30. Vim li cas koj kauv welded yeeb nkab xav tau demagnetization? Demagnetization yog dab tsi?

Demagnetization, raws li lub npe qhia, hais txog kev tshem tawm lossis tsis muaj zog magnetic cov khoom siv. Lub hauv paus ntsiab lus hauv kev hloov kho sab hauv ntawm cov khoom sib nqus hauv cov hlau nplaum xws li kev hloov pauv sab nraud xws li kev cuam tshuam, yog li rho tawm lossis tshem tawm cov hlau nplaum. Cov ntaub ntawv sib nqus muaj nyob ntau me me meticicnetic nyob rau uas nws thawj zaug sib nqus sib nqus Magents tsim txhua yam magnetism. Thaum sab nraud yuam kev cuam tshuam rau qhov kev txiav txim no, cov khoom siv lub magnetism ploj zuj zus. Cov laj thawj thawj rau demagnetizing Speed ​​cov txheej txheem muaj xws li siv cov txheej txheem vuam, tshwj xeeb yog tsim ntawm Weld sib koom tes thiab cov chaw xaim vim yog cov dej xaim. Cov liaj teb no ua kom haum nrog cov yeeb nkab lub sijhawm sib nqus. Tom qab vuam, raws li kev sib nqus teb maj mam tsis muaj zog, seem glux tsis muaj zog (feem ntau hu ua ") nyob rau hauv cov yeeb nkab vim muaj kev sib nqus hysteresis. Cov kev cuam tshuam no zoo tsis zoo cuam tshuam ntxiv tom qab vuam los ntawm kev cuam tshuam arc stability thiab txo qis. Demagnetization ua tau zoo tshem tawm lossis tsis muaj zog cov ntawv tshaj tawm no, ua kom pom kev zoo vuam kev ua tau zoo. (2) Ua kom pom cov kev tshuaj xyuas qhov tseeb ntawm Flux kuj cuam tshuam rau kev soj ntsuam qhov tseeb. Piv txwv li, hauv x {- Ray Flucing Imustriers, ua rau "S" {13} zoo li tus distortion. Qhov kev sib txawv no tau pom ntawm ntuj tsis xws luag thiab sloag suav nrog tus nqi tsis xws luag thiab tawg. Yog li ntawd, kom ntseeg tau qhov tseeb ntawm kev tshuaj xyuas cov txiaj ntsig, kev kho mob demagnetization yuav tsum tau rau Kap Steel kav hlau. (3) Cov kev siv cov khoom sib ntsib rau cov roj ntau yam xws li cov roj av thiab roj hauv cov ntawv thov no yog qhov tseem ceeb. Lub xub ntiag ntawm cov chaw sib tw uas muaj kev cuam tshuam cov kev pabcuam ntawm cov kav hlau, xws li txo lawv txoj kev txhim kho corrosion tsis kam thiab nkees ua yeeb yam. Yog li ntawd, kom tau raws li kev siv cov yuav tsum tau ua thiab ua kom muaj kev nyab xeeb ntev thiab kev ntseeg tau yog qhov tsim nyog. (4) Kev tshem tawm kev nyab xeeb hauv qee qhov chaw tshwj xeeb, xws li Magnetism muaj zog ua rau muaj kev phom sij lossis kev ntsuas tsis yog lossis kev ntsuas tsis raug. Piv txwv li, hauv cov cheeb tsam densely populated nrog cov khoom siv hluav taws xob, seem sib cuam tshuam yuav cuam tshuam nrog lawv txoj haujlwm ib txwm; Hauv kev ntsuas ntshav ntsuas cov xwm txheej, seem sib tw yuav ua rau kev ntsuas kev ntsuas. Yog li ntawd, kom tshem tawm cov xwm txheej kev nyab xeeb no thiab kev ntsuas tsis yog, kev kho mob demagnetization yuav tsum tau rau Kap Steel kav hlau. In summary, the main reasons for requiring demagnetization of spiral welded steel pipes include improving welding quality, ensuring inspection accuracy, meeting usage requirements, and eliminating safety hazards. Demagnetization kev kho yog qhov tsis tseem ceeb hauv kev tsim ntawm cov kauv kav hlau welded steel kav, ua lub luag haujlwm tseem ceeb hauv kev ua kom muaj kev ua tau zoo thiab kev ruaj ntseg ntawm cov kav hlau steel.