Cov ntsia P 65: los, hauj lwm, loj

Lub hauv paus ntawm lub Lavxias teb sab railway network li ntsia F 65 - linear tsim ob T-section, uas pab rau lub xaav ntawm loads ntawm kev dov Tshuag, lawv elastic "ua" thiab lub tom ntej hloov lwm lub tsev mus rau lub them nyiaj yug - sleepers. Paub meej ntawm cov "steel beams" tswj GOST 8161-75. Nws tsim cov qauv thiab cov loj ntawm quenched thiab unquenched ntsia thiab kev tsheb nqaj hlau lashes hom R65.

Ntsia 65 F

Tej ntsia yog tsim los daws tau ob peb teeb meem. Ua ntej, lawv tau perceive thiab kis lub tsheb ciav hlau thauj khoom. Nws yog tsim nyog los khaws cia rau lub thiav ntawm ob subgrade thiab log. Ob, lawv qhia tau kev rau lub zog ntawm dov Tshuag. Thiab thaum kawg, lawv tsim ib tug platform nrog lub kawg kam mus rau lub dov ntawm lub log. Tiv tauj nto ua hauj lwm lub ntsiab yog ib tug ob peb centimeters (3-5, nyob ntawm seb cov chav kawm ntawv ntawm txoj kev). Scope ntawm tawm lug sawv cev haum uas nws kim heev. Yog li, lub ntsia R 65, raws li tau zoo raws li R50, R75, siv rau tso ntawm jointless khiav pab neeg tus thawj coj thiab sab gauge. Lawv kuj siv thaum tsim turnouts. Nyob rau hauv lub caij nyoog kawg no cov ntaub ntawv, linear cov khoom uas muaj ib tug hloov profile (RK65).

ntsiab ntawm lub tsheb nqaj hlau

Ntsia R65, raws li zoo raws li tej yam, tsis tau hu ua lub niaj zaus kuv-beam. Kws txawj qhia nyob rau hauv nws tsim ntau yam zwj ceeb qhov chaw:

1. Lub taub hau - nws daim ntawv muab ib tug ruaj ntseg tuav dov log nrog kev tsheb nqaj hlau nws tus kheej.
2. Caj dab - tawv dabtsi yog khoov loads, thiab hau rau lawv mus rau lub kev pab txhawb nqa khiav qauv.
3. Tib - muab stability mus rau tag nrho cov qauv ntawm cov linear muab kev nyuaj siab nyob rau ntawm qhov chaw ntawm lub sleeper. Nws muaj txoj cai thiab sab laug ntawm tus cwj mem.

Tsis tas li ntawd, nyob rau hauv lub ob qhov chaw sib cais rail pov tseg nyob rau sab laug thiab sab xis ntawm lub caj dab thiab occupying qhov chaw ntawm lub qis ntug ntawm lub taub hau mus rau lub midsole. Qhov no thiaj li hu ua laug thiab txoj cai qhov ntswg. Lawv cov txheej txheem ntawm npoo inserts, uas tuav lub ntsia 65 R ntawm ib tug txoj kev nyob rau hauv ib co chaw.

rail ntev P65

Ob peb xav yog vim li cas tsheb nqaj hlau P 65 yog xws li ib daim ntawv. Meanwhile, txhua voos kheej-kheej ntawm curvature, ca cheeb tsam thiab qhov chaw siab tshaj qhia tshwj xeeb uas xaiv empirically los yog los ntawm suav los tsim pom tej yam kev mob rau lub sis raug zoo nrog cov dov Tshuag. Feem ntau ntawm peb paub hais tias ib tug kev tsheb nqaj hlau P 65 hnyav sib npaug zos rau 65 kg, uas yog ua tau tsis yog. Pes tsawg loj ib Meter ntawm 64,72 kg. Lwm tus xaiv muaj cov nram qab lub ntsiab:

• tuag voos kheej-kheej (R500) kom lub Centering ntawm lub load, i.e. rog coincide nrog lub longitudinal axis ntawm kev tsheb nqaj hlau log axle;
• R80 tsim ib tus hloov mus rau R15, uas tsim ib qho intimate kev sib cuag nrog lub duav log;
• kev tsis ncaj ncees taub hau 1:20 sau raws nkaus Ii tus nqes hav ntawm lub log flange uas tsim nyog rau interfacing nrog ib tug Crest ntawm lub log;
• voos kheej-kheej R3 pub muab kwv yees tus ntse ntug ntawm lub taub hau hais tias yog ua los tshem tawm kev nyuaj siab raisers;
• hloov radii R15 thiab R370 nkag tau rau hauv thiaj li yuav xyuas kom meej blending ntawm lub taub hau-caj dab cheeb tsam thiab tshem tawm tej voltages;
• R400 hloov voos kheej-kheej ntawm lub hauv paus ntawm lub ncauj tsev me nyuam yog yuav tsum tau rau tus load hloov lwm lub tsev mus rau lub ib;
• biases lub Upper thiab qis sab ntawm cov tib feem ntawm lub taub hau yog cov tib yam (1: 4), nws yog tsim nyog rau nruab npoo zoo li tus tas, thiab hais tias ib txhij ua raws li lub taub txuas.

Txhua hnub raug enormous loads rail 65. P nws hnyav nyob rau hauv Lavxias teb sab kev lag luam tsis tau underestimated. Tab sis yog hais tias tsis rau ib tug tshwj xeeb tsim, nws yuav tsis tau tiv nrog neeg ua hauj lwm, mus sai sai Warp thiab yuav tsum tau yuav tsum tau hloov.

rail steel

Tag nrho railway ntsia (65 R, RK65, P75, P50) no yog ua los heev dua lwm yam ntawm ib tug kev tsheb nqaj hlau steel. Nws muaj ib tug high dabtsi yog khoov zog, hardness thiab hnav kuj, uas yog tiav los ntawm ib tug siab carbon cov ntsiab lus (0.82%) thiab ntxiv dopants - manganese, vanadium, zirconium, pob zeb ntais, titanium. M76VT - qhov yooj yim hom steel, siv nyob rau hauv qhov siv thiab ua kev tsheb nqaj hlau lashes. Nyob rau cov qauv ntawm cov kev npaj, nws yuav ua tau tus thawj (fusible thiaj tau tuaj nyob rau hauv qhib-hearth furnaces) los yog tus thib ob pab pawg neeg. Cov cam khwb cia los yog laminated "npua" kis complex multistage tshav kub kev kho mob kauj ruam. Lom zem ntau rau qhov no yog vim li cas rau lub tsheb nqaj hlau R 65 tus nqi yog li ntawd siab - 50 txhiab rubles ib tuj ..