Iyiphi i-Sealant ehamba phambili ye-Exhaust Systems?

Ukuvuza kwe-exhaust kuphazamisa ukusebenza kwemoto, kukhuphula ukuchayeka kwekhabethe kumagesi anobuthi, isiqinisekiso sokwehluleka ngesikhathi sokuhlola ukungcola, futhi kungabangela ukukhuphuka kwesivinini esibizayo kungazelelwe ekusetshenzisweni kukaphethiloli. Isistimu ye-exhaust iyindawo enobutha ebonakala ngokuhamba ngebhayisikili okushisayo okudlulele, ukudlidliza okungaguquki kwe-high-frequency, kanye nemikhiqizo ebolayo. Izinto ezinamathelayo eziningi ezijwayelekile kanye nama-sealant azoshisa ngaso leso sikhathi, alulazeke, noma aphuke ngaphansi kwalezi zimo. Ukukhetha okulungile i-exhaust sealant yesistimu idinga ukufanisa ukwakheka kwamakhemikhali omkhiqizo nendawo ethile yokushisa yokuvuza kanye nezidingo zesakhiwo selunga. Lo mhlahlandlela uhlukanisa indlela yokuhlola yobuchwepheshe yokukhetha i-sealant ethembekile futhi uchaza imikhawulo eqinile yokulungisa i-exhaust yamakhemikhali, uqinisekisa ukuthi usebenzisa inhlanganisela efanele engxenyeni efanele.

• Ithempelesha Iyalela Ikhemistri: Ama-silicone e-RTV asezingeni eliphezulu (njengama-sealant asekelwe ethusi) afinyelela ku-300°C–370°C futhi afanele ama-gaskets namajoyinti ashelelayo, kuyilapho okunamathiselwe okusekelwe ku-ceramic kanye nama-putty kungamelana no-1000°C+ ukuze kulungiswe imifantu eminingi nesakhiwo.

• I-Flexibility vs. Rigidity Trade-off: Osimende nokunamathisela idwala eliqinile futhi lijwayele ukuqhekeka ngaphansi kokudlidliza okukhulu, kuyilapho ama-silicone ahlala eguquguquka kodwa awakwazi ukuvala izikhala ezinkulu noma ukuphatha amazinga okushisa aqondile.

• Ukuphepha Kwenzwa Kuyisibopho: Noma iyiphi into evalekayo esetshenziswa phezulu kwesiguquli se-catalytic kumele ibhalwe ngokusobala njengokuthi 'inzwa-ephephile' ukuze kuvinjwe ukukhipha umoya ekubhubhiseni izinzwa ze-Oxygen (O2).

• Imikhawulo Eqinile Yokulungisa: Ayikho i-exhaust sealant ewukulungiswa kwesakhiwo unomphela kwepayipi elinqunywe ngokuphelele noma ukugqwala okukhulu; zenzelwe amaphinifa, imifantu yezinwele, kanye nokuvala amalunga emishini.

Inqubo Yempumelelo Yokuvala I-Exhaust

Ukwenza imephu izinga lokushisa lesistimu yokukhipha umoya kuyisinyathelo sokuqala sokuhlonza ukuvuza. Ama-nifold exhaust ngokuvamile adlula u-600°C njengoba ehambisa amagesi avuthayo asuka ekhanda lesilinda. Ngokuphambene, amapayipi angemuva asebenza eduze kuka-150°C. Ukusungula izimfuneko zokushisa eziyisisekelo kuvimbela ukushiswa kwenhlanganisela esetshenzisiwe. Awukwazi ukusebenzisa umkhiqizo onezinga lokushisa eliphansi endaweni eshisa kakhulu futhi ulindele ukuthi isinde emjikelezweni wokuqala wokushayela. Umthwalo oshisayo wehla kakhulu njengoba amagesi ahamba esuka enjini aye kubhampa ongemuva, okusho ukuthi izidingo zamakhemikhali ziyashintsha kuwo wonke ama-flange namalunga.

