Titanium thiab titanium alloy hlaukev kos duab yog txheej txheem hlau yas deformation nyob rau hauv uas ib tug pas nrig los yog hlau dawb paug yog maj mam txo mus rau hauv me me ntoo khaub lig-section hlau los ntawm kos quab yuam thov ntawm ib tug tuag.
Xav txog nws zoo li txhais tes-rub noodles-tab sis nrog qhov tseeb dua, qhov nyuaj dua, thiab cov txheej txheem tswj nruj heev.
Main Titanium Wire Drawing Methods (Qhov Koj Yuav Pom Zoo Li Cas)
Thaum koj soj ntsuam cov chaw muag khoom ntawm titanium hlau tsim, koj yuav ntsib cov duab sib txawv:
Fixed Die Drawing (Feem ntau)
Koj rub titanium los ntawm ib qho nyuaj tuag (zoo li lub nplhaib nruj).
- Qhov zoo tshaj plaws rau: txheem titanium hlau, precision hlau
- Advantage: cov txheej txheem ruaj khov, siab qhov tseeb
- Saib xyuas: tuag hnav nce tus nqi dhau sijhawm
Roller Tuag Drawing
Siv rotating rollers es tsis txhob faus tuag.
- Best for: thicker wire (>1mm titanium pas nrig txo)
- Advantage: qis kev sib txhuam, lub neej ntev lub cuab yeej
- Saib xyuas: ntau dua cov khoom siv complex
Ultrasonic Vibration Drawing
Cov tuag vibrates ntawm high zaus kom txo kev sib txhuam.
- Zoo tshaj plaws rau: ultra- zoo titanium hlau (<1mm)
- Advantage: smoother nto, txo qhov kev pheej hmoo tawg
- Saib xyuas: siab dua peev peev
Coated Bundle Drawing
Ntau cov xov hlau raug kos ua ke nrog kev txhawb nqa txheej, tom qab ntawd sib cais.
- Qhov zoo tshaj plaws rau: ultra- hlau zoo (kev kho mob titanium hlau, nqes mus rau<0.05mm)
- Advantage: enables tsis tshua muaj zoo hlau ntau lawm
- Saib xyuas: ntau cov kauj ruam ua thiab kev kho tshuaj
Kev Tswj Kub Kub hauv Titanium Hlau Drawing
Kub yog qhov tseem ceeb hauv titanium alloy hlau ntau lawm, tshwj xeeb tshaj yog rau qib zoo li Ti-6Al-4V (Qib 5).
Kev kos duab txias (feem ntau)
Ua nyob rau hauv chav tsev kub.
- Txo txoj kab uas hla maj mam (feem ntau 10-15% ib zaug)
- Yuav tsum muaj ntau qhov nruab nrab annealing cov kauj ruam
- Dav siv nyob rau hauv aerospace titanium hlau ntau lawm
Kev kos duab sov (400-700 degree)
- Txhim kho plasticity los ntawm dynamic recrystallization
- Siv rau kev nyuaj -- tsim titanium alloys
- Pab txo cov hlau tawg
Kub Drawing (Tsis tshua muaj rau Titanium)
- Saum toj no recrystallization kub
- Feem ntau siv rau refractory hlau zoo li tungsten
- Tsis tshua muaj nyob rau hauv titanium hlau manufacturing
Lubrication Methods (Key rau Nto Zoo)
Hauv kev kos duab txias titanium hlau, lubrication txiav txim siab qhov chaw tiav thiab qhov tsis xws luag.
- ntub lubrication: roj los yog emulsions rau loj ntau lawm
- Qhuav lubrication: graphite lossis MoS₂ rau qhov chaw tshwj xeeb
- Txheej lubrication: tooj liab txheej los yog oxide txheej txhim kho adhesion thiab txo qhov galling
Zoo lubrication yog qhov tseem ceeb kom tsis txhob tuag sticking thiab nto tawg.
Titanium thiab titanium alloy hlau tsim txheej txheem
Kauj Ruam 1: Kev Npaj Khoom Raw
High-purity titanium daim txhuam cev yog melted rau hauv titanium ingots, uas yog ces forged los yog dov rau hauv rods los ua raw khoom rau hlau kos duab. Ua ntej ua tiav, qhov saum npoo feem ntau yog cov kua qaub-pickled kom tshem tawm oxide nplai thiab impurities.
Lub purity ntawm raw khoom ncaj qha txiav txim siab lub zog, corrosion kuj, thiab stability ntawm titanium hlau. Cov khoom siv raw tsis zoo yuav ua rau tsis zoo rau kev ua haujlwm tom ntej.
Kauj ruam 2: Nto ua ntej-Kev kho mob
Lub titanium pas nrig nto yog raug rau oxidation kev kho mob los yog tooj liab plating, ua raws li los ntawm daim ntawv thov ntawm ib tug lubricant kom txo tau kev sib txhuam thaum lub sij hawm daim duab txheej txheem nrog cov tuag.
Kauj Ruam 3: Cov Txheej Txheem Hlau Drawing
Lub titanium pas nrig yog maj mam txo nyob rau hauv txoj kab uas hla los ntawm ib tug series ntawm daim duab tuag. Ntau qhov nruab nrab annealing cov kauj ruam yuav tsum tau ua ua ntej txuas ntxiv cov txheej txheem kos duab kom txog thaum lub hom phiaj txoj kab uas hla tiav.
