Lub brake khau rov qab ncab lub caij nplooj ntoos hlav siv qhov nro ntawm lub caij nplooj ntoos hlav kom ceev nrooj rov qab khau khiab rau nws txoj haujlwm qub tom qab ua haujlwm los xyuas kom meej cov nyhuv ntawm nruam braking. Nws yog ib tug nuv-hom tensile caij nplooj ntoos hlav ua los ntawm txias winding ntawm caij nplooj ntoos hlav steel hlau.
Cov kev xav tau zoo rau cov khau brake:
1) Cov khoom siv
Cov khoom siv caij nplooj ntoos hlav yuav tsum yog ua los ntawm pawg I. thiab II carbon caij nplooj ntoos hlav hlau.
2) Hardness
Tus nqi hardness ntawm lub caij nplooj ntoos hlav txias-coiled tom qab quenching thiab tempering kho yog xaiv nyob rau hauv ntau ntawm 44-52HRC. Hauv cov xwm txheej tshwj xeeb, tus nqi hardness tuaj yeem nthuav dav mus rau 55HRC.
3) Cov kev xav tau zoo
Qhov saum npoo ntawm lub caij nplooj ntoos hlav yuav tsum tau kho nrog blackening, thiab qhov chaw ntawm cov hlau hlau yuav tsum du, thiab qhov tsis xws luag xws li tawg, oxide nplai, thiab xeb yuav tsum tsis txhob tso cai; Yuav tsum tsis muaj qhov caws pliav thaum tig ntawm tus nuv; Cold-coiled springs tsis tso cai rau tus kheej indentations, pits thiab khawb uas yog ib nrab ntawm cov khoom siv txoj kab uas hla.
4) Lub caij nplooj ntoos hlav tensile nrog cov kev cai ntawm kev ua haujlwm txwv tsis pub muaj kev deformation mus tas li raws li kev txwv kev ua haujlwm.
