Cov khoom siv feem ntau siv rau GB Crane cov hlua yog feem ntau U71MN, U75V, thiab lwm yam hauv qab no yog kev txheeb xyuas kev sib piv ntawm lawv:
Tshuaj Muaj Tshuaj
U71mn:Cov pa roj carbon (c) Cov ntsiab lus feem ntau 0. 65% {2} {{{{{- 1. 50%. Cov ntsiab lus manganese ntau dua tuaj yeem txhim kho lub zog thiab hnav tsis kam ntawm cov hlau, thiab cov pa roj carbon ntau ua kom muaj zog ntawm txoj kev tsheb nqaj hlau.
U75V: Cov ntsiab lus carbon yog hais txog {{{0}}. 12%, thiab nws tseem muaj cov khoom silicon (si), manganese thiab lwm yam. Qhov sib ntxiv ntawm vanadium tuaj yeem kho cov nplej zom thiab txhim kho lub zog, kev nruj thiab hnav tsis kam ntawm cov hlau.
Cov Khoom Siv Neeg Kho Tshuab
U71mn:
Lub zog siab, lub zog tensile feem ntau tuaj yeem ncav cuag ntau dua 900Mpa, thiab tuaj yeem tiv thaiv loj loj thaum lub sijhawm ua haujlwm loj.
Nws muaj kev coj zoo tsis kam, tuaj yeem tswj cov npoo zoo tiav hauv qab ntau lub log luv luv, thiab txuas ntxiv cov kev pabcuam lub neej ntawm kev tsheb nqaj hlau.
It has relatively good toughness, can withstand a certain degree of impact load, and reduce the risk of rail breakage caused by impact.
U75V:
Lub zog tensile feem ntau yog tshaj 950mpa - 1000 MPa, thiab cov txiaj ntsig lub zog tuaj yeem hu mus rau saum toj kawg nkaus 600MPA. Lub zog yog qhov zoo dua li U71MN, thiab nws tuaj yeem hloov kho kom cranes nrog lub nra hnyav.
Vim muaj cov nyhuv ntawm vanadium, nws cov coj tsis kam yog qhov zoo dua li U71MN. Hauv kev siv mus ntev, nws tuaj yeem ua tau zoo dua qub saib cov duab thiab sab qhov tseeb ntawm txoj kev thiab txo tus nqi kho.
Nws muaj cov khoom muaj zog zoo, uas yog sib npaug lossis me ntsis zoo dua U71MN. Nws ua tau zoo thaum raug tsim kom muaj kev cuam tshuam loads thiab tuaj yeem tiv thaiv brittle backstre ntawm kev tsheb nqaj hlau.
Kev ua tau zoo
U71mn:
Nws muaj kev ua haujlwm zoo. Hauv kev ua haujlwm kub xws li dov thiab zam, nws qhia zoo heev thiab yog ib qho yooj yim los ua.
Kev ua Vuam ua tau zoo. Nrog rau cov txheej txheem vuam tsim nyog thiab cov ntaub ntawv vuam, cov khoom lag luam zoo nkauj vuam tuaj yeem tau txais, uas yooj yim rau cov chaw teeb tsa thiab saib xyuas.
U75V:
Cov kev ua yeeb kub ua tau zoo. Txawm hais tias nws kev ua nyuaj me ntsis dua U71MN vim muaj vanadium, nws tseem tuaj yeem ua tau raws li qhov yuav tsum tau ua kev lag luam.
Kev ua haujlwm vuam kuj tseem ua tau zoo, tab sis nws yog ib qho tsim nyog kom tswj cov kev ua haujlwm vuam los tiv thaiv kev hlawv ntawm vanadium cov khoom thiab cov kab nrib pleb hauv pob qij tw welded.
Corrosion Kuj
U71mn:Cov corrosion tsis kam yog dav dav. Hauv kev xeb ib puag ncig xws li ya raws, kua qaub thiab alkali, nws yog ib qho yooj yim rau xeb. Kev ntsuas kev tiv thaiv kev tsim kho corrosion xws li pleev xim thiab galvanizing yuav tsum muaj.
U75V: Lub corrosion tsis kam yog zoo li ntawm U71MN. Nws tuaj yeem ua tau raws li kev siv cov cai hauv ib puag ncig, tab sis nws tseem xav tau kev kho mob hauv txoj kev muaj kev nyuaj siab. Txawm li cas los xij, vim nws lub zog siab thiab coj kev ua tau zoo ntawm U75V ntsia yog zoo dua hauv qee qhov chaw uas hnav ua haujlwm ua ke.
Daim Ntawv Thov Kev Pab Cuam
U71mn:Haum rau Crane rail nyob rau hauv dav dav dav dav, xws li rhiav rhiav cranes, thiab lwm yam yuav tsum ua tau raws li cov cranes uas feem ntau, thiab tus nqi yog tsawg.
U75V: Ntau tsim nyog rau cranes nrog cov kev ua haujlwm hnyav thiab cov khoom lag luam loj, hnav tsis kam thiab cov haujlwm ua haujlwm tau zoo thiab cov haujlwm ua haujlwm nyuaj.