Titanium alloy Forging, vim yog cov txheej txheem tsis raug cai, raw khoom zoo tswj tsis nruj thiab lwm yam, kev lom zem yuav muaj ntau yam tsis zoo. Cov khoom tsis xws luag yog raws li hauv qab no:
1, brittleness
embrittlement yog tshwm sim los ntawm overheating ntawm kev zam txim. thiab (+) titanium alloys, tshwj xeeb tshaj yog (+) titanium alloys yog siab dhau ntawm lub koom haum ntawm cov nplej yog loj, ometric; Microstructure-pephase nagitation raws cov sib zog ntawm cov thawj qoob loo ntawm cov nplej ntawm cov nplej thiab qhov intracrystalline sawb. Qhov tshwm sim yog tias cov plastity ntawm kev forging ntawm chav tsev kub tau txo qis, qhov tshwm sim no yog hu ua embrittlement.
Titanium alloy forgings overheating tsis tuaj yeem kho los ntawm kev kho cua sov, tab sis yuav tsum tau rhuab dua rau kev hloov pauv kub hauv qab no (yog tias cov forging tso cai) yas deformation los kho.
Txhawm rau tiv thaiv kev kub heev, titanium alloy cua sov, yuav tsum nruj me ntsis kev daws teeb meem ntawm qhov ntsuas kub ntawm cov chaw sov, kev tsim nyog rau kev them nyiaj thiab lub txim ntim tsis tuaj yeem siv tau feem ntau. Thaum siv cua sov, baffles yuav tsum teeb tsa ob sab ntawm cov cub hluav taws kom tsis txhob muaj kev kub ntxhov dhau los ntawm cov pob zeb uas muaj silbide. Kuaj pom qhov tseeb -transition kub ntawm txhua qhov cub hluav taws xob kuj yog kev ntsuas zoo los tiv thaiv kev kub heev.
2, ib cheeb tsam coarse crystal
Nyob rau hauv rab rauj lossis nias tuag Forging, vim yog cov khoom siv hluav taws xob tsis zoo, yog li cov khoom siv hluav taws xob sib tw ntawm lub koom haum yog khaws cia ntawm lub koom haum uas tau khaws cia, kev tsim ntawm lub zos tshiab Muaju.
Txhawm rau kom tsis txhob titanium alloy zos choamstal tsis xws luag, ntsuas hauv qab no tuaj yeem ua tau: kev siv cov txheej txheem kev ua tiav, yog li qhov kev sib tw ua ntej tso tseg; ntxiv dag zog rau cov roj siv lubrication, txhim kho kev sib txhuam ntawm cov billet thiab pwm; Siab preheat cov pwm kom txo cov billet hauv cov txheej txheem forging ntawm qhov kub thiab txias.
3, tawg
Titanium Alloy Forging Cov kev tawg nteg nthab yog feem ntau tsim tawm thaum qhov kawg tau txais kev kub siab tshaj plaws yog qis dua li tag nrho cov titanium alloy. Nyob rau hauv kev tuag Txhawm rau tswj hwm qhov tshwm sim ntawm cov kab nrib pleb, thaum tuag sau npe rau ntawm xovxwm, kuaj xyuas lub rauj, sim ua kom luv luv lub sijhawm sib tiv ntawm nruab nrab thiab qis tuag.
4, tseem tshuav cov koom haum Casting
Forging ntawm alllocium alloy ingots, yog tias kev forging piv tsis yog qhov loj txaus los yog kev zam txim yuav tawm hauv lub koom haum meting. Kev daws rau qhov tsis xws luag no yog kom nce kev sib piv zoo thiab siv cov kev pheej hmoo siab tshaj plaws.
5, ci sawb
Lub npe hu ua titanium alloy forgings nyob rau hauv lub koom haum ci ci, yog tam sim no nyob rau hauv lub koom haum qis ntawm ib lub sawb nrog lub ci ci ci pom rau lub qhov muag liab. Vim qhov sib txawv ntawm lub kaum sab xis ntawm lub teeb pom kev, lub ci ci tuaj yeem ci dua li cov hlau hauv paus, kuj tuaj yeem tsaus dua li ntawm cov hlau hauv paus. Hauv kev hla ntu, nws yog nyob rau hauv daim ntawv ntawm dots lossis flakes; Nyob rau hauv seem ntev, nws yog ib txoj hlua ntev ntev nrog qhov ntev ntev los ntawm ntau tshaj kaum millimeters rau ntau metres. Muaj ob qho laj thawj tseem ceeb rau lub ci ci: ib qho yog cov tshuaj lom neeg muaj pes tsawg leeg ntawm titanium alloy cais, thiab tus thib ob yog deformation ntawm forging txheej txheem thermal.
Cov kab mob ci muaj qee yam cuam tshuam rau kev ua haujlwm ntawm titanium alloy, tshwj xeeb tshaj yog ntawm cov yas thiab kev ua haujlwm kub. Kev ntsuas los tiv thaiv qhov tshwm sim ntawm cov kab npoo ci yog kom tswj hwm cov smelting ntawm cov tshuaj lom neeg muaj pes tsawg leeg; Qhov tseeb xaiv ntawm Forging Thermal specifications (qhov kub thiab lwm yam vim yog deforming pieces ntawm cov thermal cuam tshuam ntawm qhov sib txawv yog loj heev.
6, embittlement txheej
POLMRITTLEMENTLEMENTLEMENT yog tsuas yog titanium alloy ntawm cov xim kub thiab cov pa roj ntsha, yog li ua kom muaj cov pa roj oxiagen thiab nitrogen ntawm cov pa roj oxide, yog li nce tus naj npawb ntawm -phase hauv cov koom haum npoo. Thaum cov pa oxygen thiab nitrogen cov ntsiab lus ntawm cov hlau nto mus txog ib qho nqi, lub koom haum npoo yuav ua tiav ntawm theem. Nyob rau hauv txoj kev no, qhov saum npoo ntawm titanium alloy ua ib txheej saum npoo av nrog ntau dua theem. Cov txheej txheem saum npoo no txheej txheem ntawm theem feem ntau hu ua cov txheej emgrittlement. Ib txheej uas tuab heev embrittlement txheej rau saum npoo ntawm titanium alloy billet yuav ua rau tawg ntawm lub billet thaum faff.
Cov tuab ntawm lub embrittlement txheej yog ze ze rau hom cua sov sov siv rau kev ua kom sov, cov cua sov ntawm lub billet lossis ib feem, thiab lub sijhawm tuav. Nrog rau qhov nce nyob rau hauv kub kub, tuav lub sijhawm nce cov tuab; Nrog rau kev nce hauv cov pa thiab cov ntsiab lus ntawm cov ntsiab lus hauv cov pa taws ua kom sov thiab thickening. Yog li ntawd, txhawm rau zam dhau qhov no puag txheej tawv heev, forging lossis kev kho cua sov ntawm qhov cua sov thiab lwm yam.
, thiab (+) titanium alloys yuav tsim embrittlement txheej. Txawm li cas los xij, titanium alloys tau tshwj xeeb rau kev tsim ntawm kev tsim lub meej mom, thaum titanium alloys yuav tsis tsim ib txheej embrittlementlement kom txog thaum lawv rhuab rau 980 degree lossis ntau dua.
