查询词典 ring rolling

This contributes to the rigidity of the bearing and a precise radial guidance of the shaft. For special applications, full-complement cylindrical roller bearings are employed. The cylindrical roller bearing designs are shown in Figures 1.20 and 1.21.The designs of cylindrical roller bearings are distinguished by the arrangement of the lips. Design NU (Figure 1.21b) has two lips on the outer ring, the inner ring being lipless. In design N (Figure 1.21a), the inner ring has two lips, the outer ring has none. Cylindrical roller bearings of designs NU and N are applied as floating bearings because the rollers can freely shift on the lipless ring in the axial direction. Cylindrical roller bearings NJ (Figure 1.20) have two lips on the outer ring and one on the inner ring; they can take up axial forces in one direction. Design NUP (Figure 1.21d) is installed as a locating bearing to sustain frequently reversing axial forces.

这可以提高轴承的刚度，和主轴精密的径向引导，对于特别的运用，密排的圆柱滚子轴承被运用，圆柱轴承的图样在图。20和1.21展示圆柱滚子轴承图样由挡边的不知来区分，图样NU(图1.21b)在外圈有两个挡边，内圈无挡边，在图样N中内圈有两个挡边，外圈无挡边，图样NU和U所示的圆柱滚子轴承可制作浮动轴承因为滚子能够在轴向无挡边环上自由的移动，圆柱滚子轴承NG在外圈上有两个挡边，内圈上有一个，它们能够在某个方向上承受轴向力，图样NUP（图1.21d）被用来安装在一个保持经常扭转轴向力的固定轴承上。

In rolling mill in development course of more than 30 years, built tropics of φ 750mm blooming mill, 500mm early or late rolling mill, medium or small intertropical rolling mill of rolling mill of profiled bar of great ability rolling mill, medium-sized H, 1500mm. Lai steel orgnaization was adjusted in March 2006 established plank to produce professional plant -- board tape plant.

在轧钢厂三十余年的发展历程中，先后建设了φ750mm初轧机、500mm热带轧机、中小型棒材轧机、中型H型钢轧机、1500mm热带轧机。2006年3月莱钢机构调整组建了板材生产专业厂——板带厂。

Due to the characteristic of high tension during cold rolling and the transverse flow in cold rolling different from hot rolling, the Shohet criterion, which is universally used in hot rolling, is not applicable to cold rolling.

由于冷轧过程的大张力轧制特点以及金属横向流动性与热轧有很大区别，因此在热轧中广泛应用的Shohet判别式不能很好应用于冷轧。

Feed the gross pipe from front plant, cog down the upper roller to given size to rotating bring the pipe into rolling zone for reducing diameter and wall form rolling; after rolling from head to tail, turn 90Deg with the gross pipe, top bar and core head by tilter for next rolling travel that inverse roll to head to bring the pipe back to front plant; then, turn again for next periodical to-an-fro rolling till design size request.

将毛管自轧机前台喂入，将上轧辊压下至设定的尺寸，毛管在轧辊的旋转带动下曳入轧制区域，进行减径和减壁变形轧制；毛管从头部轧制到尾部后，将毛管、顶杆及芯头在翻转装置的作用下翻转90°，进行下一个轧制行程，反向轧制到头部，毛管回到轧机前台；再将毛管、顶杆及芯头在翻转装置的作用下翻转90°，进行下一个轧制周期往复轧制，轧制到毛管成达到设计尺寸要求。

Comprehensive range analysis on all the used factors and their levels showed that the best technological conditions to make nickel electrode with best performance is specified as stoving temperature 50 ℃, rolling thickness 0.6～0.7 cm and rolling-mode rolling, and the relative influence degree of the technology factors is rolling mode＞stoving temperature＞rolling thickness.

用极差法对文中所用的所有因素水平的综合分析表明，制作性能优良的镍电极的最佳工艺条件为烘干温度50 ℃、厚度0.6～0.7 cm、轧压，各工艺因素对镍电极性能影响的显著性顺序为轧压方式＞烘干温度＞轧制厚度。

Seamless steel pipe unit: The steel pipe straightening machine, the puncher, the company roll over the unit, the company tube rolling train, two roller cold tube rolling trains, the cold-drawing machine, three roller tube unit, five roller cold tube rolling trains, the cyclical tube rolling train, the automatic tube rolling train, the top pipe unit, the steel pipe extrusion unit, the tensity reduce processing process units and so on the diameter machine and so on each kind of steel pipe finishing equipment and so on...

