Cov Yeeb Nkab Hlau Welded: Ib Daim Ntawv Qhia Txog Kev Ua Kom Muaj Kev Sib Txuas Zoo Thiab Txhim Khu Kev
Taw qhia:
Thoob plaws hauv kev lag luam, cov kav hlau siv dav dav rau lawv lub zog, kev ruaj khov, thiab kev hloov pauv tau yooj yim. Thaum koom nrog cov kav hlau, kev vuam yog txoj hauv kev nyiam. Kev vuam tsim cov kev sib txuas muaj zog uas tuaj yeem tiv taus qhov siab siab, ua rau nws tsis tseem ceeb hauv cov haujlwm xws li kev tsim kho, roj thiab roj av, thiab kev tsim khoom. Hauv cov blog no, peb yuav dhia mus rau hauv qhov tseem ceeb ntawm kev vuam cov kav hlau thiab muab cov lus qhia kom ntxaws txog kev ua kom muaj kev sib txuas zoo thiab txhim khu kev qha.
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
1. To taub cov kav hlau:
Cov kav hlauMuaj ntau qhov loj, duab, thiab cov ntaub ntawv sib txawv, txhua yam haum rau cov kev siv tshwj xeeb. Feem ntau lawv yog ua los ntawm cov hlau carbon, hlau tsis xeb, lossis hlau alloy. Cov kav dej hlau carbon yog siv dav vim lawv pheej yig thiab muaj zog, thaum cov kav dej hlau tsis xeb muaj kev tiv thaiv xeb zoo heev. Hauv qhov chaw kub siab, cov kav dej hlau alloy yog qhov zoo dua. Kev nkag siab txog ntau hom kav dej hlau yuav pab txiav txim siab qhov kev xaiv vuam tsim nyog.
2. Xaiv cov txheej txheem vuam:
Muaj ntau yam txheej txheem vuam siv los txuas cov yeeb nkab hlau, suav nrog kev vuam arc, TIG (tungsten inert gas) vuam, MIG (hlau inert gas) vuam, thiab submerged arc vuam. Kev xaiv cov txheej txheem vuam nyob ntawm cov yam xws li hom hlau, txoj kab uas hla ntawm cov yeeb nkab, qhov chaw vuam thiab kev tsim sib koom ua ke. Txhua txoj kev muaj nws cov txiaj ntsig thiab kev txwv, yog li kev xaiv cov txheej txheem tsim nyog tshaj plaws rau daim ntawv thov xav tau yog qhov tseem ceeb heev.
3. Npaj cov yeeb nkab hlau:
Kev npaj cov yeeb nkab kom zoo ua ntej vuam yog qhov tseem ceeb rau kev ua kom muaj qhov sib koom ua ke ruaj khov thiab txhim khu kev qha. Nws suav nrog kev ntxuav qhov saum npoo ntawm cov yeeb nkab kom tshem tawm cov xeb, nplai lossis cov khoom qias neeg. Qhov no tuaj yeem ua tiav los ntawm kev ntxuav tshuab xws li txhuam hlau lossis sib tsoo, lossis los ntawm kev siv cov tshuaj ntxuav tshuaj. Tsis tas li ntawd, kev txiav qhov kawg ntawm cov yeeb nkab tsim ib qho V-zoo li tus groove uas tso cai rau kev nkag mus zoo dua ntawm cov khoom siv filler, yog li ua rau cov txheej txheem vuam yooj yim dua.
4. Kev siv tshuab vuam:
Cov txheej txheem vuam siv cuam tshuam loj heev rau qhov zoo ntawm qhov sib koom ua ke. Nyob ntawm cov txheej txheem vuam siv, cov yam ntxwv tsim nyog xws li tam sim no vuam, voltage, kev mus ncig ceev thiab cua sov nkag yuav tsum tau tswj hwm. Kev txawj thiab kev paub ntawm tus kws vuam kuj ua lub luag haujlwm tseem ceeb hauv kev ua tiav qhov vuam zoo thiab tsis muaj qhov tsis zoo. Cov txheej txheem xws li kev ua haujlwm electrode kom zoo, tswj kom ruaj khov arc, thiab xyuas kom meej tias cov pa roj tiv thaiv txaus tuaj yeem pab txo qhov tsis zoo xws li porosity lossis tsis muaj fusion.
5. Kev tshuaj xyuas tom qab vuam:
Thaum vuam tiav lawm, nws yog ib qho tseem ceeb uas yuav tsum tau ua qhov kev tshuaj xyuas tom qab vuam kom pom cov qhov tsis zoo lossis qhov tsis zoo uas yuav ua rau qhov sib koom ua puas tsuaj. Cov txheej txheem sim tsis ua puas tsuaj xws li kev tshuaj xyuas pom, kev sim xim nkag mus, kev sim cov khoom sib nqus lossis kev sim ultrasonic tuaj yeem siv tau. Cov kev tshuaj xyuas no pab txheeb xyuas cov teeb meem uas yuav tshwm sim thiab xyuas kom meej tias cov pob qij txha vuam ua tau raws li cov lus qhia xav tau.
Xaus lus:
Cov Yeeb Nkab Hlau Rau Vuamyuav tsum tau xav txog kom zoo thiab ua kom raug kom ntseeg tau tias muaj kev sib txuas zoo thiab txhim khu kev qha. Los ntawm kev nkag siab txog ntau hom yeeb nkab hlau, xaiv cov txheej txheem vuam tsim nyog, npaj cov yeeb nkab tag nrho, siv cov txheej txheem vuam tsim nyog, thiab ua cov kev tshuaj xyuas tom qab vuam, koj tuaj yeem ua tiav cov vuam muaj zog thiab zoo. Qhov no pab txhim kho kev nyab xeeb, kev ntseeg siab thiab lub neej ua haujlwm ntawm cov yeeb nkab hlau hauv ntau daim ntawv thov uas lawv yog cov khoom tseem ceeb.
