Raws li cov txheej txheem dov, nws muab faib ua kub dov, kub kub extrusion thiab kos duab txias (dov) stainless hlau yeeb nkab.
Raws li cov qauv siv hlau ua cov xim hlau, nws muab faib ua txoj hau dej thiab ib nrab ntawm cov hlau tsis muaj dej, cov yeeb yaj kiab ua kom cov kav hlau tsis muaj hlau, cov hlau tsis muaj hlau, cov kav hlau txuas, austenitic-ferritic stainless hlau seamless kav, thiab lwm yam.
Cov lus qhia tshwj xeeb thiab pom tseeb zoo
A. Raws li GB14975-2002 "Cov Yeeb Nkab Hlau Seamless Steel Yeeb Nkab", cov kav xa dej steel yog feem ntau li 1.5 mus rau 10m hauv qhov ntev (kev txiav txim siab ntev) rau cov kav dej kub-txias, thiab cov kav hlau kub ntawm cov kav hlau yog sib npaug thiab ntau dua 1m. Rau cov khaub thuas sib twv (dov) steel kav nrog lub phab ntsa tuab ntawm 0.5 txog 1.0 hli, 1.0 mus rau 7 m; rau cov phab ntsa tuab ntau dua 1.0 hli, 1.5 txog 8 m.
B. Muaj 45 hom kub-kuav los tiag (kub-txuas) hlau kav nrog lub taub ntawm 54 txog 480mm; 36 hom ntawm phab ntsa thicknesses ntawm 4.5 txog 45mm. Muaj 65 hom kev ua mob khaub thuas (dov) cov kav hlau uas muaj lub taub ntawm 6 txog 200 hli; 39 hom ntawm phab ntsa tuab ntawm 0.5 txog 21 hli.
C. Yuav tsum tsis txhob muaj cov kab nrib pleb, sib tsoo, sib tsoo, ua kom tawg, txhawm rau, ua kom tawg, thiab nti rau ntawm qhov chaw sab hauv thiab sab nrauv ntawm cov yeeb nkab steel. Cov kev tsis zoo no yuav tsum tau muab tshem tawm kom meej (tshwj tsis yog siv tshuab kho cov kav dej). Tom qab tshem tawm, phab ntsa tuab thiab sab nraud Txoj kab uas hla dhau qhov tsis zoo tsis zoo. Lwm qhov ua haujlwm tsis zoo saum npoo av tsis dhau cov kev ua tau tsis zoo uas tsis zoo tso cai yuav tsis raug tshem tawm.
D. Ncaj qhov tob tau. Kub-kuav los tiag, kub-txuas hlau kav, txoj kab uas hla tsawg dua thiab sib npaug li 140 hli, tsis ntau tshaj 5% ntawm cov phab ntsa nominal thickness, thiab qhov tob loj tsis ntau tshaj 0.5 hli; txias-twv (dov) steel kav, tsis ntau tshaj 4% ntawm cov nominal phab ntsa tuab, thiab qhov tob tob loj tsis tshaj li 0.3 hli.
E. Ob qhov kawg ntawm cov yeeb nkab steel yuav tsum tau txiav ntawm cov ces kaum sab xis, thiab burrs yuav tsum tau muab tshem tawm.