无缝钢管机组：钢管矫直机、穿孔机、连轧机组、连轧管机组、两辊冷轧管机组、冷拔机、三辊管机组、五辊冷轧管机组、周期轧管机组、自动轧管机组、顶管机组、钢管挤压机组、张力减径机等加工工艺设备等各类钢管精整设备等。。

Common rolling plank is shown intense (orientaton of 0002) tool reference plane, after rolling of horn waiting for diameter, plank grain orientaton by original (change of orientaton of 0002) tool reference plane is; of orientaton of blame tool reference plane the existence after strain crack of common rolling plank is many twin brilliant, amount of brilliant of twin of drawing of direction of rolling of edge of plank of rolling of horn w

普通轧制板材呈强烈的(0002)基面取向，等径角轧制后，板材晶粒取向由原来的(0002)基面取向转变为非基面取向；普通轧制板材拉伸断裂后存在大量孪晶，等径角轧制板材沿轧制方向拉伸孪晶数量明显减少，等径角轧制有可能启动了新的滑移系，而拉伸孪生只是作为一种协调变形机制。

In the coming 2～3 years, there are four aspects for improvement in thin slab casting and rolling in China:(1) production of high quality products and further processed products by whole line of thin slab casting－rolling, cold rolling and coating;(2) reaching a higher productivity level with advantages of thin gauge hot rolled products;(3) leading the technology innovation in the field of mold modification, dynamic soft reduction, ferrite rolling and semi－endless rolling etc.

未来两年中，中国薄板坯连铸连轧技术创新的重点应有四个方面，即：全面贯通薄板坯连铸－热连轧－冷连轧－涂镀层产品作业线，生产高质量产品与深加工产品；在发挥薄规格热轧产品优势的基础上再创高效率生产新水平；努力在优化薄板坯连铸结晶器、动态轻压下、铁素体轧制、半无头轧制等工艺开发方面走在前列；工艺技术、装备、相关材料基本自主开发。

The experiment and the research indicate that:(1) Through the Hot-Continuous-Rolling production technics under small reduction ratio of 4.04 and 5.08, the rectangular continuous-casting billet of 235×265mm can be used to produce big size steel stick of Φ140mm and Φ 125mm whose macrostructure and mechanical properties meet the standards, this technics is viable;(2) This rolling technics can make the deformation penetrate to the center of the billet by low temperture and low velocity and big roller diameter and large reduction quantity at every pass and optimum design and arrangement of rollers, which is the key of Hot-Continuous-Rolling technics under small reduction ratio;(3) The sending technics used in Xining Special Steel Co.,Ltd can not use waste-heat of billet adequately, but the sensitive temperature section of A1N or sulphides or inclusions separating out is avoided, creating a favorablecondition for insuring good surface quality of final rolled steel;(4) The Hot-Continuous-Rolling technics under small reduction ratio has a close relationship with the billet quality control and the hot sending process control and the cooling control after rolling.

通过实验研究表明：(1) 235×265mm矩形连铸坯分别采用4.04和5.08的小压缩比热连轧生产工艺，所生产的Φ140mm和Φ125mm的大规格棒材，其低倍组织和机械性能均符合标准要求，该工艺是可行的；(2)本实验所采取的低温低速、大辊径大道次压下量轧制工艺加上轧辊孔型的优化设计与配置，可以使加工变形渗透到铸坯的中心，这一点是实现小压缩比热连轧生产工艺的关键；(3)西宁特钢在红送过程中虽然铸坯余热未能得到充分的利用，但是有效地避开了A1N、硫化物的析出及夹杂物偏析的敏感温度区，为保证最终轧材良好的表面质量创造了有利的条件；(4)小压缩比热连轧生产与铸坯质量控制，热送过程控制以及轧后冷却控制密不可分。

Aiming at solving the difficulties of prototype manufacturing of conical ring for the steam generator shell of 600MW Nuclear Reactor,this paper developed a new techniques for the prototype manu-facturing of the great conical ring utilizing ring rolling technology based on RAW200/160-5 ring rolling.

1引言600MW蒸汽发生器壳体是核电站的关键设备，由封头、锥形环件和筒体组焊而成。以往制造这种锥形环件所采用的办法是，先锻制环形筒件再采用机械加工方法成形或者采用自由锻造方法直接在水压机上锻制出大型锥形环件，但这些工艺既费工时又大量浪费材料，而且产品精度不高[1]。

The production moved off-Broadway to New York City, where she won the Joseph E. Calloway award for her performance, and was profiled in American Theater Magazine as one of ten young theater artists to watch.

生产提出过百老汇的新的纽约市，在那里她赢得了约瑟夫calloway奖，她的表现，并于异型在美国的战区杂志之一， 10战区的青年艺术家观赏。

It's a risk tradeoff, and I believe that adding test support code usually wins.

这是一个风险的权衡，我相信添加测试代码通常会占上风。