Taw qhia rau TA7 titanium alloy

TA7 alloy yog nruab nrab-lub zog - hom titanium alloy (Ti-5Al{11}}2.5Sn) uas tsis tuaj yeem ua kom muaj zog los ntawm kev kho cua sov. Nws feem ntau yog siv nyob rau hauv lub xeev annealed thiab muaj zoo tawg toughness ntawm chav tsev kub thiab kub. Cov hlau muaj cov khoom siv vuam zoo thiab tsim nyog rau tungsten electrode thiab hlau electrode vuam txheej txheem nyob rau hauv inert roj tiv thaiv. Nws tuaj yeem siv los tsim cov khoom xws li receiver casings thiab phab ntsa panels. Lub alloy lub sijhawm ntev -lub sijhawm ua haujlwm kub tuaj yeem ncav cuag 500 degree, thiab nws lub sijhawm ua haujlwm luv luv tuaj yeem ncav cuag 800 degree. TA7ELI alloys nrog qis interstitial impurity ntsiab yog tsim rau siv nyob rau hauv qis kub. Cov khoom lag luam ib nrab ua tiav suav nrog cov phaj, tuav, ncuav thiab cov nplhaib, thiab lwm yam, uas tuaj yeem siv los tsim cov castings.

Thov rau Cov Qauv Dawb

1) Annealing: Annealing kev kho mob yog ua raws li cov khoom sib txawv semi- tiav. Cov parameter tshwj xeeb yog raws li nram no:

Phaj: Kub 700 - 800 degree, lub sijhawm 10-120 feeb, cua txias.

Bars thiab forgings: Kub 750 - 850 degree, lub sij hawm 0.5-4 teev, cua txias.

Casting: kub 600 - 700 degree, lub sij hawm 1-2 teev, cua txias los yog rauv cua txias.

2) Stress relief annealing: Txhawm rau tshem tawm cov kev ntxhov siab seem, cov tsis muaj raws li hauv qab no:

Kub yog 540-650 degree, lub sij hawm yog 15 - 360 feeb, cua txias los yog cua sov cua sov.

3) Kub isostatic nias kev kho mob ntawm castings: siv los txhim kho cov kev ua tau zoo ntawm castings. Cov parameter tshwj xeeb yog raws li nram no:

Nyob rau hauv argon siab ntawm 100 - 140MPa, qhov kub thiab txias yog 910℃± 10 degree, lub sij hawm yog 2 - 2.5 teev, thiab lub cub tawg yog txias rau hauv qab 300 degree.

Cov txheej txheem smelting thiab casting ntawm TA7 titanium alloy suav nrog cov kauj ruam hauv qab no:

1) Smelting: Lub ingot xav tau ntau tshaj ob lub tshuab nqus tsev electrode arc rauv smelting. Thaum lub sij hawm smelting txheej txheem, cov alloying ntsiab aluminium (Al) thiab tin (Sn) ntxiv nyob rau hauv daim ntawv ntawm AI-Sn master alloy. Thaum vuam consumable electrodes, siv argon shielded plasma vuam txoj kev, thiab tungsten argon arc vuam yog nruj me ntsis txwv tsis pub.

2) Casting: Castings tuaj yeem nrum siv cov txheej txheem sib txawv, suav nrog cov hauv qab no:

Graphite ua hom: Siv cov khoom siv graphite ua pwm thiab muab pov rau hauv lub tshuab nqus tsev electrode arc condensation rauv.

Graphite tamping hom: Cov khoom siv graphite kuj yog siv los ua pwm thiab nrum hauv lub tshuab nqus tsev siv hluav taws xob arc condensation rauv, tab sis cov txheej txheem tamping tau ntxiv rau cov txheej txheem los txhim kho qhov ntom ntom thiab cov qauv sib xws ntawm cov casting.

Hom Hlau: Siv cov khoom siv hlau ua pwm thiab muab pov rau hauv lub tshuab nqus tsev siv hluav taws xob arc condensation rauv.

Peev casting pwm: Siv peev casting tshuab, molten TA7 titanium alloy yog txhaj rau hauv pwm thiab solidified thiab txias.

Los ntawm cov txheej txheem saum toj no, cov smelting thiab casting ntawm TA7 titanium alloy tuaj yeem pom tau.

TA7 titanium alloy muaj corrosion kuj zoo nyob rau hauv ib txwm atmospheric thiab seawater tej yam kev mob. Txawm li cas los xij, piv nrog TC4 titanium alloy, TA7 alloy yog rhiab heev rau thermal ntsev kev nyuaj siab corrosion.

Nyob rau hauv ib puag ncig uas npog nrog cov ntsev hiav txwv ntsev, kev ntxhov siab corrosion yuav tshwm sim thaum TA7 alloy raug rau qhov kub ntawm 316℃thiab kev ntxhov siab ntawm 207MPa rau 100 teev. Qhov no txhais tau hais tias nyob rau hauv qhov kub thiab txias siab, TA7 alloy yuav raug corroded thiab raug kev puas tsuaj rau qee qhov kev puas tsuaj.

Yog li ntawd, thaum tsim thiab siv TA7 alloy, nws yog ib qho tsim nyog yuav tau xav txog tej yam xws li qhov kub thiab txias, kev ntxhov siab thiab tshuaj lom neeg ntawm ib puag ncig, tshwj xeeb tshaj yog nyob rau hauv qhov kub thiab txias, kev nyuaj siab thiab ntsev corrosion ib puag ncig, thiab ua raws li cov kev tiv thaiv corrosion tsim nyog los xyuas kom meej lub alloy lub durability. Lub sij hawm ntev stability thiab kev cia siab.

