1. Dab tsi yog qhov sib txawv ntawm cov tshuaj lom neeg thiab cov khoom siv lawv cov neeg kho mob nruab nrab ntawm Gr5, Gr2, thiab Gr9 Titanium Alloy tuav?
Gr2 yog cov lag luam ntshiab titanium (cp ti) nrog tsawg kawg nkaus tensurities (345} Nws yog ib qho -phase alloy, zoo tagnrho rau kev sib sau ua cov duab nyuaj.
Gr5 (ti {- 6al {{} {}} vi}} }oy}}} 5 5 _.5% v. Nws muaj lub zog ntawm lub zog ntawm peb thiab 0.5% V. Nws muaj lub zog ntawm Min, tab sis qis dua). Tus qauv dual-theem kuj tseem muaj kev kub siab dua (nce txog 400 degree).
Gr9 (ti {- 3al-2.5v) yog lwm qhov ntxiv (6) cov ntsiab lus zoo dua gr5, ua rau nws muaj zog dua li gr5, ua rau nws muaj zog dua gr5 tab sis muaj zog dua gr2. Tag nrho peb tau zoo corrosion tsis kam, tab sis Gr2 ua tau zoo tshaj plaws hauv kev ncaj ncees corrosive ib puag ncig, thaum Gr5 / Gr9 Excel hauv cov kev mob hnyav.
2. Qhov kev lag luam twg thiab cov ntawv thov ua ntej GR5, Gr2, thiab Gr9 Titanium Alloy tuav, feem?
Gr2 yog dav siv nyob rau hauv kev lag luam siv tshuaj lom neeg thiab kev lag luam kho mob. Hauv cov nroj tsuag tshuaj, nws tau ua rau cov cua sov ua kom muaj zog, thiab twj tso kua mis} Nws yog corrostric acid thiab corrorine, thaum lub sij hawm ua kom muaj kev ua kom zoo nkauj. Hauv cov tshuaj, nws tau siv rau kev phais cov cuab yeej thiab kev cuam tshuam hniav vim yog biocompatibility thiab yooj yim.
Gr5 dominates lub aerospace thiab cov khoom siv hnyav ua haujlwm. Aerospace cov ntawv thov suav nrog cov dav hlau tsaws iav, cov cav ntoo, thiab cov kab mob siab} Nws tau txo lub dav hlau hnyav Nws tseem siv nyob rau hauv cov pob taws roj drilling cov cuab yeej, qhov twg lub zog tiv taus kev kub siab.
Gr9 yog favored hauv marine thiab kev lag luam tsheb. Marine siv suav nrog dej hiav txwv rau dej hiav txwv thiab cov kiv cua tsis kam nyob rau hauv chloside ib puag ncig stainless hlau, thiab ntsuas lub zog / ductility ua qhov cub ua kom yooj yim. Hauv kev kho tsheb, nws tau siv rau cov pa hluav taws xob (tiv thaiv 350 degree) thiab lub teeb Chassis Qhov chaw, txiav roj.
3. Yuav ua li cas ua cov txheej txheem tsim khoom lag luam rau Gr5, Gr2, thiab Gr9 Titanium Alloy cov kab sib txawv kom haum lawv cov khoom?
Gr2 kev tsim khoom lag luam tsom rau kev ua kom deserving. Titanium daim txhuam cev yog melted ib zaug ntawm nqus plua plav (var), tom qab ntawd}}}}}}}}}}} Txias-kev kos duab yog dav rau kev tiv thaiv kaw cia, raws li nws ductility tso cai rau ntau tus dhau yam tsis muaj kev tawg.
Gr5 yuav tsum tau ua kom meej dual -} same tswj. Daim txhuam cev, AL, thiab V tau melted ob zaug ntawm var kom paub tseeb tias tsis muaj kev sib xyaw ua ke. Kub - rolling tau ua tiav saum cov- hloov cov nplej (995 degree) kom muab cov coarsearsearse. Txoj kev daws teeb meem kawg (925 Degree, dej {10}- Cov kauj ruam no yog qhov tshwj xeeb rau Gr5, li Gr2 / Gr9 tsis xav tau kev laus.
