粗轧

At this moment,that the change of neutral plane position plays a main role in the course of interface bonding,the grain refinement degree heightens whenεincreases. When e is higher than 4.8,the copper with big grains is made up of two kinds of structure regions in the course of deforming,namely fine sub-grains region and high density dislocation region.

此时，异步叠轧中性面位置的改变对界面的复合起到主要作用，变形等效应变的增大使晶粒细化程度变大；变形等效应变ε≥4.8时，粗晶铜在变形过程中有两种组织区域组成，分别为细小亚晶区和高密度位错区。

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 points 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。

This is particularly the case in the roughing rolling stage.

在粗轧阶段尤其如此。

A high speed line material vertical rolling mill framework moderating machine gearbox of Hunan steel Co., Ltd, the gear teeth of the first transmission spiral bevel wheel were broken.

詹仁杭，轧立式轧机减速机螺旋伞齿轮断齿原因分析湘钢一高速线材粗中轧立式机架减速机齿轮箱，第一级传动螺旋伞齿轮轮齿断裂。

Pointing to the status of frequently changing roller, low operative ratio and low utilization of roller due to wide specification of ribbon steel, new box pass system for rough rolling was developed and the technique has been successfully used for production.

针对窄带钢品种规格多，换辊频繁，轧机作业率低，轧辊浪费等问题，研究开发了一种新型粗轧箱形孔配置方式，并成功运用于生产，其特点是在一套轧辊上设计几套孔型，可生产不同宽度的中间坯。

According to the characteristics of semi-endless rolling technology used in slab continuous casting and rolling line ,various measures of automatic width control in rough and finishing rolling were introduced and a new curve of short stroke control for rough rolling was particularly described.

针对薄板坯连铸连轧半无头轧制工艺的特点，简述了粗、精轧阶段的各种自动宽度控制和短行程控制的策略。

The distribution of thickness rolled and profile are simulated by considering roll system elastic deformation theory, distributions of tension stresses theory and roll thermal crown theory during rolling of wide strip and high speed aluminum foil roughing mill the rolling technology and thermochemistry parameters are tested, etc, the paper verifies above theories.

采用差分法模拟了具有分段冷却装置的宽幅高速铝箔粗轧机轧辊的温度场及热凸度分布。对轧辊热形为特性进行了全面的研究。首次考虑铝箔轧制的辊系弹性变形理论。张应力分布理论及轧辊热变形理论模拟了宽幅高速铝箔粗轧机的轧后断面形状及板形。

In order to roll round billets with accurate roughing shapes by a three-high roughing mill and stabilize production, a flexible pass design method was used to optimize the traditional conjugate pass through the distortion design of the bottom, side wall and pressure difference of the pass, realizing the application of the conjugate round pass on the three-roll mill.

为轧制料形尺寸准确的圆料、稳定生产，采用变通孔型设计方法对共轭孔型进行优化设计，通过对共轭孔型槽底、侧壁、压力差的变形设计，实现了共轭圆孔型在三辊粗轧机上的应用，轧槽咬钢顺利，成品圆料容易控制，完全满足后续工序的要求，同时减小了轧线的轧制事故，单套轧辊的轧制量可提高60%以上，取得了良好的经济效益。

The effect of rough rolling on mechanical properties and microstructures of H-beam (55C steel) for offshore oil drilling platform was studied.

在实验室研究了粗轧工艺参数对海洋石油平台用H型钢（55C钢）力学性能和显微组织的影响。

The model is used to analyze factors affecting the rolling force of multi-pass H-beam rough rolling process,and the experiential formula was con...

利用该模型对Q235材料H型钢多道次粗轧过程进行了四因素三位级的虚拟正交实验，研究影响其轧制负荷的主要因素，建立了经验公式。

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。