DNV hlau
Cov Khoom Piav Qhia "DNV A Steel" yog hais txog qib tshwj xeeb ntawm cov hlau uas ua raws li cov lus qhia ntawm Det Norske Veritas (DNV). DNV yog ib lub tuam txhab muaj ntawv pov thawj thiab cov kev qhia tshwj xeeb hauv kev tsim cov nkoj thiab nkoj nkoj. Daim ntawv pov thawj ntawm steel los ntawm DNV ...
Hauj lwm lawm
Khoom Description
"DNV A Steel" yog hais txog qib tshwj xeeb ntawm cov hlau uas ua raws li cov lus qhia ntawm Det Norske Veritas (DNV). DNV yog ib lub tuam txhab muaj ntawv pov thawj thiab cov kev qhia tshwj xeeb hauv kev tsim cov nkoj thiab nkoj nkoj. Cov ntawv pov thawj ntawm cov hlau los ntawm DNV feem ntau suav nrog kev soj ntsuam nruj thiab kev sim ntawm nws ntau yam kev ua tau zoo thiab cov yam ntxwv zoo.
Feem ntau hais lus, DNV Qib A steel tej zaum yuav muaj cov yam ntxwv hauv qab no:
Lub zog siab: Nws tuaj yeem tiv taus kev ntxhov siab loj thiab thauj khoom thiab tsim nyog rau qhov chaw ntawm cov qauv nkoj uas xav tau kom muaj kev ntxhov siab ntau, xws li cov thav duab thiab keel ntawm lub nkoj, uas pab ua kom tag nrho cov qauv muaj zog thiab ruaj khov ntawm lub nkoj.
Zoo toughness: Thaum muaj kev cuam tshuam los yog dynamic loads, nws tsis yooj yim rau brittle puas. Hloov chaw, nws tuaj yeem nqus tau lub zog los ntawm qee qhov kev deformation. Qhov no yog qhov tseem ceeb tshaj plaws rau ntau yam xwm txheej uas cov nkoj yuav ntsib thaum lub sijhawm navigation, xws li kev cuam tshuam yoj thiab kev sib tsoo. Nws tuaj yeem tiv thaiv qhov tshwm sim loj tshwm sim los ntawm kev tawg sai sai ntawm cov hlau.
Weldability zoo heev: Nws yog qhov yooj yim rau ntau yam kev lag luam vuam thaum lub sij hawm tsim nkoj, thiab cov pob qij txha welded tuaj yeem tuav lub zog zoo thiab tawv, ua kom muaj kev ntseeg siab ntawm welds. Qhov no yog qhov tseem ceeb heev rau kev tsim cov qauv ntawm cov nkoj loj.
Zoo corrosion kuj zoo: nyob rau hauv marine ib puag ncig, hlau yog yooj yim corroded los ntawm seawater, ntsev tsuag, thiab lwm yam. DNV Qib A steel tej zaum yuav muaj ib tug tej yam kev mob ntawm corrosion kuj, los yog los ntawm tsim nyog nto kev kho mob thiab kev tiv thaiv kev ntsuas, nws muaj peev xwm tiv taus yaig ntawm marine ib puag ncig rau ib qho twg, ua kom lub neej ntev ntawm cov hlau thiab kev txij nkawm ntawm cov nkoj.
Kev tswj xyuas nruj nruj: Ua raws li DNV cov lus qhia tshwj xeeb txhais tau tias cov hlau tau dhau los ua kev soj ntsuam nruj thiab tswj xyuas thaum lub sijhawm tsim khoom. Nyob rau hauv cov nqe lus ntawm cov tshuaj muaj pes tsawg leeg, mechanical zog, dimensional precision, thiab lwm yam., nws ua tau raws li cov qauv thiab cov kev cai, yog li ua kom muaj kev ruaj ntseg thiab kev ntseeg siab ntawm steel kev ua tau zoo thiab txo cov kev pheej hmoo ntawm kev tsim kho thiab muaj peev xwm muaj kev nyab xeeb thaum siv tom qab siv los ntawm cov teeb meem zoo steel.
Tshuaj muaj pes tsawg leeg
|
Lub ntsiab |
% Tam sim no (hauv daim ntawv khoom) |
|
Cov pa roj carbon (C) |
0.20 |
|
Silicon (Si) |
1.50 - 2.50 |
|
Manganese (Mn) |
2.00 |
|
Phosphorus (P) |
0.045 |
|
Sulfur (S) |
0.015 |
|
Chromium (Cr) |
24.00 - 26.00 |
|
Nickel (Ni) |
19.00 - 22.00 |
|
Nitrogen (N) |
0.11 |
|
Hlau (Fe) |
Tshuav |
Ntau hom nkoj thiab kev siv ib puag ncig yuav muaj qhov sib txawv tshwj xeeb rau kev ua haujlwm ntawm cov hlau, thiab DNV Qib A steel yuav raug tsim thiab ua kom zoo raws li cov kev xav tau los xyuas kom meej tias nws siv tau thiab kev nyab xeeb hauv nkoj tsim thiab siv. Hauv kev siv cov tswv yim, cov neeg tsim qauv nkoj thiab cov neeg tsim khoom yuav xaiv cov qib tsim nyog thiab hom DNV steel raws li cov phiaj xwm tshwj xeeb thiab cov qauv tsim tshwj xeeb.
Vim li cas thiaj xaiv peb?
Peb txaus siab rau peb lub peev xwm los muab cov kev cai daws teeb meem rau peb cov neeg siv khoom cov kev xav tau tshwj xeeb.
Peb txheeb xyuas thiab sib piv cov khoom dhau los thiab cov xwm txheej tam sim no ntawm peb DNV A Steel, thiab tsim cov txheej txheem tshiab thiab cov txheej txheem.
Peb cov neeg siv khoom ntseeg peb kom xa cov khoom zoo Cold-rolled Steel khoom raws sij hawm thiab ntawm pob nyiaj siv.
Peb nruj me ntsis siv cov kev pab cuam sov so thiab kev xav tom qab muag, ua raws li kev txhim kho kev ua haujlwm zoo.
Peb muab ntau hom Cold-rolled Steel khoom kom tau raws li cov neeg siv khoom xav tau.
Peb ua raws li cov neeg siv khoom-centric thiab hom-taw qhia kev lag luam lub tswv yim, thiab txuas ntxiv muab cov neeg siv khoom lag luam txhim khu kev qha thiab zoo heev thiab cov kev pabcuam.
Peb lub Hoobkas tau cog lus los txhawb nqa cov qauv siab tshaj plaws ntawm kev nyab xeeb thiab zoo.
Txhua tus neeg ua haujlwm ntawm peb lub tuam txhab thiab txhua lub tuam haujlwm ua haujlwm ua ke los ua ke kev tswj hwm kev lag luam, kev tshaj lij thev naus laus zis, kev txheeb cais ntau thiab kev kawm ideological.
Peb cov khoom siv Cold-rolled Steel paub txog lawv cov kav ntev thiab kev ntseeg tau.
Kev vam khom rau qhov zoo tshaj plaws thiab muaj txiaj ntsig zoo ntawm cov khoom loj, peb muaj peev xwm ua tau raws li qhov sib txawv ntawm peb cov neeg siv khoom.
Cim npe nrov: dnv steel, Tuam Tshoj dnv a steel lwm tus neeg, hoobkas
