TB2 alloy yog metastable -type titanium alloy, muaj isomorphic -stable ntsiab 5% Mo thiab 5% V, eutectoid -stable ntsiab 8% Cr, -stable ntsiab 3% Al, Mo sib npaug ntawm 18.15. Cov alloy muaj cov khoom txias txias zoo heev thiab zoo weldability nyob rau hauv cov tshuaj kho lub xeev, thiab muaj lub zog siab thiab zoo plasticity nyob rau hauv cov tshuaj aging xeev. Lub ntsiab qhov tsis zoo ntawm cov hlau yog siab ceev, tsis tshua muaj elastic modulus thiab kub creep kuj.
Cov khoom tseem ceeb ntawm cov khoom ua tiav ntawm cov hlau yog cov ntawv, sawb, ntawv ci, bar, hlau thiab lwm yam. Cov ntawv hlau tuaj yeem ua rau hauv cov ntawv hlau, cov hlab ntsha siab, cov khoom siv foob pob hluav taws lub cev muaj zog. Lub sawb tuaj yeem ua rau hauv lub hnub qub- xub xub txuas txoj siv. Cov ntawv ci tuaj yeem ua rau hauv corrugated plhaub thiab honeycomb qauv. Cov hlau tuaj yeem txias tau tawm ntawm ntau lub taub hau rivets, thiab tuaj yeem txias riveted thiab kub riveted, thiab cov rivets ncaj qha siv tom qab chim siab thiab riveting nyob rau hauv lub xeev ntawm cov khoom tov kho. Lub bar tuaj yeem txias taub hau tawm ntawm ntau lub taub hau bolts, uas tuaj yeem siv rau hauv kev kho mob hauv lub xeev lossis kev daws teeb meem kev laus.
Cov alloy yog tsim rau kev tsim aerospace fasteners uas ua haujlwm qis dua 300 degree C, thiab tseem tsim nyog rau kev tsim aerospace fasteners uas ua haujlwm rau lub sijhawm luv luv hauv qab 500 degree C.
TB2 technical standard
GB/T 3620 1-1994 "Titanium thiab titanium alloy qib thiab tshuaj muaj pes tsawg leeg"
GB/T 3620.
GB/T 3621-1994 "Titanium thiab titanium alloy sheet"
K/ JC-2-1984 "Tsev Kawm Ntawv Ib Ntus rau TB2 alloy Sawb rau Kev Sib Txuas Lus Satellites"
GJB 2219-1994 Specification rau Titanium thiab titanium alloy rods (xaim) rau Fasteners
TB2 kev kho cua sov system
(1) Cov khoom siv kho mob
Kev kho qhov kub thiab txias yog xaiv nyob rau hauv thaj tsam ntawm 750-800 degree C, qhov kev kho cov tshuaj ib txwm yog 800 degree C ± 10 degree C, 3-30min, cua txias lossis cua txias dua.
(2) Lub sijhawm txwv
Kev laus kub yog xaiv nyob rau hauv thaj tsam ntawm 450-550 degree C, thiab qhov kev laus ib txwm yog 500 degree C ± 10 degree C, 8-24h, cua txias lossis cua sov.
(3) Kev ntxhov siab ntxhov siab annealing
650-700 degree , 30-60min, cua txias lossis cub cua txias.
TB2 melting thiab casting txheej txheem
Cov hlau yuav tsum tau yaj los ntawm ntau tshaj ob lub tshuab nqus tsev electrode arc rauv.
TB2 daim ntawv thov txheej txheem cej luam thiab cov kev cai tshwj xeeb
Ntau yam kev qhia tshwj xeeb ntawm lub hnub qub thiab xub txuas cov hlua khi ua los ntawm TB2 alloy sawb tau siv nyob rau hauv kev lag luam aerospace ntev. Ntau lub taub hau rivets ua los ntawm TB2 alloy hlau los ntawm lub taub hau txias tau siv rau hauv kev lag luam aviation. Lub bar tuaj yeem txias tawm ntawm hexagon, sab nrauv hexagon thiab countersunk bolts rau kev lag luam aviation thiab aerospace kev lag luam. Kev siv kub ntawm cov khoom siv kho mob hauv lub xeev yog qis dua 200 degree, thiab kev siv kub ntawm cov khoom siv tshuaj laus hauv lub xeev yog qis dua 300 degree.
TB2 corrosion kuj
TB2 alloy muaj corrosion kuj zoo thiab tiv thaiv corrosion. Stainless hlau thiab nws cov kev sib cuag yeej tsis tsim corrosion. Aluminium alloy thiab structural steel kev sib cuag nrog nws, lub alloy nws tus kheej tsis corrode, tab sis dissimilar hlau yog corroded los ntawm anodizing lub alloy, uas muaj me ntsis cuam tshuam rau nws txhua yam khoom, tab sis yuav ua rau qeeb tus nqi ntawm cov qauv hlau thiab txhuas alloy nyob rau hauv kev sib cuag. nrog nws.
