剪切机

By using TCN—AN numerical torsion testing machine, the torque of Cast Iron Materials under pure shearing is measured, and its strain is also measured through XL2101B2 static strain meter, adopting method of whole bridge connection. Based on the above experiment equipments and all the measurement results, method of torsion of circular shaft is designed to measure Elastic Modulus of Cast Iron Materials.

通过 TCN—AN数控扭转试验机测量处于纯剪切状态下铸铁试件的扭矩，采用全桥接线法，使用XL2101B2静态应变仪测量铸铁试件的应变，基于以上两种实验仪器及其测量的结果，发展了圆轴扭转法来测量铸铁材料的弹性模量。

Computational fluid dynamics method was utilized to the fiowfield numerical simulation of ultrafine stirred mill, the flowfield characters(velocity gradient, shear rate dispersion of flowfield and the dissipative force of viscosity and so on) of three kinds of stirrer(disc type, stick type and spiral type) were analyzed.

利用计算流体力学方法对超细搅拌磨机进行了流场仿真数值模拟，分析了盘式、棒式、螺旋式三种搅拌器的流场特性(速度梯度、流场的剪切率分布和粘性耗散率等)。

This paper mainly consists of three parts:(1) Based on the Reddy's higher-order shear deformation plate theory and general von Kármán-type equations, put forward the governing equations of pre- and post-buckled vibration of several hybrid FGM plate forms which have not been studied adequately, triumphantly applying the perturbation technique combined with Galerkin method into equations solving, and get the comparatively simple result forms with complicated deduction at last;(2) As a new type of materials, piezoelectric fiber reinforced composite actuators were applied to optimal vibration control, interrelated informatons be depicted in this paper;(3) During the investigative cource, some factors not been considered adequently in other researches were discussed fully in the postbuckled vibration analysis, such as the temperature-dependent material coefficients, heat conduction and nonlinear vibration characteristic etc.

本文的研究工作主要包括：(1)基于Reddy高阶剪切变形板理论和广义Kármán型方程，给出了几类现有研究成果较少或没有彻底解决的FGM混合板结构的屈曲前和屈曲后振动特性研究的控制方程，成功将摄动-Galerkin混合法应用于求解过程，并给出了各控制方程相对直观且易于计算的解析解形式；(2)单向压电纤维增强复合材料(Piezoelectric Fiber Reinforced Composite，简称PFRC)是一种新型压电材料，本文将其应用到了结构振动控制研究当中，发现通过压电纤维体积含量的选择可以实现混合板结构的优化振动控制；(3)围绕几种有代表性的FGM混合板结构，讨论其屈曲后的振动特性，在分析中同时考虑热传导，材料物性参数的温度相关性，以及机/热/电荷载耦合效应对非线性振动特性的影响，最后给出了大量数值计算结果。

In this paper, shearing machine and hammer grinder were combined to pulverize the waste boards, the metal and nonmetal on the PCBs and PWBs can be liberated availably, Then a roll-type corona-electrostatic high-voltage separator are applied to separate the metal and nonmetal, at the same time, A electrostatic separators/sizers is used to separate the mixed metals.

因此，本文采用剪切式旋转破碎机和冲击式旋转磨碎机进行两级破碎，达到金属-非金属充分解离的程度，然后应用辊式电晕-静电复合电场高压电选机，对已破碎的废弃电路板进行金属颗粒与非金属颗粒分选，同时对金属之间的分选进行理论分析和实验研究。

At present, main production: 6300T following various forging presses: hot forging press, cold and warm forging presses, cold extrusion machine; Trimming presses; closed single-point, double point press; high-speed precision bar cutting machine and forging, stamping production lines with hundreds of product variety.

目前主要生产： 6300T以下的各种锻造压力机：热模锻压力机、冷温锻造压力机、冷挤压机；切边压力机；闭式单点、双点压力机；高速精密棒料剪断机和锻造、冲压生产线等上百个产品品种。

The three dimensional flow field in the triple-screw extruder with triangle configuration is the research objects of this task, including velocity field, pressure field and shear rate field etc., simulate the representative flow field in metering section of the triple-screw extruder, consisted of three-thread element with75mm pitch, has been simulated at the screw speed of 60, 120, 180, 240 and 300rpm and the flowing regulations in flow field and especially the role of the unique center zone affecting to the conveying and pressure generating ability have also been analyzed.

本课题以三角形排列的三螺杆挤出机三维流场为研究目标，研究内容包括速度场、压力场、剪切速率场等。模拟分析首先以螺距75mm的三头螺纹元件为代表，计算由其构成的三螺杆挤出机在60、120、180、240及300rpm转速下的流场，分析流动规律，并分析了特有的中心区在输送、建压方面的作用。

The Company is also supporting the production of open-book machines, shearing of the welding machine, steam-driven, with a hydraulic feeder, leveling devices, such as oriented Units on the various specifications of steel, equipped with appropriate equipment, factory design with professional strength and can meet the needs of different users.

本公司还配套生产开卷机，剪切对焊机，汽动，液压带有送料机，整平设备导向台等，对各种规格的带钢，配备相应的设备，本厂拥有专业设计力量，能满足用户不同的需求。

Polymer processing is a high-energy process operation, and screw machinery is widespread applied to the polymer processing, such as screw extruders, screw injection molding machine and so on. The screw plasticating and conveying equipments based on shear rheology are generally adopted in polymer processing, in which materiels are dominated by shear stress. Therefore, there are some ubiquity disadvantages of the current methods of polymer materials processing, such as long thermo-mechanical, high energy consumption, too big equipment structure, and dependence on material properties.

加热管高分子材料成型加工是高能耗过程作业，目前普遍采用螺杆机械，如螺杆挤出机、螺杆注射机等，在螺杆机械中物料塑化输运主要是靠螺杆旋转时对物料的拖曳作用，固体输送为摩擦拖曳，熔体输送为粘性拖曳，物料的速度梯度与其流动和变形方向垂直，这种流动与变形受剪切应力支配，所以当前的高分子材料加工方法普遍存在物料塑化输运所经历的热机械历程长、能耗高、设备结构大、对物料特性依赖性强等缺陷。

It's used to flatten the head and trail of the strip and feed the strip into the shear welder.

位于直头机之后，用于矫平带钢的头部和尾部，并将带钢送入剪切对焊机。

It's used to flatten the head and trail of the strip and feed the strip into the shear welder.

矫平机位于直头机之后，用于矫平带钢的头部和尾部，并将带钢送入剪切对焊机。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。