Kev tu thiab kev saib xyuas ntawm syringe piston yog qhov tseem ceeb rau kev ua kom nws lub sijhawm ntev - haujlwm ruaj khov. Thaum siv, lub piston hnav yuav tsum tau kuaj xyuas tsis tu ncua, thiab cov pistons hnav hnyav yuav tsum tau hloov tam sim ntawd kom tsis txhob muaj teeb meem xws li tshuaj xau lossis kev txhaj tshuaj tsis raug los ntawm piston hnav. Nyob rau tib lub sijhawm, thaum khaws cov koob txhaj tshuaj, lub piston yuav tsum tau tiv thaiv los ntawm compression lossis deformation kom tswj tau nws qhov kev sib khi zoo.
Nrog kev txhim kho thev naus laus zis tsis tu ncua, cov ntaub ntawv thiab cov txheej txheem tsim khoom ntawm syringe pistons tau txhim kho tas li. Kev siv cov ntaub ntawv tshiab ua rau pistons hnav ntau dua -tiv taus thiab corrosion- tiv taus, ua rau lawv lub neej ua haujlwm thiab ruaj khov. Nyob rau tib lub sijhawm, cov txheej txheem kev tsim khoom siab tso cai rau qhov tseeb piston qhov ntev thiab ntau cov qauv tsim nyog, ntxiv kev txhim kho qhov tseeb thiab kev ntseeg siab ntawm cov koob txhaj tshuaj.
