Titanium thiab titanium alloy muaj ntau yam khoom zoo meej thiab kev ua tau zoo raws li cov khoom siv tshiab.
Hnub noTopTechqhia qee yam khoom rau koj:
1. Machining kev ua tau zoo
Titanium alloy muaj cov tshuaj lom neeg ua haujlwm siab ntawm qhov kub thiab txias, thiab nws yooj yim rau chemically react nrog roj impurities xws li hydrogen thiab oxygen nyob rau hauv cov huab cua los ua ib tug hardened txheej, uas ntxiv aggravates lub hnav ntawm lub cuab tam; Hauv kev txiav ntawm titanium alloy, cov khoom siv ua haujlwm yog yooj yim heev los lo rau saum npoo ntawm lub cuab yeej. kev sib txuas, ua ke nrog kev txiav siab siab, yog li lub cuab yeej yog nquag mus rau diffusion hnav thiab nplaum hnav. Piv nrog 45 steel, txawm hais tias lub zog txiav ntawm titanium alloy tsuas yog 2/3-3/4, qhov chaw sib cuag ntawm cov nti thiab lub ntsej muag rake me dua (tsuas yog 1/2-2/3 ntawm 45 steel. ), yog li qhov kev ntxhov siab ntawm kev txiav ntug yog ntau dua, thiab cov cuab yeej los yog txiav ntug yog yooj yim hnav; Kev sib txhuam coefficient ntawm titanium alloy loj, tab sis cov thermal conductivity tsawg (tsuas yog 1/4 thiab 1/16 ntawm hlau thiab txhuas, feem); kev sib cuag ntawm cov cuab yeej thiab cov nti Qhov ntev yog luv luv, thiab txiav cov cua sov yog tsim nyob rau hauv ib qho chaw me me ze ntawm ntug txiav thiab tsis yooj yim dissipated. Cov yam ntxwv no ua rau kev txiav kub ntawm titanium alloys siab heev, ua rau cov cuab yeej nrawm nrawm thiab tsis zoo machining. Vim qhov tsis tshua muaj elastic modulus ntawm titanium alloy, lub workpiece rebounds zoo heev thaum txiav, uas yog ib qho yooj yim ua rau aggravation ntawm cov cuab yeej flank hnav thiab workpiece deformation.
2. Kev sib tsoo ua haujlwm
Kev hnav ntawm titanium alloy sib tsoo lub log kuj ua rau qhov chaw sib txuas ntawm lub log sib tsoo thiab cov khoom ua haujlwm, uas ua rau muaj kev puas tsuaj ntawm cov cua sov dissipation, qhov kub thiab txias ntawm qhov chaw sib tsoo, thiab tsim kom muaj kev ntxhov siab loj ntawm cov cua sov. qhov sib tsoo nto txheej, ua rau hauv zos kub hnyiab ntawm workpiece, uas ua rau sib tsoo tawg. Titanium alloy muaj lub zog siab thiab siab tawv, uas ua rau kev sib tsoo cov khib nyiab nyuaj rau kev sib cais, sib tsoo quab yuam nce, thiab kev sib tsoo lub zog noj nce ntxiv. Titanium alloy muaj thermal conductivity tsawg, me me tshwj xeeb cua sov, thiab qeeb cua sov conduction thaum lub sij hawm sib tsoo, uas ua rau cov cua sov mus rau hauv lub sib tsoo arc cheeb tsam, uas ua rau ib tug ntse nce nyob rau hauv qhov kub ntawm qhov sib tsoo cheeb tsam.
