Q275B yog ib qib carbon qauv qauv hlau hauv qab Suav GB / T Txuj (GB / T 700). Qhov "Q" txhais tau nws cov txiaj ntsig lub zog (QIáángdù), "B" qhia txog nws cov kev cuam tshuam zoo, muaj qee yam kev cuam tshuam nyuaj ntawm chav (20 degree). Cov kav dej ua los ntawm Q275B yog ib txwm tsim ua welded steel kav ({10} {{}} lub zog applications.
I. Cov ntawv thov tseem ceeb thiab siv
Q275B hlau kav hlau tau siv dav hauv ntau cov ntawv thiab cov ntawv thov kho tshuab uas muaj zog tshaj Q235 yuav tsum muaj. Daim ntawv thov tseem ceeb muaj cov chaw muaj:
Cov qauv kev tsim qauv thiab kev tsim kho:
Lub tsev qauv:Siv rau lub tsev lag luam, chaw ua lag luam, thiab cov lag luam ua lag luam, xws li kab, kab teeb, thiab trusses.
Cov Cheebtsam Txhawb Nqa:Qhov zoo tagnrho rau kev ua hnyav {{0} Lub luag haujlwm} cov luag haujlwm khaws cia rack tshuab, kev txhawb nqa kev tsim kho, thiab platform.
NEEG KHO TSHUAB RAUG THIAB COV KHOOM SIV HAVES:
Qhov chaw thiab Cheebtsam:Haum rau kev tsim khoom lag luam uas yuav tsum muaj lub zog zoo thiab cov ntawv sib dhos, thiab ib nrab rau cov khoom siv ua liaj ua teb, thiab lwm yam khoom siv.
Khoom siv:Siv nyob rau hauv zus tau tej yam ntawm conveyor cov menyuam cov kav dej thiab lwm yam khoom tuav system Cheebtsam.
Cov Cuab Yeej Siv Hluav Taws Xob Thiab Cov Tshuab Engineering:
Lub Hom Phiaj Qauv Qauv:Siv rau hauv cov choj, kev hloov cov yees, thiab lwm yam haujlwm ntawm cov txheej txheem uas tsis tas yuav muaj lub zog tshaj plaws.
Laj kab thiab cov neeg ua haujlwm tshuab hluav taws xob:Ua haujlwm rau hnyav {- Works Works WalkSrets uas cuam tshuam qhov cuam tshuam yog qhov tseem ceeb.
Dej Sib Kis:Yuav siv tau rau qhov tsawg rau nruab nrab -}} dej siab tsis muaj kua roj pipelines (piv txwv li huab cua, tom qab cov qauv yeeb cov yeeb yaj xwm.
Ii. Cov Ntsiab Lus Zoo thiab Cov Kev Pab
Cov koob meej ntawm Q275B cov kav hlau steel hlau los ntawm lawv qhov kev ua tau zoo thiab kev lag luam zoo:
Zoo zog - rau -} tus nqi piv:Q275B muaj ib qho tseem ceeb 17% nce ntxiv rau cov paib muaj zog piv rau cov neeg siv dav Q235 (275 MPa vs {}} mpa mpa). Qhov no tso cai rau kev txo phaus hauv cov qauv lossis nce ntxiv hauv load - cov xeeb ntxwv nce ntxiv.
Zoo weldability thiab txheej txheem:Raws li qhov qis - hlau steel, q275b muaj wallity weldability zoo. Nws tuaj yeem yooj yim welded siv cov kev sib txawv xws li arc vuam thiab roj vuam. Nws tseem muaj cov machinability zoo, suav nrog txiav, khoov, thiab xuas nrig ntaus.
Txhim khu kev qha cov tshuab hluav taws xob:Lub "B" qib B "zoo ua kom muaj qee theem ntawm kev cuam tshuam nyuaj ntawm chav tsev thiab dynamic loads piv rau QU235A.
Kev muaj ntau yam thiab tus nqi - ua tau zoo:Cov khoom siv raw rau Q275B tau npaj tau yooj yim, thiab kev tsim khoom tsim rau Q275B kav (tshwj xeeb yog welded kav) yog paub tab thiab txuag. Qhov no ua rau nws xaiv tau nyiaj ntau heev rau ntau txoj haujlwm.
III. Kev tsim kho yav tom ntej thiab tiam sis
Lub neej yav tom ntej ntawm Q275B cov kav hlau steel yog interttwined nrog dav dav dav hauv cov hlau thiab kev tsim kho cov lag luam:
Kev ua lag luam txoj hauj lwm thiab xav tau:Q275B tseem yuav txuas ntxiv tuav lub chaw ua lag luam ruaj khov qhia raws li lub midary mid {{1 muaj cov qauv hluav taws xob qauv hlau. Nws cov kev thov tau sib txuas nrog cov txheej txheem kev tsim kho, kev tsim kho hauv nroog, thiab tsim cov haujlwm hauv kev ua lag luam tawm, tshwj xeeb hauv Asia thiab Africa.
Hloov mus rau ntsuab thiab muaj kev tsim khoom lag luam:Kev tsim cov Q275B yuav ua kom pom tseeb ntawm kev txuag hluav taws xob, kev kho kom raug, thiab ib txwm ua raws. Qhov no suav nrog kev yuav ua kom tau ntau dua thev naus laus zis thiab siv cov hlau ua dua tshiab raws li cov khoom siv raw.
Cov khoom lag luam thiab ua tau zoo dua:Raws li kev lag luam kev ua lag luam thoob ntiaj teb loj hlob, sib haum xeeb ntawm Suav GB tus qauv thiab cov qauv thoob ntiaj teb (zoo li ASTM, en) tseem ceeb. Cov neeg tsim khoom yuav tsom mus rau qhov sib txawv tiag tiag, txhim kho cov khoom muaj txiaj ntsig zoo, thiab ntau yam zoo sib xws kom tau raws li cov neeg siv khoom siab dua.
Kev sib tw los ntawm high - lub zog lwm txoj kev:Hauv lub sijhawm ntev, Q275B yuav ntsib maj mam hloov chaw los ntawm siab dua- lub zog hlau (piv txwv li, Q355 series) hauv qee cov ntawv thov. Qhov no yog tsav los ntawm cov qauv rau kev tsim khaub ncaws hnyav. Txawm li cas los xij, Q275B yuav nyob twj ywm qhov kev xaiv uas nyiam dua rau tus nqi- Cov phiaj xwm cov phiaj xwm uas nws lub zog txaus.
Kev loj hlob ntawm tus nqi -}}} Cov Khoom Ntxiv:Txhawm rau kom muaj kev sib tw, cov neeg tsim khoom tuaj yeem tsim muaj txiaj ntsig {}} galvanized ua ntej - fabriccemic rau kev lag luam tshwj xeeb.
Tag
Hauv cov ntsiab lus, Q275B steel yeeb nkab yog ib qho ntau yam, kev lag luam, thiab txhim khu kev qha ntawm lub luag haujlwm tseem ceeb hauv kev tsim kho, thiab dav dav tshuab. Nws lub zog sib luag, cov txheej txheem zoo, thiab tus nqi- ua rau nws txuas ntxiv. Thaum nws yuav hloov mus rau yav tom ntej cov ncauj lus hauv kev ruaj khov thiab qhov zoo, nws cov tswv yim muaj nuj nqis ua rau nws muaj kev txhim kho lub tsev rau kev lag luam thiab kev txhim kho kev tsim kho rau xyoo tom ntej.
