Dab tsi yog vim li cas rau cov channel steel txiav ntug

Tus tsim ntawm channel steel txiav ntug yog raws li cov duab ntawm cov tiav channel steel. Txoj kev tsim qauv no muaj qhov cuam tshuam rau cov teeb meem hauv qab no thaum lub sijhawm txiav: thawj zaug, cov hlau channel yog tuab dua piv rau lwm qhov, qhov thib ob, lub xub pwg yog tuab dua, lub zog shear kuj ntau dua, thiab cov hniav shear hnav sai heev. Tom qab siv nws rau ib lub sijhawm, cov hniav raug txiav. Qhov chaw no muaj qhov hnyav hnyav hnyav, ua rau qhov sib txawv ntawm lub xub pwg nyom loj dua thiab ua rau lub xub pwg plam. Thib ob, piv rau ob txhais ceg thiab lub duav ntawm lub channel steel, vim yog lub zog ntawm lub kaum sab xis ntawm lub kaum sab xis, thaum lub tshuab txiav yog hnav thiab txiav, qhov txiav yog me me, thiab ob txhais ceg raug txiav los kua muag, ua rau cov channel steel ob txhais ceg yooj yim rau lub ntsej muag burrs; Peb ceg yog lub kaum sab xis ntawm sab sauv thiab sab saum toj thiab cov khoom tiav channel steel uas dhau los. Thaum lub zog shear zoo ib yam, lub hauv paus shear quab yuam yog ntau dua, thiab lub shear hniav hnav sai heev. Ntawm ib sab tes, ob txhais ceg nrog hnyav shear indentation, thiab ntawm qhov tod tes, tom qab lub hnub nyoog shear hniav, nws yog ib qho yooj yim los rhuav tshem cov channel hlau hauv qhov txiav. Qhov tseem ceeb ntawm kev tsim cov channel steel shear hniav yog burrs. Ob lub ntsiab lus kawg yog cov laj thawj tseem ceeb uas cuam tshuam rau cov shear zoo ntawm channel steel.