Titanium phaj metallurgy txuj ci tsim nyog rau kev lag luam tsheb
GR1 GR2 GR3 GR4 titanium ntawv Muaj cov yam ntxwv ntawm qhov ntom ntom ntom, muaj lub zog muaj zog thiab corrosion tsis kam, thiab muaj cov peev txheej zoo nyob hauv kev lag luam automotive. Kev siv cov titanium thiab titanium alloys hauv tsheb tuaj yeem txuag roj, txo cov suab nrov ntawm lub cav thiab kev co, thiab txhim kho lub neej expectancy. Txawm li cas los xij, rau lub sijhawm ntev, cov khoom siv tsheb tau ua haujlwm los ntawm steel, Al thiab lwm yam khoom siv. Txhawm rau nkag mus rau hauv kev lag luam automotive, ntxiv rau nws cov kev ua haujlwm zoo, tus nqi yuav tsum tau txo qis ntxiv mus rau qib uas tau txais kev lag luam tsheb. Ti titanium phaj metallurgical qhov chaw rau tsheb yog ib thaj chaw uas muaj lub zeem muag mus ntev, tab sis tam sim no txwv los ntawm cov khoom xws li tus nqi, daim ntawv thov kev txhawb nqa yog tsim maj mam. Kev siv cov titanium phaj metallurgy thev naus laus zis los npaj Ti titanium phaj metallurgical qhov chaw tuaj yeem tsis tsuas yog txo tus nqi xwb, tab sis kuj pab txhawb Ti thiab nws cov alloys hauv kev lag luam tsheb, ua rau nws ua lwm daim ntawv thov loj tom qab kev lag luam aerospace qeb. Txoj kev loj hlob ntawm tus nqi qis titanium thiab nws cov hlau alloy titanium daim hlau tuaj yeem muab cov khoom siv qis qis rau titanium-titanium phaj metallurgical qhov chaw rau tsheb. Los ntawm cov thev naus laus zis uas twb muaj lawm, tsim nyog rau kev lag luam tsheb feem ntau muaj cov ntaub so ntswg lub cev hmoov txoj kev, txoj kev hydrodehydrogenation thiab hlau hydride kho txoj kev uas siv hauv kev lag luam tsheb.
1, Daim txhuam cev hmoov txoj kev. Qhov no tam sim no yog ib txoj hauv kev uas tuaj yeem ua tau raws li qhov xav tau ntawm kev lag luam tsheb rau titanium daim hlau raws li tus nqi. Nws tsuas yog siv lub cev daim txhuam cev thiab cov khoom seem hauv cov txheej txheem los tsoo nws; qhov tau txais titanium daim hlau feem ntau yog thicker thiab richer. Cl lub ntsiab. Lub Tuam Txhab Huachang ntawm Tebchaws Meskas siv cov txheej txheem roj los txuas ntxiv qhia TiCl4 thiab Mg vapor rau hauv tubular rauv ntawm 850 degree C kom sai sai tsim cov hmoov zoo Ti thiab MgCl2, tab sis nws yog ib qho nyuaj rau cais cov hmoov zoo ntawm MgCl2 thiab muaj siab. O cov ntsiab lus; Nyiv tau tsim ib txoj kev Txau cov tshuaj tiv thaiv, cov roj yog txau rau hauv cov kua Mg kom nws hnov mob rau daim ntawv. Qhov kev ntsuam xyuas qhia tau hais tias rau txhua 100 grams ntawm Mg thiab 400 grams ntawm TiCl4, txog 100 grams ntawm Ti hmoov nrog ib tug particle loj ntawm kaum ntawm microns yuav tsum tau npaj, thiab cov efficiency ntau lawm yog ob npaug. , Tus nqi yog txo los ntawm 50%, thiab nws yuav tsum tau siv los ua raw khoom rau titanium phaj metallurgy Ti khoom.
2, Hydrodehydrogenation txoj kev. Vim tias qhov loj me me ntawm cov khoom siv titanium phaj, tus nqi qis, tsis tshua muaj kev cai nruj ntawm cov khoom siv raw, thiab kev siv tshuab yooj yim dua, txoj kev no tau dhau los ua txoj hauv kev tseem ceeb ntawm kev tsim Ti hmoov hauv tsev thiab txawv teb chaws tom qab xyoo ntawm kev txhim kho thiab nce qib. Txawm li cas los xij, titanium phaj npaj los ntawm txoj kev no feem ntau muaj cov ntsiab lus siab ntawm O thiab N. Tuam Tshoj Northwest Nonferrous Metals Research Institute txais kev siv tshuab hydrogenation dehydrogenation rau hydrogenate ingots los tsim cov ntawv zoo titanium nrog qis O, N, thiab Cl. Nws muaj kev ua tau zoo heev thiab tam sim no muaj peev xwm tsim titanium daim hlau nrog O cov ntsiab lus tsawg dua 0.20%. titanium daim hlau tau tsim ntau thiab xav tias yuav muab cov titanium-titanium ruaj khov daim hlau rau tsheb titanium phaj metallurgical qhov chaw. Nyiv lub Toho Titanium Co., Ltd. tau siv cov thev naus laus zis tshiab los npaj Ti hmoov nrog qhov loj me me ntawm 150 microns thiab O cov ntsiab lus tsawg dua 0.15%. Raws li qhov kev tshawb fawb no, Toho Titanium Co., Ltd. tau nqis peev ib billion yen los tsim ib txoj kev hydrodehydrogenation nrog ib xyoos twg ntawm 30 tons Ti hmoov ntau lawm kab.
3, Hlau hydride rov qab txoj kev. TiCl4 tuaj yeem rov qab los ntawm hydrogen ntawm 3500 degree, thiab TiO2 tuaj yeem rov qab los ntawm cov cua kub siab tshaj 1800 degree. Txhawm rau txo qis cov tshuaj tiv thaiv kub, cov kws tshawb fawb los ntawm yav dhau los Soviet Union tau thov kom rov qab TiO2 thiab TiCl4 nrog CaH2, uas tuaj yeem nqa tawm ntawm qhov kub ntawm 1100-1200 degree, thiab cov tshuaj tiv thaiv yuav tsim TiH2, thiab tom qab ntawd tshem tawm H. kom tau Ti hmoov. Vim tias tsis muaj Cl keeb los koom nrog cov tshuaj tiv thaiv hauv txoj kev no, titanium daim hlau nrog cov ntsiab lus Cl tsawg heev tuaj yeem tau txais. Nws tau hais tias nws cov nqi tsuas yog ib feem peb ntawm cov txheej txheem hydrodehydrogenation ib txwm, thiab nws twb tau mus txog theem ntawm kev npaj ntau lawm (Baoji Lihua Nonferrous Metals). Txawm hais tias Ti hmoov uas tsim los ntawm txoj kev no muaj cov ntsiab lus H siab dua, nws tau tshaj tawm tias qhov muaj me me ntawm H yog qhov zoo rau sintering ntawm titanium phaj thiab txhim kho microstructure, thiab tuaj yeem raug tshem tawm tag nrho hauv lub tshuab nqus tsev sintering tom ntej. thiab txheej txheem annealing.
