, Cov khoom xaiv: txhim kho kev nkees ua hauj los ntawm qhov chaw
1. Daim ntawv thov ntawm high - Purity purity purity alloy hlau
Cov khoom siv feem ntau siv rau cov khoom siv hauv tsev suav nrog cov khoom siv sib npaug xws li 65mn, uas nws tau txais txiaj ntsig zoo rau cov nyiaj sib npaug Noj 50crvra ua piv txwv, nws cov ntsiab lus carbon yog tswj tau ntawm 0.47% -0.55%. Cov nyhuv synergistic ntawm chromium (0.80% -1.10%) thiab Vanadium (0.10%) thiab tuaj yeem kho cov noob qoob loo loj thiab kev hais tawm tawg. Lub caij nplooj ntoo hlav ntawm lub caij nplooj zeeg compressor uas tau hloov cov roj carbon steel nrog 50crrva, lub neej qaug zog nce los ntawm 100000 lub voj voog.
2. Directional xaiv ntawm corrosion - tsis kam
Cov khoom siv tshuab ntxhua khaub ncaws ntau xws li cov tshuab ntxhua khaub ncaws xws li kev siv cua kub thiab 8% uas tuaj yeem tiv thaiv chloside ion corrosion; 316L stainless hlau (00cr17NI14 Tom qab siv 316L stainless hlau rau lub pob taws khawm ntawm qee hom tshuab ntxhua khaub ncaws qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj qhov rooj, lub cev qaug zog ua neej ntev ntxiv los ntawm peb zaug.
3. Cov ntawv thov tshiab ntawm cov khoom siv dag zog ntxiv dag zog zog
Cov npoo npoo av peening siv cov txheej txheem kev ntxhov siab (nrog ib qho tob ntxiv rau 0.2 hli Ib qho kev tshawb fawb ntawm lub tub yees lub caij nplooj ntoo hlav compressor tau pom tias tom qab tua cov nqaij qaib ntxiv, nws txoj kev siv rog, thiab nws lifespan nce ntxiv los ntawm 2.8 zaug. Tsis tas li ntawd, kev kho mob nitrividing (xws li roj nitriving) tuaj yeem tsim lub caij nplooj zeeg, nrog kev nyuaj ntawm HV800-1000, txhim kho kev coj tsis taus thiab nkees ua yeeb yam.
2, kev tsim khoom txheej txheem: Kho kom haum tswj cov khoom tsis xws luag
1. Tswjhwm ntawm cov txheej txheem kho cua sov
The quenching temperature and tempering parameters directly affect the microstructure of the spring. Taking the 60Si2MnA spring as an example, the quenching temperature should be strictly controlled between 860-880 ℃. If the temperature is too high (>900 DEGree), cov Austenite nplej yuav coarsen, ua rau kom muaj kev nce siab ntsws; Yog tias qhov ntsuas kub tsawg dhau (<850 ℃), the dissolution of carbides is insufficient and the hardness is insufficient. During the tempering stage, the best balance between elasticity and toughness can be achieved by holding at 450-470 ℃ for 2 hours. A case study of an air conditioning button spring shows that after optimizing the tempering process, its click life has been increased from 500000 times to 2 million times.
2. Cov kev sim ua tsis taus ntawm qhov chaw zoo
Nto qhov tsis xws ntawm Springs, xws li cov kab nrib pleb, quav, thiab dents, yog lub hauv paus chiv keeb ntawm kev qaug zog tawg. Fluorescent penetrant kuaj (PT) tuaj yeem txheeb xyuas microcracks ntawm 0.01mm theem, thaum EDDY sim tshuaj ntsuam (li) sai sai rau kev hatness. Tom qab qhia txog kev kuaj xyuas AI AI rau hauv lub tshuab ntsuas hluav taws xob ntau lawm, tsis muaj qhov tshwm sim ntawm thaj chaw saum npoo av uas poob qis ntawm 5% rau 0.1%, txo qis kev pheej hmoo ntawm kev pheej hmoo thaum ntxov.
3. Kev ntxhov siab tshuav kev tsim qauv ntawm kev tsim cov txheej txheem
Mob khaub thuas coil springs yog nquag rau kev ntxhov siab hauv zos vim tias yuav tsum tau siv cov nqi cua txias kom tsis txhob muaj kev ntxhov siab. Nqa khawm khawm ntawm lub tshuab ntxhua khaub ncaws rooj ua ib qho piv txwv, ua ntej muaj kev cuam tshuam nrog lub zog ua ntej, ua ntej, nws tau swm rau hauv nruab nrab ntawm cov cua sov hauv nruab nrab rau 450 degree, thiab thaum kawg qhov kawg kev ua tiav. Tus txheej txheem no txo cov kev ntxhov siab nyob rau lub caij nplooj ntoo hlav 40% thiab nce rog ua tsaug rau lub neej los ntawm 1.5 zaug.
