和X射线衍射仪对合金不同状态的组织及性能进行了研究。

This paper introduces the main equipments of this system, such as pinch roll, billet descaling, billet welding; burring; movable roller bed; billet insulation and welder hydraulic station, etc.

介绍了无头轧制系统的夹送辊、钠坯除鳞、钢坯焊接、毛刺清理、活动辊道、钢坯保温、焊机液压站等主要装置。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。