Fastening System Puv Tau -}} kev hloov kho thiab txij nkawm Tiered lub tswv yim
- Dab tsi yog qhov sib txawv hauv clamp clamping force thiab bolt preload ntawm 350km / h high {1} {} haul brotercher tshuab? Dab tsi tsim qauv?
Siab - ceev: 12 -}}} {{{metec · m preload; hnyav - haul: 14 -}} {14} · m. Lub hauv paus: ① Siab - ceev yuav tsum tau tsawg dua los yog sib npaug rau 0.5mm Rail Cov Kev Hloov Chaw (smookn), 12-15nks), tau ntau dhau zuj zus -; ② Hnyav muaj 35kn Log-tsheb ciav hlau (2X-nrawm nrawm), xav tau 14-16kn los tiv thaiv kev xoob. Ob leeg raug suav los ntawm cov qauv thau khoom-ua qauv.
- Lub tsev so hluav taws xob twg xav tau ovi - corrosion hloov kho tshiab nyob rau hauv ntug hiav txwv cheeb tsam)? Yuav ua li cas yog corrosion lub neej txhim kho?
Hloov kho tshiab: ① clips: 80μm zinc -} luminium txheej (hloov kub- dip galvanizing); ② Bolts: Dacromet Txheej (1000hch tsuag); ③ Clamps: 5% Nickel ntxiv. Corrosion lub neej nce 2x +: Clips 'txau 500h, rust} Dawb Lub Neej 2-3 → 8 xyoo, haum cov av noo / ntsev pos huab.
- Dab tsi yog cov lus ceeb toom xwm txheej xwm txheej rau cov neeg ua haujlwm ceev? Yuav ua li cas tsim kev saib xyuas txij nkawm thiab kev voj voog?
Warning criteria: ① 10-12kN clip force (12-15kN design); ② 350-400N·m bolt torque (400-450N·m); ③ 55-60kN spike pull-out (≥60kN); ④ 10%-15% pad compression. Measures: ① Preload clips to >12kn; ② Cov bolts qaim; ③ Txhaj resin rau spikes. Lub voj voog luv luv ntawm 1 txog 3 hlis los taug qab cov tsis muaj.
- Vim li cas thiaj haum koj kho qhov kev hloov kho qhov loj dua rau ballastless (± 16mm) vs. ballasted (± 8mm) lem? Yuav ua li cas kom ua tiav qhov no nrog Gauge blocks?
Ballastless lem (30gpa modulus) tau loj dua kev sib cav sib ceg ballasted tracks kho ntawm tamping (tsawg dua los yog sib npaug rau 6 hli). Hloov Kho: Siv 8 {{{{- 24mm kho cov blocks, hloov tuab / specs rau ± 16mm ntau. Hloov sab laug-txoj cai thaiv nyob rau hauv khub (chaw tsheb ciav hlau tiv thaiv tsawg dua los yog sib npaug rau 1mm), xyuas kom 1mm / 10M smoothness.
- Yuav ua li cas thiaj ntes tau cov teeb meem nrawm nrawm ntawm "feem sib zog kuaj"? Muab cov piv txwv ntawm txoj kev thiab cov qauv.
Kev kuaj sim hauv kev sim: piv txwv li, kev ntsuas clip quab yuam, Pad compression, thiab bolt torque ib txhij. Yog hais tias quab yuam yog li qub (12kn) tab sis pad compression yog 1mm (kev tsim qauv), bolt torque yog tsis txaus (<400N·m); if force drops with normal torque, pads are aged. Criterion: Force-compression ratio should be 6±0.5kN/mm-deviation indicates hidden issues.