Cov Yeeb Nkab Hlau Welded Rau Cov Yeeb Nkab Roj Av Hauv Av
Taw qhia:
Cov kav dej roj av hauv av ua lub luag haujlwm tseem ceeb hauv kev xa cov khoom muaj nqis no mus rau cov tsev, cov lag luam thiab kev lag luam. Txhawm rau kom ntseeg tau tias muaj kev nyab xeeb thiab ua haujlwm tau zoo ntawm cov kav dej no, nws yog ib qho tseem ceeb uas yuav tsum siv cov ntaub ntawv thiab cov txheej txheem vuam kom raug thaum lub sijhawm tsim kho. Peb yuav tshawb nrhiav qhov tseem ceeb ntawm cov yeeb nkab hlau uas tau vuam thiab qhov tseem ceeb ntawm kev ua raws li cov txheej txheem vuam yeeb nkab kom raug thaum ua haujlwm nrogcov kav dej roj av hauv av.
Cov yeeb nkab vuam sib txuas:
Cov yeeb nkab uas vuam ua los ntawm cov kauv yog ib yam khoom siv uas nrov heev rau kev tsim cov kav dej roj av hauv av vim nws muaj zog thiab ruaj khov. Cov yeeb nkab no yog tsim los ntawm kev khoov ib daim hlau txuas ntxiv mus ua ib daim kauv thiab tom qab ntawd vuam nws raws cov seams. Qhov tshwm sim yog cov yeeb nkab uas muaj cov pob qij txha ruaj khov uas tuaj yeem tiv taus cov kev nyuaj siab sab nraud thiab hloov kho rau kev txav mus los hauv av. Cov qauv tshwj xeeb no ua raukauv welded hlau yeeb nkabzoo tagnrho rau cov kav dej hauv av uas qhov kev ruaj khov yog qhov tseem ceeb.
Khoom Siv Kho Tshuab
| Qib A | Qib B | Qib C | Qib D | Qib E | |
| Lub zog tawm los, min, Mpa (KSI) | 330(48) | 415(60) | 415(60) | 415(60) | 445(66) |
| Lub zog tensile, min, Mpa (KSI) | 205(30) | 240(35) | 290(42) | 315(46) | 360(52) |
Cov Tshuaj Lom Zem
| Khoom | Cov khoom xyaw, Max,% | ||||
| Qib A | Qib B | Qib C | Qib D | Qib E | |
| Cov pa roj carbon | 0.25 | 0.26 | 0.28 | 0.30 | 0.30 |
| Manganese | 1.00 | 1.00 | 1.20 | 1.30 | 1.40 |
| Phosphorus | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
| Sulfur | 0.035 | 0.035 | 0.035 | 0.035 | 0.035 |
Kev Ntsuas Hydrostatic
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau kuaj los ntawm tus neeg tsim khoom kom muaj lub zog hydrostatic uas yuav tsim cov kev ntxhov siab hauv phab ntsa yeeb nkab tsis pub tsawg dua 60% ntawm qhov tsawg kawg nkaus ntawm qhov kub thiab txias. Lub zog yuav tsum txiav txim siab los ntawm cov qauv hauv qab no:
P=2St/D
Kev Hloov Pauv Uas Tso Cai Hauv Qhov Hnyav thiab Qhov Ntev
Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau ntsuas nyias thiab nws qhov hnyav yuav tsum tsis txhob hloov ntau tshaj 10% dhau los yog 5.5% qis dua nws qhov hnyav theoretical, xam siv nws qhov ntev thiab nws qhov hnyav ib chav ntev.
Lub sab nraud txoj kab uas hla yuav tsum tsis txhob txawv ntau dua ± 1% ntawm lub nominal sab nraud txoj kab uas hla uas tau teev tseg.
Phab ntsa tuab ntawm txhua qhov chaw yuav tsum tsis pub ntau tshaj 12.5% nyob rau hauv qhov tuab phab ntsa teev tseg.
