Nyob rau hauv lub dav hlau ua thiab kev tiv thaiv, phom xiav kua yog zoo li ci ntsa iab, emitting ib qho ntxim nyiam. Txawm hais tias nws muaj lo lus "phom" nyob rau hauv nws lub npe thiab yog Ameslikas siv rau rab phom no thiab kho nws cov kev txwv thiab ua lub luag haujlwm tseem ceeb hauv ntau qhov kev lag luam.
Phom xiav kua, hais txog kev sib xyaw, yog ib tus neeg saib xyuas tshuaj lom neeg. Nws cov khoom siv tseem ceeb feem ntau suav nrog ntau cov quav hlau, cov tshuaj acidic, thiab ntxiv nrog cov teebmeem tshwj xeeb. Phom cov kua xiav ua los ntawm cov chaw tsim khoom sib txawv tuaj yeem muaj qee yam sib txawv hauv cov qauv tshwj xeeb, uas tseem ua rau txhua cov khoom muaj nws tus kheej kev ua haujlwm tshwj xeeb. Piv txwv li, qee yam phom xiav yuav ntxiv cov catalysts tshwj xeeb los ua kom nrawm dua cov tshuaj tiv thaiv kev ua haujlwm thiab txhim kho ntau dua; Qee qhov kev ntsuas ntawm kev hloov kho ntawm cov kav dej hlau kom tau txais cov khaub ncaws zoo dua thiab cov yeeb yaj kiab xiav xiav oxide.
Lub hauv paus ntsiab lus ntawm kev txiav txim ntawm phom xiav kua yog raws cov nyom thiab ingenious cov kev coj noj coj ua. Thaum phom xiav tau kua los rau hauv kev sib chwv hlau, cov tshuaj acidic sib xyaw ua ntej ua rau cov roj steel, impurities, thiab ua kom cov roj av. Tom qab, hlau ntsev tau tawm tsam cov kev hloov pauv ntawm thaj av no, qhov twg cov hlau athidized rau lwm yam hauv cov kua xiav ua kua, maj mam sib haum cov yeeb yaj kiab xiav oxide. Qhov yeeb yaj kiab oxide no tsis yog ib qho yooj yim txuas, tab sis yog nruj nreem sib khi rau cov hlau substrate, zoo li muab cov cuab yeej muaj zog ntawm cov hlau. Nws tsis yog hloov cov tsos pom xim ntawm cov hlau, tab sis tseem ceeb tshaj, ua tau zoo heev rau kev tiv thaiv ntawm cov hlau.
Nyob rau hauv cov nqe lus ntawm daim ntawv thov, lub xub ntiag muaj phom xiav kua tuaj yeem pom txhua qhov chaw. Hauv kev tsim hluav taws thiab kev lag luam txij nkawm, kev siv phom phom xiav muaj keeb kwm ntev. Cov phom, raws li cov riam phom ua ntej thiab cov cuab yeej siv, cov khoom siv hlau kom muaj cov hnav zoo, corrosion tsis kam, thiab qis refendity. Cov yeeb yaj kiab oxide xiav tsim rau ntawm rab phom ntawm rab phom tau kho nrog cov kua xiav ua kua tuaj yeem tiv thaiv ib puag ncig sab nraud thiab txuas ntxiv rau lub neej ntawm cov phom. Nyob rau tib lub sijhawm, qhov kev kho qis tsawg qhov kev pab cuam deb kuj muaj txiaj ntsig zoo rau kev txo qis kev pheej hmoo ntawm cov hom phiaj cuam tshuam thaum muaj kev sib ntaus sib tua lossis kev cob qhia kev sib ntaus sib tua lossis kev sib ntaus sib tua.
Ntxiv nrog rau kev thaj tsam ntawm cov phom, hauv kev tsim kho tshuab, phom ntsuab xiav tau pom nws cov txuj ci. Ntau hom neeg kho tshuab, xws li Shafts, zog, bolts, bolts, thiab lwm yam, ntsib teeb meem xws li kev hnav thiab corrosion thaum siv sijhawm ntev. Los ntawm kev siv phom xiav kev siv kua, cov yeeb yaj kiab tiv thaiv tau txhim kho lawv cov kev coj ua, txo cov kev sib txhuam ntawm cov tshuab. Hauv cov tsheb tsim, qee cov ntsiab lus tseem ceeb, xws li Crankshaft thiab txuas nrog phom xiav, tab sis kuj tseem txhim kho kev ua tau zoo thiab kev ntseeg tau ntawm tag nrho lub cav.
Hauv kev ua haujlwm txhua hnub, kev siv phom phom xiav kua kuj ntxiv cov nyom ntawm cov khoom lag luam. Piv txwv li, qee cov cuab yeej txiav kom loj thiab tab tom kho nrog cov xim xiav thiab muaj kuab heev ntawm cov khoom lag luam, ua rau nws ruaj khov dua. Kuj tseem muaj qee cov khoom siv hlau, xws li tooj liab thiab hlau ornaments, uas tau raug kho nrog cov kua txob xiav ua kua kom ua tiav cov xim muaj txiaj ntsig zoo ntawm cov khoom lag luam.
Piv nrog rau lwm txoj kev kho mob hlau nto, phom xiav kua muaj qhov tseem ceeb. Firstly, kev siv thev naus laus zis rau cov kua xiav xiav yog qhov yooj yim, tsis tas yuav muaj cov cuab yeej ua haujlwm thiab cov nqi siab. Tsuas yog tshem cov hlau seem hauv phom xiav kua lossis thov pleev xim kom ua tiav kev ua tiav, uas yog txaus nyiam rau qee cov txheej txheem me me lossis cov txheej txheem me me. Thib ob, cov yeeb yaj kiab xiav oxide tsim ntawm cov hlau saum npoo av tom qab hnav zoo nkauj thiab hnav tsis muaj kev tiv thaiv ntev. Ntxiv mus, cov xim ntawm cov yeeb yaj kiab oxide xiav oxide yog cov khaub ncaws zoo nkauj thiab zoo nkauj, uas tuaj yeem ntsib cov neeg siv khoom sib txawv rau cov khoom lag luam.
Txawm li cas los xij, tseem muaj qee qhov kev ceev faj kom raug coj thaum siv phom xiav kua. Vim muaj cov tshuaj yeeb hauv phom xiav, uas muaj qee qhov kev tiv thaiv, kom tsis txhob raug kaw rau ntawm daim tawv nqaij thiab cov khoom siv phom sij, kom tsis txhob raug kaw rau ntawm daim tawv nqaij thiab lub qhov muag nrog cov kua xiav. Nyob rau tib lub sijhawm, cov txheej txheem hlau txheej yuav tsum tau huv thiab nruab nrab ntawm cov kua xiav ua kua ntawm cov npoo thiab tiv thaiv ib qho kev cuam tshuam rau kev siv tom ntej. Ntxiv rau, tshwj xeeb saib xyuas yuav tsum tau them rau cia ntawm rab phom xiav kua. Nws yuav tsum tau muab tso rau hauv qhov chaw txias, qhuav, tsis muaj cua sov ib puag ncig kom ntseeg tau tias qhov zoo thiab ruaj khov ntawm cov kua xiav.
Rab phom xiav, raws li ib tug neeg sawv cev hlau txawv, ua raws li nws cov kev siv, cov kev siv ntau, cov kev ua haujlwm tseem ceeb. Nrog kev nce qib nruam ntawm thev naus laus zis thiab txhim kho cov kua muag ua ntej, nqa yooj yim dua thiab xav tsis thoob rau peb lub neej thiab kev tsim khoom.