查询词典 roll-up

Keywords: Micro-dimensional behavior of mill; Roller bearing; Roll bend equivalent determinate roll system; Dynamic roll ross; Screw-down drive thread pair

中文关键词：机微尺度行为；滚动轴承；轧辊弯曲等效静定辊系；轧辊动态交叉；压下传动螺纹副

The factors affecting end curl of plate and sheet in rolling process were researched by the cross experiment, which include the upper roll diameter, the lower roll diameter, reduction, angle of entrance and velocity of roll rotation.

用正交实验方法对影响板带材轧制头部翘曲的因素进行了铅板轧制实验研究。影响因素有上下轧辊直径比、压下率、导入角和轧辊转速。

Full-automatic continuous selectivity electroplating line Ni + Au + Sn (bright/ fog/ SnPb (bright/ fog)+ SnCu; Roll a gold plating , roll the silver plating line , roll the copper facing , nickel , tin (bright/ fog), tin lead (bright/ fog) line; The bundle of silver plating , tin , tin lead line, are concerned about the nickel plating line waiting.

生产设备：Production facility：全自动连续选择性电镀线（Ni+Au+Sn/SnPb+SnCu）；滚镀金，滚镀银线，滚镀铜，镍，锡，锡铅线；挂镀银，锡，锡铅线，挂镀镍线等。

This approach is base on the following idea:under not effect to the deformation of rectangular pipe,to change right angle to obtuse angle which is variant as some regular,make plain-barreled roll pass receive vertical roll shape pipe blank,and then let pipe blank entering into vertical roll pass.With continuous deformation, the difference between diagonal line of rhombus pass will be reduced to zero,finally changed into a square.

该方法的基本思路是：在不影响方矩形管变形的前提下，通过将孔型顶角由直角改为按一定规律变化的钝角，让呈卧菱形状的平辊孔型接纳呈立菱形状的管坯，接着让卧菱形状的管坯进入立菱形状的立辊孔型，随着变形的继续，逐渐缩小菱形孔型对角线之差直至为零，成为正方形。

Through the development of the secondary piercer unit with forward angle change type three roll structure, the role of "Rolling Effect" principle in three roll cross rolling is advanced, based on which the design principle of roll shape and pass is put out.

通过对变送进角型三辊铝管二次穿孔机组的研制，提出"辗轧效应"原理，在三辊斜轧中得到应用，并以此推出辊形与孔型设计原则。

The results show that with the increase of strain rate, the grain sizes of thermal simulation AZ31B alloys with different deformation all decrease; however, when other conditions are the same, the higher deformation will lead to the formation of the smaller grain size, and as the cooling intensity decreases, typical cast structure of AZ31B will appear. With the decrease of roll casting temperature, the dendritic size of roll casting AZ31B alloy sheet prepared by the same strain rate is also reduced, but with the increase of strain rate, the dendritic size of the alloy sheet prepared by the same initial roll casting temperature is decreased, and the tendency of dendritic streamline is strengthened. During the roll casting process of AZ31B alloy, rolling force should not be large, otherwise it will cause heat cracking.

研究结果表明：在不同应变量下，热模拟样品的晶粒粒度均随应变速率的增加而减小，而当其他条件相同时，变形量越大晶粒粒度越小，冷却强度降低，合金呈典型铸态组织；利用铸轧技术生产的AZ31B合金，当应变速率一定时，随着初始铸轧温度的降低，铸轧态板材的树枝晶粒度逐渐减小；而在初始铸轧温度一定时，随着应变速率的增大，铸轧态合金板材的树枝晶粒度也逐渐减小；而随着应变速率的提高，树枝晶沿轧向呈流线状排列的趋势增强；在AZ31B合金铸轧过程中，轧制力不能太大，否则容易引起热裂。

CNC multi-functional grinder used for the grinding of R1,R2, work roll of rolling machine and F1~F7 work roll, pinch roll and forming roller, 1 CNC multi-functional grinder used for the grinding of F1~F7 work roll.

1台CNC型万能轧辊磨床，该磨床用于 R1、 R2、轧机工作辊/支承辊及 F1~F7支承辊、夹送辊及助卷辊的修磨、4台 CNC 型工作辊磨床，用于 F1~F7工作辊的修磨。

Roll wear is a factor difficult to determine and there is no suitable theoretical model till now In this paper,the theoretical model of roll wear is established from the view of tribology,and the roll wear on finishing train of 2050 CVC hot strip mill has been measured The calculated results agree well with the measured,so the model for roll wear is of important significance for shape control

轧辊磨损是当前生产中难以定量确定的因素，磨损预报至今尚无精确的理论模型可利用。本文从摩擦学原理出发建立了轧辊磨损的理论模型，并对宝钢 2 0 5 0 CVC热连轧机精轧机组的轧辊磨损量进行实际测量，计算结果与实测值吻合较好，对提高磨损预报精度、提高板形控制技术水平具有重要意义

Return mt_rand(1,$sides);} echo roll(6);// roll a six-sided dieecho roll(10);// roll a ten-sided die

然后可以把需要滚动的骰子类型作为参数传递给函数。

Numerical simulations and analytical results show: in longitudinal and oblique seas, ship may be subjected to primary parametric resonance with large roll amplitude and even capsizing, when encounter frequency is near the twice of roll natural frequency, wave length and ship length are of the same order and the wave height is larger than a certain value; in oblique seas, ship roll motion is a forcedly-parametrically excited oscillation, primary resonance occur as the encounter frequency is near the roll natural frequency, which may lead to large rolling and capsizing too.

数值仿真和解析分析结果表明：在纵浪和斜浪中，当遭遇频率接近船舶横摇固有频率的两倍，波长和船长接近，波高超过某一阈值的时候，船舶会发生主参数共振，产生大幅横摇甚至倾覆；在斜浪中，船舶发生的是参强激励横摇运动，遭遇频率接近横摇固有频率时，还会激起横摇主共振，同样会产生大幅横摇甚至倾覆。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。