1.Dab tsi yog cov yam ntxwv ntawm nthwv dej ntawm ob sab? Yuav kho lawv li cas?
Cov npoo ntawm cov sawb tsis sib xws.
• Kho cov yob: Txhim kho cov yob yas kom tsim nyog.
• Kho cov rolls khoov: Kho qhov khoov yob quab yuam; yog tias tsim nyog, hloov mus rau qhov tsis zoo bending yob.
• Ua kom txias txias zoo: xyuas kom txias txias ntawm ob qho kawg ntawm lub cev yob; txhim khu kev txias ntawm nruab nrab ntu.
2.Dab tsi yog tus yam ntxwv ntawm ib nrab -wave qauv? Yuav tsum tau kho li cas?
Qhov nruab nrab ntawm lub sawb tsis sib xws
• Kho cov yob: Siv qhov tsim nyog (txo) yob profile yas.
• Kho cov rolls dabtsi yog khoov: Tsim nyog txo qhov zoo dabtsi yog khoov yob quab yuam.
• Kho qhov nro: Ua kom haum rau pem hauv ntej lossis nraub qaum.
3.Yuav ua li cas kom siv tau zoo ntawm cov phaj zoo tswj?
Yob dabtsi yog khoov tswj: Qhov no yog txoj kev siv ntau tshaj thiab rhiab heev. Lub yob sib txawv yog hloov sai sai los ntawm kev khoov cov yob ua haujlwm siv lub tshuab hydraulic. Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias qhov kev hloov pauv ntawm lub zog dabtsi yog khoov ncaj qha cuam tshuam rau lub strip zoo; Yog li ntawd, hydraulic system yuav tsum tau ruaj khov.
Segmented txias tswj: Los ntawm txau cov dej txias hauv ntu raws qhov ntev ntawm cov yob, lub thermal crown ntawm yob tuaj yeem tswj tau meej, yog li kho cov kab hauv zos. Piv txwv li, thaum ob -sab waviness tshwm sim, qhov txias ntawm qhov nruab nrab ntawm qhov yob yuav tsum muaj zog.
Kev tswj nruj: Tsim nyog nce nro yuav pab kom flatten lub strip thiab suppress waviness. Txawm li cas los xij, kev nruj heev tuaj yeem ua rau nqaim lossis tawg; yog li ntawd, nws yuav tsum tau teem kom zoo.
4.Yuav ua li cas tswj rolling zeb rolls zoo?
Tswj nruj nreem hloov lub voj voog: Raws li dov mileage nce, yob hnav, thiab yob profile deteriorates. Rau cov hlau tsis tshua muaj nyias, yob hloov lub voj voog yuav tsum tau luv luv (xws li, txo cov hlau hla ntawm kev ua haujlwm yob los ntawm 80t mus rau qis dua 60t).
Xyuas kom yob preheating: Ua ntej dov, cov yob yuav tsum tau preheated tag nrho (piv txwv li, rau ntau tshaj 25 feeb) kom ntseeg tau tias thermal expansion thiab tiv thaiv tsis zoo pib strip zoo vim qhov kub tsis sib xws.
5.Yuav ua li cas optimize cov txheej txheem tsis?
Tswj dov quab yuam: Ntau tshaj dov quab yuam yuav exacerbate yob deflection thiab ua rau ntug waviness. Qhov no tuaj yeem hais los ntawm kev ua kom zoo dua qhov txo qis ib qho los faib cov khoom thauj.
Ua tib zoo saib xyuas cov khoom zoo: Cov duab, thickness kam rau ua, thiab hardness uniformity ntawm cov khoom tuaj ncaj qha cuam tshuam rau cov duab ntawm cov khoom tiav. Rau cov khoom siv loj heev waviness, yuav tsum tau kho nyob rau hauv cov txheej txheem ua ntej (xws li leveling).