Stainless hlau yeeb nkab yog ib tug ntev hollow round steel, uas yog dav siv nyob rau hauv roj av, tshuaj, kev kho mob, zaub mov, lub teeb kev lag luam, machinery thiab instrumentation, thiab lwm yam industrial pipelines thiab mechanical structural qhov chaw. Tsis tas li ntawd, thaum lub zog khoov thiab torsion yog tib yam, qhov hnyav yog sib dua, yog li nws kuj tau siv dav hauv kev tsim khoom ntawm cov khoom siv tshuab thiab cov qauv engineering. Nws kuj yog feem ntau siv los tsim ntau yam riam phom, tej kas tham, thiab plhaub.

1. Concentricity
Cov txheej txheem tsim khoom ntawm cov kav dej seamless yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm Ntawm qhov kub siab no, cov cuab yeej hlau ua mos thiab muab kauv tsim los ntawm lub qhov tom qab xuas nrig ntaus thiab kos duab. Nyob rau hauv txoj kev no, phab ntsa thickness ntawm lub raj xa dej tsis sib xws thiab eccentricity siab. Yog li, ASTM tso cai rau cov phab ntsa thickness sib txawv ntawm cov kav dej seamless kom ntau dua li cov kav dej seamed. Cov yeeb nkab slotted yog ua los ntawm cov ntawv txias-kuav los tiag (nrog rau qhov dav ntawm 4-5 feet ntawm ib lub kauj). Cov ntawv txias-dov no feem ntau muaj qhov siab tshaj plaws phab ntsa thickness sib txawv ntawm 0.002 nti. Lub phaj hlau yog txiav mus rau qhov dav ntawm πd, qhov twg d yog lub taub sab nraud ntawm cov yeeb nkab. Lub siab ntev ntawm phab ntsa thickness ntawm cov yeeb nkab slit yog heev me me, thiab cov phab ntsa thickness yog heev uniform thoob plaws hauv lub circumference.

2. Vuam
Feem ntau, muaj qhov sib txawv ntawm cov tshuaj muaj pes tsawg leeg ntawm cov kav dej seamless thiab seamless kav. Cov hlau muaj pes tsawg leeg rau kev tsim cov kav dej seamless tsuas yog qhov tseem ceeb ntawm ASTM. Cov hlau siv los tsim cov kav dej seamed muaj cov tshuaj lom neeg tsim nyog rau vuam. Piv txwv li, kev sib xyaw ntawm cov khoom xws li silicon, sulfur, manganese, oxygen, thiab daim duab peb sab ferrite nyob rau hauv ib qho kev faib ua feem tuaj yeem tsim cov vuam yaj uas yooj yim rau kev hloov cua sov thaum lub sij hawm vuam, kom tag nrho cov vuam tuaj yeem nkag mus. Cov kav hlau uas tsis muaj cov tshuaj lom neeg saum toj no, xws li cov kav dej seamless, yuav tsim ntau yam tsis ruaj khov thaum lub sijhawm vuam thiab tsis yooj yim rau vuam khov kho thiab ua tsis tiav.

3. Cov qoob loo loj
Cov qoob loo loj ntawm cov hlau muaj feem xyuam nrog kev kho cua sov thiab lub sij hawm los tswj qhov kub thiab txias. Qhov luaj li cas ntawm lub annealed slit stainless hlau raj thiab seamless stainless hlau raj yog tib yam. Yog hais tias lub seam yeeb nkab tau txais kev kho mob txias yam tsawg kawg nkaus, cov nplej loj ntawm cov welded yog me dua li cov nplej loj ntawm cov hlau welded, txwv tsis pub, cov nplej loj yog tib yam.