Dab tsi yog qhov tsis xws luag ntawm kub dov hlau?
indentation
Cov yam ntxwv tsis xws luag: Muaj qhov tsis sib xws lossis tsis tu ncua hauv zos indentations thiab nqaij poob ntawm qhov ntev ntawm qhov chaw.kub dov steel kav. Cov duab muaj xws li nucleated, striped, transversely bruised, peeled, tawg, hlau filings, thiab lwm yam.
ua rau:
① Muaj cov khoom hlau daig rau ntawm qhov chaw ntawm cov chais ntawm cov thav duab tiav ntawm cov tensioner.
②Scarring lossis lwm yam txawv teb chaws yog tsim los ntawm nias rau ntawm cov yeeb nkab steel thiab ntog tawm.
③ Cov yeeb nkab kub steel yog tsoo los yog khawb.
④ Raug tsoo lossis txaus siab los ntawm cov cuab yeej hla dhau los yog cov cuab yeej sawing.
tus txiav txim:
General pipe: the indentation depth for wall thickness ≤8mm shall not exceed 90% of the negative deviation, and the indentation depth for wall thickness >8mm yuav tsum tsis pub tshaj 80% ntawm qhov tsis zoo sib txawv, thiab qhov siab tshaj plaws qhov tob yuav tsum tsis pub tshaj 1.0mm.
Boiler raj: yuav tsum tsis pub tshaj ib nrab ntawm qhov tsis zoo sib txawv ntawm phab ntsa tuab, qhov siab tshaj plaws tus nqi yog 0.6mm.
Roj casing: Qhov tob indentation yuav tsum tsis pub tshaj ib nrab ntawm qhov tsis zoo sib txawv ntawm phab ntsa thickness. Thaum S Loj dua lossis sib npaug rau 10mm, qhov siab tshaj plaws yuav tsum tsis pub tshaj 0.6mm. Thaum S<10mm, the maximum depth shall not exceed 0.5mm.
Ncaj
Cov yam ntxwv tsis xws luag: grooves faib longitudinally raws qhov kub dov cev steel.
Ua rau: Thaum lub dov kub tsis tshua muaj, cov hlau daig rau lub ntsaws khawb khawb sab hauv ntawm cov yeeb nkab steel, ua rau hnyav hnyav ntawm lub ntsaws. Lub mandrel tsis zoo lubricated los yog hnyav hnyav.
tus txiav txim:
Cov yeeb nkab dav dav: Qhov tob ntawm cov kab ncaj nraim tsis tshaj 90% ntawm qhov tsis zoo sib txawv ntawm phab ntsa tuab, thiab qhov tob tshaj plaws tsis tshaj 1.0mm. Qhov tob ntawm sab hauv ncaj channel tsis tshaj 70% ntawm qhov tsis zoo sib txawv ntawm phab ntsa tuab, thiab qhov tob tshaj plaws channel tsis tshaj 0.6mm.
Boiler raj thiab roj casings: qhov ncaj qhov tob yuav tsum tsis pub tshaj 5% ntawm phab ntsa tuab, thiab qhov siab tshaj plaws yuav tsum tsis pub tshaj 0.4mm.
Tsis puag ncig zoo li
Cov yam ntxwv tsis xws luag: Ntu ntu ntawm cov yeeb nkab steel tsis yog puag ncig.
Ua rau: Kev hloov tsis raug ntawm lub zog clamping thaum lub sij hawm sawing, kev teeb tsa tsis raug ntawm qhov ua tiav tensioner thav duab thiab ua haujlwm thav duab, ntau dhau clamping quab yuam ntawm qhov kawg eddy tam sim no flaw nrhiav qhov hluav taws xob clamping ntaus ntawv, kev hloov ntawm tus nqi lossis lub kaum sab xis ntawm cov menyuam straightening. tsis tsim nyog.
Cov phab ntsa tsis sib xws
Cov yam ntxwv tsis xws luag: Qhov siab tshaj plaws thiab qhov tsawg kawg nkaus phab ntsa thickness ntawm tib seem ntawm cov yeeb nkab steel tshaj qhov zoo sib txawv thiab qhov tsis zoo sib txawv raws li los yog ntau dua ± 8 ~ 10% ntawm nominal phab ntsa thickness (qhov txwv sab sauv yog muab rau cov kav dej tuab thiab cov kav dej. qis qis yog coj mus rau cov kav dej nyias nyias)
Yog vim li cas: Cov khoom siv perforation tuaj tsis tau raws li qhov yuav tsum tau ua, lub ntsej muag kawg ntawm lub raj khoob yog txiav obliquely, lub tshav kub nruab nrab ntawm lub raj dawb paug tawm, lub raj khoob yog rhuab tsis sib xws, cov khoom siv perforation yog kho tsis raug, thiab txuas ntxiv. rolling mill khoom yog kho tsis raug.
khoov
Cov yam ntxwv tsis xws luag: Cov yeeb nkab steel tsis ncaj raws qhov ntev, thiab qhov kawg ntawm cov yeeb nkab steel yog khoov zoo li lub taub hau goose.
Ua rau: Cov kab hauv nruab nrab ntawm ob peb kab dhau los ntawm cov tensioning thiab txo lub tshuab yog misaligned. Kev faib tawm ntawm txoj kab uas hla txo tus nqi ntawm qhov kawg dov hla ntawm lub tensioner yog tsis tsim nyog. Txoj kev ua kom txias ntawm lub raj nro-txo yog tsis tsim nyog lossis qhov kub thiab txias siab dhau thaum lub sij hawm sawing, kev thauj mus los, thiab lwm yam.
Xaus: Cov saum toj no yog plaub yam tsis xws luag ntawm cov kav dej kub-dov hlau. Hnub no cov ntsiab lus xaus ntawm no. Ntsib koj hauv qhov teeb meem tom ntej.
