Longitudinally welded steel kav yog ib hom steel yeeb nkab nrog welds parallel mus rau longitudinal kev taw qhia ntawm cov yeeb nkab. Lawv feem ntau muab faib ua metric hluav taws xob welded steel kav, hluav taws xob welded nyias-walled kav, transformer txias roj kav, thiab lwm yam. Cov txheej txheem ntawm longitudinally welded steel kav yog yooj yim, nrog high efficiency efficiency, tsis tshua muaj nqi, thiab kev loj hlob sai. Txawm hais tias kauv welded kav feem ntau muaj lub zog siab dua li cov kav ntev ntev, cov kav dej loj dua tuaj yeem tsim los ntawm cov kab nqaim, thiab cov kav dej sib txawv tuaj yeem tsim tau siv tib lub dav dav. Txawm li cas los xij, piv rau cov kav ntev ntev ntawm tib qhov ntev, qhov ntev ntawm qhov vuam nce 30% thiab 100%, feem, ua rau qeeb qeeb qeeb.
Vuam zaus
High-frequency (HF) tam sim no cuam tshuam qhov sib xws ntawm kev faib tawm tam sim no hauv cov hlau phaj. Thaum xaiv HF vuam zaus, ob qho tib si qhov kub nkag qhov tob thiab qhov sib thooj yuav tsum tau txiav txim siab. Feem ntau, nce qhov zaus tam sim no kom tsim nyog tuaj yeem txuag hluav taws xob, txhim kho qhov zoo ntawm vuam, thiab txo qhov loj ntawm thaj tsam kub ntxhov (HAZ). Nyob rau hauv cov nqe lus ntawm welding efficiency, siab dua frequencies yog nyiam. Piv txwv li, HF tam sim no ntawm 100kHz tuaj yeem nkag mus rau 0.1mm rau hauv cov hlau ferritic, thaum 400kHz tuaj yeem nkag mus tsuas yog 0.04mm, lub ntsiab lus tam sim no qhov ntom ntom ntawm cov phaj hlau yog ze li ntawm 2.5 npaug siab dua. rau tom kawg.
Hauv kev xyaum ntau lawm, ntau zaus ntawm 350450kHz feem ntau yog xaiv rau vuam cov ntaub ntawv carbon steel. Rau vuam alloy steel cov ntaub ntawv nrog thicknesses tshaj 10 hli, ib zaus ntawm 50150kHz yuav raug saws vim cov tawv nqaij sib txawv los ntawm cov ntsiab xws li chromium, zinc, tooj liab, thiab txhuas nyob rau hauv alloy hlau.
Vuam fais fab
Cov cua kub tsis txaus ntawm cov yeeb nkab billet zawj vim lub zog qis tuaj yeem ua rau cov vuam tsis xws li kev ua tiav fusion, detachment, thiab suav nrog. Ntawm qhov tod tes, lub zog ntau dhau cuam tshuam rau vuam kev ruaj ntseg, ua rau cov cua kub ntawm cov yeeb nkab billet zawj kom dhau qhov yuav tsum tau vuam kub, ua rau muaj kev sib tsoo hnyav, pinholes, slag suav nrog, thiab lwm yam tsis xws luag hu ua overburning defects. Lub zog tawm tswv yim thaum HF vuam yuav tsum tau kho raws li cov yeeb nkab phab ntsa thickness thiab sib sau ceev. Cov txheej txheem sib txawv, kev teeb tsa cov cuab yeej, thiab qib steel xav tau kev ua kom zoo dua los ntawm kev sim ua haujlwm.
Ntxiv rau qhov saum toj no, vuam ceev, vuam txoj kev, vuam extrusion quab yuam, thiab kev siv cov impedance pab kiag li lawm kuj tseem ceeb heev nyob rau hauv kev tswj qhov zoo ntawm HF welded kav. Mastering cov kev tswj kom zoo yog qhov tseem ceeb rau kev tsim cov khoom zoo.
