粗轧

The article describes the characteristics in structure of edger stand at rougher area of 2150mm hot continuous mill supplied for Anshan Steel and the merits and shortcomings on the design in comparison with similar edger stands home and abroad.

介绍鞍钢2150mm热连轧机机组粗轧区立辊轧机结构上的特点，同国内外同规格的立辊轧机进行比较，说明该轧机设计上的优缺点。

But at present in our country the rolling mill utilization ratio and the output compares with units energy consumption hour of the Middle-thicken Plate are very low. Especially in the stage of rough rolling, because of utilization rate of equipment is not enough the rolling cycle of each steel is too long, thus it result in lower producing and more energy consumption.

但目前国内中厚板轧机利用率，小时产量和单位能耗比都较低，尤其对于中厚板生产粗轧阶段由于设备利用率不够，每块钢的轧制周期时间太长，从而导致产能低，能源消耗大的情况。

Analyzed temperatures distribute during roughing roll and the effect of rolling parameter to draught pressure,analyzed the effect of rolling parameter to railhead and extension of heavy rail. At last,the research analyzed metal point's flow characteristic and revealed deforming regularity of heavy rail.

分析了在粗轧过程中温度场的分布以及轧制过程中轧制参数对轧制力的影响规律，分析了轧制参数对轨头、轨底宽展的影响规律，最后还分析了金属质点流动特性，揭示了重轨的变形规律。

Cooperating with academies chronically, the company offers users of hot rolled steel strip kinds of rollers like lots of alloy steel, alloy semi-steel, eccentric duplex of high nickel chrome molybdenum, hot strop roughing and support roll; offers lots of bainite eccentric duplex roll to high speed stick and wire rolling mill.

公司长期与科研单位合作，为热轧钢带连轧用户提供大批合金钢、合金半钢、高镍铬钼离心复合、热带粗轧及支承辊等各类轧辊，为高速棒、线材轧机提供大批贝氏体离心复合轧辊。

The investigation in surface lineal defect of rod are carried on by means of metallograph,grinding test as well as deformation test during roughing roll.

通过对试样进行金相分析，对铸坯表面修磨试验结果分析及对连铸坯在高线粗轧第1道和第2道轧制的受力和变形的分析，发现盘条表面的一种特殊的线状缺陷形成的原因是连铸坯存在边内裂和皮下气泡，粗轧机组(特别是第1和第2架)孔型设计不合理，也促进这种线状缺陷的形成。

H- section steel in the Section Steel Plant , rough rolled, directly enters the finishing mill train, causing some parts in the surface pressed in by reoxidation rolling scale, influencing the appearance of the steel.

型钢厂中型线的H型钢经粗轧后，直接进入精轧机组，造成表面部分二次氧化铁皮压入，影响了钢材的外观形象。

A rigid-plastic FEM program for the analysis of working piece deformation in single pass hot bar rolling was developed. Combining with the analytical model, the strain and strain rate of hot rolled bearing steel GCr15 bar during roughing and intermediate rolling processes was calculated and compared with the real values.

应用刚塑性有限元法开发了轧制过程单道次变形分析的通用程序，与解析法结合对实际热连轧生产GCr15棒材的粗轧和中轧过程中的应变－应变速率进行了计算值与实际应变的对比。

With the help of recommended abrasives and techniques, through the process of heating – roughly hot rolling – precisely hot rolling in a variety a machines, hot rolls can be shaped into high-precision aluminium belts, which shall better meet the growing needs of the PS baseboards for pots and the simifinished aluminium foil sheets, for there is a big market gap and high grade request for high-precision aluminium belts in the market.

三、建设规模：年产40万吨高精度铝板带热轧卷；工艺技术：采用国际先进的热轧生产技术，由铸锭经加热—热粗轧—多机架热精轧的生产工艺，配合引进的工艺技术磨具可满足制罐料 PS 板基、双零铝箔坯料等市场缺口大的高精度铝板带产品对热轧卷的质量要求；主要设备：包括铸锭铣床一台、推进式加热炉3台、2400mm1+4热连轧生产线一条、轧辊磨床2台（国外引进1台），预计引进设备需用外汇8000万美元。

It is suggested that this defect is originated from the internal crack and the subcutaneous bubble s of billet,as well as unreasonable pass design of roughing mill.

通过对试样进行金相分析，对铸坯表面修磨试验结果分析及对连铸坯在高线粗轧第1道和第2道轧制的受力和变形的分析，发现盘条表面的一种特殊的线状缺陷形成的原因是连铸坯存在边内裂和皮下气泡，粗轧机组(特别是第1和第2架)孔型设计不合理，也促进这种线状缺陷的形成。

Hot-rolled seamless tube rolling with the beginning of continuous casting slab or slabs as raw material, after reheating furnace heating, high-pressure water descaling entered the rough mill, roughing cut is expected by the head, tail, re-entering the finishing mill, the implementation of the computer controlled rolling, and finally after rolling through the laminar cooling and coiling machines Coiling, becoming straight hair volume.

热轧无缝管用连铸板坯或初轧板坯作原料，经步进式加热炉加热，高压水除鳞后进入粗轧机，粗轧料经切头、尾、再进入精轧机，实施计算机控制轧制，终轧后即经过层流冷却和卷取机卷取、成为直发卷。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。