Ukunyakaza kwenjini nokushaqeka komgwaqo kuhlala kuba nomthelela ekuhlanganisweni kwe-exhaust. Izakhiwo ze-Elastomeric zidingeka ngokuqinile emalungeni ashelelayo lapho insimbi ikhula futhi inkontileka. Ukunamathela okuqinile kuyadingeka ukuze kuqhekeke i-static ezingxenyeni zensimbi ezisindayo, kodwa ukusebenzisa usimende oqinile ekuhlanganyeleni okuguquguqukayo kuzoholela ekuqhekekeni ngokushesha. Isistimu ye-exhaust ilenga kuma-isolator erabha ngokuqondile ukuvumela lokhu kunyakaza. Lapho injini inyakaza ngaphansi komthwalo, inyakazisa izikhwebu zayo, ithumele igagasi lokudlidliza lehle epayipini le-exhaust. Inhlanganisela ephumelelayo yokulungisa kufanele imunce la mandla e-kinetic noma isetshenziswe endaweni emile lapho i-flex ingekho khona.

I-sealant eselashiwe kufanele imelane nama-hydrocarbons angashiswanga, i-acidic condensation, usawoti wasemgwaqweni, kanye nomswakama ngaphandle kokunciphisa. Amagesi e-exhaust aqukethe izakhi ezonakalisayo ezidiliza ngokushesha izibopho zamakhemikhali ezingaphansi. Ukuhlola ukubekezelelana okuphezulu kokuvala izikhala ezingokomzimba kubalulekile ngokufanayo. Izinhlanganisela zamakhemikhali ngokuvamile zikhawulelwe ekuvaleni izikhala zamamilimitha ambalwa ngaphambi kokuba isichibi esibonakalayo noma i-weld idingeke. Amanzi awumkhiqizo wemvelo wokushiswa. Lapho injini ebandayo iqala, amachibi okujiyisa ngaphakathi kwe-muffler namapayipi, axutshwe nesibabule nezinye izinto ezikhiqizwayo ukuze akhe ama-asidi agqwala kakhulu. Izinto zokulungisa kufanele zingavumeli lokhu kuhlasela kwamakhemikhali kwangaphakathi kuyilapho ngesikhathi esifanayo kuliwa nezinsongo zangaphandle njenge-magnesium chloride esetshenziswa emigwaqweni yasebusika.

Ukuqonda ukuthi ukuvuza okungavaliwe okuvuza phezulu kwenzwa ye-O2 kwethula umoya ozungezile kubalulekile ekulawuleni injini. Umoya ongalinganisiwe uhlanekezela ukufundwa kwe-ECU, okubangela isimo esingamanga somzimba. Injini inxephezela ngokulahla uphethiloli oweqile kumasilinda, ikhulise kakhulu ukusetshenziswa kukaphethiloli kanye namapulaki ezinhlansi ezingcolile. Kungakho ukuvala ukuvuza eduze kwesiguquli se-multifold noma se-catalytic akukhona nje ukunciphisa umsindo; kuyinkinga ebalulekile yokuhamba. I-exhaust stream esengozini ishintsha umphumela wokulahla, wehlise ikhono lenjini lokudonsa umoya omusha nophethiloli egunjini elivuthayo kahle.

Ukuze ubonise ngokwengeziwe izimfuno ezibekwe kulezi zinhlanganisela, cabangela amandla okucindezela. Amagesi e-exhaust aphushwa ngaphandle kwamasilinda ngaphansi kwengcindezi enkulu. Ukuvuza kwe-pinhole kusebenza njenge-valve yokukhulula ukucindezela, okuphoqa igesi eshisayo, enesivinini esikhulu ngokumelene nezinto zokulungisa. Uma i-sealant ingenakho ukunamathela okwanele kwesisekelo sensimbi, le ngcindezi izomane ikhiphe isichibi ngaphakathi. I-Mechanical keying-lapho i-sealant ivaleleka khona endaweni enzima yensimbi-ibaluleke kakhulu njengesibopho samakhemikhali ngokwaso.

Izixazululo Eziyinhloko Ze-Exhaust System Sealant

Amakhemikhali ahlukene enza imisebenzi yokulungisa ehluke ngokuphelele kuyo yonke inhlangano yokukhipha umoya. Ukusebenzisa isigaba esingalungile kuqinisekisa ukwehluleka ukulungisa. Kufanele uqondanise umkhiqizo nezidingo ezithile zomzimba nezokushisa zendawo yokulungisa.

