Friday, December 9, 2011

Measures on Leakage Removing of Hydraulic Method

1 Sensible selection on dimensions for sealing ring and slots



The sealing material might be suitable with hydraulic oil. The rubber hardness really should be chosen as per method working stress. To be able to meet reliable and long-use sealing, the slot style might be with proper pressing charge and rod mill. Excessive pressing fee will raise compressive pressure and friction. The sealing friction waste will improve to shorten daily life. As well little style will result in flawed sealing and leakage. 0-shaped sealing ring meets wide use based on straightforward construction, simple installation, audio sealing feature and trustworthy operating problem. The static sealing might not meet any leakage. Thinking about longevity development, the design must prevent the pooling of central radius line as considerably as probable. Consequently, the sealing ring really should be chosen by international normal. The slot also requires to satisfy related design normal.



two Designs of devices and pipeline structure should certainly be reasonable



The gadget style must be with guiding edge to keep away from damage to sealing objects. When putting in sealing rings in sharp edges and slots, the protector cover really should be used to stay clear of damage. The setting of hydraulic pipe really should make the distance in between rod mill and executive institute as brief as possible. The weld fittings, specially for that weld fittings in 90-degree edge will need to be in small quantity as attainable to lessen press harm and friction. The hydraulic system should certainly reduce weld fittings. Around 30% to 40% of method oil leakage is in the weld fitting.



three Oil temperature manage of hydraulic method



Also high oil temperature may perhaps turn profitable oil membrane thinner to bolster friction and waste. The sealing materials will turn older quickly to be difficult and fragile. And, that may possibly cause leakage. So as to strengthen warmth spreading effect of oil tank, the warmth spreading surface might be increased. Isolate the oil entry and return by pad. Normally, the hydraulic oil temperature in tank should really be about fifty five to 65 degrees, plus the best 1 ought not to pass 70 degrees. When the organic cooling oil passes the permitted level, the cooling water pipeline or cooler on oil-return net inside the tank really should be added to drop down oil temperature.



four Choose suitable fittings



The common fittings in hydraulic method contain three types: Flared or NPT fittings, ferrule and weld fittings. Such styles own their very own attributes, so we really should choose based on working reliability and economic situation. The flared fitting is less costly, ferrule fitting can endure bigger vibration, and weld fittings can endure the conditions of substantial stress, temperature, big mechanical stress and powerful vibration.



5 Rigid manage on production good quality



The dimension distinction of sealing slot will need to be strictly managed. Rough surficial problem really should meet drawing requirement. The slot edge should not be with burr and damage. Gadgets should really be totally washed before installation. The good quality of sealing cap size and flange screw must be ensured. The gap should never be too massive. On the other hand, the sealing gadgets could be squeezed out.



Besides, the maintenance conduite should really be reinforced in production by on-time checking, hydraulic device restore and hydraulic safety. The mechanical vibration and collision stress should certainly be avoided to find leakage in time. That can prevent operation dilemma and oil leaking to lengthen machine's longevity and improve completeness rate.

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