Vim li cas Alloy Khoov Kev Ua Haujlwm Ceev Tsawg?
Thaum lub sij hawm ua cov hlau khoov, qhov kub ntawm cov hlau deformation cheeb tsam nce siab thaum lub sij hawm extrusion txheej txheem, ua rau muaj peev xwm tsim cov kab nrib pleb los yog nto fissures nyob rau hauv nkig cheeb tsam ntawm lub alloy. Yog li ntawd, qhov ceev ntawm cov hlau ntws tawm yog txwv. Nyob rau hauv cov txheej txheem dov, deformation thiab kev sib txhuam yog tsawg heev, thiab yog li ntawd, muaj me ntsis tiam ntawm kev sib txhuam thaum kub deformation. Qhov tshwm sim ntawm kev hloov pauv ntawm cov hlau txuas los ntawm thaj av yas mus rau thaj tsam nkig vim qhov kub nce kuj tseem qis heev. Li no, qhov ceev ntawm txoj kev loj hlob los ntawm extrusion rau alloy khoov tsis siv sij hawm-limited.
Tsis tas li ntawd, nyob rau hauv ib lub voj voog extrusion, muaj ntau yam txheej txheem pabcuam, uas tuaj yeem siv sijhawm ntev, ua rau qis qis qis dua piv rau dov.
Cov txheej txheem cua sov hauv txoj kev tsim muaj xws li nplaim hluav taws kub thiab induction cua sov nrog nruab nrab lossis siab zaus induction (cov cua sov coil yuav muaj ntau lub voj voog lossis ib lub voj voog). Kev xaiv cov txheej txheem cua sov yog nyob ntawm cov khoom siv tshwj xeeb, cov txheej txheem txheej txheem, thiab cov xwm txheej ib puag ncig uas tau txiav txim siab txog kev tsim kho tshuab.
Rau carbon steel thiab alloy steel khoov, kub thawb dabtsi yog khoov yog thawj txoj kev, tab sis kub sib sau kuj tau siv rau cov qauv stainless hlau khoov. Cov txheej txheem kub laub dabtsi yog khoov cov yam ntxwv xws li lub ntsej muag zoo nkauj, tuab tuab, thiab kev ua haujlwm tas mus li, ua rau nws tsim nyog rau ntau lawm.
Tus nqi siab ntawm cov ntaub ntawv ua thiab kev tsim cov cuab yeej extrusion, tshwj xeeb tshaj yog rau cov khoom siv hluav taws xob siab heev, txhais tau hais tias tus nqi ntawm cov khoom extruded yog negligibly cuam tshuam. Hauv cov ntsiab lus, extrusion tseem tsuas yog siv tau txoj hauv kev los ua cov kav dej lossis cov phab ntsa nyias nyias, nrog rau kev ua cov ntaub ntawv xws li cov hlau tsis muaj hlau thiab hlau.
Thaum extrusion tau pib siv rau kev tsim khoom loj ntawm cov khoov ua los ntawm cov pa roj carbon steel thiab hlau alloy, nws kuj tau pom cov ntawv thov rau cov qauv stainless hlau khoov. Cov txheej txheem kub extrusion siv cov tshuab pusher tshwj xeeb los ua kom sov qhov khoob thaum lub sijhawm txav mus los. Nws yog tsim los tsim khoov nrog ib txoj kab uas hla-rau-phab ntsa thickness piv txog li 2.
Xovxwm txoj kev, raws li ua hauj lwm nyob rau hauv alloy khoov ntau lawm, tau pib hloov los yog ntxiv cov pa kub-forming txheej txheem. Txawm li cas los xij, rau qee cov qauv hlau khoov nrog cov khoom qis lossis cov phab ntsa tuab heev lossis nyias, cov txheej txheem ntau lawm tseem ua haujlwm vim cov kev xav tau tshwj xeeb.
Xovxwm tsim cov txheej txheem feem ntau koom nrog kev siv ib qho khoob nrog tib txoj kab uas hla sab nraud raws li qhov khoov tiav. Lub khoov yog nias ncaj qha nyob rau hauv cov kev txwv ntawm ib tug hydraulic xovxwm. Ua ntej kev ua haujlwm, cov yeeb nkab tau muab tso rau hauv qhov tuag, thiab cov tuag sab saud, cov tub ntxhais sab hauv, thiab qhov kawg tuag yog mounted kom pib txwv kev txav mus los. Txoj kev no tswj cov kev txwv sab nraud hauv txoj kev khoov.
Nyob rau hauv cov ntaub ntawv ntawm alloy dabtsi yog khoov, lub sab arc yuav raug stretching thaum lub sij hawm tsim, thiab tsis muaj ntxiv hlau cov ntaub ntawv uas nyob rau hauv compensate economically rau thinning nyob rau hauv lub sab arc seem. Txawm li cas los xij, cov txheej txheem dabtsi yog khoov xovxwm tseem tsim nyog rau kev tsim khoom hnyav-walled alloy khoov, tshwj xeeb tshaj yog vim nws cov khoom siv ib leeg thiab cov yam ntxwv ntawm tus nqi.
