1: Yuav ua li cas yog cov khoom hardness tswj nyob rau hauv railway clip ntau lawm?
Railway clip hardness feem ntau khaws cia nyob rau hauv HRC 42-50 los ntawm cov txheej txheem kev kho cua sov. Lub 60Si2MnA caij nplooj ntoos hlav steel undergoes roj quenching ntawm 850℃tom qab tempering ntawm 400℃kom ua tiav cov khoom zoo. Kev ntsuas qhov tawv tsis tu ncua siv Rockwell testers ua kom muaj kev sib xws ntawm cov khoom tsim khoom. Lub hardness ntau dhau yuav ua rau cov pob txha tawg thaum tsis txaus hardness txo elasticity. Cov txheej txheem thoob ntiaj teb zoo li ISO 2639 qhia txog qhov kev hloov pauv hloov tau zoo rau kev lees paub zoo.
2: Cov kev kho deg dab tsi yog siv rau kev tsheb ciav hlau clips?
Cov kev kho saum npoo feem ntau suav nrog phosphating, zinc plating, dacromet txheej, thiab epoxy painting. Phosphating tsim ib txheej microporous uas txhim kho lubricity thaum lub sij hawm installation. Zinc plating muaj kev tiv thaiv corrosion yooj yim rau cov qauv ib puag ncig. Dacromet muab cov ntsev zoo tshaj - tshuaj tiv thaiv rau thaj chaw ntug dej hiav txwv. Epoxy txheej muab kev tiv thaiv corrosion nrog xim - coding xaiv. Txhua qhov kev kho mob yuav tsum ua kom tau raws li qhov yuav tsum tau ua nyob rau hauv EN 13481.
3: Yuav ua li cas clip elasticity cuam tshuam kev khiav haujlwm?
Elasticity tso cai rau cov clips los tuav lub zog clamping tsis tu ncua txawm tias muaj kev tsheb ciav hlau. Lub caij nplooj ntoos hlav steel lub modulus ntawm elasticity (feem ntau 200-210 GPa) txiav txim qhov khoom no. Zoo elasticity haum rau thermal expansion yam tsis poob nro. Tsis txaus elasticity ua rau taug qab cov teeb meem geometry. Cov neeg tsim khoom txheeb xyuas qhov elasticity los ntawm kev sim ntsuas lub voj voog (2+ lab lub voj voog).
4: Dab tsi yog qhov kev sib raug zoo ntawm clip nruj thiab kev co damping?
Stiffer clips (siab dua lub caij nplooj ntoos hlav) muab kev tiv thaiv ntau dua rau kev hloov tsheb ciav hlau. Txawm li cas los xij, yuav tsum muaj kev nruj me ntsis kom tso cai rau lub zog vibration dissipation. Qhov zoo tshaj plaws nruj sib npaug taug qab kev ruaj ntseg nrog lub suab nrov txo. Dynamic stiffness tests ntsuas kev ua tau zoo nyob rau hauv simulated tsheb ciav hlau loads. Cov qauv tsim niaj hnub no feem ntau suav nrog kev nruj nruj rau cov ntawv thov tshwj xeeb.
5: Dab tsi yog torque specifications rau clip installation?
Installation torque ranges ntawm 80-120 Nm nyob ntawm seb hom clip thiab rail profile. SKL-12 clips feem ntau xav tau 100 Nm ± 5% rau kev nruj nruj. Torque wrenches yuav tsum tau calibrated peb lub hlis twg los xyuas kom meej. Nyob rau hauv-torquing txaus ntshai xoob fastenings thaum over-torquing yuav ua rau cov clips puas. Cov kws tshaj lij hauv teb tau txais kev cob qhia tshwj xeeb ntawm cov txheej txheem torque kom raug.