Cov txheej txheem kos duab txiav txim siab qhov tseeb qhov tseeb thiab kev ua tau zoo sib xws ntawm titanium hlau. Cov neeg tsim khoom nrog cov txheej txheem paub tab tuaj yeem ua kom cov khoom zoo sib xws.
Kauj Ruam 4: Ua tiav thiab tshuaj xyuas
Cov hlau tiav tiav tau txais cov kua qaub pickling, polishing, los yog straightening, ua raws li kev soj ntsuam rau txoj kab uas hla, qhov zoo ntawm qhov chaw, thiab qhov tsis xws luag.
Cov qauv kev soj ntsuam nruj me ntsis ua rau cov khoom ruaj khov dua thiab txo cov kev pheej hmoo hauv cov ntawv thov hauv qab.
Vim li cas titanium hlau nyuaj los tsim?
1. Muaj peev xwm Plastic Deformation
Siab -Oxygen titanium alloys (O > 0.3%) muaj kev poob qis hauv cov khoom siv vim muaj kev sib txuam ntawm cov khoom sib txuas ntxiv. Txhawm rau txhim kho plasticity, sov dov ua ntej- deformation (400-700 degree) lossis thermo-txheej txheem txheej txheem (txias kos duab ua ke nrog luv luv-lub sij hawm annealing) yog yuav tsum tau.
2. Lub zog – Ductility Trade-tawm
Raws li cov hlau tau kos rau cov kab me me, nws lub zog nce; txawm li cas los xij, nws kuj dhau los ua nkig. Tom qab annealing, cov khoom yuav softer dua, tab sis lub zog txo raws li.
3. Die Galling (Sticking) Teeb meem
Titanium nyiam "weld" los yog ua raws li cov khoom siv tuag thaum ua. Qhov no tuaj yeem ua rau muaj qhov tsis xws luag xws li tev thiab pitting ntawm cov hlau kos.
Kev Tshawb Fawb Thoob Ntiaj Teb Kawg hauv Titanium Hlau Drawing
1. Pulsed Electric Current Drawing (EPT)
Siv cov hluav taws xob hluav taws xob tam sim no thaum lub sij hawm kos duab yuav pab txo qis kev sib txuam thiab ua kom ceev ciam ciam diffusion. Qhov no txhim kho cov ductility ntawm titanium alloys thiab txo qhov kev pheej hmoo ntawm cov hlau tawg.
Cov txheej txheem no tso cai rau ib qho siab dua - dhau qhov kev txo qis, txo tus naj npawb ntawm cov voj voog nruab nrab, thiab yog li txo qis kev siv hluav taws xob, txo lub sij hawm tsim khoom, thiab txo tag nrho cov nqi tsim khoom.
2. Staggered Die Layout (ADD txheej txheem)
Los ntawm kev npaj cov duab tuag nyob rau hauv ib qho uas tsis yog -linear, staggered configuration, ib tug multi- txoj kev strain yog qhia. Qhov no txhawb nqa cov nplej ua kom zoo dua qub thiab ua kom muaj ntau lub tshuab plam, txhim kho lub zog thiab ductility.
Cov hlau uas ua tau tuaj yeem ua tiav lub zog tensile siab tshaj 1000 MPa thaum tuav zoo toughness, ua rau nws haum rau aerospace Cheebtsam thiab kev kho mob cog daim ntaub ntawv.
3. Tsau Tuag Drawing nrog Optimized Thaum tshav kub kub kho
Yog tias tsis muaj kev txhim kho cov cuab yeej kos duab uas twb muaj lawm, kev ua kom zoo dua cov duab kos duab txias ua ke nrog kev kho cua sov tuaj yeem ua rau lub zog tensile ntawm TC4 (Ti-6Al-4V) xaim mus rau ntau dua 1400 MPa, uas sawv cev rau kev txhim kho ntau dua 30% piv rau cov txheej txheem ib txwm muaj.
Txoj hauv kev no yuav tsum tsis muaj kev nqis peev ntxiv rau cov cuab yeej cuab tam thiab tsim nyog rau kev ua haujlwm siab - cov ntawv thov xws li fasteners thiab caij nplooj ntoos hlav xov hlau.
4. Oxygen Control thiab Alloying Optimization
Los ntawm kev ntxiv cov lej ntawm yttrium los yog siv cov txheej txheem tshwj xeeb, cov pa oxygen diffusion thaum lub sij hawm ua haujlwm siab -kub yuav ua tau zoo suppressed, tiv thaiv cov khoom embrittlement.
Cov thev naus laus zis no ua rau kev siv cov khoom siv titanium rov ua dua thaum tswj kev ua haujlwm ntawm cov khoom siv, txo cov nqi thiab txhawb ESG- ua raws thiab qis - cov tswv yim tsim cov pa roj carbon monoxide.
Thaum kawg Takeaway
Yog tias koj muab khoomtitanium hlaurau aerospace, kev kho mob, lossis siab -kev ua haujlwm hauv kev lag luam, cov txheej txheem tsim khoom ncaj qha txiav txim siab:
- nto zoo
- mechanical zog
- sib xws ntawm batch
- ntev - kev cia siab rau lub sij hawm
Kev nkag siab txog kev kos duab kos duab thev naus laus zis pab koj xaiv tus neeg xa khoom uas tuaj yeem ua tau raws li aerospace-qib lossis kev kho mob- qib yuav tsum tau ua- tsis yog cov qauv kev lag luam hlau xwb.