Putty lub cev ntawm koj lub tsheb koj tus kheej tsis yog qhov nyuaj. Koj tsuas yog xav tau kev ua siab ntev, qhia kev rau siab thiab ua raws nraim li txhua qhov kev pom zoo uas piav qhia hauv qab no. Cia peb tham txog qhov kev ua yuam kev tseem ceeb thaum tso lub tsheb loj.
Dab tsi putties yog
Cia peb pib nrog cov fiberglass putty. Nws yog ntawm ob hom. Cov no yog "Fiber" - cov fibers loj thiab "Microfiber" - cov qauv loj. Ua haujlwm rau daim ntawv thov ntawm thawj (ntxiv dag zog) txheej. Kuj tseem muaj cov muab tso thoob ntiaj teb, nws tau thov ob qho tib si rau thawj txheej thiab ntawm cov ua tiav, twb ua ntej phau pib. Muaj ntawv tso rau ntawm cov yas, xov putty, putty nrog txhuas muab tub lim. Tab sis ntau tus neeg ua yuam kev thaum ua haujlwm nrog txhua yam ntawm putty, uas yog peb yuav tham txog.
Qhov kev ua txhaum tsis zoo tshaj plaws yog tias txhuas cov ntawv txhuas yog qhov loj tshaj ntawm muab tso. Thawj qhov kev xav yog tias txhuas yog hlau ua kom muaj qhov ntxiv dag zog no putty. Tab sis qhov no tsuas yog ib lub tswvyim hais ua dab neeg loj thiab tsis zoo xwb. Xav rau koj tus kheej, txhuas cov xaim yog nyob rau hauv daim ntawv ntawm hmoov, lawv yog qhov tsawg heev thiab tsis txuas nrog txhua txoj kev, thiab hais tias lawv qee qhov ntxiv dag zog rau qhov putty yog qhov tsis muaj qhov xaus.
Thiab lub ntsiab muaj nuj nqi yog hloov ua cua sov. Aluminium muaj cov thermal conductivity zoo heev. Dab tsi yog nws rau? Cov txheej txheem no siv rau saum lub kaus mom, ru tsev, rau cov chaw uas muaj kev hloov pauv kub sai sai hauv qhov txias. Piv txwv li, peb pib lub cav, cov hlau ua kom sov thiab ua kom sov sai dua lub putty thiab cov hlau maj mam tev tawm, lossis yog tias cov putty tuav zoo, ces nws tawg.
Coob tus neeg xav tias qhov no yog kev tawg vim qhov ua daim ntawv thov ntawm tuab txheej. Tab sis tsis yog, nws tsuas yog vim qhov hloov kub. Thiab txhuas tso cai rau koj kom sai sai kub los ntawm cov hlau thiab tusyees kom sov lub putty, yog li qhov sib txawv ntawm qhov nthuav dav ntawm qhov putty thiab cov hlau yuav tsawg heev.
Qhov thib ob ua txhaum yog qhov tsis raug daim ntawv thov ntawm txheej. Coob tus neeg sim txo qhov kev siv ntawm cov khoom, thiab yog tias lub qhov yog me me, ces lawv sim txo nws los ntawm thawj txheej. Thiab yog li nws hloov tawm ib txheej loj heev thiab nws yog fraught nrog qhov tseeb tias thaum koj nteg tawm txheej tuab ntawm cov khoom uas nrog cov ua kom tawv, nws yuav qhuav sai heev. Lub kaum txheej sab saud sai sai thiab nws hloov tawm tias huab cua tsis nkag mus rau qhov qis dua kom nqa tawm cov tshuaj tiv thaiv mus rau qhov kawg, thiab nws nqes mus ntau. Raws li cov txheej qis pib qhuav, lub sab saud yuav tawv tag nrho, thiab ib qho qis dua pib pib nyem rau sab saud.
Nws yuav luag tas nrog qhov tseeb tias ib qhov tawg tshwm sim hauv lub putty rau hlau. Yog li, koj yuav tsum tau saib xyuas cov khaubncaws sab nraud povtseg thiab thov lawv maj mam nrog interlayer kom qhuav.
Lwm qhov kev ua txhaum cai tag nrho yog ziab nrog lub tshuab ziab plaub hau lossis ib lub teeb uas tsis zoo. Cov kev ua no tuaj yeem rhuav tshem txhua yam. Thaum xub thawj, qhov putty nws tus kheej yuav tsum tau nkag mus rau kev tawm tsam ntawm nws tus kheej, thiab nws zoo dua tsis txhob ziab nws rau thawj kaum feeb. Yog tias koj txawm li cas los txiav txim siab siv cov cuab yeej pabcuam kom ziab cov putty, ces koj yuav tsum ua qhov no rau txoj cai, txwv tsis pub koj tuaj yeem qhuav sai rau txheej sab saum toj thiab hauv qab txheej yuav raug muab khi, yog li ntawd, koj yuav tau txais ib qho tawg lossis ntuag ntawm qhov putty.
Txhawm rau zam qhov tshwm sim no, koj yuav tsum tau qhuav los ntawm sab nraum qab, deb ntawm hlau. Tab sis, feem ntau, tsis muaj kev nkag mus rau cov chaw zoo li no. Rau qhov no, muaj cov teeb ci hluav taws xob uas siv hluav taws xob infrared tawg kom qhuav lub putty los ntawm sab hauv. Tab sis txoj kev zoo tshaj plaws ntawm txoj kev ziab yog kom cia qhov putty qhuav ntawm nws tus kheej yam tsis muaj kev nrawm nrawm nrog cov txheej txheem nrog kev pab ntawm cov khoom siv ntxiv.
Thiab qhov teeb meem loj tshaj plaws uas cov kws tsav tsheb ntsib yog qhov kev sib tw ntawm cov putty.
Qhov no txhais tau tias tom qab tha xim, qhov tshwm sim tsis xwm yeem, pits, vuag, thiab qee zaum cov kab nrib pleb tshwm sim ntawm ntu uas raug. Qhov tshwm sim no tshwm sim, thiab lwm yam, vim tias kev ziab tsis zoo, tab sis feem ntau qhov no yog vim kev tsis saib xyuas qhov xaiv qhov tseeb ntawm sandpaper lis. Ntawm cov kws tshaj lij muaj qhov zoo li no "txoj cai 100" lossis "kauj ruam 100". Qhov no txhais tau tias nrog txhua txheej txheej ntawm putty, qhov gradient ntawm lub sandpaper lis yuav nce tsis ntau tshaj 100 units. Ntawd yog, thawj txheej ntawm putty yog ua tiav nrog 80 ntawv sanding, txheej tom ntej yog tiav nrog 160 lossis 180, txheej tom ntej yuav tiav nrog 240 lossis 260 sandpaper, thiab lwm yam. Qhov no thiaj ua tiav los txhawm rau txo qhov tob ntawm cov khawb los ntawm cov ntawv sandpaper thiab txo qhov txaus siab ntawm lub putty sagging mus rau qhov kev pheej hmoo txaus uas tseem nyob, piv txwv li, los ntawm tus xov tooj 80. Tom qab ntawd, thaum ib feem twb tau qib thiab npaj siv primer, peb thov tus primer thiab txhuam nws nrog ntawv xov tooj 800. Tam sim no peb feem tau npaj rau kev tha xim. Tab sis hais tias yog zaj dab neeg sib txawv kiag li …