I-Room Temperature Vulcanizing (RTV) ama-elastomers elapha abe yirabha eguquguqukayo lapho echayeke kumswakama womkhathi. Lezi zakhiwo zinikeza ukwethembeka okuqinisekisiwe okufika ku-300°C ngokuqhubekayo nokusebenza, nezikhawu ezinyakazayo ezifika ku-370°C. Ziyinketho efanelekile yama-flange gaskets, uxhumo lwepayipi elilingana, kanye namajoyinti avalelwe lapho ukudlidliza kuphezulu. Kodwa-ke, azikwazi ukusinda emazingeni okushisa ahlukahlukene futhi zintula ukuqina kwesakhiwo sokuvala izimbobo ezivulekile ngaphandle kokusekelwa ngokomzimba. I-RTV yezinga eliphezulu ivame ukuba nombala wethusi ngenxa yokwengezwa kwama-flakes ethusi, okuthuthukisa ukudluliswa kokushisa nokuzinza kokushisa. Uma isetshenziswe ngendlela efanele, yenza i-gasket eqinile, eyi-rubbery ehamba nensimbi njengoba ikhula futhi inkontileka.

I-Ceramic, iron, noma i-silicate-based compounds yelapha ngokushisa ibe yisimo esiqinile, esifana nensimbi. Zinikeza ukumelana nezinga lokushisa okwedlulele, okuvamise ukukala phakathi kuka-450°C ngezinga lokunamathisela zensimbi futhi lidlule ku-1000°C kumaceramics aphambili. Izikhathi ezimisiwe zingashesha njengemizuzu engama-30 ngaphambi kokuqala kokwelashwa okushisayo. Lezi zisetshenziselwa kangcono ukuqhekeka kwezintambo zezinwele kuma-manifolds ensimbi ekhonjiwe, izimbobo zamapayipi aqinile, nokugcwalisa izikhala ezimile. Umkhawulo wabo oyinhloko ukuguquguquka kwe-zero uma seselaphekile; asengozini enkulu yokuphuka uma efakwe ejoyintini eligobekayo. Lawa ma-paste ngokuvamile adinga ukuthi injini iqhutshwe ngokungenzi lutho ukubhaka umswakama ngaphandle kwenhlanganisela, iguqule ibe isakhiwo esiqinile se-crystalline esikwazi ukumelana nelangabi eliqondile.

Ama-sealers ayisipesheli aklanyelwe ngqo amasistimu wokudonsa amanzi olwandle amanzi, apholise ngamanzi. Zinezidingo eziphansi zokushisa eziphakeme kodwa zinikeza ukumelana okwedlulele ekungeneni kwamanzi anosawoti, ukugqwala kwe-galvanic, nokwanda kwamalunga. Lezi zinhlanganisela zisetshenziswa ngokuqinile ezindaweni zokukhwelana zensimbi-kuya-insimbi kanye nensimbi-kuya-plastiki emshinini wokukhipha umoya wezikebhe ongaphakathi nangaphandle. Izindawo zasolwandle zinezinselele eziyingqayizivele, njengoba i-exhaust system ivame ukupholiswa ngamanzi aluhlaza adonswa olwandle noma echibini. I-sealant kufanele iqhubeke nokucwiliswa emanzini, ukushaqeka okushisayo okuvela emanzini abandayo ashaya insimbi eshisayo, kanye nokugqwala kukasawoti.

Ngale kwalezi zigaba eziyinhloko, eminye imikhiqizo eyingxube izama ukuvala igebe phakathi kokuguquguquka nokumelana nokushisa okudlulele, nakuba ngokuvamile ingena engozini kokukodwa noma kokunye. Uma ukhetha umkhiqizo, hlala ubeke phambili izinga lokushisa eliphakeme kunokusebenzisa kalula. Ukunamathisela okunzima ukukusebenzisa kodwa okulinganiselwe okungu-1000°C kuzohlala kunesibikhoni esisebenziseka kalula esivutha sibe ngu-400°C uma sisetshenziswa epayipini elingunhlokweni.

Ukuhlola ama-Sealants ngendawo yohlelo lokusebenza

I-manifold ihlala ixhumene ngqo namagesi avuthayo, amele indawo yokushisa ephezulu kakhulu emotweni. I-silicone ye-RTV izohluleka ngokushesha lapha. Le ndawo idinga ukunamathisela okuphikisa ukushisa okwedlulele noma i-putty ekhethekile eminingi. Inhlanganisela kufanele ivikeleke inzwa ukuze ivikele izinzwa ze-O2 ezansi nomfula ekuphumeni okushisayo phakathi nenqubo yokwelapha. Ama-cast iron manifolds adume kabi ngokwenza imifantu yezinwele ngenxa yokushaqeka okushisayo. Ukulungisa lokhu kudinga inhlanganisela engakhula ngezinga elifanayo nensimbi ekhonjiwe ngenkathi igcina ukubamba kwayo ngaphansi kwengcindezi enkulu.

