Titanium nyob rau hauv Kev Lag Luam Ordnance: Lub teeb yuag Innovation Los ntawm Mortars rau Tanks
Hauv kev ua tsov rog niaj hnub no, "30% txo qhov hnyav txhais tau tias 30% nce ntawm kev ciaj sia" tau dhau los ua qhov tseem ceeb ntawm kev tsim tub rog. Titanium alloy tau dhau los ua "cov khoom tseem ceeb" hauv kev lag luam riam phom nrog nws qhov ntom ntom ntawm 4.5g / cm³ (tsuas yog 60% ntawm cov hlau) thiab tensile lub zog ntawm ntau dua lossis sib npaug ntawm 895MPa. Los ntawm ib qho -muab titanium mortars rau tank armor uas muaj peev xwm tiv taus armor- tho cov mos txwv, cov khoom no, hu ua "qhov chaw hlau", yog qhov hloov pauv kev tsim kho thev naus laus zis ntawm cov cuab yeej tiv thaiv.
Lub ntiaj teb lub teeb tshaj plaws PBP201 mortar, nrog tag nrho qhov hnyav ntawm tsuas yog 8.5kg, yog 62% sib dua li cov qauv hlau.
Cov yam ntxwv ntawm kev ua haujlwm: "Kev sim siab heev" hauv ib puag ncig huab
Titanium siv hauv riam phom yuav tsum muaj kev ruaj ntseg hauv peb qhov chaw huab cua:
Kub txwv:Los ntawm -50℃toj siab txias rau 600℃chim kub, TC11 titanium alloy tseem tuaj yeem tuav lub zog ntev ntawm 640MPa
Corrosive ib puag ncig:TA2 ntshiab titanium yog siv nyob rau hauv cov khoom siv naval, thiab nws cov corrosion kuj tsawg dua 0.001mm / xyoo, uas tsuas yog 1/50 ntawm stainless hlau.
Impact test:Lub mortar puag phaj yuav tsum tiv taus qhov cuam tshuam tam sim ntawm 300MPa (sib npaug rau peb tus ntxhw sawv ntawm thaj tsam 1 square meter). TC4 titanium alloy ua tiav qhov cuam tshuam ntawm 50J / cm² lossis siab dua los ntawm -theem forging txheej txheem.
Manufacturing Challenges:Tawm tsam nrog kub kub, siab viscosity, thiab siab elasticity
Titanium alloy ua yog hu ua "Mount Everest ntawm hlau ua":
1. Tej teeb meem kub kub:Lub thermal conductivity tsuas yog 1/7 ntawm cov hlau, thiab qhov kub ntawm qhov chaw txiav tuaj yeem ncav cuag 1000 degree, yuav tsum tau siv cov khoom siv ultra-zoo grain carbide (WC-Co alloy))
2. Vuam oxidation teeb meem:Electron beam vuam tshuab ua rau lub zog vuam ncav cuag 90% ntawm cov khoom siv niam txiv, thiab qhov tawg yog tsawg dua 0.5%
3. Kev sib tw Elastic deformation:Lub caij nplooj ntoos hlav thaum lub sijhawm ua haujlwm yog peb zaug ntawm cov hlau, yuav tsum tau ua kom muaj kev ntxhov siab rau kev ntxhov siab (550℃rau 2 teev)
Daim duab: Tshuab rab phom tripod ua los ntawm TC4-DT titanium alloy, 2.3kg qhov hnyav thiab 2000N cuam tshuam
Star khoom series
1. Kev sib tsoo hauv kev sib sib zog nqus ntawm cov khoom siv ib leeg
PBP201 mortar: Nws txais yuav tag nrho titanium alloy phom lub cev thiab lub hauv paus phaj tsim, nrog kev sib ntaus sib tua hnyav ntawm tsuas yog 8.5 kg, thiab tuaj yeem ua tau yooj yim los ntawm ib tug tub rog nyob rau hauv qhov siab - qhov siab sib ntaus sib tua ib puag ncig
QJZ-171 hnyav tshuab phom: titanium alloy phom thav duab txo qhov hnyav los ntawm 40%, thiab lub chim deformation yog tswj nyob rau hauv 0.1 hli tom qab 1,000 rounds ntawm nruam firing.
2. Innovation nyob rau hauv armored tsheb tiv thaiv
VT-4 tank titanium alloy turret: Ti-6Al-4V sib xyaw armor thickness 120 mm (sib npaug steel armor 200 mm), qhov hnyav tag nrho ntawm 20%
Lub dav hlau sib ntaus sib tua lub tsheb ncej: Titanium alloy lub cev txo qhov hnyav los ntawm 15%, ua ke nrog cov cuab yeej siv cuab yeej cuab tam, tuaj yeem tso tawm los ntawm Y-20 thauj dav hlau
Daim duab: Kaw-nce ntawm VT-4 lub tank titanium alloy pivot ncej, uas siv peb theem nqus cov khoom siv melting.
Cov ntsiab lus ntawm kev tsim khoom
a. Kev Tshawb Fawb Kev Tsim Nyog
Nyiam AS9100D ntawv pov thawj tsum
Cov khoom siv tub rog yuav tsum tau nrog rau daim ntawv pov thawj GJB 2744A-2019
b. Kev soj ntsuam zoo
Oxygen ntsiab lus tswj Tsawg dua lossis sib npaug li 0.13%
Qhov siab tshaj plaws tso cai tsis raug ntawm ultrasonic tsis pom kev yog φ0.8mm
c. Kev thauj mus los lav
Siv lub tshuab nqus tsev ntim + argon filling
Tsis txhob oxidation (1 teev ntawm kev raug tsim tawm 5nm oxide txheej)
