液压系统安装中的污染控制外文文献翻译、中英文翻译

外文资料

In hydraulic system installment contamination control

Paper 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 installment proposed a series of concrete measures, achieve in the construction process contamination control

1Outline

The 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 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 pipeline is as long as more than 20,000 meters.

The technology of hydraulic transmission has its advantage that can't 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 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 pollutes

Pollutant 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 in 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 tube 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, 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:

(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 and 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 .

3Pollution control in the hydraulic system is made and installed

3.1 Pollution control that the hydraulic part is processed

The 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 , part

Before the new hydraulic pressure one is assembled, the