带钢

By mechanical test of the steel strip and simulation of strip deformation in tension leveling using finite element method,characteristic features of the strip were obtained,such as;high yield stress,high yield ratio and low plastic elongation as the basic reason of difficulty in tension leveling and shape control.

通过对全硬钢的力学性能的测定和拉矫变形行为的有限元仿真，发现屈服应力大、屈强比高以及断裂时塑性延伸小等特性是造成镀锌后全硬带钢拉矫困难和板形难以控制的根本原因。

This phenomenon results in the generation of self-excited vibration of down coiler main drive system.

生产X70(14.7mm×1535mm)管线钢时，因带钢进入地下卷取机瞬间与卷筒发生打滑飞车现象，而导致地下卷取机主传动系统发生强烈的自激振动。

Iron and Steel Group, the rule of the steel plate, the main business at home and abroad of the major hot-rolled steel (including hot-rolled Coil, flat, plate, strip), cold-rolled (pickling, rolling hard volumes, Pu cold ), Profiles, Tudu, stainless steel and electrical steel products, orders directly from steel mills, quite adequate resources.

华冶钢铁集团涉及的钢铁贸易板块，主要经营国内外各大钢厂的热轧（含热轧卷板、平板、中厚板、带钢）、冷轧、型材、涂镀、不锈钢及电工钢等产品，直接从钢厂订货，资源相当充足。

Company produces a variety of series, a variety of steel, light steel keel.

公司生产各种系列、各种规格的带钢、轻钢龙骨。

The flatness quality problems such as sidewise bending and warping usually appear in hot rolled sheet product. Residual stress distribution of hot rolled steel sheet before and after straightening was obtained by modified hole–drilling technique, in order to improving the quality of hot rolled steel sheet product.

本文针对热轧钢板产品常出现的旁弯、翘曲等板形质量问题，通过盲孔法测量钢办矫直前以及粗矫、精矫后的残余应力分布来分析矫直工艺对带钢残余应力分布的影响，以便改善热轧钢板产品的质量。

As the product quality and, through self-built strong distribution network and effective occupation of the Yunnan, Guizhou, Sichuan, Chongqing and Guangxi region of cold-rolled strip, pipe and tubes, cold-formed steel products, the largest market share.

由于产品质量过硬，并通过自建强大的销售网络有效的占领了云、贵、川、渝及广西地区冷轧带钢、管材、冷弯钢制品的最大市场份额。

Steel billets are adopted edition of tran scription or strip steel, steel because of its riveting process does not fall into the stove with the pipe, electric arc welding arc-welded pipe and take the initiative; pipe material and its usefulness is not the same but is divided into: galvanized steel riveting , there is no rust steel riveted steel pipe.

钢管采纳的坯料是誊写钢版或者带钢，钢管因其铆接工艺没有同而分成炉焊管，电弧焊接管和主动电弧焊管；焊管因其材料和用处没有同而分成：镀锌铆接钢管，没有锈钢铆接钢管。

In this work the unhomogeneity of microstructure in product strips has been studied, and the methods to control grain size with the hot rolling technological parameters are given. The capacity to control the property unhomogeneity of hot strips has been greatly improved after using the methods. According the statistics of production, the the property unhomogeneity over 99% strips is less than 80 MPa in a batch of coils, and less than 40MPa in a coil.

8对大量实际生产带钢组织和性能的不均匀性进行了研究，提出了通过调整热轧工艺参数来进行晶粒尺寸均匀度控制的的具体措施，实际生产采取该控制手段后，使宝钢对管线钢性能波动的控制水平得到大幅度的提高；强度波动由管线钢生产初期的批量内150～200MPa，卷内100MPa提高到批量内00MPa，卷内0MPa，可按合同交货；大生产实际水平为：99％产品的强度波动量达到批量内0MPa，卷内0MPa。

The 21 beams are incident on the surface of hot strip steel at an angle.

热轧带钢平直度的在线检测是现代热带钢连轧机控制领域最重要的检测项目之一。

The "three-electricity" reconstruction project of R2 mill, coil box, crop shear in medium width hot strip product line in Lingyuan Iron and Steel Group takes the high-capability industrial control computer, PLC and full-digital drive control system as the core.

凌钢中宽热轧带钢生产线R2轧机、热卷箱、飞剪部分&三电&改造工程以高性能工控机、PLC及全数字传动控制系统为核心，传动系统与PLC之间通过Profibus进行通讯，从而改变了原系统装置水平低下，技术落后的状况；并且通过对软件系统即控制模型的优化和改进，弥补了原系统存在的缺陷，提高了系统整体工艺控制水平。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。