Overheating kab nrib pleb ua rau lub neej luv luv, ua rau tsis ua hauj lwm ntxov ntxov lossis txawm tias poob sai. Qhov no yog vim hais tias cov kab nrib pleb tshwm sim los ntawm irreversible kev puas tsuaj xws li grain ciam teb oxidation thiab localized melting, ua rau ib tug tag nrho poob ntawm cov khoom load- bearing muaj peev xwm.
1. Kev cuam tshuam ncaj qha rau pwm lub neej:
Kev txo qis ntawm lub neej ntau dua 50%: Cov kab nrib pleb tuaj yeem nthuav tawm ntau dua 50% hauv 24 teev tom qab vuam, ua rau cov pwm feem ntau siv tsis tau ua ntej ua tiav lawv thawj lub voj voog ntau lawm.
Kev pheej hmoo siab ntawm kev tawg sai sai: Cov kab nrib pleb tshwm sim tsis tu ncua yam tsis muaj kev thauj khoom sab nraud, ua rau lawv tuaj yeem tawg sai sai thaum lub sijhawm ua haujlwm vim muaj kev vibrations me ntsis lossis kev hloov siab sai sai.
Kev kho tsis tuaj yeem: overheating tawg tsis tuaj yeem kho los ntawm vuam lossis kev kho cua sov; tag nrho cov pwm yuav tsum tau hloov, tsis muaj peev xwm ncua nws txoj sia.
Cov ntaub ntawv tiag tiag: Ib zaug overheating tawg tshwm nyob rau hauv H13 steel pwm, qhov nruab nrab lifespan poob los ntawm ib txwm 200,000 cycles mus rau tsawg dua 30,000 cycles, ib tug txo ntawm ntau tshaj 85%.
2. Kev cuam tshuam tsis ncaj thiab cov kev pheej hmoo ntawm cov saw hlau
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Hom kev pheej hmoo |
Kev tshwm sim |
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Kev cuam tshuam ntau lawm |
Sudden pwm tsis ua hauj lwm ua rau cov kab ntau lawm kaw, nrog kev kho thiab hloov pwm siv ob peb teev. |
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Cov teeb meem kev tswj xyuas zoo |
Crack propagation ua rau molding tsis xws luag xws li flash thiab cov khoom tsis txaus, txo cov khoom yield. |
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Kev Nyab Xeeb Kev Nyab Xeeb |
Siab -kev ceev tshem tawm cov tawg tawg ua rau muaj kev hem thawj rau tus neeg teb xov tooj kev nyab xeeb. |
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Surge hauv Nqis |
Kev hloov pwm ntau zaus nce cov khoom siv thiab cov nqi tu; ib qho kev sib tsoo poob tuaj yeem ncav cuag kaum txhiab yuan. |
Kev Ceeb Toom Tshwj Xeeb: Cov kab nrib pleb overheating yog insidious thiab nyuaj rau kev kuaj pom thawj zaug, feem ntau dheev tshwm sim thaum lub sijhawm ua haujlwm siab -, ua rau muaj kev phom sij loj.
3. Poob Ntev - Lub Sijhawm Kev Ua Haujlwm ruaj khov
Accelerated Thermal Fatigue: Cov kab nrib pleb dhau los ua qhov chaw muaj kev ntxhov siab, nthuav tawm sai sai thaum lub sij hawm thermal cycling thiab ua kom cov pwm aging.
Irreversible Tissue Deterioration: Cov nplej ciam teb oxide network txuas ntxiv txhim kho; Txawm tias tsis muaj kev puas tsuaj tam sim ntawd, cov khoom toughness tseem poob qis.
Kev kho tsis zoo: Txhua qhov vuam lossis kev kho saum npoo tsis tuaj yeem rov ua kom muaj kev ncaj ncees ntawm cov qauv sab hauv thiab tuaj yeem ua rau cov kab nrib pleb tshiab.
Lub hauv paus ntsiab lus ntawm kev nyab xeeb: Thaum overheating tawg tau lees paub, cov pwm yuav tsum tau muab tshem tawm tam sim ntawd thiab muab pov tseg; txwv tsis pub siv txuas ntxiv mus.
4. Cov lus qhia txog kev tiv thaiv
Xaiv Overheat-Resistant Materials: Ua ntej siv cov siab -stability steels xws li PM-H13 thiab H13+Ti;
Kev Tswj Xyuas Kev Kub Ntxhov: Kub khiav haujlwm kub tsawg dua lossis sib npaug li 600 degree, kev kho cua sov tsis tshaj 1150 degree;
Kev Tshuaj Xyuas Metallographic tsis tu ncua: Kev tshuaj ntsuam xyuas txhua txhua 6-12 lub hlis, luv luv mus rau 3-6 lub hlis nyob rau hauv siab -load tej yam kev mob;
Tsim Cov Ntaub Ntawv Lifespan: Sau cov naj npawb ntawm cov cua kub mus, qhov kub siab tshaj plaws, thiab lub voj voog ntau lawm rau txhua tus pwm los pab kom muaj kev hloov pauv.
Tswv yim tswv yim: Cov pwm tshiab yuav tsum tau kuaj xyuas metallographic ua ntej nkag mus rau hauv lub Hoobkas kom tsis txhob siv cov khoom tsis zoo.
