液压系统安装中的污染控制外文文献翻译、中英文翻译

1、外文资料In hydraulic system installment contamination controlPaper abstract：The hydraulic system pollution is a hydraulic pressure breakdown main reason, after in order to guarantee the installment the hydraulic system to be able the security, the reliable movement, in view of the hydraulic system insta

2、llment proposed a series of concrete measures, achieve in the construction process contamination control1 OutlineThe technology of hydraulic transmission gets swift and violent development after emerging in the 18th century. Today, the apparatus of hydraulic transmission is widely used in all trades

3、 and professions, reflect on the modernized large-scale production line particularly abundantly. The steel hot-rolled H section steel production line of horse, the volume 54 kL of the hydraulic fuel tank, 38 hydraulic motors, of different specifications hydraulic jar up to 717, only the hydraulic pi

4、peline is as long as more than 20,000 meters.The technology of hydraulic transmission has its advantage that cant be compared, this is the main reason that it can develop rapidly , meanwhile, the apparatus of hydraulic transmission has its fragiles aspects, among them the ability to resist pollution

5、 is low is an outstanding weakness . According to the records of relevant materials, the hydraulic trouble has 70- 8 to cause by the pollution of fluid. It must keep the systematic cleanness to guarantee the normal , reliable operation of the hydraulic system.2 Danger and reason that the system poll

6、utesPollutant sneak into behind the system can accelerate hydraulic wearing and tearing of part , grind , decrease , burn even destroy or cause the movements of the valve not to work or cause the noising. The pollutant will stop up the throttle hole of the hydraulic component or reduce expenditure i

7、n the chink , change the working performance of the hydraulic system, cause movements to lack proper care even not work at all, produce and act and cause the accident by mistake . The dust particle will accelerate the damage of the seal in the hydraulic jar, the superficial one is strained in the tu

8、be of jar, make it increase not to let out, thrust insufficient or movements are unstable, creep, the pace drop, produce unusual sound and vibration. Also may cause filter screen stop up, hydraulic pump suck oil to be difficult, go back oil to be smooth producing angry losing , vibration and noise,

9、will puncture the filter screen because resistance is too big while stopping up seriously , totally lose the function of filtering, cause the hydraulic and systematic vicious circle.The reason why the system pollutes is numerous, according to producing mechanism in pollution, divided into 2 kinds: (

10、1)Pollutant made , hidden in the installation in the system. (2)Pollution that is produced in the course of system work. Obviously, pollutant made , hidden in the installation of the system is mostly smear metal , burr , molding sand , coating , abradant , solid particle of welding dreg , rust one a

11、nd dust etc., they relatively loud in danger in system, must strengthen management at this stage , control pollution, guarantee the hydraulic system after installing can run safly and reliably .3 Pollution control in the hydraulic system is made and installed3.1 Pollution control that the hydraulic

12、part is processedThe processing of the hydraulic part generally demands to adopt the law of processes wetly , all processing processes want , drip , add , lubricate liquid or cleaner , so as to ensure surface process quality.3.2 Washing of hydraulic component , partBefore the new hydraulic pressure

13、one is assembled, the old hydraulic pressure one can be used through washing after being polluted, should accomplish the following several points in the cleaning process.1)Hydraulic pressure pieces of disassembly and assembly , wash , should go on among clean room to accord with the national standar

14、d, if there is operating room of conditions that can be filled and pressed, make the indoor pressure higher than outdoors, prevent the atmospheric dust from polluting. If restrain terms from, should operate one to isolate alone even , seldom allow hydraulic pressure assembly one and machining of one

15、 sometimes in the same room among the pincers workers, forbid decomposing and assembling the hydraulic pressure one in the open , in warehouse of sometimes the shed , incidental absolutely .The hydraulic pressure of disassembly and assembly is a hour, attenbant should wear fiber difficult work cloth

16、es , work cap that come off, in case fiber, dust, hair, scurf,etc. scattered to fall into hydraulic system cause artificial to pollute. Forbid operating one and smoking , taking food inside.2)The hydraulic pressure one should go on in washing the platform to wash special-purposly, if limited by the

17、condition , guarantee cleanness degree of the temporary workingbench .3)The cleaner allows to use the kerosene , petrol and use the same hydraulic oil of trade mark of oil with hydraulic system work.4)The part after washing is forbidden to be polished with the cotton , flax , silk and chemical fibre

