Kev siv cov kub kub alloys hauv aviation teb
1. Plaub kub kawg Cheebtsam
High-temperature alloys yog siv nyob rau hauv plaub kub-kawg Cheebtsam ntawm aeroengines:
combustion chamber: Lub combustion chamber yog lub hauv paus ntawm mechanical zog tsim. Lub combustion chamber phab ntsa thiab combustion chamber yog tsim los ntawm high-temperature alloy cov ntaub ntawv vim hais tias lawv yuav tsum tau tiv taus kub tshaj 800 degree. Cov khoom siv yuav tsum muaj kev qaug zog zoo, muaj zog oxidation tsis kam, thiab kev ua haujlwm zoo.
- Turbine hniav: Turbine hniav yog cov khoom tseem ceeb tshaj plaws ntawm aeroengines. Turbine blades yuav tsum tiv taus qhov kub thiab txias thiab yuav tsum tiv taus loj centrifugal kev nyuaj siab, kev vibration kev nyuaj siab, thermal stress, thiab lwm yam. Cov khoom tseem ceeb siv nyob rau hauv turbine hniav manufacturing yog cam khwb cia high-temperature alloy. Tam sim no, ib leeg siv lead ua kub-kub alloys tau siv dav hauv kev tsim khoom. Cov alloy no muaj tensile, ruaj, creep qaug zog, oxidation kuj thiab kub corrosion kuj zog.
- Guide vane: Cov lus qhia vane yog ib qho khoom siv los kho cov kev taw qhia ntws ntawm cov pa tawm ntawm lub combustion chamber. Nws yog ib qho ntawm cov khoom uas raug kev kub ntxhov siab tshaj plaws ntawm lub aeroengine. Cov khoom muaj kub oxidation tsis kam, zoo tiv thaiv thermal qaug zog thiab txhua yam qaug zog, siab thermal conductivity thiab tsawg thermal expansion coefficient.
- Turbine disc: Thaum lub turbine disc ua haujlwm, qhov kub ntawm lub npoo ncav cuag 550-750 degree, thaum lub log qhov chaw kub tsuas yog li 300 degree, ua rau qhov kub thiab txias sib txawv ntawm tag nrho cov khoom; nws dais tseem ceeb centrifugal quab yuam thaum tig; nws dais kev ntxhov siab loj thaum pib thiab nres tsheb. qaug zog voj voog. Cov khoom siv yuav tsum muaj lub zog siab. Zoo plasticity thiab zoo thermal qaug zog kuj.
2. Aviation fasteners
Cov khoom lag luam tseem ceeb ntawm cov tshuab dav hlau muaj xws li ntau hom bolts, cov ntsia hlau tseem ceeb, cov txiv ntoo ntawm tus kheej, cov tes tsho xov, pins, cov yeeb nkab fittings thiab connectors, thiab lwm yam.
- Kub kub thiab siab zog bolts thiab screws
Bolts thiab screws ua los ntawm cov ntaub ntawv xws li GH4169 yog tam sim no siv dav tshaj plaws kub thiab muaj zog fasteners nyob rau hauv aero-engines. Tom qab kev kho cua sov, lub zog tensile ntawm cov khoom no nce mus txog σb Ntau dua lossis sib npaug ntawm 1250Mpa, thiab cov xov ntawm hom no muaj zog fasteners tau ua tiav los ntawm kev sov so. Technology yog cov kev taw qhia ntawm kev tshawb fawb thiab kev loj hlob.
- Tighten cov bolts
Lub cav turbine bolts thiab high-precision slender zawm bolts yog qhov tseem ceeb ntawm cov khoom thauj khoom ntawm aeroengines. Hom fasteners no feem ntau ua tiav los ntawm forging blanks, thiab cov ntaub ntawv feem ntau yog high-temperature alloys thiab titanium alloys. Ntxiv nrog rau qhov kub thiab txias, lub zog siab, thiab kev ua haujlwm siab ua haujlwm siab, cov khoom zoo li no kuj muaj cov qauv tsim thiab cov kev xav tau rau cov ncej slender. Kev ua haujlwm nyuaj ntawm hom no feem ntau yog nyob rau hauv lub zog loj xov dov thiab ua deformation tswj ntawm slender shafts.
- Keyed locking ntsia hlau pawg thiab ntsia hlau tes tsho
Keyed locking screw piles thiab threaded tes tsho yog ib qho kev tsim tshiab aviation fastener kev sib txuas thev naus laus zis hauv xyoo tas los no. Qhov kev sib txuas thev naus laus zis no tsuas yog hloov pauv los ntawm kev sib xyaw ua ke ntawm kev cuam tshuam cov xov thiab kaw cov discs. Nws yog tus pin-tus yuam sij xauv txoj kev, ua rau lub rooj sib dhos xauv cov qauv sib txuas ntau dua, tsim nyog, thiab txhim khu kev qha hauv kev tiv thaiv kev xoob.
- High kub alloy self-locking txiv ntseej
Self-locking ceev. Yav dhau los, daim ntawv ntawm hom fastener no kuj yooj yim, feem ntau yog ua los ntawm alloy steel thiab stainless hlau. Nrog rau kev nce qib ntawm aero-engine technology, feem ntau ntawm tus kheej-locking ceev ntawm lub cav fasteners yog tam sim no ua los ntawm high-temperature alloy cov ntaub ntawv. Cov ntaub ntawv xauv deformation muaj xws li ob-point, peb-point, plaub-point, ncaj zawj, inclined zawj thiab lwm cov ntaub ntawv kaw. Cov qauv siv suav nrog HB, GJB thiab cov qauv kev qhia tshwj xeeb ntawm txhua tus qauv tsim.
Tshwj xeeb tus kheej-locking txiv ntseej
Nrog rau kev txhim kho me ntsis ntawm domestic thiab txawv teb chaws advanced aerospace engine technology, ntau txhim khu kev qha, yooj yim dua thiab sib dua spindle rotor fasteners yog xav tau los fasten qhov chaw ntawm high-speed rotating spindles. Txoj kab uas hla thiab tuab ntawm qhov tshwj xeeb ntawm tus kheej-locking txiv ntoo ntawm lub siab ceev rotating spindle feem ntau yog 4: 1, 6: 1, thiab 10: 1. Tus kheej-locking deformation cheeb tsam ntawm hom tshwj xeeb ntawm tus kheej-locking txiv ntoo yog luv luv, thiab cov txheej txheem molding yog qhov nyuaj, uas cuam tshuam rau cov khoom siv. Cov kev cai rau kev tswj kev kho cua sov, metallurgical zoo, thiab kev ruaj ntseg ntawm tus kheej yog siab heev.
Cov hlau kub kub xws li A286 (GH2132), GH2696, GH3030, inconel718 (GH4169), GH4698, Waspaloy (GH738) yog txhua yam khoom siv rau aerospace fasteners.
3.Lwm yam khoom
Siv rau cov khoom xws li receivers, rings, afterburners, thiab tail nozzles.
