Vim li cas thiaj tuaj yeem txau cov xov hlau molybdenum kov yeej rigidity nrog softness nyob rau hauv lub lubrication ntawm cav roj?

Ntau tus neeg xav tias qhov hnyav dua qhov hnav- txheej tiv thaiv, qhov zoo dua, tab sis hauv kev ua haujlwm tiag tiag, qhov sib npaug ntawm hardness thiab coefficient yog qhov tseem ceeb. Cov txheej txheej tsim los ntawm kev txau cov xov hlau molybdenum muaj qhov hnyav nruab nrab (feem ntau HV 300-450), tab sis tuaj yeem ua tiav cov coefficients qis heev ntawm 0.05-0.12 nyob rau hauv cov roj lubrication.

Qhov no yog vim molybdenum nws tus kheej muaj cov txheej txheem siv lead ua, zoo ib yam li cov khoom plam ntawm graphite. Thaum lub sij hawm cov txheej txheem txau, molybdenum hais tau ntaus lub substrate ntawm kev kub ceev, thiab yas deformation tshwm sim, tsim ib tug tuab txheej txheej. Thaum cov roj zaj duab xis tsis txaus, cov txheej txheem txheej no tuaj yeem ua tau zoo li cov khoom siv roj nplua nyeem, tiv thaiv cov hlau ncaj qha - mus rau - hlau adhesion. Cov txheej txheem no ntawm "kev sib tw rigidity nrog softness" tso cai rau molybdenum- cov tshuaj tsuag cov khoom tseem muaj kev khiav haujlwm zoo- nyob rau hauv thiab tsis tshua muaj hnav nyob rau hauv kev ua haujlwm hnyav, xws li pib txias thiab nrawm nrawm.

Ntau xyoo ntawm cov ntaub ntawv hauv kev lag luam tau pom tias qhov hnav ntawm molybdenum hlau thermally sprayed rings feem ntau tsuas yog 1/2 rau 1/3 ntawm cov chrome zoo tib yam -plated rings, thiab hnav ntawm lub tog raj kheej liners kuj yog softer. Qhov no kuj yog ib qho laj thawj tseem ceeb vim li cas ntau qhov nruab nrab - mus rau - siab - kawg cav thiab hnyav - lub luag haujlwm gearboxes tseem siv molybdenum txau tshuab hauv ntau qhov ntau.

Nyob rau hauv lub tshav pob ntawm cov khoom siv remanufacturing, qhov no feature yog ntau ncaj qha reflected. Yog hais tias ib tug hydraulic pas nrig los yog tsav ncej yog me ntsis strained, kev xyaum tej zaum yuav muab pov tseg nyob rau hauv nws tag nrho los yog phaj nws nrog nyuaj chrome. Kev siv cov nplaim txau lossis arc txau molybdenum hlau tsis tuaj yeem kho sai sai, tab sis kuj ua rau hnav tsis kam ntawm qhov kho qhov zoo tshaj qhov qub.

Qhov tseem ceeb tshaj, cov txheej txheej molybdenum muaj lub zog siab nrog cov hlau substrate (feem ntau ntau dua 40MPa), thiab nws tsis yooj yim rau poob thaum rov ua dua, thermal expansion, thiab contraction. Qhov no tau ua rau ntau tus neeg siv cov tshuab mining, textile machinery, thiab kev tsim kho tshuab tshawb pom tias ib qho tshuaj tsuag tuaj yeem siv ntau tshaj ob npaug ntawm lub neej ntawm cov khoom, uas ncaj qha txo tus nqi ntawm kev tu ncua sij hawm.

Tsis yog txhua cov xov hlau molybdenum haum rau kev txau. High-zoo sprayed molybdenum xov hlau xav tau siab purity (ntau tshaj 99.9%), nruj txoj kab uas hla kam rau ua (feem ntau 3.17 hli specification deviation yog tswj nyob rau hauv ± 0.05 hli), thiab tsis muaj oxidation loj nyob rau saum npoo, thiaj li yuav xyuas kom meej uniform atomization thiab tsawg txheej porosity thaum txau. Tam sim no, feem ntau ntawm tus nqi- cov kev xaiv zoo ntawm lub khw yog cov qib uas ntxiv cov kab tsis tshua muaj hauv ntiaj teb lossis tau txais kev kos duab tshwj xeeb thiab kev kho mob annealing. Lawv muaj qhov qis dua ntawm cov hlau tawg thiab cov txheej txheem zoo dua qub thaum lub sijhawm txau.

Summary: Tus nqi tiag tiag ntawm cov tshuaj tsuag molybdenum hlau tsis dag nyob rau hauv qhov kub npaum li cas nws tuaj yeem tiv taus, tab sis nyob rau hauv qhov tseeb tias nws muab cov kev daws teeb meem zoo tshaj plaws thiab txhim khu kev qha nyob rau hauv feem ntau muaj xwm txheej ntawm "roj lubricated ciam". Nws ua rau lub cav khiav ntsiag to, ua rau cov cuab yeej kho cov nqi ntau dua - zoo, thiab tseem ntxiv ib qho kev ntsuab thiab muaj txiaj ntsig zoo rau kev lag luam remanufacturing.

Yog tias koj tab tom nrhiav cov lus teb rau kev hnav- teeb meem tiv thaiv ntawm lub nplhaib, synchronizers, hydraulic qhov chaw, lossis ntau yam hnav- cov khoom sib tsoo, thov hu rau peb los tham txog cov haujlwm tshwj xeeb. Raws li koj cov khoom siv substrate, kev ua haujlwm tsis zoo, thiab cov cuab yeej siv tshuaj tsuag, peb tuaj yeem pom zoo kom haum cov molybdenum hlau tshwj xeeb tshaj plaws thiab cov txheej txheem tsis zoo los pab koj siv tiag tiag "ib txheej, ib xyoos ntxiv".

Kev lag luam yog kev txhim kho tas li, tab sis thaum daws qhov teeb meem qub ntawm kev hnav thiab tsim kua muag, cov tshuaj tsuag molybdenum hlau tseem yog ib qho kev xaiv zoo los ntawm ntau tus engineers. Koj puas muaj teeb meem hnav thiab tsim kua muag li cas? Zoo siab txais tos los koom thiab sib tham txog kev tiv thaiv zoo dua ua ke.