Molybdenum disulfide yog dab tsi?
Molybdenum disulfide (MoS2) yog ib qho tseem ceeb roj lubricant, hu ua "tus huab tais ntawm cov khoom lubrication"
1. Molybdenum disulfide yog cov hmoov ua los ntawm ntuj molybdenum concentrate hmoov tom qab tshuaj purification.
2. Cov xim ntawm cov khoom yog xim dub thiab me ntsis silvery grey, nrog cov xim hlau nplaum, thiab nws hnov ntxhiab thaum kov, thiab yog insoluble hauv dej.
3. Cov khoom muaj qhov zoo ntawm qhov zoo dispersion thiab tsis yog khi. Nws tuaj yeem muab ntxiv rau ntau yam roj los tsim kom tsis muaj kev sib khi colloidal, ua kom lubricity thiab siab siab ntawm cov roj;
4. Nws kuj yog tsim rau kev kub siab, kev kub siab, kev kub ceev thiab siab load mechanical ua hauj lwm tej yam kev mob, thiab ncua lub neej kev pab cuam ntawm cov khoom;
5. Lub luag haujlwm tseem ceeb ntawm molybdenum disulfide siv los ua cov khoom sib txhuam yog los txo kev sib txhuam ntawm qhov kub thiab txias, nce kev sib txhuam ntawm qhov kub thiab txias, thiab txo qhov hluav taws kub.
Kev siv cov molybdenum disulfide (MoS2)
1. Lubrication nyob rau hauv qhov kub thiab txias: qhov siv tau ntau yam ntawm lubricating roj thiab roj yog hais txog 60 ° C mus rau 350 ° C. Molybdenum disulfide khoom lubricant yuav siv tau rau kev khiav hauj lwm kub ntawm 270 ° C mus rau 1000 ° C.
2. Lubrication nyob rau hauv hnyav load tej yam kev mob: feem ntau, cov roj zaj duab xis ntawm lubricating roj thiab roj tsuas yog dais kuj me me load. Thaum lub load tshaj qhov txwv tus nqi nws muaj peev xwm dais, cov roj zaj duab xis yuav tawg thiab kev sib txhuam nto yuav tom. Qhov nruab nrab load uas cov khoom lubricating tau dais yog 108Pa.
3. Lubrication nyob rau hauv lub tshuab nqus tsev tej yam kev mob: nyob rau hauv lub siab lub tshuab nqus tsev tej yam kev mob, lub evaporation ntawm lubricating roj thiab roj kuj loj, uas yog ib qho yooj yim mus ua puas lub tshuab nqus tsev ib puag ncig thiab cuam tshuam rau kev ua hauj lwm ntawm lwm yam khoom. Molybdenum disulfide khoom lubricating khoom feem ntau yog siv rau lubrication.
4. Lubrication nyob rau hauv hluav taws xob tej yam kev mob: Nyob rau hauv cov hluav taws xob tej yam kev mob, cov kua lubricants yuav polymerize los yog decompose thiab poob lawv lubricating zog. Khoom lubricants muaj hluav taws xob zoo.
5. Lubrication ntawm conductive zawv zawg nto: Piv txwv li, kev sib txhuam ntawm conductive zawv zawg nto, xws li hluav taws xob txhuam ntawm lub tshuab hluav taws xob, conductive slider, hnub ci collector nplhaib ntawm cov khoom siv satellite ua haujlwm hauv lub tshuab nqus tsev thiab zawv zawg hluav taws xob sib cuag, tuaj yeem lubricated nrog cov ntaub ntawv sib xyaw. carbon graphite los yog hlau.
6. Cov xwm txheej uas ib puag ncig tsis zoo: nyob rau hauv ib puag ncig hnyav, xws li tsheb thauj mus los, engineering machinery, metallurgical thiab hlau thiab steel kev lag luam cov koom haum, mining machinery thiab lwm yam kis tau tus mob qhov chaw ua hauj lwm nyob rau hauv plua plav, sediment, kub thiab av noo thiab lwm yam hnyav ib puag ncig. Cov xwm txheej, molybdenum disulfide khoom lubricant tuaj yeem siv rau lubrication.
6. Corrosive ib puag ncig: Piv txwv li, qhov kis tau tus mob ntawm marine machinery thiab chemical machinery ua hauj lwm nyob rau hauv dej (steam), dej hiav txwv, acid, alkali, ntsev thiab lwm yam corrosive media, thiab lawv yuav tsum undergo ntau yam tshuaj corrosion. Molybdenum disulfide khoom lubrication tuaj yeem siv rau cov khoom sib kis ua haujlwm hauv qhov xwm txheej no.
7. Cov chaw uas muaj ib puag ncig huv si: kis tau tus mob hauv cov tshuab xws li hluav taws xob, textiles, khoom noj, tshuaj, ntawv ua, luam ntawv, thiab lwm yam. yuav tsum tau kom tsis txhob muaj kuab paug, thiab MoS2 khoom lubricant yuav siv tau rau lubrication.
8. Cov xwm txheej tsis muaj kev saib xyuas: qee qhov chaw sib kis tsis tas yuav tsum tau saib xyuas, thiab qee qhov chaw sib kis yuav tsum tau txo cov sij hawm saib xyuas kom txuag tau cov nqi. Nyob rau lub sijhawm no, kev siv cov roj nplua nyeem MoS2 yog qhov tsim nyog, yooj yim thiab tuaj yeem txuag nyiaj.
Cov yam ntxwv ntawm molybdenum disulfide
Molecular muaj pes tsawg leeg ntawm MoS2: S = Mo = S
MoS2 ceev: 4.5 - 4.8 g / cm³
CAS Nr .: 1317-33-5
MoS2 Mohs hardness: 1-1.5
MoS2 kev sib txhuam coefficient: 0.03-0.05
MoS2 qhov kub thiab txias tsis kam (qhov chaw nyob ib puag ncig): -180 ℃ - 400 ℃
MoS2 compression tsis kam: txog 30000 kg / cm²
Tshuaj stability ntawm MoS2: nws muaj zog corrosion kuj thiab tsis muaj kev cuam tshuam tsuas yog nitric acid, aqua regia thiab boiling hydrochloric acid.
Post lub sij hawm: Mar-08-2023