The sealed technology of hydraulic pressure a powerful person reachs his to analyse

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  • source:EDON CNC Machining
The service life of all sorts of hydraulic pressure a powerful person in hydraulic pressure bracket is very low, the way that abroad settles and method are improve a system filter precision and the quality that improve emulsion, but yield results is not big. What the article analysed support a powerful person is sealed deputy development process, discussed sealed the relation between deputy material and sealed function. A powerful person of the hydraulic pressure in pointing out sealed technology is to increase hydraulic pressure support the key of service life. Hydraulic pressure bracket is the timbering equipment in coal mining machinery, fall to be able to use 5 years commonly in the well through heavying repair, but the service life of all sorts of hydraulic pressure a powerful person in hydraulic pressure bracket is very low however, 3 long months, short have a few weeks only, the way that abroad settles and method are add a system filter precision and the quality that improve emulsion, but yield results is not big. With England a powerful person of some hydraulic pressure is exemple, although machine what precision reachs system of whole hydraulic pressure to filter,precision is compared tall, but because service life is low, already was faced with in our country fall into disuse. A powerful person of 1 influence hydraulic pressure is sealed the main factor of function is sealed the main factor that component damages is the impurity in working fluid. These impurity are abrade between sealed component, make a powerful person produces leak. Accordingly, abroad ever offerred the hydraulic pressure element of corresponding grade, should use the filter of corresponding precision. They think the oil pump of 5µM is sealed component, if use,filter precision is 3 ／ the filter of µM, life can compare those who use 10µM to raise 10 times. But hydraulic pressure bracket uses a powerful person, working environment is very harsh. In coal mining working face, vitta overall length many meters 1000, contact socket is amounted to 4000 many, fluid box does not have special dustproof establishment. Have in emulsion float in great quantities foreign matter, in pillar crock bottom and antrum of a powerful person, stay have bead of more coal fines, cliff and scrap. Enter core of fluid a powerful person and valve base, because open is shut more frequent, liquid velocity of flow is high, sealed meet very quickly invalidation. Practice proves to reduce liquid of system of bracket hydraulic pressure to pollute foreign matter, it is very difficult, somebody once was imagined high-pressured filter is used in emulsion pumping station, be in place of every bracket entrance to increase small-sized filter at the same time. But be jammed very quickly in the job, form stream. On the other hand, as the development of technology of hydraulic pressure bracket. Raised taller requirement to the service life of the performance characteristics of a powerful person and a powerful person. Current, filtering of the filter when 120 eye and magnetism below the condition of device, open with what carry a powerful person that be mixed by the total flow of the emulsion of test a powerful person close a number, come the life of batch valve. But actually real work result differs below indoor type experiment and well very big. Make the formal test of multilateral home now, increased to refuse contaminative demand, have a plenty of in emulsion mix into enters appropriate coal fines, have a plenty of add mechanical impurity. For this, need is used new-style, fight contaminative ability strong, agree with what the condition works below the well is sealed deputy. The history of sealed material and core of current situation a powerful person mix a powerful person of 2 hydraulic pressure the leak of valve base interface, it is the result of impact of working liquid element. The contact that the main reason that affects sealed result is core of a powerful person and valve base is compared pressure, rough degree reach press difference. The joint face when core of a powerful person and valve base with P force impaction, working liquid element with F force impact, sealed material can produce flexibility to be out of shape. If sealed deputy always fight force to be more than molecular repulsion, sealed and effective, can form leak otherwise. Inchoate hydraulic pressure bracket, there is other and sealed measure between kinematic pair, it is a metal direct contact is sealed, ask sealed deputy contact is planar namely be identical, have taller treatment precision, must increase otherwise sealed deputy adhesion, make plasticity of osculatory surface generation is out of shape, jam leak passageway. CNC Milling CNC Machining