TA7 titanium alloy muaj cov khoom siv vuam zoo. Kev siv tungsten arc vuam (TIG) los yog hlau arc vuam (MIG) nyob rau hauv inert roj tiv thaiv tuaj yeem ua rau cov hlau tsis muaj zog ntawm qhov kub tsawg.

Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias titanium alloys yog cov teeb meem brittleness cuam tshuam nrog intermetallic compounds thaum lub sij hawm brazing txheej txheem, yog li brazing feem ntau siv tsawg. Hauv kev sib piv, vuam txoj kev xws li argon arc vuam, qhov chaw vuam thiab seam vuam yog ntau dua.

Argon arc vuam pob qij txha muaj lub zog siab coefficient ntawm chav tsev kub, qhov kub thiab txias. Lub seam welded sib koom ua ke muaj lub zog ntau dua coefficient ntawm chav tsev kub thiab kub, tab sis lub zog coefficient qis dua ntawm qhov kub thiab txias.

1) Tuag forgings thiab nplhaib qhov chaw: TA7 alloy feem ntau yog siv los tsim lub cav adapters, pem hauv ntej casings, sealing nplhaib casings thiab lwm yam. Cov khoom no xav tau lub zog siab thiab kub tsis kam, thiab TA7 alloy tuaj yeem ua tau raws li cov cai no.

2) Phaj kub xovxwm tsim qhov chaw: TA7 alloy daim hlau tuaj yeem ua rau hauv ob sab phlu, bracket rooj, phab ntsa panels thiab lwm qhov chaw los ntawm cov txheej txheem kub xovxwm. Cov khoom no feem ntau yog siv rau hauv cov qauv kev txhawb nqa thiab bulkheads ntawm lub dav hlau, thiab xav tau lub zog siab thiab lub teeb yuag.

Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias TA7 alloy yog rhiab rau cov ntsiab lus ntawm interstitial cov ntsiab lus thiab impurities, tshwj xeeb tshaj yog thaum siv nyob rau hauv ultra- qhov kub thiab txias. Yog li ntawd, lub purity ntawm alloy Cheebtsam yuav tsum tau nruj me ntsis tswj nyob rau hauv lub manufacturing txheej txheem kom tsis txhob muaj teeb meem brittleness tshwm sim los ntawm impurities.

Feem ntau, TA7 titanium alloy yog dav siv nyob rau hauv ntau qhov chaw hauv kev lag luam aviation vim nws lub zog siab, kub tsis kam thiab lub teeb yuag.

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Peb lub Hoobkas tshwj xeeb hauv kev lag luam thoob ntiaj teb ntawm cov khoom siv titanium, kev tsim khoom zoo siab - cov khoom lag luam zoo xws li titanium raj, titanium tuav, titanium daim hlau, titanium xov hlau, thiab titanium strips. Lub Hoobkas tau nruab nrog thoob ntiaj teb kev tsim khoom thiab kev sim cov cuab yeej, suav nrog precision forging units, siab -ceev txias dov mills, lub tshuab nqus tsev melting furnaces, CNC spinning tshuab, nruam kos duab ntau lawm kab, thiab automated nto kho tshuab. Coupled nrog precision xeem ntsuas xws li spectrometers thiab ultrasonic flaw detectors, peb xyuas kom meej tswj tag nrho cov txheej txheem los ntawm raw cov ntaub ntawv mus rau cov khoom tiav. Peb tau cog lus los muab cov neeg siv khoom thoob ntiaj teb nrog cov khoom siv titanium uas muaj kev ua tau zoo thiab muaj ntau yam kev qhia tshwj xeeb los ntawm cov txheej txheem ruaj khov thiab txhim khu kev qha thiab kev tswj xyuas nruj, ua tau raws li cov kev xav tau ntawm siab -kawg industries xws li lub zog, tshuaj, aerospace, thiab kev kho mob.

Peb muab qhov tseem ceeb rau kev nyab xeeb kev thauj mus los thiab kev xa khoom zoo ntawm peb cov khoom. Tag nrho cov ntaub ntawv titanium tau ntim khoom siv nruj kev lag luam- qib kev daws teeb meem: titanium raj thiab cov tuav tau txais kev tiv thaiv- xeb, raug kaw ntom ntom nrog cov yeeb yaj kiab tsis muaj dej, thiab tom qab ntawd muab tso rau hauv cov thawv ntoo lossis hlau txuas nrog cov dej noo- cov ntaub ntawv pov thawj, nrog cov ntaub ntawv ntxiv los tiv thaiv kev sib tsoo thiab kev sib tsoo thaum lub sijhawm thauj mus los. Titanium daim hlau thiab strips yog them nrog zaj duab xis tiv thaiv, haum nrog ntug tiv thaiv, sib cais los ntawm txheej nrog ya raws - ntawv pov thawj, thauj khoom mus rau cov ntoo lossis steel pallets ruaj khov, thiab ruaj khov nrog cov hlua steel. Cov xov hlau titanium zoo zoo yog coiled mus rau qhov tshwj xeeb spools thiab encapsulated hauv cov thawv kaw uas tsis muaj dej tsis zoo thiab tsis muaj plua plav. Txhua lub ntim ntim nrog cov ntawv qhia meej cov khoom, daim ntawv pov thawj cov khoom, thiab cov dej noo- cov ntaub ntawv pov thawj, kom ntseeg tau tias cov khoom tsis zoo, muaj cov ntawv sau meej meej, thiab xa mus rau cov neeg siv khoom thoob ntiaj teb kom ruaj ntseg los ntawm kev thauj mus los hauv hiav txwv ntev thiab ntau yam.

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