Isiguquli se-catalytic kanye noxhumo olumaphakathi nepayipi luhlangabezana nokushisa okumaphakathi ukuya phezulu kanye nokudlidliza okuphezulu, ngokuvamile kusetshenziswa amalunga ashelelayo noma ama-flange abhowudi. I-silicone ye-RTV ye-copper yezinga eliphezulu ilungele ukuvala izikhala ezincane kulawa malungu omshini. Igcina ukunwebeka okudingekayo ukuvimbela ukuqhekeka ngaphansi kwe-chassis flex ngenkathi uphethe umthwalo oshisayo. Uma ufaka isiguquli esisha se-catalytic, ubuhlalu obuncane be-RTV ephephile yezinzwa ku-flange buqinisekisa isivalo esingangephethiloli, kuvimbela ukukhanya kwenjini yokuhlola esabekayo ye-P0420 okubangelwa ukuvuza okuncane kwe-exhaust okuhlanekezela idatha yenzwa engezansi.

Ngenkathi isebenza ekushiseni okuphansi, ama-muffler namapayipi angemuva abekezelela ukuchayeka kakhulu ekujikeni kwe-asidi yangaphakathi kanye nezici zomgwaqo zangaphandle. Kokubili ama-pastes nama-silicones ayasebenza lapha. Ama-pastes asebenza kahle ekubhaceni izikhonkwane zokugqwala emzimbeni we-muffler, kuyilapho ama-silicone ephuma phambili ekuvaleni amalunga abambene axhuma umbhobho. Ama-muffler avame ukubola kusukela ngaphakathi nangaphandle ngenxa yomswakama ovalelwe. Uma ubamba imbobo ngaphambi kwesikhathi, i-dab ye-refractory paste ingavala. Uma uhlanganisa uhlelo olusha lwe-cat-back exhaust, ukumboza amalunga ashelelayo nge-RTV ngaphambi kokuwacindezela kuqinisekisa ukufakwa okungavuzi okusengahlakazwa kamuva uma kunesidingo.

Amagesi ezithuthuthu akhiqiza ukudlidliza kwemvamisa ephezulu kakhulu futhi afaka izingxenye eziveziwe ezidinga ukuhlanzeka kobuhle. Lokhu kudinga i-silicone yezinga eliphezulu ukuze ivale imikhono eshibilikayo futhi ivimbele umule wegesi ophumayo ukuthi ungangcolisi amapayipi angaphandle. Ama-silicone ampunga noma amnyama avame ukuthandwa kunethusi elikhanyayo ukuze ahlanganiswe okubukwayo, ahlala eqinile kuma-harmonics enjini. Amabhayisikili ezemidlalo kanye nama-cruiser asebenzisa amajoyinti okushelela agcinwe entwasahlobo ahlala enyakaza. Inhlama eqinile ingaphahlazeka phakathi kwamamayela. I-silicone yezinga eliphezulu imunca ukudlidliza, ivale i-exhaust pulse, futhi igcine i-chrome noma i-carbon fiber ihlanzekile ekulandeleleni ikhabhoni emnyama.

Izimoto ezine-Turbocharged ziveza indawo eyingozi kakhulu. Amagesi e-exhaust ashayela i-turbine angadlula ku-900°C. Noma yikuphi ukuvuza kwe-pre-turbo kunciphisa amandla e-kinetic atholakalayo ukuze afake i-compressor, okuholela ekulahlekeni kwamandla amakhulu kanye ne-turbo lag. Ukulungiswa kwepayipi le-pre-turbo up-pipe noma ngobuningi kudinga ukunamathisela kwe-ceramic enesilinganiso esiphakeme kakhulu esitholakalayo, futhi nalapho, kuyizinyathelo zesikhashana ngokuqinile kuze kube yilapho ingxenye ingashiselwa nge-TIG noma ishintshwe.

