Babbitt alloy yog cov khoom siv hlau uas muaj keeb kwm ntev. Nws tau tsim los ntawm Asmeskas tus neeg tsim khoom Isaac Babbitt hauv xyoo 1839, yog li nws tau muab npe rau nws. Babbitt tau tsim cov hlau no hauv Boston nrog lub hom phiaj ntawm kev daws qhov teeb meem ntawm kev hnav khaub ncaws hnyav ntawm cov khoom siv lub tshuab thaum lub sijhawm ntawd. Nws invention zoo heev ncua kev pab cuam lub neej ntawm bearings, yog li txhawb txoj kev loj hlob ntawm Industrial Revolution.
Muaj nuj nqi
Lub luag haujlwm tseem ceeb ntawm Babbitt alloy yog siv los ua cov khoom siv zawv zawg bearings. Sliding bearings yog ib hom kabmob uas muaj nyob rau hauv cov tshuab thiab cov khoom siv, siv los txhawb cov rotating shafts thiab txo kev sib txhuam. Babbitt alloy muaj cov khoom zoo los tiv thaiv kev sib txhuam, thiab tuaj yeem tswj kev sib txhuam tsis tshua muaj kev sib txhuam thiab hnav tsis tshua muaj nyob rau hauv kev ua haujlwm siab ceev thiab kev thauj khoom siab, yog li tiv thaiv lub tog raj kheej thiab cov kabmob thiab txuas ntxiv lub neej ntawm cov khoom siv.
Cov haujlwm ntawm Babbitt alloy muaj xws li cov hauv qab no:
Txo kev sib txhuam: Qhov saum npoo ntawm Babbitt alloy muaj qhov sib txhuam qis, uas tuaj yeem txo qhov kev sib txhuam ntawm cov ncej thiab cov kabmob.
Anti-hnav: Cov hlau cov ntsiab lus hauv cov hlau ua ib qho nyuaj microstructure uas tuaj yeem tiv taus hnav.
Absorb vibration thiab suab nrov: Cov khoom siv ntawm Babbitt alloy ua rau nws nqus kev co thiab suab nrov tsim tawm thaum lub tshuab ua haujlwm, muab qhov chaw ua haujlwm zoo dua.
Nws tus kheej-lubricating zog: Babbitt alloy muaj lubricity zoo thiab tuaj yeem ua haujlwm ntxiv txawm tias cov roj nplua nyeem tsis txaus.
Kev faib tawm
Babbitt alloys feem ntau yog muab faib ua pawg hauv qab no raws li lawv qhov muaj pes tsawg leeg thiab kev siv:
Tin-based Babbitt alloys: Cov khoom tseem ceeb ntawm hom hlau no yog tin, thiab nws feem ntau muaj cov khoom xws li antimony, tooj liab thiab txhuas. Tin-based Babbitt alloys muaj kev tiv thaiv zoo heev thiab lubricity zoo, thiab haum rau nruab nrab-ceev thiab siab-load ua haujlwm ib puag ncig.
Lead-based Babbitt alloys: Cov khoom tseem ceeb ntawm cov hlau no yog cov hlau lead, thiab nws feem ntau muaj cov khoom xws li antimony, tin thiab tooj liab. Lead-based Babbitt alloys muaj cov nqi qis dua thiab tsim nyog rau qhov chaw ua haujlwm qis thiab lub teeb-load, tab sis lawv cov corrosion kuj thiab lubricity tsis zoo li cov tin-based Babbitt alloys.
Copper-based Babbitt alloys: Cov khoom tseem ceeb ntawm cov hlau no yog tooj liab, thiab nws feem ntau muaj cov khoom xws li zinc, tin thiab txhuas. Copper-based Babbitt alloys muaj zog dua thiab hardness, thiab yog haum rau high-loading thiab high-temperature ua hauj lwm ib puag ncig, tab sis lawv cov kev sib txhuam coefficient yog siab dua.
Siv
Babbitt alloy yog siv dav hauv ntau hom khoom siv tshuab, feem ntau yog siv los tsim cov zawv zawg bearings. Cov hauv qab no yog cov chaw siv tseem ceeb ntawm babbitt alloy:
Automotive kev lag luam: Babbitt alloy yog dav siv nyob rau hauv bearing Cheebtsam nyob rau hauv lub tsheb cav los xyuas kom meej tias lub cav tswj tsis tshua muaj kev sib txhuam thiab tsis tshua muaj hnav nyob rau hauv high kub thiab high-ceev ua hauj lwm tej yam kev mob.
Shipbuilding kev lag luam: High-strength thiab hnav-resistant bearing cov ntaub ntawv yuav tsum tau nyob rau hauv lub nkoj cav thiab propulsion systems, thiab babbitt alloy yog ib qho zoo tagnrho xaiv.
Kev thauj mus los hauv kev tsheb ciav hlau: Cov kabmob ntawm cov tsheb ciav hlau thiab cov neeg caij tsheb siv babbitt alloy los xyuas kom muaj kev ruaj ntseg thiab kev nyab xeeb ntawm cov tsheb ciav hlau thaum khiav ntawm kev kub ceev.
Aerospace: Babbitt alloy yog siv nyob rau hauv aerospace teb los tsim bearings rau aircraft xyaw thiab lwm yam tseem ceeb Cheebtsam kom tau raws li qhov yuav tsum tau ua hauj lwm ntawm kub kub, siab kub thiab kub ceev.
Heavy machinery: Babbitt alloy yog dav siv hauv cov tshuab hnyav thiab khoom siv xws li metallurgy, mining, thiab kev tsim kho, muab cov kev daws teeb meem txhim khu kev qha.
Cov khoom siv fais fab: Babbitt alloy bearings yog siv rau hauv cov khoom siv hluav taws xob xws li cov tshuab hluav taws xob thiab cov khoom siv hluav taws xob kom ntseeg tau tias cov khoom siv tau ntev thiab ruaj khov.
Raws li cov khoom siv nrog cov keeb kwm ntev thiab daim ntawv thov dav, Babbitt alloy tau dhau los ua ib qho tseem ceeb ntawm cov cuab yeej siv tshuab vim nws cov khoom zoo heev los tiv thaiv kev sib txhuam, tiv thaiv hnav, nws tus kheej lubrication thiab vibration absorption zog. Nrog rau kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis tsis tu ncua, kev sib xyaw thiab kev ua tau zoo ntawm Babbitt alloy tseem ua kom zoo dua qub thiab txhim kho, thiab txuas ntxiv muab cov kev daws teeb meem txhim khu kev qha rau cov cuab yeej siv tshuab hauv ntau yam lag luam.
