Cov tswv yim daws teeb meem ntawm qhov chaw oxidation hauv titanium alloy forgings
Qhov saum npoo oxidation yog mob taub hau loj hauv kev tsim cov titanium alloy forgings - nws tsis yog tsuas yog txo kev siv hlau xwb tab sis kuj tuaj yeem ua rau cov nqi khoom nce ntxiv. Peb tuaj yeem txo qis lossis txawm tias tshem tawm oxidation hauv titanium alloy forgings thaum lub sijhawm cua sov? Niaj hnub no, peb yuav qhia ntau yam kev sim ua pov thawj zoo los pab koj kov yeej qhov teeb meem no.
Ua ntej, nkag siab txog keeb kwm kev sim: cov ntaub ntawv thiab cov txheej txheem no yog qhov tseem ceeb.
Txoj kev tshawb no siv BT3-1 titanium alloy extruded billets rau kev sim. Ua ntej forging, lub pob zeb saum npoo tau kho kom zoo li qub, thiab tom qab ntawd muab tso rau hauv qhov cub hluav taws xob rau 950℃-980 degree. Tib lub sijhawm, daim hlau ua los ntawm BT20 thiab OT4-1 alloys, nrog rau cov kav dej ua los ntawm ПT7M alloy, tau siv rau kev sib piv. Tag nrho cov qauv thiab cov extruded billets tau rhuab ib txhij. Thaum kawg, lub luj tshib, tees, thiab ntoo khaub lig tau ua tiav extruded siv BT3-1 alloy, muab lub hauv paus kev sim rau kev tshawb fawb tom ntej.
Tswvyim 1: Ua ntej- kev kho oxidation, ntxiv "kev tiv thaiv tsis pom" rau lub pob zeb.
Koj puas paub? Qhov txawv ntawm pre-kev kho oxidation thiab tsis muaj pre- oxidation kev kho mob loj:
• Unoxidized billets muaj ntses- nplai zoo nkauj ntawm qhov chaw thiab hnov ntxhiab thiab tsis sib npaug rau qhov kov;
• Ua ntej- oxidized billets muaj qhov du thiab tiaj tus, zoo li lawv tau ua tib zoo polished.
Dab tsi yog qhov zoo dua yog tias cov iav enamel txheej nyob rau saum npoo ntawm qhov tsis muaj qhov tshwj xeeb yog yooj yim tshem tawm tom qab kev kho ua ntej - oxidation, txuag tau ntau yam teeb meem rau kev ua haujlwm tom ntej. Cov kauj ruam no zoo li yooj yim, tab sis nws tuaj yeem txhim kho qhov zoo ntawm qhov chaw thiab pab kho cov txheej txheem tib lub sijhawm, uas tsuas yog "tua ob tug noog nrog ib lub pob zeb".
Tswv Yim 2: Txhim kho qhov chaw kho kom zoo los txhim kho "plasticity" ntawm forgings.
Lub xeev ntawm txheej txheej (xws li kev kho oxidation, txawm tias nws absorbs roj) muaj kev cuam tshuam loj rau cov khoom siv ntawm forgings, tshwj xeeb tshaj yog lawv cov yas. Xav txhim kho plasticity? Ob txoj kev no tau raug kuaj tus kheej thiab ua pov thawj tias muaj txiaj ntsig:
• Sandblasting:Yooj yim thiab ncaj qha, nws tuaj yeem txhim kho cov plasticity ntawm cov billet thiab ua rau cov forgings ruaj khov dua;
• Combination punch:Ua ntej- oxidation + iav enamel txheej: Ua ntej- oxidation kev kho mob ua ntej, ua raws li txheej txheej iav enamel txheej, uas tuaj yeem ua kom zoo dua cov yas yas thiab ua tau raws li qhov yuav tsum tau ua ntawm cov xwm txheej sib txawv.
Tswv yim 3: Xaiv txoj kev cua sov kom txo tau oxidation ntawm qhov chaw
Cov cua kub yog ib qho tseem ceeb hauv kev tsim cov titanium alloy forgings, thiab xaiv txoj kev zoo tuaj yeem txo qhov kev pheej hmoo ntawm oxidation nto.
Rau cov pa hluav taws xob cua sov cua sov:tswj qhov kub thiab lub sijhawm yog qhov tseem ceeb.
Yog tias lub qhov cub hluav taws xob niaj hnub siv rau cua sov, tsuav qhov kub tsis tshaj qhov ntsuas kub ntawm allotropic transformation thiab lub sij hawm tuav tsawg dua 1 teev, qhov saum npoo ntawm lub billet feem ntau yuav tsis nqus cov pa tseem ceeb. Tom ntej no cov pa sandblasting tau yooj yim tshem tawm cov pa roj ntxiv -absorbing txheej, ua cov txheej txheem kuj yooj yim.
Cua sov ntawm pseudo-liquefied txheej nyob rau hauv cov ntaub ntawv xoob: efficiency yog "outrageously" siab.
Qhov no yog ib qho kev cog lus zoo cua sov uas tuaj yeem ua rau kom muaj kev sib pauv cua sov ntawm cov khoom, gases, thiab billet nto. Cov kev sim qhia tau hais tias nws qhov kev hloov pauv cua sov yog 1.5 qhov kev txiav txim siab ntau dua li qhov yuam kev ntawm qhov cub hluav taws xob, thiab yuav luag sai npaum li cov ntsev ntsev!
Dab tsi yog cov txiaj ntsig ntawm kev kub ceev? Lub sij hawm cua sov luv luv txhais tau hais tias tsis tshua muaj kev cuam tshuam ntawm billet mus rau qhov kub thiab txias, ib txwm txo qis oxidation ntawm qhov chaw. Nyob rau tib lub sijhawm, cua sov sai dua thiab zoo dua txhim kho kev tsim khoom thiab cov khoom zoo - triple yeej!
