液压器

In this paper, the residual contact pressure and static interface friction coefficient of tube - to - tube-sheet joints of heat exchangers is investigated.

本文采用换热器管板单管模型研究了换热管与其液压胀接后的残余接触压力和静摩擦系数。用弹性卸载法测量了换热管从单管胀接模型中拉出后，模型外表面的周向应变，并由此计算出接触面处的残余接触压力的实验值。

Main business: NRK hyacinth, Shouban hyacinth, electric hoist, steel hanging folder, oil drums hanging folder, Jack, the word block, hydraulic loader, steel Suohe Dili, mechanical jacks, lifting the chain, hook , Tied up, with rigging, and so on.

主要经营产品：手拉葫芦，手扳葫芦，电动葫芦，钢板吊夹，油桶吊夹，千斤顶，工字滑车，液压搬运车，钢索荷帝机，机械千斤顶，起重链条，吊钩，捆绑器，带索具等。

Our engineers will also design custom hoppers, manifold piping system , A variety of batch or continuous discharge arrangements , including plate valve, hydraulic lift and tail gate, screw transporter , pneumatic convey etc. To discharge collected materials to bin, conveys, etc.

我们的工程技术人员可根据用户要求设计特殊的安装方式，特种料斗，多吸口管道系统，连续排料或批次排料等卸料方式，包括插板阀，液压翻斗卸料，螺旋输送机，气力吹送等，把收集的物料排送到容器罐、转换器等。

Field application shows that the lifting jack features in easy and secure operation and low cost during the process of removing sticking. It has broad prospect in the market and has great economic results.

现场使用结果表明，液压举升器在修井解卡作业中操作简便、安全、成本低，市场前景广阔，经济效益十分显著。

The sticking of the production and sand control pipe strings is a common problem occurring during workover. The hydraulic lifting jack gets critical to fulfill the major workover without using the drilling platform.

生产及防砂管柱遇卡是油田生产中常遇到的修井作业难题，为了能够在不使用钻井平台的情况下完成大修作业，液压举升器成为解决目前石油平台使用紧张状况非常有效的设备。

The paper makes description of effective box beam construction technology and workmanship which can be adopted in other projects,such technologies as:manufacturing and fixing of reinforcement,steel reinforcement fixing baseplate,web plate and top plate respectively and lifting the steel skeleton into form,requirements of design and manufacturing and way of utilization for dismantling-erection type formwork and hydraulic formwork,optimization of concrete ratio,concrete pouring process of two ends of beam in priority over the middle,in sequence of first baseplate followed by web plate and top plate at last,concrete pouring in inclined section and in horizontal layer,concrete vibration mainly byexternal vibrator in assistance with internal vibrator,methods and regulation for steam curing of concrete,dual controls over stress and strain to ensure quality of prestressing workmanship,construction method of effective beam moving by heavy-weight special moving facility,some regulations and key notes about construction of grouting under pressure,beam ends sealing,water-proof layer on the bridge surface system,protective coating.

文中介绍的采用胎具制作和绑扎钢筋，分底腹板和顶板分别绑扎并吊装钢筋骨架入模；拆装式和液压式两种模板的设计、制作要求和使用方法；综合考虑、优化混凝土配合比，混凝土灌注从两端至中间、先底板、后腹板、再顶板的施工顺序和斜向分段、腹板水平分层、附着式振捣为主、插入式捣固为辅的施工工艺，蒸汽养护的方法和规定；应力～应变双控制确保预应力施工质量的施工技术；采用重物移运器有效移梁的施工方法；压浆、封端、桥面防水层和保护层施工的一些规定和注意事项等都是对箱梁制造行之有效的施工技术和施工方法，并可为以后类似施工作借鉴。

Through a hydraulic system, a power takeoff delivers power from truck engine to an oil pump for oil-pumping operation.

新型采油车是在奔驰车底盘上加装机械采油系统构成，其动力由取力器从发动机取出，通过液压传动系统传递给采油抽子，进行采油作业。

By connecting the pilot valve of stepping electric motor with machinery and hydraulic servomotor device, it can form the stepping microcomputer-based governor for water turbine.

以工业控制级单片机 80C552 为核心，开发出集测频、调速、调功、开停机操作、故障诊断及与上位机通讯等功能于一体的双微机型电气调节器，并与抗油污能力强、定位精度高、漏油量小的步进电机式引导阀及机械液压随动装置相配接，构成了水轮机步进式微机调速器。

AT is by the fluid strength torque converter, the planet gear and the hydraulic control system is

AT是由液力变扭器、行星齿轮和液压操纵系统组成，通过液力传递和齿轮组合的方式来实现变速变矩。

Major process products have: jig and fixture of aircraft assembly plant and auxiliary tools; tire vulcanization and tire production line、transmission line 、loader、Lay-tire equipment、tire mould、clean mould machine、repair mould machine、tire mold 3D intelligent;warehouse palletizer;oil platform;fur machinery; electrical engineering alloy、contact process;hydraulic elevator accumulator、1t—50t electric hoist and crane machine; door and window manufacturing machine、varouris kinds of large scalestabilization machinery and mixing machine; Grain and oil produce equipment、auxiliary machine and control system; Satellite Launching base facilities; tire forming machine、cutter etc equipment parts; various kinds of box of reducer; milk packing machine and parts; elevator up and down operate panel、controlling Single Chip Micr-computer and Elevator Group Supervisory Control System; repair circuit disk produce equipment and imported equipment copped; air and water treatment equipments,etc.

主要加工产品有：飞机组装厂夹具和辅助机具；轮胎硫化机及轮胎生产线、传输线、抓胎机、存胎器、轮胎模具、洗模机、修模机、轮胎模具智能三维检测仪；立体仓库堆垛机；石油钻井平台；皮毛机械；电工合金、触头加工；液压升降台、1吨－50吨电葫芦和起重机；门窗生产机具、各种大型搅拌机械和研磨机械；粮油生产设备、辅助设备和控制系统；卫星发射基地设施；轮胎成型机、裁断机等设备配件；各类减速机箱体；牛奶包装机及配件；电梯升降操纵面板、控制单片机和电梯群控系统总成；线路芯片生产设备大修和进口设备仿制；空气和污水处理设备等。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。