Txhim Kho Cov Qauv Txheej Txheem: Muab Kauv Welded Carbon Steel Yeeb Nkab Ua Hlau Yeeb Nkab Vuam Txheej Txheem
Ntsib thawj zaug
Kos duab ntawmHlau Yeeb Nkab VuamYuav tsum muaj kev sib raug zoo sib xyaw ua ke, cov ntaub ntawv zoo thiab cov khoom zoo los xyuas cov qauv qauv kev ncaj ncees rau ntau cov ntawv thov. Ntawm ntau hom yeeb nkab, muab kauv welded carbon hlau yeeb, xws li x42 ssaw yeeb nkab, yog nrov rau nws lub zog zoo dua qub, ruaj khov thiab nqi-ua hauj lwm zoo. Hauv cov blog no, peb yuav tshawb txog qhov tseem ceeb ntawm cov kab mob welded steels, cais tawm mus rau hauv nws cov txheej txheem tsim khoom, qhov zoo thiab cov chaw thov.
Cov Cuab Yeej Cuab Yeej Cuab Yeej
qib hlau | Yam tsawg kawg nkaus xwb Zog | Lub zog tensile | Yam tsawg kawg nkaus elongation | Yam tsawg kawg nkaus cuam tshuam lub zog | ||||
MPa | % | J | ||||||
Teev cov tuab | Teev cov tuab | Teev cov tuab | Ntawm sim ntsuas qhov kub ntawm | |||||
mm | mm | mm | ||||||
<16 | > 1605 | <3 | ≥40 | I≤40 | -20 ℃ | 0 ℃ | 20 ℃ | |
S235jrh | 235 | 22 | 360-510 | 360-510 | 24 | - | - | 27 |
S275j0h | 275 | 26 | 430-580 | 410-560 | 20 | - | 27 | - |
S275j2h | 27 | - | - | |||||
S355j0h | 365 | 345 | 510-680 | 470-630 | 20 | - | 27 | - |
S355j2h | 27 | - | - | |||||
S355k2h | 40 | - | - |
Tshuaj Muaj Tshuaj
Qib hlau | Hom de-oxidation a | % los ntawm huab hwm coj, siab tshaj plaws | ||||||
Hlau Npe Hlau | Hlau tooj | C | C | Si | Mn | P | S | Nb |
S235jrh | 1.0039 | FF | 0,17 | - | 1,40 | 0,040 | 0,040 | 0.009 |
S275j0h | 1.0149 | FF | 0,20 | - | 1,50 | 0,035 | 0,035 | 0,009 |
S275j2h | 1.0138 | FF | 0,20 | - | 1,50 | 0,030 | 0,030 | - |
S355j0h | 1.0547 | FF | 0,22 | 0,55 | 1,60 | 0,035 | 0,035 | 0,009 |
S355j2h | 1.0576 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
S355k2h | 1.0512 | FF | 0,22 | 0,55 | 1,60 | 0,030 | 0,030 | - |
a. Cov txheej txheem Deagidation yog tsim raws li hauv qab no: | ||||||||
FF: Nkaus tua cov hlau uas muaj cov khoom siv nitrogen khi rau hauv cov nyiaj muaj peev xwm khi muaj nitrogen (piv txwv li min lossis 0,015% soluble al). | ||||||||
b. Tus nqi siab tshaj plaws rau Nitrogen tsis siv yog tias cov tshuaj lom neeg muaj pes tsawg leeg ntawm 0,020% nrog tsawg kawg AL / N piv txog 2: 1, lossis yog tias muaj lwm cov n-khi cov khoom n-khi tam sim no. Cov n-khi cov ntsiab yuav tsum tau sau cia hauv daim ntawv tshuaj xyuas. |
Cov txheej txheem tsim khoom
Muab kauv cov yeeb nkab welded, tseem hu ua ssaw (kauv subawmerged arc welded) yeeb nkab, yog tsim los siv kauv txoj kev thiab tog arc vuam. Cov txheej txheem pib nrog ntug kev kho ntawm cov coiled steel sawb thiab tom qab ntawd khoov cov sawb mus ua ib qho kev kauv. Tsis siv neeg tog Txoj kev no ua kom ntseeg tau tias kev sib koom ua ke yog cov muaj zog thiab ruaj khov thaum tsis zoo thiab tswj cov txheej txheem kev ntseeg siab.
