Fishplate Material Upgrades thiab Joint Defect Protection
Dab tsi yog cov ntaub ntawv hloov kho cov lus qhia thiab cov txiaj ntsig tseem ceeb ntawm cov ntses rau cov kab hnyav -haul?
Cov kev taw qhia tseem ceeb ntawm cov khoom siv hloov kho dua tshiab rau cov ntses ntawm hnyav- cov kab tsheb yog los ntawm cov pa roj carbon zoo tib yam (xws li Q235 thiab 45 # steel) mus rau siab - lub zog alloy steel (xws li 40Cr thiab MnB steel). Qee qhov kev ua haujlwm siab- kawg tseem yuav siv coj- cov ntaub ntawv alloy resistant kom ua tau raws li qhov siab load thiab siab cuam tshuam cov kev xav tau ntawm hnyav- cov kab. Cov txiaj ntsig tseem ceeb ntawm kev hloov kho siab siab - lub zog ntses phaj yog qhov ua tau zoo dua tensile zog, yield zog, thiab hnav tsis kam. Lub zog tensile tuaj yeem nce los ntawm 400MPa ntawm cov pa roj carbon zoo tib yam mus rau ntau dua 600MPa, tiv taus qhov cuam tshuam loj thiab nro los ntawm hnyav- tsheb ciav hlau thiab txo kev sib koom ua ke thiab hnav. Nyob rau tib lub sijhawm, alloy steel fishplates muaj zog dua thiab qaug zog, tuaj yeem tiv taus ntev - lub sij hawm siab - zaus load cuam tshuam, tsis tshua muaj kev tawg thiab tawg, thiab muaj kev pab cuam lub neej 2-3 zaug ntev dua li cov pa roj carbon steel fishplates. Tsis tas li ntawd, qee cov ntaub ntawv kho dua tshiab kuj ntxiv corrosion{21}}cov khoom tiv thaiv, txhim kho kev tiv thaiv kom ya raws thiab ntsev tsuag corrosion, ua kom haum rau qhov chaw sab nraum zoov, txo cov nqi tu, thiab ua kom muaj kev ruaj ntseg ntawm kev sib txuas hnyav hnyav.
Dab tsi yog hom kev tsis xws luag thiab ua rau cov pob qij txha ntses?
Feem ntau cov teeb meem ntawm cov pob qij txha ntses feem ntau suav nrog kev sib koom ua ke, kev hnav khaub ncaws ntses, kab nrib pleb, pob txha, thiab misalignment ntawm txoj kev tsheb ciav hlau. Lawv cov laj thawj muaj feem cuam tshuam nrog cov khoom siv, kev teeb tsa, thiab kev ua haujlwm ib puag ncig. Kev sib koom ua ke yog feem ntau yog vim tsis txaus bolt preload, ntsia liaj qhov rooj corrosion thiab stripping, los yog tsis zoo haum nruab nrab ntawm cov ntses thiab cov tsheb ciav hlau, ua rau muaj qhov khoob thaum lub tsheb ciav hlau vibration. Fishplate hnav feem ntau yog vim qhov tsis sib xws ntawm txoj kev tsheb ciav hlau ntawm qhov sib koom ua ke, ua rau muaj kev cuam tshuam kev sib txhuam thaum lub tsheb ciav hlau ua haujlwm, lossis cov khoom siv tsis txaus hnav tsis kam, ua rau deformation ntawm mating nto lub sijhawm. Kev tawg thiab tawg yog tshwm sim los ntawm cov khoom siv tsis txaus, qaug zog hnav, lossis kev ntxhov siab tsis sib xws vim kev sib txawv ntawm kev teeb tsa, ua rau tawg tawm ntawm cov ntsiab lus kev ntxhov siab. Kev sib koom ua ke ntawm txoj kev tsheb ciav hlau feem ntau yog vim qhov tsis sib xws ntawm cov phaj phaj thaum lub sijhawm teeb tsa, deformation ntawm txoj kev tsheb ciav hlau xaus, lossis tsis sib haum pw tsaug zog, ua rau misalignment ntawm txoj kev tsheb ciav hlau ntawm qhov sib koom ua ke. Tsis tas li ntawd, qhov chaw ua haujlwm hnyav (xws li qhov chaw ntub dej lossis dej ntsev) ua kom cov ntses phaj corrosion, ntxiv rau ntau yam tsis xws luag thiab ua rau lub neej ua haujlwm luv.
Yuav ua li cas Optimize thiab tiv thaiv kev sib koom ua ke los ntawm Fishplate Installation txheej txheem?
Optimizing cov txheej txheem kev teeb tsa ntses ntses tuaj yeem tiv thaiv kev sib koom ua ke. Qhov tseem ceeb yog kom ntseeg tau tias kev teeb tsa raug, kev ntxhov siab tsis sib xws, thiab nruj haum. Ua ntej, ua ntej kev teeb tsa, xyuas qhov zoo ntawm lub phaj phaj, kev sib koom ua ke, thiab bolts, tshem tawm xeb, roj, thiab cov khib nyiab kom ntseeg tau tias qhov sib xyaw ua ke zoo thiab tsis txhob muaj qhov khoob. Qhov thib ob, nruj me ntsis ua raws cov qhov ntawm cov ntses phaj thiab cov tsheb ciav hlau kom ntseeg tau tias cov bolts tuaj yeem hla tau zoo, nrog lub qhov sib txawv tsis tshaj ± 0.3 hli kom tsis txhob muaj kev ntxhov siab tsis sib xws tom qab kev teeb tsa. Thaum lub sij hawm bolt installation, nruj tusyees, tswj lub preload. Lub preload rau hnyav- cov kab thauj khoom yuav tsum tsis pub tsawg dua 800 N·m, thiab rau cov kab nrawm nrawm tsis tsawg dua 600 N·m, zam qee qhov bolts tsis dhau xoob lossis nruj dhau. Rau cov pob qij txha nrog qhov tsis sib xws ntawm txoj kev tsheb ciav hlau, kho shims tuaj yeem muab ntxiv kom du ntawm txoj kev tsheb ciav hlau ntawm qhov sib koom ua ke, txo cov kev sib txhuam. Tom qab kev teeb tsa, xyuas qhov ntsuas ntsuas thiab qib sib txawv ntawm qhov sib koom ua ke thiab kho tam sim kom ua raws li cov lus qhia tshwj xeeb. Tsis tas li ntawd, kev sib tsoo thiab khawb rau cov phaj ntses yuav tsum tau zam thaum lub sij hawm teeb tsa los tiv thaiv cov kab nrib pleb thiab txo qhov muaj peev xwm los ntawm qhov pib.
