Li-sealants tsa likoloi

Automotive sealant ke ntho e bonahalang, e kang paste e sebelisetsoang ho koala ho lutla ka koloing. Ka tšebeliso e nepahetseng ea sebopeho, phallo ea antifreeze, metsi, oli le maro a mang a koloi a ka felisoa. E ka boela ea sebelisoa bakeng sa ho kopanya libaka tse fapa-fapaneng le ho tlatsa mapetsong.

Mefuta ea li-sealants tsa likoloi

Li-sealants tsa likoloi li ka aroloa ho ea ka mekhoa e mengata, empa tse ngata ka ho fetisisa tsa tsona ke: ka ho hlophisoa (silicone, anaerobic, synthetic, polyurethane le mocheso) le ka tšimo ea kopo (bakeng sa 'mele, bakeng sa lithaere, bakeng sa tsamaiso ea ho ntša metsi, radiator, bakeng sa likhalase le mabone a pele, bakeng sa enjene, joalo-joalo).

Li-silicone sealants

Li-sealants tse thehiloeng ho silicone li mamella mocheso 'me li khona ho mamella mocheso ho fihlela ho +300 °C. Li ka sebelisoa bakeng sa likarolo tse ngata tsa enjene. Thepa e tlatsa likheo ho fihlela ho 6 mm thick, 'me e hanyetsa khatello e phahameng le lebelo la mosebetsi.

Ha o sebetsa le silicone e phahameng mocheso sealant bakeng sa koloi, ho hlokahala hore ka ho feletseng hloekisa likarolo ho kopanngoa, e leng e nyenyane minus.

Libaka tsa ts'ebeliso ea metsoako ea silicone: ho koala likheo ho fihlela ho 7 mm ka boholo holim'a libaka leha e le life tsa lienjine, li-gearbox, li-axle tse ka pele le tse ka morao tsa koloi, manonyeletso le ho kopanngoa ha li-cylinder liners, hammoho le likarolo tsa gluing tse entsoeng ka polasetiki le khalase - mabone a pele, mabone a ka thōko, li-hatch, mabone a marang-rang.

Anaerobic sealant

Li-sealants tsa Anaerobic li na le thepa e thatafalang ha e kopana le bokaholimo ba tšepe likheong tse moqotetsane moo oksijene ea sepakapaka e ke keng ea kena. Ka hona, e le hore sebopeho se polymerize, hoa hlokahala ho kopanya ka thata likarolo tsa likarolo. 

Melemo ea lipina tsa anaerobic e boetse e kenyelletsa khanyetso e phahameng ea lik'hemik'hale tse mabifi, ho thothomela, ho theoha ha khatello le mocheso. Sebopeho se boetse se thibela ho bola, oxidation, khase le ho lutla ha metsi.

Joalo ka bofokoli ba thepa, motho a ka reha ho tlatsoa ha likheo tse nyane ho tloha ho 0,05 ho isa ho 0,5 mm. Ho tla hlokahala activator ho etsa polymerize sebopeho sebakeng se seng sa tšepe kapa ka mocheso o tlase.

Bophahamo ba li-anaerobic sealants ke ho tiisa, ho lokisa le ho tiisa manonyeletso a khoele le a flanged, likarolo tsa cylindrical le li-welds.

Synthetic sealant

Li-synthetic sealants ke lisebelisoa tse ncha tse seng li so fumane botumo bo bongata har'a mechini ea likoloi le bakhanni ba likoloi. Leha ho le joalo, thepa ena e na le melemo e mengata:

• Elasticity e phahameng.

• Ho hanyetsa mongobo o phahameng, ultraviolet, tšenyo ea mechine.

• Lintho tse phahameng tsa sekhomaretsi, tse qobang ho phekoloa pele ho holim'a metsi pele li sebelisa sealant.

• Bonolo ba tšebeliso.

• Multifunctionality le versatility.

Bo-makheneke ba bang ba likoloi le ba chesehelang likoloi ba bolela hore ho feto-fetoha ha eona ho bakoa ke bofokoli ba thepa. Batho ba bangata ba khetha li-sealants tse moqotetsane tse etselitsoeng likarolo tse itseng le likarolo tsa koloi.