Ntev
Ib qho ntev random: 16 txog 25ft (4.88 txog 7.62m)
Ob chav random ntev: tshaj 25ft txog 35ft (7.62 txog 10.67m)
Qhov ntev sib xws: kev hloov pauv uas tso cai ± 1in
Xaus
Cov kav dej yuav tsum muaj cov qhov kawg tiaj tus, thiab cov burrs ntawm qhov kawg yuav tsum raug tshem tawm
Thaum lub yeeb nkab kawg tau teev tseg kom yog bevel kawg, lub kaum sab xis yuav tsum yog 30 txog 35 degree
Cov txheej txheem vuam yeeb nkab:
Tsim nyogcov txheej txheem vuam yeeb nkabyog qhov tseem ceeb rau kev ruaj khov thiab kev nyab xeeb ntawm cov kav dej roj av hauv av. Nov yog ob peb yam tseem ceeb uas yuav tsum xav txog:
1. Cov kev tsim nyog ntawm tus kws vuam:Yuav tsum ntiav cov neeg vuam uas tsim nyog thiab muaj kev paub dhau los, kom ntseeg tau tias lawv muaj daim ntawv pov thawj thiab kev txawj ntse tsim nyog los ua cov txheej txheem vuam tshwj xeeb uas xav tau rau cov kav dej roj av. Qhov no pab txo qhov kev pheej hmoo ntawm kev vuam tsis zoo thiab kev xau.
2. Kev npaj thiab kev ntxuav sib koom ua ke:Kev npaj qhov sib koom ua ke kom zoo yog qhov tseem ceeb ua ntej vuam. Qhov no suav nrog kev tshem tawm cov av qias neeg, cov khib nyiab lossis cov pa phem uas yuav cuam tshuam tsis zoo rau kev vuam. Tsis tas li ntawd, kev khoov cov npoo ntawm cov yeeb nkab pab tsim kom muaj qhov sib koom ua ke zoo dua.
3. Cov txheej txheem vuam thiab cov txheej txheem:Yuav tsum ua raws li cov txheej txheem vuam thiab cov kev ntsuas kom raug kom tau txais cov vuam zoo. Cov txheej txheem vuam yuav tsum xav txog cov yam xws li cov yeeb nkab tuab, qhov chaw vuam, cov roj sib xyaw, thiab lwm yam. Nws raug pom zoo kom siv cov txheej txheem vuam tsis siv neeg xws li roj hlau arc vuam (GMAW) lossis submerged arc vuam (SAW) kom ntseeg tau tias muaj txiaj ntsig zoo ib yam thiab txo qhov yuam kev ntawm tib neeg.
4. Kev Tshuaj Xyuas thiab Kev Ntsuas:Kev tshuaj xyuas thiab sim cov vuam kom zoo yog qhov tseem ceeb heev kom paub tseeb tias nws zoo thiab ruaj khov. Cov thev naus laus zis xws li kev sim tsis ua puas tsuaj (NDT), suav nrog X-ray lossis kev sim ultrasonic, tuaj yeem nrhiav pom txhua qhov tsis zoo uas yuav ua rau lub raj xa dej tsis ruaj khov mus ntev.
Xaus lus:
Kev tsim cov kav dej roj av hauv av siv cov yeeb nkab hlau uas vuam ua ke yuav tsum ua raws li cov txheej txheem vuam kav dej kom raug. Los ntawm kev ntiav cov neeg vuam uas tsim nyog, npaj cov pob qij txha kom zoo, ua raws li cov txheej txheem vuam kom raug, thiab ua kev tshuaj xyuas kom meej, peb tuaj yeem ua kom muaj kev nyab xeeb, ruaj khov, thiab ua haujlwm tau zoo ntawm cov kav dej no. Los ntawm kev ua tib zoo saib xyuas cov ntsiab lus hauv cov txheej txheem vuam, peb tuaj yeem xa cov roj av kom tau raws li qhov xav tau ntawm peb cov zej zog thaum tseem muab qhov tseem ceeb rau kev noj qab haus huv ib puag ncig thiab kev nyab xeeb rau pej xeem.
