Silicon steel kev ua tau zoo yuav tsum tau thiab Smelting cov ntsiab lus

GNEE Steel Oriented Silicon hlau

Silicon steel, tseem hu uahluav taws xob silicon steel, yog ib hom hlau alloy uas feem ntau siv los tsim ntau yam khoom siv hlau nplaum vim nws cov khoom tshwj xeeb. Nws yog ib hom hlau uas muaj qhov tswj tau ntawm silicon, feem ntau ntawm 0.2% thiab 4.5% los ntawm qhov hnyav. Siv cov ntsiab lus alloying tshwj xeeb xws li tooj liab thiab txhuas, silicon steel tuaj yeem ua rau ntau qib nyob ntawm qhov xav tau cov khoom sib nqus uas xav tau. Silicon steel muaj ntau hom nplej, uas ib feem yog tsim los ntawm ferrite thiab lwm cov hlau carbides uas nce hluav taws xob tiv taus li ntawm 10%. Nws yog cov khoom siv anisotropic nrog ntau dua saturation flux density tiav thaum muab tso rau hauv magnetic teb perpendicular mus rau dov kev taw qhia. Cov cuab yeej no feem ntau ua rau nws yog cov khoom siv tseem ceeb rau lub zog thiab kev faib hluav taws xob hloov pauv nrog rau tshwj xeeb AC motors.

Silicon steel muaj cov khoom sib nqus zoo heev vim muaj cov silicon thiab lwm yam alloying ntsiab lus uas pab txhawb kev tsim kom muaj zog crystalline qauv ntawm ferrite. Nws cov khoom sib nqus zoo heev tso cai rau lawv xa cov qib siab ntawm lub zog nrog kev ua haujlwm siab thiab poob qis. Cov ferrite grain qauv ntawm silicon steel kuj ua rau lawv tiv taus qhov kub thiab txias thiab ua rau lawv zoo tagnrho rau siv rau hauv cov ntawv thov kub dua. Cov khoom ntawm silicon steel kuj ua rau lawv tsim nyog rau kev siv xws li tsheb fais fab, kev tsim kho, thiab cov chaw tsim hluav taws xob hauv av.

Silicon steel yog tsim los siv lub tshuab hluav taws xob, uas sib xyaw ntawm cov hlau thiab silicon yog rhuab kom txog thaum nws yaj. Cov molten sib tov yog ces poured rau hauv ib tug hlau pwm nyob rau hauv thiaj li yuav tsim cov yam uas xav tau. Cov hlau pwm feem yog hu ua 'dawb' lossis 'compact', thiab nws tau txias ua ntej muab dov rau hauv ib daim hlab. Cov strips no tau ua tiav ntxiv los siv rau hauv kev tsim cov khoom siv hluav taws xob.

Kev tsim cov hlau silicon muaj ntau yam xws li kev xaiv raw khoom, smelting, thiab dov. Rau txhua yam ntawm cov ntsiab lus no, muaj qee yam kev ua tau zoo uas yuav tsum tau ua kom thiaj li ua tau kom cov hlau zoo thiab sib xws. Cov khoom siv raw yuav tsum raug xaiv kom raug raws li nws cov khoom siv tshuaj thiab lub cev kom cov hlau muaj cov yam ntxwv xav tau. Cov yam ntxwv zoo smelting yuav tsum tau ua kom ntseeg tau los ntawm kev tswj qhov kub thiab txias thiab xaiv cov roj siv. Thaum kawg, cov txheej txheem dov yuav tsum ua kom tau raws li ib theem ntawm kev ua tau zoo txhawm rau ua tiav cov khoom xav tau loj thiab cov duab.

Txhawm rau kom ntseeg tau qhov zoo ntawm silicon steel, nws yog ib qho tseem ceeb kom ua tau raws li cov ntsiab lus smelting. Lub ntsiab lus tseem ceeb tshaj plaws ntawm smelting yog lub ntsiab lus ntawm melting, uas txiav txim siab seb cov khoom puas haum rau kev tsim cov hlau silicon. Nws feem ntau yog nyob nruab nrab ntawm 1230 thiab 1250 degree . Nws kuj tseem ceeb heev rau cov hlau kom muaj cov ntsiab lus tsis tshua muaj leej faj, vim tias cov khoom no txo ​​cov hlau tag nrho cov khoom sib nqus. Cov ntsiab lus sulfur yuav tsum tsis pub tshaj 0.005%. Tsis tas li ntawd, cov hlau yuav tsum muaj cov ntsiab lus phosphorus tsawg, vim tias cov khoom no txo ​​cov permeability thiab saturation induction ntawm cov hlau. Nws yog ib qho tseem ceeb kom khaws cov ntsiab lus phosphorus hauv qab 0.004%.

Hauv kev xaus, cov kev ua tau zoo thiab cov ntsiab lus smelting ntawm silicon steel yuav tsum tau ua tib zoo saib xyuas kom ntseeg tau qhov zoo thiab sib xws ntawm cov hlau. Cov khoom siv raw yuav tsum tau ua tib zoo xaiv thiab cov txheej txheem smelting yuav tsum ua raws li cov cai tshwj xeeb ntawm qhov kub thiab txias thiab hom roj siv. Tsis tas li ntawd, phosphorus thiab sulfur cov ntsiab lus ntawm cov hlau yuav tsum tau saib xyuas zoo vim tias cov ntsiab lus no tuaj yeem txo qhov sib nqus ntawm cov hlau.