Gr9 cov txheej txheem sib npaug muaj zog thiab muaj peev xwm. Nws melted ib zaug ntawm var, kub}}}}}}}}}}}}}}}}}}}}}}}}}}℃7} mus rau qhov zoo + faib. Txias {{12} Kev kos duab yog qhov tsawg dua gr2 tab sis ntau dua gr5-nrog kev hloov kho nrab hauv nruab nrab kom muaj kev tswj hwm.
4. Dab tsi zoo tswj tau qhov tseem ceeb rau Gr5, Gr2, thiab Gr2ium Alloy tuav kom tau raws li cov qauv kev lag luam?
Tag nrho peb qib yuav tsum tau tshuaj ntsuam xyuas kev ntsuas tshuaj lom neeg (OES) los xyuas cov ntsiab lus Alloy: Gr5 rau Al / V sib piv, Gr9 rau qis qis al / v qib.
Neeg kho tshuab ntsuas sib txawv ntawm qib: GR2 xav tau tensile kev ntsuam xyuas (345 MPa min tensile) thiab elongation tshev (20% min); Gr5 yuav tsum muaj zog dua kev siv tau ({{{{}} mpa mpa mpa min tensile) thiab kev sim hardness (30 hrc min min); Gr9 cov kev ntsuam xyuas tsom rau kev tshuav nyiaj (620 mpa min tensile, 14% min kev elongation).
Tsis - Kev sim siab (NDT) yog Universal: Ultrasonic kuaj (ect) cov chaw kuaj pom tam sim no (ect) cov chaw kuaj xyuas rau khawb / pits. Rau cov ntawv qhia tseem ceeb (piv txwv li, gr5 hauv aerospace), 100% UT / ECT yog yuav tsum tau; Gr2 hauv kev siv tshuaj siv tau siv tau 50% piv txwv. Kev kuaj xyuas lub taub ruaj khov kom lub siab thev naus laus zis (± 0.05-0.1 hli ntawm cov micrometers, nrog gr2 xav tau kev xav tau kev ua haujlwm.
5. Tau Gr5, Gr2, thiab Gr9 Titanium Alloy tuav yuav welded thiab txias- tsim nyog?
Gr2 yog qhov yooj yim rau weld thiab daim ntawv. VUAM VUAM NTAWM COV GAS TUNGTEN ARBTENT ARBT (GTAW) nrog kev tiv thaiv argon (tiv thaiv oxidation) yuav tsum tsis muaj kab lus- Weld kev kho cua sov. Txias - sib sau (dabtsi yog khoov, yob) yog ncaj rau 30% ua haujlwm tsis muaj annealing, ua tsaug rau kev ua haujlwm siab.
Gr5 yog weldable tab sis xav tau kev saib xyuas. Gtaw nrog usei -}}}} Tus tub muab cov hlau siv, tab sis ncej}}}}} log seem. Txias - Txoj kev sib sau yog txwv (max 15% txias-ua haujlwm) ua ntej kev txhawb nqa, raws li nws txoj kev ua kom qis dua ua rau tawg. Cov cuab yeej yuav tsum yog tus ntse kom tsis txhob muaj kev kub siab, uas coarsens nplej.
Grift Balfes weldability thiab formability. GTAWI {{{- 9 Ua tub lim dej ua haujlwm zoo, nrog rau kev xaiv xa ntawv {650 degrim annealing (650 degree) rau kev nyuaj siab nyem. Txias - kev sib sau ua tiav 20% txias - ua haujlwm-ntau dua gr5 tab sis tsawg dua gr2. Nruab nrab annealing (700 degree) tom qab kev sib tw hnyav restores. For all grades, welding surfaces must be cleaned with acetone to remove oil, as contaminants cause weld porosity.
