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Hydraulic Damper With Zinc Alloy Metallic Rotor,vane Damper,soft Close Damper

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hydraulic damper with?zinc alloy metallic?rotor,vane damper,soft close damperProduct name:Vane damper?Product model:TRD-N1-L/R353 1.GeneralThis specification give the related model damper technical requirement, testmethod and product model description, apply to damper production and test.2.Test requirement and test methoditem desctiption Technical requirment Test method ※ 2.1Damping timeDamping time:8±4s1.Test machine:test special tools2.method:T=3.5N?m(35kgf?cm) make the counterpoise position at 0?,the reset.(once is ok)a.pull the counterpoise to110?position,then to 90?~80?（85?is best),measure the working angle from 70 to 0 degreeb.load torque in horizontal line:3.5N?m(35kgf?cm)c.test angle:70?→ 0?d.test temperarure:23℃±2℃2.2durability1)working angle more than 2 seconds2)no oil leakage, no broken1)durability test conditiona.test machine:test special tools(drop free)b.test method:force close open angle to close angle 100?±10?.c.force close:pneumatic pressure 30～50PSId.working angle:0?←→110?e.frequency 10 time/minutesf.test temperature:23℃±2℃g.durability time:50,000cycles2)judging criteria after testa)working angle:after test, put damper at room temperature 23℃±2℃ more than 24 hours,test it according to item 2.1 and get the damping time b)appearance:judge the appearance2.3Working temperature range1)-5℃:10 ± 5s2)50℃:6 ± 3s1)working temperature test conditiona.damper place temperature:－5℃,50℃b.damper place time:>3 hours2)judging criteria after testplace the damper in each temperature, and then put in room temperature, test it according to item 2.12.4Storage temperature1)damping time change rate in preliminary stage within±30％2)no oil leakage, no broken1)storage temperature test conditiona.damper storage temperature:－20℃,60℃b.damper storage time:72hours2)judging criteria after testa.damping time, place the damper in each temperature and then put in room temperature, test the damping time according to item 2.1b.Appearance: judge the damper appearance.2.5Reverse torque<1.

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