3, Tsim Kho Kom Zoo Dua: Kev sib txuam zoo ntawm cov qauv thiab thauj khoom
1. Cov lej sim ua kom zoo ntawm kev hais txog kev ntxhov siab
Los ntawm kev siv cov software finite xws li cov ansys, kev txhawj xeeb faib ntawm comprings hauv compression, nro, torsion thiab lwm yam kev ua haujlwm tuaj yeem suav tau. Thaum lub caij nplooj ntoo tsim ntawm tub yees lub caij nplooj ntoo hlav compressor lub caij nplooj ntoo hlav Tom qab hloov mus rau cov suab tawv tsim qauv, kev ntxhov siab lub ncov siab tshaj plaws txo qis 950mpa thiab lub neej qaug zog nce ntawm 800 lub voj voog rau 200000 mus.
2. Spectralction of dynamic loads
Lub chaw thauj khoom tiag tiag los ntawm cov khoom siv hauv yim neeg siv hluav taws xob feem ntau muaj kev cuam tshuam ntawm cov cua txias ntawm cov cua txias tshuab hluav taws xob). Los ntawm kev tsom xam cov tshuaj tiv thaiv ntau zaus, lub ntsiab lag luam cov khoom siv tseem ceeb tuaj yeem txheeb tau thiab lub sijhawm ntuj lub caij nplooj ntoo hlav tuaj yeem ua kom tsis txhob resonance. Cov ntaub ntawv kev kawm lub tshuab ntxuav tais diav lub pob khawm tshuab raj ntawm lub caij nplooj ntoo hlav los ntawm 15Hz txog 25% thiab txuas lub neej qaug zog los ntawm 2 zaug.
3. Kev tsim qauv ntawm kev nyab xeeb ntawm kev nyab xeeb
Raws li cov khoom siv hauv tsev neeg siv, qauv hluav taws xob yuav tsum muaj kev nyab xeeb tshwj xeeb. Rau siab - zaus} zaus Cheeb Tsam (xws li tshuab ntxhua khaub ncaws rooj khawm Rau tsawg-zaus Cheebtsam xws li cua txias bracket bracket springs, ntau ntawm 1.3-1.5 tuaj yeem coj. Tom qab tau txais 1.5 zaug kev nyab xeeb kev nyab xeeb tsim qauv rau lub khawm khawm ntawm ib qho chaw tshiab lub neej, tig mus rau lub sij hawm nyem ntawm 2 lab lub sijhawm.
4, siv thiab txij nkawm: txuas lub sijhawm kawg mais ntawm lub neej
1. Kev tswj hwm ntawm kev thauj khoom ntau
Overloading ntawm springs yog qhov ncaj qha ua rau mob nkees tawg. Lub caij nplooj ntoo hlav ntawm lub caij nplooj zeeg compressor qhia pom tias thaum lub nra tau ntau dua 120% ntawm tus qauv tsim, lub neej qaug zog poob qis ntawm 500000 mais mus rau 50000 mus txog. Yog li ntawd, cov cuab yeej tsim hauv tsev yuav tsum txwv lub caij nplooj ntoo hlav los ntawm cov txheej txheem tshuab (xws li hluav taws xob (xws li compressor siab tiv thaiv cov cuab yeej).
2. Kev tswj hwm kev tswj hwm ib puag ncig
Kev nyab xeeb, txias, thiab corrosive media yog peb qhov loj "tua" ntawm springs. Nyob rau hauv ib puag ncig vaum, Nws pom zoo kom siv tshuaj tiv thaiv cov roj txheej roj txheej lossis yas ntim khoom; Nyob rau hauv high {-} kub thiab kub} {{{{2} {{{{{{{{{{{{{ Rau ntsev tsuag tsuag ib puag ncig ib puag ncig (xws li ntxuav machine hauv thaj chaw ntug hiav txwv), 316L stainless hlau tuaj yeem siv thiab ntxuav kom huv.
3. Kev saib xyuas tsis tu ncua thiab cov saib xyuas kev saib xyuas
Tsim cov xwm txheej tiv thaiv lub caij nplooj ntoo hlav tuaj yeem ua tiav kev saib xyuas kev tiv thaiv. Piv txwv, txhim kho quav gauges thaum lub caij nplooj ntoo hlav cua txias rau kev hloov pauv kev ntxhov siab hauv lub sijhawm tiag tiag; Thaum cov kev ntxhov siab uas tau hloov dua tshaj qhov pib, lub kaw lus cia li txuas thiab ua rau hloov. Cov ntaub ntawv kev tshawb fawb ntawm lub tub yees txias hauv lub qhov rooj ntawm lub qhov rooj kev co kom pom tias yog kev saib xyuas lub caij nplooj ntoos hlav tau kwv yees tau peb lub hlis ua ntej.
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