Polyurethane sealant

Bonds libaka tse fapaneng 'me e hlahisoa ka mefuta e mengata ea mebala, e leng se u lumellang hore u khethe moriti bakeng sa ho lokisoa sebakeng se totobetseng. Lik'hemik'hale tsa polyurethane li sebelisoa e le li-sealant bakeng sa ho khomarela lifensetere tsa koloi, bakeng sa ho lokisa mabone, bakeng sa ho koala seam, le ho tlosa likheo likarolong tsa 'mele.

mocheso sealant

E sebelisoa bakeng sa likarolo tsohle tsa enjene le likarolo tse ling. Ho entsoe metsoako e khonang ho mamella mocheso ho fihlela ho likhato tse 3500. Empa bakeng sa ho lokisa likarolo tsa likarolo tsa enjene, ho lekane ho mamella likhato tse 2000.

Libaka tsa ts'ebeliso ea li-autosealants

Ho itšetlehile ka morero, sehlahisoa se sebelisoa e le sealant bakeng sa:

• mabone a koloi. E u lumella ho khutlisa ho tiea ha optics haeba ho ka senyeha kapa ho nkeloa sebaka sa khalase ea lebone la hlooho.

• lifensetere tsa koloi. Mokhoa o motle ka ho fetisisa oa ho khomarela khalase ea koloi ea koloi le mekhoa e meng ea lipalangoang;

• enjene ea koloi. Mokhoa o motle oa ho netefatsa polokeho ea likarolo tsa sebopeho sa yuniti ea matla. Li sebelisoa ha li nkela pompo sebaka, bakeng sa ho tiisa sekoahelo sa valve le pan ea phetisetso;

• lithaere tsa koloi le li-disk. E thusa maemong a tshohanyetso, i.e. nakong ea ho phunyeha le ho senyeha ha kamore le lithaere tse se nang tube. E u lumella ho etsa litokiso kapele seterateng;

• moea o futhumatsang koloi. Ha e thuse feela ho felisa, empa hape le ho thibela ho lutla ha refrigerant, ka hona hangata e sebelisoa e le prophylactic;

• seams koloi. E sebelisoa ho lokisa 'mele - ho tiisa seams ea hood, kutu, underbody, mamati.

• ho tiisa khoele. Mekhabiso e etselitsoeng likhokahano tse nang le likhoele li thibela ho lutla ha liphaephe le liphaephe tse lutlang libakeng tseo ho luloang ho tsona. E fana ka khoele e tiileng e lekanang le tlas'a khatello e phahameng.

Litekanyetso tsa Khetho ea Sealant

Ha u khetha sealant, u lokela ho ela hloko ho lateloa ha litšobotsi tsa eona tsa tekheniki le likarolo tsa ts'ebetso ea likarolo.

1. Parameter ea bohlokoa ea ho khetha sealant ke thepa ea lintho tse sebetsang ka har'a sehlahisoa: tekanyo ea ho hanyetsa khatello le meroalo ea ho sisinyeha, elasticity ka mor'a ho thatafala le ho tšoarella.

2. Ho ba teng ha mokelikeli le tlhokahalo ea sethunya sa caulking le tsona li phetha karolo ea khetho ea moemeli oa caulking.

3. Haeba motsoako oa ho tiisa o khetholloa ka ho hanyetsa mocheso o phahameng, ha oa lokela ho sebelisoa likarolong tsa enjene.

4. Ha ho hlokahale ho reka li-sealants ka liphutheloana tse kholo tsa molumo: ha hoa lokela ho boloka sealant e setseng, kaha e tla lahleheloa ke thepa ea eona ka nako.

Bakhanni ba likoloi ba boetse ba ela hloko hore na ntho eo e omella nako e kae. Joalokaha ho se ho boletsoe ka holimo, lipina tsa anaerobic li thatafala ha ho se na oksijene. Sena se bolela hore mokhanni o na le nako ea ho khutsisa le ntle le ho potlakela ho sebelisa moemeli holim'a likarolo ebe o li kopanya ntle le tšabo ea hore ntho e tla thatafala pele ho nako.

Li-silicone sealants li phekola ka nako ea metsotso e 10, empa ha li hloke ho nepahala ha kopo e khethehileng, kahoo li ka sebelisoa le ke bakhanni ba se nang phihlelo. Ka lehlakoreng le leng, tšebeliso ea lihlahisoa tsa silicone e loketse ha ho koala likheo tse tebileng, ha metsoako ea anaerobic e khona ho tlatsa litlolo ka botebo bo sa feteng 0,5 cm.

Litlhahiso tse qaqileng bakeng sa tšebeliso ea li-sealants, hammoho le tlhahisoleseding ea hore na motsoako oa ho tiisa o nka nako e kae ho omella, o ka fumanoa litaelong tse fanoeng ke moetsi. bona hape

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