3. Extrusion kev ua tau zoo
Titanium thiab titanium alloy extrusion tuag yuav tsum tau ua los ntawm cov ntaub ntawv tshiab kub-resistant pwm, thiab kev ceev ntawm lub billet los ntawm cov cua sov rauv rau lub extrusion cylinder yuav tsum ceev ceev. Txij li cov hlau tau yooj yim kis los ntawm cov pa roj thaum cua sov thiab extrusion, kev tiv thaiv tsim nyog yuav tsum tau siv. Cov lubricants tsim nyog yuav tsum raug xaiv thaum lub sij hawm extrusion los tiv thaiv cov pwm, xws li kev siv sheath extrusion thiab iav-lubricated extrusion. Vim qhov loj deformation thermal nyhuv thiab tsis zoo thermal conductivity ntawm titanium thiab titanium alloys, tshwj xeeb yuav tsum tau them nyiaj tshwj xeeb rau kev tiv thaiv overheating thaum extrusion deformation. Cov txheej txheem extrusion ntawm titanium alloy yog qhov nyuaj dua li ntawm aluminium alloy, tooj liab alloy, thiab txawm hlau, uas yog txiav txim los ntawm lub cev tshwj xeeb thiab tshuaj lom neeg ntawm titanium alloy. Thaum cov titanium alloy yog tsim los ntawm cov pa kub rov qab extrusion, qhov kub ntawm qhov tuag yog tsawg, qhov kub ntawm qhov chaw ntawm lub billet nyob rau hauv kev sib cuag nrog cov tuag poob sai sai, thiab qhov kub ntawm lub sab hauv ntawm lub billet nce vim lub tshav kub. ntawm deformation. Vim tias qhov qis thermal conductivity ntawm titanium alloys, tom qab qhov kub thiab txias poob, cov cua sov ntawm cov txheej txheem sab hauv tsis tuaj yeem hloov mus rau txheej txheej hauv lub sijhawm ntxiv, thiab txheej txheej tawv tawv yuav tshwm sim, ua rau nws nyuaj rau txuas ntxiv deformation. . Nyob rau tib lub sijhawm, txheej txheej saum npoo thiab txheej sab hauv yuav muaj qhov kub thiab txias, thiab txawm tias lawv tuaj yeem tsim tau, nws yooj yim ua rau deformation thiab cov ntaub so ntswg tsis sib xws.
4. Forging kev ua tau zoo
Titanium alloys yog rhiab heev rau forging txheej txheem tsis. Kev hloov pauv ntawm qhov kub thiab txias, deformation, deformation, thiab qhov txias txias yuav ua rau muaj kev hloov pauv hauv microstructure thiab cov khoom ntawm titanium alloys. Txhawm rau kom tswj tau qhov microstructure zoo dua thiab cov khoom ntawm forgings, nyob rau hauv xyoo tas los no, cov thev naus laus zis thev naus laus zis xws li kub tuag forging thiab isothermal forging tau siv dav hauv kev tsim cov titanium alloys.
Lub plasticity ntawm titanium alloy nce nrog qhov nce hauv qhov kub thiab txias. Nyob rau hauv qhov kub thiab txias ntawm 1000-1200 degree, lub plasticity ncav cuag tus nqi siab tshaj plaws, thiab qhov tso cai deformation degree nce mus txog 70 feem pua -80 feem pua. Lub titanium alloy forging kub ntau yog nqaim, thiab nws yuav tsum nruj me ntsis tswj raws li qhov (ntxiv rau) / hloov kub (tshwj tsis yog rau ingot qhib), txwv tsis pub, cov nplej yuav loj hlob hnyav, txo cov chav tsev kub plasticity; titanium alloys feem ntau yog nyob rau hauv (ntxiv rau) Forging nyob rau hauv ob-theem cheeb tsam, vim hais tias lub forging kub saum toj no (ntxiv rau) / theem transformation kab yog siab dhau lawm, nws yuav ua rau brittle theem, thiab thawj forging thiab zaum kawg forging ntawm titanium alloy yuav tsum tau. siab dua (ntxiv rau) / beta hloov pauv kub. Lub deformation tsis kam ntawm titanium alloys nce sai nrog qhov nce ntawm deformation ceev, thiab qhov kub ntawm forging muaj kev cuam tshuam ntau dua rau qhov deformation tsis kam ntawm titanium alloys. Yog li ntawd, pa forging yuav tsum tau ua kom tiav nrog qhov tsawg kawg nkaus txias nyob rau hauv lub forging tuag. Cov ntsiab lus ntawm cov ntsiab lus interstitial (xws li O, N, thiab C) kuj tseem muaj txiaj ntsig zoo rau kev tswj hwm ntawm titanium alloys.
