Txhawm rau txo tus nqi ntawm cov khoom siv titanium alloy, nws yog ib qho tsim nyog los tsim cov txheej txheem tshiab uas tsis muaj nqi thiab txhim kho cov txheej txheem ntau lawm:
1. Txo tus nqi ntawm cov khoom siv raw
Titanium muaj lub siab melting point, nquag chemistry thiab muaj zog tshuaj affinity nrog O, H, N thiab C, uas ua rau nws nyuaj rau extract ntshiab titanium. Kroll magnesium txo txoj kev yog siv dav hauv kev tsim cov titanium daim txhuam cev. Kroll magnesium txo cov txheej txheem siv rau kev tsim cov titanium daim txhuam cev yog txoj hauv kev, nrog kev siv lub zog siab thiab lub sijhawm ua haujlwm ntev, thiab tsis tuaj yeem tsim ua ntu zus. Nyob rau tib lub sij hawm, ib tug loj npaum li cas ntawm magnesium hlau yuav tsum tau raws li ib tug txo tus neeg sawv cev, thiab cov nqi ntau lawm yog siab. Tam sim no, kev ua tiav tau ua tiav hauv cov txheej txheem ncaj qha electrochemical txo ntawm TiO2 hauv molten CaCl2 tsim los ntawm University of Cambridge. Txoj kev tsim cov titanium daim txhuam cev nrog lub voj voog luv luv thiab 40% tus nqi qis dua.
Feem ntau cov titanium alloys siv high-value V raws li ib tug alloying caij los txhim kho lub zog, thiab feem ntau ntawm cov alloying ntsiab siv Al-X raws li ib tug intermediate alloy. Hloov V nrog pheej yig alloying ntsiab xws li Fe thiab Cr yog ib txoj hauv kev zoo los txo tus nqi ntawm titanium alloys. Piv txwv li, Timet tsim Ti-1.5Al-6.8Mo-4.5Fe thiab Ti-6Al-1.Fe-0.1Si.
Nrog rau kev nce qib ntawm titanium smelting thev naus laus zis, nws yog ib txoj hauv kev zoo los txo tus nqi ntawm cov ntaub ntawv raw los siv cov khoom seem thiab cov khoom seem uas tsim tawm thaum lub sij hawm titanium tsim thiab ua raws li cov nqi hluav taws xob tom qab kev kho mob kom paub txog cov khoom siv rov ua dua tshiab.
2. Txo cov nqi ua haujlwm
Casting yog classic net (ze) txheej txheem molding. Cov khoom tsim tsis tas yuav tsum tau siv lub tshuab lossis machining tsawg, yog li txuag tau ntau ntawm cov hlau. Casting feem ntau tuaj yeem tsim cov khoom nrog cov duab nyuaj, tab sis cov khoom no yog tsim los ntawm lwm cov txheej txheem ib txwm muaj, uas yog qhov nyuaj thiab kim heev los tsim, tshwj xeeb tshaj yog titanium, uas muaj cov khoom siv zoo heev. Tam sim no, titanium castings tau siv dav hauv kev lag luam aerospace. Hauv kev lag luam automotive manufacturing, cov khoom tsim los ntawm cov txheej txheem casting muaj xws li li qub, turbochargers, thiab lwm yam. Powder metallurgy, raws li cov cuab yeej siv niaj hnub metallurgy thiab cov khoom siv, ua lub luag haujlwm tseem ceeb hauv kev lag luam titanium. Titanium hmoov metallurgy nyob ze-forming tshuab tuaj yeem ncaj qha tsim cov khoom tiav lossis ze-ua tiav qhov loj me, txo cov khoom siv raw, txo lub voj voog ua haujlwm, thiab txuag 20% mus rau 50% ntawm tus nqi piv nrog cov txheej txheem ib txwm muaj. Tam sim no, kev tshawb fawb ntawm titanium hmoov metallurgy yog nyob rau theem ntawm kev loj hlob sai, feem ntau suav nrog ntau yam: ua ntej, kev npaj tshuab ntawm cov khoom siv zoo thiab cov nqi qis titanium hmoov thiab nws cov kev lag luam; Thib ob, kev npaj thev naus laus zis ntawm titanium hmoov metallurgy, uas kuj tau siv dav hauv kev lag luam tsheb.
Laser txoj kev siv tshuab (*** laser technology, CAD / CAM technology thiab cov ntaub ntawv technology ua ke nrog cov tshiab tau) raws li lub computer qauv, *** nrog ib tug complex zoo ntawm qhov kawg qhov chaw yuav alloy hmoov ib zaug ncaj qha tsim, kev ua tau zoo ntawm cov khoom tsim titanium ntawm casting thiab forging.
3.Metal Powder Txhaj Moulding (MIM)
Nws yog qhov ceev-tsim nyob ze (net) ua hmoov metallurgy tshuab, uas tuaj yeem tsim cov khoom zoo, siab-precision complex qhov chaw. Nws raug suav hais tias yog ib qho ntawm cov khoom siv zoo tshaj plaws tam sim no muaj ***.
Titanium txheej thev naus laus zis kuj yog cov cuab yeej tshiab uas tuaj yeem txo cov nqi. Piv txwv li: automotive nres pads nrog titanium txheej rau saum npoo; new -TiAl li qub.
