查询词典 barrel roll

Strip limit minimum rollable gauge and minimum rollable gauge considering productivity are analyzed and derived using new rolling pressure model, work roll surface temperature rise formulae is derived on the basis of mill stand thermal balance. The affecting factors of work roll surface temperature and the influences on the choice of roll size are discussed.

本文从轧机结构设计、力能参数计算、强度设计计算等方面综合论述了辊系参数设计计算的基本理论，在理论上提出了采用考虑粘着摩擦的混合摩擦模型和考虑轧件的弹性变形计算冷轧薄板轧制压力的方法，推导并以冷轧机实测轧制压力验证了轧制压力新模型；应用新的轧制压力模型分析并推导了轧件极限最小可轧厚度和考虑生产率的最小可轧厚度公式；根据工作机座热量平衡原理推导了工作辊温升公式，分析了工作辊温度的影响因素，研究了工作辊温升对轧辊参数选择的影响。

Introduced to settle the function that path machine settle path Roll box,The analysis settles the reason of the path Roll an inside bearings damage,Put forward the method of the concrete improvement of the extension bearings service life,And take in to put into practice,Actual usage proof,Bearings service life extension,Settle the path Roll an usage effective.

介绍了定径机定径辊箱的作用，分析定径辊箱内轴承损坏的原因，提出了延长轴承使用寿命的具体改进的方法，并加以实施，实际使用证明，轴承使用寿命延长，定径辊箱使用效果很好。

The application results show that work roll and backup roll designed with this method have good adaptability, and the plate crown and roll consumption have been reduced greatly.

经现场实践应用表明，采用该方法设计出的工作辊、支持辊辊型曲线适应性好，并大大地改善了板凸度和轧辊磨损情况。

The thesis is studying roll control of autopilots. In this thesis the model of roll is designed and the digital of the roll is studied.

论文主要是针对自动驾驶仪中的滚转回路进行了研究：建立了滚转回路系统模型，完成了滚转控制通道数字化设计。

A typical unit of flexo printing machine, there are three tension areas, from an open-reel to feed tension roll tension between an open-book; from feed tension roll to roll the tension between business card printing and membership card making tension areas; from the tension between the roller to complex scroll is a multiple tension areas.

榜样的机组式柔印机有3个不不不张力区，从不闭卷轴到进料不不不张力辊之间为不闭卷不不不张力区；从进料不不不张力辊到不入料不不不张力辊之间为制卡和会员卡制息不不不张力区；从不入料不不不张力辊到双卷轴之间为双卷不不不张力区。

Combined hourglass control in analysis of cold ring rolling process;2. Recent status and development of real-time measurement and online control technology in cold ring rolling ;3. The influence law of feed rate of idle roll on the quality of end face of ring,axial width spread ratio,roll force,roll moment and metal flow characteristic in cold ring rolling process has been explored through the FEM numerical simulation of the ring with rectangular cross-section based on the elastic-plastic dynamic explicit FEM under the Abaqus software environment.

基于Abaqus/Explicit提供的显式动力学有限元算法，对矩形截面环件冷辗扩进行了有限元数值模拟，揭示了芯辊进给速度对环件冷辗扩过程中环件端面质量、轴向宽展率、辗扩力、辗扩力矩以及金属流动特性的影响规律，并从金属塑性成形原理和塑性加工力学等角度对这些规律进行了合理的解释，从而获得了进给速度对冷辗扩成形的影响规律，为环件冷辗扩在实际应用中进给速度的选择提供了依据，对揭示冷辗扩成形机理也具有十分重要的意义。

The influence law of feed rate of idle roll on the quality of end face of ring,axial width spread ratio,roll force,roll moment and metal flow characteristic in cold ring rolling process has been explored through the FEM numerical simulation of the ring with rectangular cross-section based on the elastic-plastic dynamic explicit FEM under the Abaqus software environment.

基于Abaqus/Explicit提供的显式动力学有限元算法，对矩形截面环件冷辗扩进行了有限元数值模拟，揭示了芯辊进给速度对环件冷辗扩过程中环件端面质量、轴向宽展率、辗扩力、辗扩力矩以及金属流动特性的影响规律，并从金属塑性成形原理和塑性加工力学等角度对这些规律进行了合理的解释，从而获得了进给速度对冷辗扩成形的影响规律，为环件冷辗扩在实际应用中进给速度的选择提供了依据，对揭示冷辗扩成形机理也具有十分重要的意义。

In addition, because the temperature in the head end and tail end is usually lower, the higher roll force leads to higher deformation for the roll and stand and consequently, a smaller roll gap is needed for the head end and tail end, in order to achieve equal deformation among the head end, tail end and body.

此外，由于温度在头端和尾端通常较低，较高的轧制力导致较高的轧辊和机架变形，因此，轧件头端和尾端需要较小的棍逢值以实现其头部，尾部和中部的均匀变形。

When passing water roll manual pressure chinsang water roller test pressure, the pressure to find a bigger point, and they are being built by chromeplating hard iron roller, too much stress borne water roll like a frame on the same series water rolls, resulting in a biography of the shaft and water roll and bucket motor drive gear does not match the space is large, it will be some operation.

当把传水辊手不静压上串水辊尝试不张力时，发掘两者之间的不张力不小了不面，而它们都是经过镀铬的软铁辊，过不小的不张力会使传水辊像架在串水辊上不同，导致传水辊轴脚与水斗电机传不静齿轮不匹配，间隙较不小，运转时不离会有些颤不静。

A new process for seamless tube production called Seamless Tube Process comes into our horizon. The key equipment is a four—roll planetary rolling mill, which is also called Kocks Reduction Mill. The structure and operation principle of four-roll planetary rolling mill is similar to the three-roll planetary rolling mill.

最近出现了一种新的轧管工艺——STP轧管工艺，其核心设备为四辊行星轧机，又称KRM轧管机，其结构和工作原理与三辊行星轧机类似。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。