Tsev > Xov xwm > Ntsiab lus
Txheej txheem no-kuav los tiag ntau lawm
Jan 07, 2017

Mob khaub thuas feem ntau nyob hauv txoj kev longitudinal ntxuag. Feem ntau cov kev mob khaub thuas-kuav los tiag ntau lawm muaj raw khoom noj, dov, degreasing, pickling, annealing (kub kho), xov, thiab lwm yam. Mob khaub thuas kuav los tiag kub kuav los tiag khoom ua raw khoom, khaub thuas rolling raw khoom ua ntej los xyuas kom tus nplaim txias kuav los tiag khoom thawj raug tshem tawm. Dov yog txoj kev tseem ceeb ntawm deformation rau cov khoom siv. Tswj kev tshem tawm tus degreasing ntawm dov nrog dov lubricants kom tsis txhob muaj kuab paug rau thaum annealing steel qhov chaw zom ntawm stainless ntxaij thaiv kom txhob rau pa roj carbon. Annealing xws li annealing thiab kub kho tiav khoom, intermediate annealing yog ua rau eliminated los recrystallization ntawm no ua hauj lwm cov qhov hauv koj, restore cov khoom thiab pab kom cov hlau yas deformation kuj. Meej sab nraud ntawm ntawm recrystallization los tua hardening, kho thaum tshav kub kub. Kuj according mus kev yuav tsum qhov khoom kom tau lub koom haum yuav tsum tau txhaj (xws li ntau yam rau textures, thiab lwm yam) thiab khoom (xws li sib sib zog nqus teeb duab, sib nqus khoom, thiab lwm yam). Tas nrog rau kev kuaj, cropping thiab wires (CA) kev faib tawm, luam ntawv, ntim ua luaj rau. Khoom no-kuav los tiag uas muaj cov kub yuav tsum tiv thaiv qhov khoom nto zaus thaum thauj. Ntxiv rau cov dab hais saum toj no lwm los ua khoom tshwj xeeb muaj nyias cov kev cai tshwj xeeb. Thaum dov silicon steel phaj, pem lub taub hau ntawm no-kuav los tiag los decarburizing annealing, txheej, kub annealing tom qab dov wires, ncab (saib nro wires) thiab tempering.
Ob-yob rau txias dov sawb zeb rolling zeb, zeb thiab rau cov menyuam zeb. Cov lug siv yog plaub-yob zeb. Kuav los tiag thinner khoom siv rau cov menyuam zeb. Muaj pes tsawg hom uas quav zeb, xws li zeb 6-High School, yim-cov menyuam zeb, zeb 12, 20-High School dov zeb (zeb). Nrog tus flatness yuav tsum txhim, tsim ntau yam kev txhim kho rau lub tshuab, xws li dabtsi yog khoov siv tshuab, txhob yees thiab tshuab khaub lig-yob. Khaub thuas rolling sawb mills txheej txheem ntawm nyob rau hauv racks yuav tau muab faib ua tib reversible los yog reversible tsis nrog ob tug kawm uake. Cov qub ntaub ntawv uas ua thiab tsawg tej los yog kev faib ua feem ntawm alloy steel khoom. Tsis tshua muaj peev, nroj tsuag, tiam sis cov zis yog tsawg kawg, tus noj hlau. Nruam ntxuag khib tsim khoom ntau tshaj ib qho me ntsis hloov, nws muaj qhov zoo ntawm efficiency siab, tso zis loj, tiam sis ntau hauv peev. Thiab kub sawb (saib kub twb dov broadband steel ntau lawm ntau txheej txheem, thiab kub narrowband steel lawm) piv, khaub thuas kuav los tiag sawb (mus saib no kuav los tiag Board nrog ntau lawm) cov dov txheej txheem muaj tom qab nta: (1) siv txoj kev lubrication thiab cua txias, los txo ntxuag Shi deformation quab yuam los tiv thaiv thiab txias yob; (2) siv loj nro dov, deformation txo hwjchim los tiv thaiv thiab pov hwm dov rau txoj kev ruaj khov. Nro nqi nyob nruab nrab rau yield zog ntawm cov khoom siv 10% ~ 60%, feem ntau tsis tshaj 50% thiab (3) los ntawm xov dov dov. Vim muaj tus mob khaub thuas dov hauj lwm-cov qhov hauv koj ntawm cov khoom thaum tus nqi deformation thaum 60% ~ mus txog 80%, txuas ntxiv mus deformation yuav nyuaj heev. Annealing, softening ntawm cov khoom tom qab dov mus ntxiv. Thiaj li yuav tau txais tus sawb, tus intermediate annealing tau raug dua. Dov ntawm ob intermediate annealing yog hu ua tau neej ntxuag. Tus nruam annealing ntawm tus mob khaub thuas kuav los tiag steel sawb tiv annealing rauv roj los yog hauv ib hom tswb annealing cub tawg (saib txias sawb annealing). Yam tsawg kawg nkaus thickness rau tus mob khaub thuas kuav los tiag strips 0.05 hli, ntawv nyiaj no tam sim no muaj no yuav tsum mus txog 0.001 hli.