Yam dab tsi cuam tshuam rau lub neej qaug zog ntawm cov ntses ntses, thiab yuav ua li cas kom lawv lub neej qaug zog ntev?
Lub neej qaug zog ntawm fishplates yog feem ntau cuam tshuam nrog plaub yam: cov khoom siv, kev teeb tsa raug, kev khiav hauj lwm load, thiab qib txij nkawm. Kev tswj hwm cov xwm txheej no tuaj yeem ua rau lawv lub neej qaug zog. Hais txog cov khoom siv, siab - lub zog, siab - toughness alloy steel fishplates muaj lub neej nkees ntev dua li cov pa roj carbon steel fishplates; yog li ntawd, hlau alloy steel yuav tsum tau ua ntej rau hnyav-load thiab siab- kab ceev. Hais txog qhov tseeb ntawm kev teeb tsa, kev sib txawv me me ntawm qhov sib txawv, nruj haum, thiab cov ntsia hlau ntsia hlau ua ntej txo qis kev ntxhov siab, tiv thaiv kev qaug zog tawg, thiab ua rau lub neej qaug zog. Hais txog kev khiav hauj lwm load, ntau qag load thiab siab ceev ceev ceev fishplate qaug zog hnav; Yog li ntawd, nruj tswj ntawm kab load yog tsim nyog kom tsis txhob overload ua hauj lwm. Hais txog kev saib xyuas qib, tsis tu ncua tshuaj xyuas cov ntses rau hnav, corrosion, thiab tawg, ceev ceev ceev nrooj bolts, thiab hloov cov khaub ncaws hnav lossis deformed tuaj yeem ua rau lawv lub neej qaug zog. Tsis tas li ntawd, qhov tawv tawv thiab kub-dip galvanizing ntawm cov phaj phaj txhim kho lawv cov hnav tsis kam thiab corrosion kuj, txuas ntxiv rau lub neej qaug zog thiab txo qhov hloov zaus.
Dab tsi yog qhov yuav tsum tau sib hloov pauv thiab ceev faj rau cov ntses ntawm ntau hom kev tsheb ciav hlau?
Fishplates ntawm ntau hom kev tsheb ciav hlau (xws li 50kg / m thiab 60kg / m rails) tsis tuaj yeem hloov pauv tau. Qhov kev sib hloov ntawm qhov yuav tsum tau ua ntawm "tib yam kev tsheb ciav hlau, tib lub ntsiab lus" yuav tsum tau ua raws li nruj me ntsis. Lub hauv paus yog los xyuas kom meej tias lub thickness, qhov chaw, thiab qhov ntev ntawm cov ntses phaj precisely phim lub rail web qhov ntev. Cov phaj tuab rau 50kg / m rails yog 22mm, thiab lub qhov ntsia hlau qhov nruab nrab yog 130mm; cov phaj tuab rau 60kg / m rails yog 24mm, thiab lub qhov ntsia hlau qhov chaw nruab nrab yog 140mm. Qhov sib txawv ntawm qhov sib txawv tseem ceeb ntawm ob yuav ua rau tsis zoo, kev ntxhov siab tsis sib xws, thiab kev sib koom ua ke yog tias sib hloov. Hais txog kev ceev faj, thaum hloov cov phaj phaj, nws yog ib qho tsim nyog yuav tsum paub meej txog hom kev tsheb nqaj hlau thiab cov lus qhia tshwj xeeb thiab xaiv cov qauv sib xws ntawm cov phaj ntses kom tsis txhob siv yuam kev. Yog tias yuav tsum tau hloov pauv ib ntus raws li qhov xwm txheej tshwj xeeb, nws yog qhov tsim nyog los xyuas kom meej tias lub load- lub peev xwm ntawm lub phaj phaj tsis qis dua li ntawm tus qauv qub, thiab kev saib xyuas yuav tsum tau ua kom muaj zog tom qab kev teeb tsa, thiab nws yuav tsum tau hloov nrog cov qauv sib txuam raws sijhawm. Tsis tas li ntawd, rau fishplates ntawm tib hom tsim los ntawm cov tuam txhab sib txawv, nws yog ib qho tsim nyog kom paub meej tias lawv qhov sib txawv ntawm qhov sib txawv raws li qhov tshwj xeeb kom tsis txhob muaj teeb meem kev teeb tsa lossis kev ntxhov siab tsis sib xws tom qab kev sib hloov vim qhov sib txawv ntawm qhov sib txawv. Tom qab hloov pauv, qhov kev sib txuas ua ke yuav tsum raug kuaj xyuas kom ntseeg tau tias nws nruj thiab txhim khu kev qha kom tsis txhob muaj kev nyab xeeb.