Imikhawulo Yokulungisa: Lapho I-Exhaust System Seaalant Izohluleka

Izinhlanganisela zamakhemikhali zinamandla acindezelayo kodwa amandla okuqina angenakulinganiswa. Abakwazi ukubamba ipayipi eliphukile ndawonye noma ukusekela isisindo sesistimu yokukhipha umoya. Ukuthembela kunamathisela ukuze ujoyine kabusha ipayipi elinqamukile kuzoholela ekuhlulekeni ngokushesha lapho imoto ishayisa i-bump. I-exhaust system inzima, futhi iziphanyeko zisebenzisa amandla okudonsa emapayipini. Uma ipayipi ligundwa phakathi, akukho inani lokunamathisela noma i-silicone elizolibamba lihlangane. Kufanele usebenzise i-clamp yomkhono oyimishini noma ushise ilunga.

Okunamathiswa nama-silicone kuzophephetha ngaphansi kwengcindezi yokukhipha umoya uma kusetshenziswa phezu kwezimbobo ezinkulu kunamamilimitha ambalwa. Ukuze uthole ama-void amakhulu, ikhemikhali kufanele iqiniswe nge-fiberglass exhaust wrap noma isichibi sensimbi ukuze kunikeze i-substrate yesakhiwo. Cabanga nge-sealant njengodaka, hhayi isitini. Uma unembobo elingana nohlamvu lwemali, kufanele usike ucezu lweshidi, ululolonge epayipini, bese usebenzisa i-sealant ukuze ubophe isichibi ekuphumeni. Ukusebenzisa i-glob ewugqinsi yokunamathisela phezu kwembobo enkulu kuzomane kuphumele ekucindezelweni kwe-exhaust kuqhume imbobo phakathi kwenhlanganisela emanzi.

Ukusebenzisa ama-silicone ajwayelekile angaphephile enzwa phezulu kwesiguquli se-catalytic kukhipha izinhlanganisela eziguquguqukayo phakathi nomjikelezo wokwelapha. Lawa makhemikhali amboza futhi acekele phansi izinzwa ze-O2, avuse amalambu enjini yokuhlola nokusebenza kwenjini okonakele. Ukukhishwa kwe-acetic acid (okunuka njengeviniga) ku-RTV evamile kulimaza kakhulu isici esintekenteke se-zirconium dioxide ngaphakathi kwenzwa ye-oxygen. Njalo qinisekisa ukuthi iphakheji isho ngokucacile 'inzwa iphephile' ngaphambi kokufaka noma iyiphi ikhemikhali eduze kwebhulokhi yenjini.

Ukufaka ama-sealant njengezixazululo zesikhashana eziphumelela kakhulu noma ezingeziwe kuyindlela enembe kakhulu. Ukuwohloka okukhulu, ukugqwala okukhulu, noma ukugunda kwesakhiwo ekugcineni kudinga ukushisela noma ukushintshwa kwengxenye ephelele. Ukugqwala kuwumdlavuza wensimbi. Uma unamathisela imbobo yokugqwala eyodwa, insimbi eseduze nayo cishe iba yiphepha elincane futhi izoqhuma ngesonto elizayo. Ama-sealants akuthengela isikhathi soku-oda izingxenye ezishintshayo noma uphumelele ukuhlolwa okuzayo, kodwa awakubuyiseli ukubola kwe-metallurgical.

Ukushaqeka okushisayo kungenye iphuzu elikhulu lokuhluleka. Uma usebenzisa i-ceramic paste, yelaphe kahle, bese ushayela ngokushesha echibini elijulile, ukupholisa okusheshayo kwepayipi elikhipha umoya oshisayo kubangela ukuba insimbi ifinyeze ngamandla. Ipheshi ye-ceramic eqinile ayikwazi ukuncibilika ngesivinini esifanayo, okubangela ukuthi igunde ipayipi. Ukuqonda ukulinganiselwa ngokomzimba kwezinto ezisetshenziswayo kuvimbela okulindelekile okungenangqondo nokuphinda ukwehluleka.

Izindlela Ezingcono Kakhulu Zokufaka Isicelo Nokwelapha

Ukulungiswa kwendawo kukhomba impumelelo yesibopho. Kufanele ukhiphe konke ukugqwala, amadiphozithi ekhabhoni, amafutha, kanye nomswakama usebenzisa amabhulashi ocingo, i-sandpaper, ne-solvent. Ama-sealant ngeke ahlangane ne-soot noma i-iron oxide evuthayo; zidinga insimbi engenalutho, ehlanzekile ukuze kuzuzwe ukunamathela komshini. Landela lezi zinyathelo eziqinile zokufaka isicelo:

1. Khuhla indawo yokulungisa ngamandla ngebhulashi locingo oluqinile ukuze ususe zonke izikali zokugqwala ezixegayo kanye nensimbi ephephukayo.

