Hom Hluav Taws Xob Hlau Muaj?

GNEE Steel Hluav Taws Xob Hlau Chev

Grain-oriented hluav taws xob steel (GOES)

Cov txheej txheem tsim tawm GOES yog tsim los ntawm American kws tshawb fawb Norman P Goss hauv xyoo 1930s. Ib daim ntawv ntawm cov hlau yog dov rau hauv ib txoj kev (nrog rau qhov tseem ceeb ntawm qhov txo qis), uas tsim cov noob ntawm cov nplej uas ua raws li cov kev taw qhia ntawm dov. Thaum lub sij hawm tom qab thermal kho thiab rov ua kom crystallization, nplej loj hlob los ntawm cov noob kom txog thaum lawv puv tag nrho ntim.

Txhua lub lis piam yog li ntawd ua raws thiab cov khoom sib nqus tau ua kom tiav raws li qhov kev taw qhia dov, uas tseem hu ua "yooj yim magnetisation". (Magnetisation ntawm 90º rau qhov kev taw qhia no yog "nyuaj" thiab ntawm 60º yog "hardest" - qhov tshwm sim ncaj qha ntawm cov nplej orientation). Qhov no txhais tau hais tias GOES yog qhov muaj txiaj ntsig zoo hauv cov ntawv thov uas qhov sib nqus flux yuav tsum tau coj mus rau hauv ib qho kev taw qhia tshwj xeeb, piv txwv li hauv ib ceg ntawm lub transformer.

GOES feem ntau muaj nyob ib ncig ntawm 96.5% hlau, 3% silicon thiab 0.5% lwm yam. Cov silicon txo qhov poob thiab pab ua kom cov qoob loo loj hlob. Los ntawm qhov sib nqus ntawm qhov pom qhov zoo tshaj plaws ntawm silicon yog qhov tseeb 6.5%, qhov twg qhov poob qis dua, qhov permeability nce mus txog qhov siab tshaj plaws thiab cov hlau tsis pom qhov magnetostriction, uas yog lub ntsiab ua rau lub suab nrov nrov ntawm cov transformers. Txawm li cas los xij, cov hlau nrog 6.5% silicon cov ntsiab lus yog nkig heev uas nws tsis tuaj yeem raug txiav los yog xuas nrig ntaus, yog li nws yuav tsum tau txiav nrog lasers los yog siv lwm yam kev tshwj xeeb. Lwm txoj hauv kev yog txiav cov khoom siv silicon li niaj zaus 3% thiab tom qab ntawd muab nws nrog ntau silicon tom qab txiav.

Ntau xyoo dhau los tau muaj ntau yam kev hloov kho thiab kev txhim kho rau cov txheej txheem tsim khoom rau GOES, ua qhov tseem ceeb tshaj plaws rau kev txo qis los ntawm ib qho ntawm kaum lossis ntau dua. Cov txheej txheem tsim khoom siv tam sim no muaj ntau dua 20 cov kauj ruam, uas txhais tau hais tias GOES yog kim dua li kev tsim steel. Txawm li cas los xij, nws tseem pheej yig dua li lwm cov khoom sib nqus xws li nickel thiab cobalt alloys.

Ib txoj hauv kev uas qhov kev ua haujlwm sib nqus ntawm GOES tau txhim kho yog los ntawm kev sib ntxiv ntawm txheej txheej tshwj xeeb uas ua rau muaj kev ntxhov siab tensile rau ntawm daim ntawv. Qhov no txhim kho cov permeability ntawm GOES thiab txo qhov poob. Qhov tshwm sim yog tias cov hlau tsim nyob rau hauv txoj kev no tuaj yeem ua haujlwm ntawm cov hlau nplaum ntau dua (B) dua li cov qhab nia ntau dua. Cov txheej txheem no feem ntau raug xa mus los ntawm nws lub npe lag luam patented "Hi-B".

Kuj tseem muaj cov kev sim sim ntawm qhov hu ua "ob chav taw qhia" hlau, uas muaj ob qho kev qhia orthogonal "yooj yim", ua tiav los ntawm kev loj hlob zoo. Cov txheej txheem ntau lawm rau qhov no, txawm li cas los xij, txawm tias kim dua thiab cov khoom siv tseem tsis tau pom cov ntawv thov ntim khoom lag luam.

Qhov dav dav dav rau kev lag luam siv GOES yog {{0}}.35 hli (tsawg tshaj), 0.27 hli thiab 0.23 hli (feem ntau kim). Tus nqi feem ntau yog ob peb las US ib kilogram.

Non-oriented hluav taws xob steel (NOES)

Hauv NOES cov nplej me me, feem ntau tsawg dua 0.1 hli. Lawv tsis yog taw qhia raws ib qho kev taw qhia tshwj xeeb. Heev qhov opposite - lawv yuav tsum tau muab faib raws li random li sai tau muab loading symmetry. Qhov no yog vim hais tias NOES yog siv nyob rau hauv cores ntawm rotating machines qhov twg magnetic flux rotates thiab hloov nws txoj hauj lwm txhua lub sij hawm nyob rau hauv lub "cov hniav" ntawm laminations. Cov txheej txheem tsim khoom yog yooj yim dua rau GOES thiab cov hlau yog li pheej yig dua - feem ntau tsawg dua ib nrab ntawm tus nqi.

Vim NOES yog tsim nyob rau hauv cov ntawv tuab (0.35 hli thiab ntau dua) xuas nrig ntaus yog nyuaj dua thiab muaj ntau yam khoom deformations thiab kev ntxhov siab qhia thaum txiav. Qhov no degrades lub magnetic kev ua tau zoo thiab tsis tuaj yeem zam ib txwm zam. Hauv cov xwm txheej no, laminations yuav tsum tau muab tshem tawm tom qab txiav kom txhim kho lawv cov khoom sib nqus. Raws li qhov tshwm sim, NOES muaj nyob rau hauv ob hom tseem ceeb: ua tiav uas tsis tas yuav rov ua dua, thiab ib nrab ua tiav rau qhov kev kho cua sov kawg yog qhov tsim nyog.

Lwm qhov tseem ceeb yog cov ntsiab lus ntawm silicon. Qhov sib ntxiv ntawm silicon me ntsis txo qhov saturation magnetisation. Qhov no yog ib qho tseem ceeb nyob rau hauv rotating tshuab, nyob rau hauv uas cov hniav yuav ua hauj lwm nyob rau hauv saturated tej yam kev mob. Cov neeg kho tshuab torque ntawm rotating tshuab yog proportional rau lub square ntawm magnetisation yog li txawm ib tug me me kev txhim kho nyob rau hauv magnetisation yog justified rau lub resulting loj nce nyob rau hauv torque. Vim li no, thaum kho tshuab ua haujlwm tseem ceeb, cov ntsiab lus silicon feem ntau raug txo kom qis dua (qee zaum txawm qis dua 0.5%). Qhov no txhim kho lub zog torque, tab sis tau kawg ua rau ntau dua eddy tam sim no poob, uas tsuas yog txo tau los ntawm kev txo cov thickness ntawm cov laminations siv.

NOES feem ntau yog siv rau me me pheej yig transformers rau cov khoom siv hauv tsev, qhov twg tus nqi ntawm cov cuab yeej yog qhov tseem ceeb.