Qhov Zoo Ntawm Cov Ncauj Welded Carbon Steel Yeeb Nkab
1. Lub zog thiab durability:Muab Kauv Welded Carbon Steel Yeeb NkabYog paub rau nws lub zog zoo dua thiab kav ntev, ua nws haum rau cov ntawv thov kev tiv thaiv kev ntxhov siab thiab kev ua tau zoo ntev.
2. Nqi-ua hauj lwm: cov kav dej no muab cov txheej txheem tsim txiaj tau zoo tshaj plaws, thiab txo cov khoom siv raw piv rau lwm hom kav dej.
3
4. Dosensal qhov tseeb: Tus kauv tsim txoj kev tuaj yeem tswj qhov loj me thiab phab ntsa tuab ntawm cov yeeb nkab, kom ntseeg tau qhov tseeb thiab kev sib txuam ntawm kev tsim khoom.
Chaw thov
1. Roj thiab roj kev lag luam thiab cov khoom siv hluav taws xob: Muab cov khoom thauj khoom hauv cov roj thiab roj kev lag luam, cov roj nkev thiab roj av thiab roj av. Lawv lub zog thiab muaj peev xwm tiv taus cov khoom lag luam siab ua rau lawv zoo tagnrho rau cov kav ntev.
2. Dej kis tau: Txawm hais tias rau kev siv dej hauv nroog lossis muab kauv tsis kam ua rau lawv txoj kev txhim kho corrosion, lub zog thiab yooj yim ntawm kev teeb tsa.
3. Cov qauv kev txhawb nqa: Cov yeeb nkab no yog siv dav hauv kev tsim kho cov vaj tse, txuas hniav, docks thiab lwm yam phiaj xwm infrastructure. Lawv lub durability thiab tawm tsam rau sab nraud cov khoom ua rau lawv txhim khu kev qha hauv cov ntawv thov.
4. Muaj cov ntawv thov: Muab kauv welded carbon stores yog siv nyob rau hauv ntau yam tshuaj lom neeg siv tshuaj lom neeg vim lawv lub peev xwm los lis kev kub siab, kev ntsuas thiab kev ua kom haum.
Hauv kev xaus
Muab kauv welded carbon hlau yeeb nkab, xws liX42 ssaw cov yeeb nkab, tau hloov kho cov txheej txheem hlau yeeb nkab, nqa ntau cov txiaj ntsig rau kev lag luam sib txawv. Lawv lub zog, durability, nqi-txiaj ntsig zoo thiab sab yog qhov tseeb kom cov qauv txheej txheem hauv ntau cov ntawv thov. Muaj peev xwm tiv taus ntau qhov kev ntsuas siab, ntsuas kub thiab kev ua kom haum rau cov roj thiab roj kev sib kis tau, khoom siv dej thiab lwm yam muaj cov lis haujlwm. Yog li ntawd, thaum nws los txog rau cov hlau yeeb nkab welding, kev siv cov kauv welded carbon hlau kav tseem yog ib txoj kev ntseeg siab thiab txuag tau ntev ntev thiab resilient infrastructure ntev.
Hydrostatic Kev Ntsuam Xyuas
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum raug sim los ntawm cov khw mus rau lub tshuab cua hydostatic Lub siab yuav tsum txiav txim siab los ntawm kab sib luag hauv qab no:
P = 2st / d
Kev tso cai sib txawv hauv qhov hnyav thiab qhov ntev
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau ua kom muaj nyias thiab nws qhov hnyav yuav tsis sib txawv ntau dua 10% dhau los yog 5.5% raws li nws qhov ntev thiab siv qhov hnyav thiab nws qhov hnyav rau ib ntu ntev
Sab nraud ntawm lub cheeb tsam yuav tsis sib txawv ntau dua ± 1% los ntawm cov kev cai tshwj xeeb sab nraud ntawm lub taub
Phab Ntsa Thickness ntawm txhua qhov taw tes yuav tsum tsis ntau tshaj 12.5% nyob rau hauv lub phab ntsa teev