2. Sebenzisa i-sandpaper engu-80-grit ukuze uthole insimbi enempilo ezungezile. Lokhu kwakha iphrofayili yendawo emangelengele evumela isivalo ukuthi sikhiyele ipayipi ngomshini.

3. Sula yonke indawo nge-solvent eyomisa ngokushesha njenge-brake parts cleaner noma i-acetone. Ungasebenzisi ama-solvents asekelwe kumafutha. Ivumele ukuthi ikhanyise ngokuphelele.

4. Uma usebenzisa i-silicone ye-RTV endaweni yesiliphu, sebenzisa ubuhlalu obu-3mm obuqhubekayo ngasekugcineni kwepayipi lesilisa, slayida amapayipi ndawonye, ​​bese uqinisa ngokushesha i-exhaust clamp.

5. Uma usebenzisa i-refractory paste ekuqhekekeni, sebenzisa ummese we-putty wepulasitiki ukuze uphoqelele inhlanganisela ekujuleni kwe-fissure. Ungamane uyigcobe phezulu; kufanele ingene emfantwini ukuze ivaleke ngokuphumelelayo.

6. Hlelisa amaphethelo epeshi yokunamathisela ukuze uyifake ensimbi ezungezile, unciphise ithuba lokuthi ibambe udoti noma ivuleke.

7. Vumela umkhiqizo ukuthi uhlale ekamelweni lokushisa ngesikhathi esibekiwe somkhiqizi (imvamisa amahora angu-1 ukuya kwangu-2) ngaphambi kokuqala injini.

8. Ukuze uthole ama-ceramic paste, qala injini bese uyiyeka ingasebenzi imizuzu eyi-10 ukuya kweyi-15. Ukushisa kancane kancane kuzobhaka ukunamathisela, kuxoshe umswakama futhi kuwenze ube nesimo esiqinile. Ungayivuseleli injini ngalesi sigaba.

Hlukanisa phakathi kwesikhathi esisheshayo semizuzu engama-30 nokwelapha okuphelele. Umkhiqizo ungase ukhululeke ngokushesha, kodwa ukwelashwa kwamakhemikhali kanye nemvelo okugcwele amahora angu-24 ngokuvamile kuyadingeka ngaphambi kokuba imoto ithwale kanzima noma ibe manzi. Ama-silicone e-RTV elapha ngokumunca umswakama ovela emoyeni. Ezimweni zezulu ezomile kakhulu, le nqubo ithatha isikhathi eside. I-Refractory paste yokwelapha ngokushisa. Uma ugcoba unamathisele bese ushiya imoto ihlezi endleleni isonto lonke ngaphandle kokusebenzisa injini, unamathisele awukapholi; imane yomile futhi cishe izodilika.

Lapho usebenzisana nama-slip joints, okuncane kuvame ukuba kuningi. Ukusebenzisa amanani eqile e-silicone ngaphakathi kwepayipi kungabangela okungaphezu kokumpintsha ku-exhaust stream. Nakuba lokhu kuvame ukuvutha noma kukhiphe umbhobho, amaglobhu amakhulu ngokwethiyoliyo angagqashuka futhi ahlengezele ngaphakathi kwe-muffler baffles. Faka isicelo okwanele ukumboza izindawo zokukhwelana.

Isiphetho

Isixazululo esingcono kakhulu samakhemikhali sincike ngokuphelele endaweni yesicelo. I-silicone ye-RTV yezinga eliphezulu iyindlela engcono kakhulu yokukhetha amalunga nama-gaskets aguquguqukayo, kuyilapho ama-refractory pastes eyisibopho ekuqhekekeni okushisa okuphezulu namaphinikhodi. Linganisa ukulungisa ngokusekelwe kuzinga lokushisa eliphakeme lokusebenza kwendawo, ukuba khona kokudlidliza noma ukugoba, kanye nosayizi wegebe. Ukusebenzisa umkhiqizo ongalungile kuqinisekisa ukwehluleka, kuyilapho ukukhetha okufanele nokulungiswa kahle kwendawo kuqinisekisa ukuqina okuqinile, uphawu oluqinile lwegesi.

Ukuze wenze ukulungisa okuphumelelayo kokukhipha umoya, landela lezi zinyathelo ezilandelayo:

• Hlola yonke isistimu ye-exhaust ngenkathi injini isebenza (futhi ibanda) ngokuzwa umoya ophumayo ozungeze ama-flange namajoyinti ukuze ukhombe indawo eqondile yokuvuza.