18、 manufactured goods, prevent the fiber coming off from polluting the system. Forbid with leather tiger to part blast air (leather tiger have dust particle ) too, can dry up the part with the clean and dry compressed air if necessary.5)Part wash , forbid , put in land , cement ground , floor , pincer

19、s worker platform and assemble workingbench directly, and should put into container with cover , pour into the hydraulic oil .6)Have already washed but the part that wouldnt be assembled should be put into and antirusted and saved in the oil, moist area and season especially should pay attention to

20、antirusting.3.3 Pollution control in a piece of transportation of hydraulic pressureIn hydraulic component , package transportation , should pay attention to the dustproof , rain-proof , especially hydraulic pressure piece of marine transportation want , fight with rain-proof paper or plastic wrappi

21、ng paper kind to pack to transport for long-distance, put right amount of desiccant , does not allow rainwater , sea water to be exposed to the hydraulic pressure one . Before casing and after unpacking , should check carefully whether the oil mouth is stopped up , stopped up firm with the stopper,

22、to receive slight oil mouth of pollution take remedy in time , must decompose , wash to the hydraulic pressure one with serious pollution moreover.3.4 The fuel tank refuelsThe fuel tank must be checked its internal cleanness degree before fuel-injection, the one not up to standard will be cleared up

23、 ; Cleanness degree that the fluid should be examined it before being joined; Must not allow to pour into the oil the fuel tank directly through filtering at the time of fuel-injection.3.5 The system resumesAfter the system is pickled, developed, can link all components , pipelines on request the jo

24、b return circuit . This course should pay special attention to being in charge of connecting and keeping a public place clean , finish joining , , try hard to avoid dismantling, should pay attention to , wrap up , well , guarantee , in charge of , connect with clean cloth if necessary , calibre poll

25、ute.4 SummaryHydraulic systematic pollution control runs through in the whole construction course, require operators every step should consider the measure of keeping a public place clean , reduce system pollute , guarantee the hydraulic system after constructing can run safly , reliably to the grea

26、test extent.中文译文液压系统安装中的污染控制论文摘要：液压系统污染是液压故障的一个主要原因，为了确保安装后的液压系统能够安全、可靠运行，针对液压系统安装提出一系列具体措施，以达到施工过程中的的污染控制。1概述液压传动技术在18世纪诞生后即得到迅猛发展。今天，液压传动设备在各行各业得到广泛的应用，在现代化的大型生产线上体现得尤为充分。马钢热轧H型钢生产线，液压油箱容积54 kL，液压马达38个，各种规格的液压缸多达717个，仅液压管线长达2万多米。 液压传动技术有其不可比拟的优点，这是它得以迅猛发展的主要原因，与此同时，液压传动设备又有其脆弱的一面，其中抗污染能力低是突出的弱点。据有

27、关资料记载，液压故障有70%80%是由油液污染导致的。要保证液压系统正常、可靠的运行，必须要保持系统的清洁。2系统污染的危害与原因污染物混入系统后会加速液压零件的磨损、研损、烧伤甚至破坏或者引起阀的动作失灵或者引起噪声。污染物会堵塞液压元件的节流孔或节流缝隙，改变液压系统的工作性能，引起动作失调甚至完全失灵，产生误动作造成事故。灰尘颗粒在液压缸内会加速密封件的损坏，缸筒内表面的拉伤，使泄漏增大，推力不足或者动作不稳定、爬行、速度下降，产生异常的声响与振动。还可能引起滤网堵塞，液压泵吸油困难，回油不畅而产生气蚀、振动和噪声，堵塞严重时会因阻力过大而将滤网击穿，完全丧失过滤作用，造成液压系统的恶性循环。 系统污染的原因很多，从污染产生机理来看，分为2种：(1) 制作、安装过程中潜伏在系统内部的污染物。(2) 系统工作过程中产生的污染。显然，系统制作、安装过程中潜伏的污染物多为切屑、毛刺、型砂、涂料、磨料、焊渣、锈片和灰尘等固体颗粒，它们对系统的危害比较大，必须在这一阶段加强管理，控制污染，确保安装后的液压系统能够安全可靠地运行。3液压系统制作、安装中的污染控制3.1液压零件加工的污染控制 液压零件的加工一般要求采用“湿加工”法，即所有加工工序都要滴加润滑液或