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Dab tsi yog Txias Dov

Cov yas deformation ntawm cov hlau yog qis dua qhov ntsuas kub ntawm txoj kev ywj pheej. Cov thooj nyaj khaus pov tseg ntau lawm, kev ua kom zoo tshaj plaws, kev kub siab ntawm mechanization automation, yog ib txoj haujlwm tseem ceeb tshaj plaws. Txij li cov nplais ntawm cov khoom siv raw ua ntej dov, tsis muaj kev cuam tshuam ntawm lub zaws ntawm lub nplai thiab qhov kub hloov los ntawm cov khoom qub thaum lub sij hawm txoj kev ywj pheej. Vim li no, cov khoom pov tseg uas txias txias muaj qhov siab tshaj plaws, qhov dej saum npoo thiab tuaj yeem dov tawm ntawm cov khoom me me thiab lwm yam khoom zoo. Tsis tas li ntawd, txias dov ua rau lub zog ua haujlwm ntawm cov khoom, uas ua rau lub zog ntawm cov khoom. Ua ke nrog ntawm cov ntaub ntawv txias thiab cov txheej txheem kev kho cua sov tuaj yeem txhim kho cov cuab yeej hluav taws xob txhua yam khoom. Piv nrog kub kub zus tau, txias dua cov txheej txheem ua rau lub cev, deformation ntawm lub zog noj, cov nqi siab ntau lawm. Cov khoom uas muaj cov kab txias tuaj yeem muab faib ua cov kab txias rau cov kab txias, cov kab txias sib tsoo thiab cov xim txias ntom nti raws li tus qauv khej. Qhov twg yog qhov feem ntau siv los ua pob twv txias.

Mob khaub thuas dov yog feem ntau ua los ntawm txoj hlua ntawm lub cev ntev. Cov txheej txheem khov nyiab feem ntau muaj xws li cov ntaub ntawv npaj raw, dov, degreasing, kev nplawm, ua tiav thiab lwm yam. Mob khaub thuas dov rau cov khoom kub nyhav, raw cov ntaub ntawv ua ntej txias dua kom ntog pov tseg kom pom tseeb tias cov khoom uas muaj qhov txias ntawm cov khoom txias zaws. Dov yog tus txheej txheem tseem ceeb ntawm kev rhuav tshem ntawm cov khoom. Lub hom phiaj ntawm degreasing yog tshem tawm cov roj ntxig txuas nrog cov khoom qub, yog li tsis mus paug rau ntawm cov hlau paug, stainless hlau kuj tiv thaiv carbon. Tshawb xyuas muaj xws li nruab nrab ntawm kev kho thiab ua tiav kho kub. Kev sib quas ntuag yog tau los ntawm recrystallization mus tshem tawm cov haujlwm ua kom tawv nqaij los ntawm lub cev deformation los kho cov khoom ntawm qhov khoom thiab kom tsis txhob deformation ntawm cov hlau. Lub hom phiaj ntawm cov khoom tiav kho cov khoom kub yog mus tshem tawm hardening los ntawm recrystallization. Tab sis kuj yog raws li cov kev cai ntawm cov khoom kom tau txais lub koom haum kom muaj thiab cov khoom ua tau zoo. Xaus suav nrog kev kuaj xyuas, txiav, kev ncaj, luam tawm, cais thiab ntim. Cov khoom khov muaj txheej txheem ntim cov khoom ntim khoom tiv thaiv kom tsis txhob cuam tshuam rau cov khoom hauv kev thauj khoom. Ntxiv rau cov txheej txheem saum toj no hauv cov khoom tsim tshwj xeeb, muaj lawv tus kheej tshwj xeeb cov txheej txheem. Xws li txoj hlua khawb silicon steel phaj, ua ntej lub caij nplooj ntoos zeeg pib, rov tom qab zaj duab xis, kub siab ua kom zoo, ncab ncaj thiab kub.

Cov dov zeb rau cov pob zeb uas muaj kab txias rau cov kab txias muaj ob-high rolling zeb, plaub-high rolling zeb thiab multi-yob zeb. Qhov feem ntau siv los yog plaub-yob zeb. Dov thinner khoom yuav siv ntau-yob mills. Muaj ntau hom kev yob yob, xws li muaj 6-yob zeb, yim-yob zeb, kaum ob dov zeb, nees nkaum yob zeb. Nrog kev txhim kho ntawm kev sib tw khoom, kev txhim kho ntawm ntau tus qauv zoo li daim ntawv thev naus laus zis, xws li kev siv tshuab khoov, kev yob yau thiab tshuab rhuav kev siv tshuab. Cov phom dov ua pob zeb raws li cov khib nyiab yuav muab faib ua ib leeg thev rov qab los yog tsis ua haujlwm thiab ntau hom tshuab ob ntu. Cov qub yog tsim rau ntau hom, me me batch lossis hlau hlau, qhov kev faib ua feem loj loj. Nws nqis tsawg, ua tau ceev, tab sis yields qis, cov hlau noj loj. Ntau cov khib nyiab nruam yog tsim rau cov khoom siv ntau yam los yog hloov me ntsis rau hauv qhov teeb meem no, nws muaj kev ua haujlwm siab ntau lawm, qhov zoo ntawm cov zis loj, tab sis cov peev ntau dua. Muab piv rau cov kab txaij uas muab hle tawv tuaj, muaj cov kab xeb tuaj yeem muaj cov nram qab no: (1) kev siv lubrication thiab txias kom tsis txhob deformation tiv thaiv thaum rolling thiab txias yob; (2) kev siv qhov nro loj, Los ua kom tsis txhob deformation thiab ua kom muaj kev ruaj ntseg ntawm txoj kev ywj pheej. Siv qhov nruab nrab ntawm kev sib nraus ntawm cov khoom siv tawm ntawm 10% mus rau 60%, feem ntau tsis tshaj 50%; (3) kev siv ntau lub voj dov. Raws li qhov txias dua ntawm cov khoom siv los tsim cov qhov sib zog, thaum tag nrho deformation ntawm 60% mus rau 80%, mus ua tsis yooj yim deformation. Rau qhov no yuav tsum intermediate annealing, yog li ntawd cov khoom softened tom qab dov mus ntxiv. Yuav kom tau txais cov hlau uas yuav tsum tau muaj lub voos, xws li kev sib tw ua ke yuav raug siv tawm ob peb zaug. Dov ntu nruab nrab ntawm ob lub pob ntiv taw yog hu ua kev ywj pheej. Txoj kab ntawm lub pob zeb ziab txias yog muab coj los tso rau hauv lub qhov cub tawg lossis lub tshuab hluav taws kub uas muaj lub nplhaib uas tiv thaiv kom muaj cua kub. Yam tsawg kawg nkaus ntawm cov kab mob khaub thuas txias tau tam sim no ncav cuag 0.05 hli, cov ntawv khoob khoob khov muaj peev xwm ncav cuag tau 0.001 hli.

Cov thawv ntim khoom qab zib yog muab cov hlau khov uas muaj hlau khov heev, lub raj tuab thiab cov khov khov thiab cov yeeb nkab tshwj xeeb, cov yeeb nkab sib txawv thiab lwm cov khoom siv tseem ceeb. Txias dov cav yeeb nkab rau ntau hom kev ntxhib tshuab, qhov feem ntau yog siv los yog ob-yob thiab multi-yob hloov txias-rolling tshuab.

Dim qhov tseeb los yog lub zog ntawm cov khoom siv high profile tuaj yeem yog cov ntaub ntawv kub raws li raw cov ntaub ntawv uas siv los tsim cov txheej txheem txias.



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