Fishplate khoom thiab kev sib txuas lub zog tswj
- Dab tsi yog qhov sib txawv hauv cov khoom siv cov khoom siv thiab cov lus qhia thov ntawm Q235 hlau, Q345 hlau, thiab stainless hlau dechplates?
Q235 Steel Fishplated muaj lub tensile lub zog ntau dua los yog sib npaug rau 235mpa, zoo heev (elongation ntau dua los yog sib luag rau 26%), thiab tus nqi qis. Lawv tsim nyog rau kev kub siab ib txwm (nrawm dua lossis sib npaug ntawm 120km / h) thiab tuaj yeem tiv thaiv kev ua kom xeb, uas muaj lub neej pabcuam ib txwm muaj rau ntawm 8}}} 10 xyoo. Q345 Steel Fishplife muaj lub zog tensile ntau dua los yog sib npaug rau 345mpa, muaj zog ntau dua los yog sib npaug ntawm 1 lab mus rau 1 lab toj). Lawv haum rau kev tsheb ciav hlau hnyav (qag thauj khoom ntau dua lossis muaj kev pabcuam loj rau 12T), tuaj yeem tiv thaiv cov kev pabcuam loj ntawm 12-15 xyoo, thiab tus nqi 20% siab dua Q235 cov hlau. Cov hlwv hlau stainless hlau (304 cov khoom siv) muaj lub zog tensile ntau dua los yog sib npaug rau 205mpa, ntsev ua haujlwm tiv thaiv, thiab noo noo tsis kam. Lawv yog qhov haum rau kev ua kom haum ib puag ncig thiab cov chaw muaj tshuaj lom neeg ntawm 15-20 xyoo, tsis tas yuav muaj kev tiv thaiv thaj tsam, uas yog ib puag ncig ntawm Q235
- Yuav ua li cas txiav txim siab tus naj npawb ntawm cov ntsia liaj qhov rooj thiab lub qhov taub ntawm cov neeg foob, thiab dab tsi yog qhov cuam tshuam ntawm cov qhov tsis txaus?
43kg / m rails tau sib phim nrog 4 {{{{{{{lub qhov raws (mail / m hnyav-lauls nrog 8-lub qhov taub (lub qhov taub (lub qhov taub tsib caug. Tus naj npawb ntawm qhov yog sib npaug rau tus pas dej phaus, thiab ntau lub bolts tuaj yeem faib cov thauj khoom thiab tsis txhob muaj kev ntxhov siab. Tsis txaus ntseeg lub qhov (piv txwv li, 4-lub taub ntses rau 60kg / m ntsia hlau) yuav ua rau muaj lub zog rau ntawm cov ntsia liaj qhov rooj (los ntawm cov kabmob ntswj. Ntau dhau lub qhov taub sib txawv (piv txwv li, drilling 26mm lub sijhawm kev sib tw thaum lub sij hawm sib tw ntawm cov pob qij txha, thiab cov kev sib tw ua kom zoo, cuam tshuam rau kev nyab xeeb tsav tsheb.
- Yuav ua li cas los kuaj xyuas qhov haum ntawm FishPLates thiab kev sib tw, cov teeb meem dab tsi yuav haum haum, thiab yuav kho li cas?
During detection, a feeler gauge is inserted into the contact surface between the fishplate and the rail to measure the maximum gap: the gap in straight sections ≤0.2mm, in curve sections ≤0.3mm, and the gap length ≤100mm. Poor fit will cause load concentration at the gap, accelerating local wear of the fishplate (wear depth >3 hli / xyoo), thiab nce kev co kev co, tsa lub log {{rail suab nrov los ntawm 5 - 8 decibels. Txoj kev hloov haum: yog tias cov khoom haum tsis zoo yog tshwm sim los ntawm kev defishilate, hloov nrog tus neeg xam tshiab; Yog tias los ntawm kev sib tw sib txuas tsis sib xws, zom cov tsheb sib txuas nrog lub kaum ntse ntse (flatness tsawg dua los yog sib npaug lossis sib luag ntawm 0.1mm / m tom qab sib tsoo); Yog tias tshwm sim los ntawm xoob bolts, re {{{8} Nyem ntua lub bolts raws li qauv torque (300 · m rau m24 bolts), thiab rov pom qhov haum tom qab rov ua kom nruj.
- Thaum lub ntsia liaj qhov rooj ntawm cov neeg foob lub cev hnav thaum siv thaum siv, lawv yuav tsum tau hloov li cas, thiab yuav kho me ntsis hnav?
After wear, if the hole diameter expands ≤1mm (e.g., a 26mm hole expands to 27mm), it is slight wear. Bolts with increased diameter (e.g., M25 bolts) can be installed, and metal gaskets (thickness 0.5mm) can be filled in the gap between the bolt and the hole to ensure tight fit; if the hole diameter expands >1mm (piv txwv li, 26mm qhov nthuav tawm rau 28mm), cov neeg foob), cov kab mob tsis sib haum xeeb yuav ua rau muaj kev sib zog tsis sib haum xeeb ntawm cov bolts, yooj yim uas ua rau shear bolacture. Ua ntej hloov, sau cov qauv sau cia thiab cov nqaj kev tshwj xeeb kom ntseeg tau cov neeg xam tshiab tshiab yog ua raws li cov qauv qub. Tom qab kev teeb tsa, ntes tus ntsia liaj qhov rooj torque thiab haum, thiab muab tso rau hauv kev siv xwb thaum tau ntsib qhov yuav tsum tau ua.
- Dab tsi yog qhov sib txawv ntawm cov kev sib txuas ntawm cov neeg sau xam cov hom kev sib txawv rau cov kev tsheb ciav hlau sib txawv (hnyav} hault {{
Cov kev tsheb nqaj hlau zoo ib txwm muaj kev sib txuas tsis zoo tshaj lossis sib npaug ntawm 700} {{{{{{{{{{{{{{{{{{{{} haul railways ntau dua los yog sib npaug ntawm 800KS. Txoj Kev Tshawb Xyuas: Kev kuaj Tensile hauv chav kuaj nrog kev foob cov neeg foob nrog cov ciav hlau, thiab sau cov tensile quab yuam ntawm so. Yog hais tias lub zog tawg ntawm dog dig kev tsheb nqaj hlau loj dua los yog sib npaug rau 700 {{{{10} {{ On-site verification can be done through train operation testing, monitoring the displacement of fishplate joints (ordinary railways<=1mm, high-speed<=0.5mm, heavy-haul<=0.8mm). Kev hloov pauv ntau dhau los qhia txog qhov kev sib txuas tsis txaus, xav tau tshuaj xyuas ntawm cov ntsia liaj qhov rooj lossis hloov ntawm cov foob pob.