压下

It follows that the greater the difference between the measurements, the worse the stiction.

如果有较差的摩擦，则测量值将产生较大的差距（压下和抬起之间， L2和 L3的差距）。

Note: The cross bar is lowered by depressing the lock pates (5026) on each side of the cross bar and pushing downwards.

注意：十字棒降低要压下锁定盘5026在十字棒的两边。

When high-strength sheet metal straightening,it will have a Turtle phenomenon,its process control model is obviously inadequate hydraulic pressing,the Shaft of straightening machine Often broken and the work of roller bearings damage Frequently.so it is necessary for the fuel tank pressure,displacement and the roll rotation of the motor current,torque drive signal for analysis.

当矫直高强度薄板时，会产生龟背现象，其工艺控制模型中液压压下明显不足和矫直机传动轴经常断，工作辊轴承经常损坏问题，于是很必要对液压缸压力，位移和各辊的电动机转数，电流，传动扭矩信号进行分析。

AMD AthlonXP platform for the first CPU to the radiator core at the top level, and then vertically down, thus before the Silicone Grease as a result of applying pressure and heat sink to fill the gap between the CPU core.

对于AMD AthlonXP平台，首先要将散热器水平置于CPU核心上方，然后垂直压下，这样就使之前涂抹的硅脂由于压力填满散热片和CPU核心之间的空隙。

To manufacture Calphalon Tri-ply copper cookware, we bond these three metals together under extreme pressure into a single disk. The disk is then expertly drawn into its final shape-a vessel with equally thick walls and bottom, to ensure even heating.

为了生产家富乐三铜烹饪器皿，我们在极压下把这三种金属合成一张圆形金属板，然后经过专业加工，成为成品—一个边缘和底部厚度相同的容器，确保均匀受热。

The transfer of mass and heat is quick. Because of operation at negative pressure, there is no flying dust. The equipment has no dead corner. It can clean is fully and without cross pollution. Its heating may use steam, or electric heater.

质热传递快，在封闭负压下操作，无粉尘飞扬，设备无死角，清洗彻底，无交叉污染，加热可采用蒸汽或电热。

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。

The residual stress and deformation of the piece as well as the influences of tension on the crown and screw-down were analyzed by using the models. The comparison of simulation results and experimental data prove that the FEM models are accurate and reliable.

利用所建立的模型对带钢轧制过程轧件的残余应力、变形以及张力对板凸度和压下量的影响进行了模拟分析，模拟结果与实验结果的比较证明所建立的模型是正确的。

This paper is the innovation of an imported used five-tandem mill. The main innovation work is to innovate the screw-down type and the control of rolling.

本课题是进口五机架冷连轧机组的改造工程，改造工程主要针对老式轧机的不足之处，对其压下方式和轧线控制进行了全面改造。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。