Rau cov neeg feem coob, titanium txhais tau tias ib yam: hnav, muaj zog, thiab hwm.
Tab sis rau cov khoom siv engineers, muaj qhov sib txawv loj ntawm kev lag luam ntshiab titanium thiab siab -kev ua tau zoo titanium alloys.
Thiab ntawm tag nrho cov titanium alloys, ib qib sawv saum tus so:
Qib 5 Titanium (Ti-6Al-4V, TC4) - titanium alloy siv thoob ntiaj teb.
Los ntawm cov khoom siv dav hlau lub cav thiab cov khoom cog orthopedic rau offshore li qub thiab siab -kev ua haujlwm ntawm tsheb, Ti-6Al-4V yog lub pob txha ntawm kev tsim khoom niaj hnub.
Tab sis ntawm no yog qhov tseeb:
Qhov ua tau zoo ntawm Ti-6Al-4V tsis yog tsim nyob rau hauv lub qhov cub melting - nws yog tsim thaum lub sij hawm forging.
Titanium alloy forging yog ntau tshaj li shaping hlau. Nws yog cov txheej txheem tswj tau zoo uas suav nrog:
kev tswj qhov kub thiab txias
tswj deformation
microstructure refinement
grain loj engineering
residual stress txo
aerospace-qib kev ruaj ntseg
Hauv lwm lo lus:
Forging yog txheej txheem uas muab titanium nws muaj tseeb lub zog.
Vim li cas Ti-6Al-4V (Qib 5 / TC4) yog ob qho tib si tseem ceeb thiab nyuaj
Ti-6Al-4V (Qib 5) yog qhov dav tshaj plaws titanium alloy thoob ntiaj teb.
Tej yam khoom muaj xws li:
Alpha-beta theem qauv
Beta transus nyob ib ncig ntawm 995℃(nws txawv nrog chemistry thiab ua)
Tensile zog feem ntau siab dua 895 MPa
Kev qaug zog zoo heev
Superior corrosion kuj
Zoo heev biocompatibility
Nws yog qhov zoo tshaj plaws alloy rau:
Aerospace qauv forgings
Turbine compressor Cheebtsam
Kev kho mob implants
Motorsport fasteners
Cov khoom siv tshuaj ua haujlwm
Additive manufacturing feedstock
Txawm li cas los xij, nws cov thermal conductivity tsawg thiab muaj zog reactivity ntawm qhov kub thiab txias ua rau nws yog ib qho ntawm cov kev xav tau tshaj plaws engineering alloys los ua kom tiav.
Vim li cas Forging Matters: Hloov cov qauv Casting rau hauv siab -Kev Ua Haujlwm Microstructure
Raws li - nrum titanium muaj:
coarse nplej
kev cais
internal porosity
tsis yog -cov khoom sib xws
Los ntawm kev tswj forging, cov qauv no tau hloov mus rau hauv:
zoo equiaxed nplej
txhim kho qhov ceev
uniform alpha-beta faib
txhim khu kev ua haujlwm qaug zog
superior puas toughness
Qhov no microstructural refinement ncaj qha txhim kho:
Yield zog
Ductility
Nthuav lub neej
Ultrasonic inspectability
Ntev - kev cia siab rau lub sijhawm
Rau aerospace thiab cov khoom siv kho mob, qhov kev hloov pauv no yog qhov tseem ceeb.
Peb Qhov Tseem Ceeb Ntawm Titanium Alloy Forging
1. Precision Temperature Control - Qhov txawv ntawm 10℃tuaj yeem hloov tau txhua yam
Titanium alloys yog rhiab heev rau forging kub.
Pom zoo forging ntau rau Ti-6Al-4V:
Kwv yees li ntawm 900-950℃rau ntau yam kev ua haujlwm forging
Yog tias kub siab heev:
Grain coarsening tshwm sim
Kev qaug zog txo qis
Cov khoom siv tshuab ua tsis sib xws
Yog tias qhov kub thiab txias qis dhau:
Nthuav kev nyuaj siab nce sharply
Cracking txaus ntshai
Tuag loads nce
Niaj hnub nimno forging chaw siv:
Ntau -zone furnaces
Infrared ntsuas kub ntsuas
Thermocouples
Cov txheej txheem digital kaw
Hauv titanium forging, txhua qib tseem ceeb.
2. Loj Hydraulic Presses - Uniform Force rau Uniform Properties
Kev vam meej titanium forging yog nyob ntawm kev tswj thiab sib faib deformation.
Heavy-lub luag haujlwm hydraulic xovxwm muab:
ruaj khov siab
Tswj tus nqi strain
Sib sib zog nqus sab hauv deformation
Zoo heev repeatability
Cov txiaj ntsig muaj xws li:
Kaw cov voids sab hauv
Txo kev cais tawm
Txhim kho grain refinement
Cov khoom sib xws los ntawm qhov chaw mus rau qhov chaw
Qhov no yog vim li cas aerospace titanium forgings feem ntau ua rau loj -tonnage hydraulic presses.
3. Pab neeg txawj txawj ntse - Tib neeg kev txawj ntse tseem tseem ceeb