• Khwebula insimbi lapho kuvuza khona nge-screwdriver ukuze uqinisekise ubuqotho besakhiwo; uma insimbi idilika, udinga ipayipi elisha, hhayi isichibi samakhemikhali.

• Thenga umkhiqizo ophephile wezinzwa olinganiselwe ngokuqinile wendawo eshisayo oyilungisayo (unamathisela ama-nifolds, i-silicone yamajoyinti epayipi lomsila).

• Hlanza indawo yokulungisa uye phansi ibe yilutho, insimbi ecwebezelayo usebenzisa isondo locingo nesincibilikisi ngaphambi kokufaka noma iyiphi inhlanganisela.

• Xhumana nethimba lethu lezobuchwepheshe uma udinga isiqondiso esikhethekile ekukhetheni izinhlanganisela zezinhlelo zokusebenza ze-exhaust ezisindayo noma zezimboni.

FAQ

Q: Ihlala isikhathi esingakanani i-exhaust system sealant?

IMPENDULO: Uma isetshenziswa ngendlela efanele endaweni elungiswe kahle ngaphakathi kwesilinganiso sayo sezinga lokushisa, ikhwalithi ephezulu yokunamathisela i-refractory noma i-silicone yezinga eliphezulu ingahlala iminyaka embalwa. Nokho, ngokuvamile kubhekwa njengokulungisa okungeziwe. Ukugqwala okukhulu noma ukudlidliza okusindayo ekugcineni kuzofaka engcupheni ibhondi, edinga ukulungiswa okushiselwe unomphela.

Q: Ngingakwazi ukusebenzisa i-silicone evamile epayipini lokukhipha umoya?

A: Cha. I-silicone evamile yehla ngokushesha emazingeni okushisa angaphezu kuka-150°C. Izingxenye zokukhipha umoya ziwudlula lo mkhawulo. Kufanele usebenzise i-silicone ye-RTV enezinga eliphezulu lokushisa eyakhelwe ngokukhethekile izinhlelo zokusebenza zokukhipha umoya wezimoto, ezingamelana namazinga okushisa aqhubekayo afika ku-300°C.

Umbuzo: Ingabe i-exhaust sealant izophumelela ekuhlolweni kokukhishwa kwemoto?

IMP: Yebo, uma isivalo sivala ngempumelelo ukuvuza futhi sibuyisela iluphu evaliwe yesistimu yokukhipha umoya. Ukuqeda ukuvuza kuvimbela i-oksijini engalinganisiwe ekufundweni kwenzwa e-skewing futhi kuqinisekisa ukuthi wonke amagesi aphumayo ahamba ngendlela efanele ngesiguquli se-catalytic ukuze sihlolwe.

Q: Kuthatha isikhathi esingakanani ukuthi i-exhaust sealant yome futhi yelapheke?

A: Imikhiqizo eminingi inesikhathi esimisiwe semizuzu engama-30 kuya kwengama-60, okusho ukuthi yomile uma uyithinta. Kodwa-ke, ukwelashwa okugcwele ngokuvamile kudinga amahora angu-24. Ama-refractory paste ngokuvamile adinga ukwelashwa okushisayo, okusho ukuthi injini kufanele ingasebenzi ukuze ishise i-exhaust futhi ibhake inhlama ibe yisimo esiqinile.

Q: Ingabe i-exhaust sealant ingalungisa i-gasket yekhanda elipheshuliwe?

A: Lutho neze. Ama-gaskets ekhanda abekezelela izingcindezi zegumbi elivuthayo futhi adinga ama-gaskets ensimbi akhethekile. Ama-exhaust sealant awanawo amandla aqinile kanye nokumelana nengcindezi ukuze avale ikhanda lesilinda esivimbeni senjini.

Umbuzo: Ingabe ukuvuza kwe-exhaust kungenza imoto yami idle uphethiloli owengeziwe?

A: Yebo. Ukuvuza okuphezulu kwenzwa ye-oxygen kuvumela umoya we-ambient ungene kumfudlana we-exhaust. Inzwa ifunda lokhu komoyampilo oweqile njengesimo esithambile, okwenza iyunithi yokulawula injini ijove uphethiloli owengeziwe, okwehlisa kakhulu ukusebenza kahle kukaphethiloli.