Histori ea ho iphetola ha lintho ea lisebelisoa tsa ho ferekana ha likoloi

Nts'etsopele ea lisebelisoa tsa ho ferekana ha likoloi li arotsoe ka mekhahlelo e meraro e latelang: mohato oa pele ke sethala sa nts'etsopele ea lisebelisoa tsa brake, haholo-holo li-drum brakes;mohato oa bobeli ke mohato oa tsoelo-pele e potlakileng ea lisebelisoa tsa brake , Lisebelisoa tse ngata tse ncha li ile tsa qala ho tsoaloa.Mokhahlelo ona ke mariki a sebelisang mariki a disk haholo;mohato oa boraro ke sethaleng ha thepa ea mariki e ntse e tsoela pele ho fihla tlhōrōng ea eona, 'me sethaleng sena ke brake eo haholo-holo e sebelisang li-brake tsa disc, mefuta e sa tšoaneng ea thepa e ncha e hlaha ka molapo o sa feleng.

Tekanyetso ea tekheniki le sebopeho sa thepa ea brake ea koloi

1.1 Maemo a Setsebi

Ntlha ea pele, thepa e nepahetseng le e boreleli ea anti-friction.Lintho tse nepahetseng le tse tsitsitseng tse thibelang khohlano li ka netefatsa khohlano e "bonolo".Ea bobeli, matla a maholo a mochine le thepa ea 'mele.Matla a mochine a ka etsa bonnete ba hore thepa ha e na tšekamelo ea ho senyeha le ho qoba liphello tse tebileng tse ka bakoang ke ho hlōleha ha braking.Ea boraro, lerata le tlaase la braking.E le ho sireletsa tikoloho, lerata la braking ea koloi ha lea lokela ho feta 85dB.Ntlha ea bone, fokotsa ho apara ka chassis.Ts'ebetso ea braking e lokela ho qoba ho senyeha le mengoaha ho disc ea friction.

1.2 Sebopeho sa lisebelisoa tsa brake friction

Ea pele, li-binders tsa organic.Li-phenolic resin le li-phenolic resin tse fetotsoeng ke mefuta e 'meli ea bohlokoa haholo.Ea bobeli, lisebelisoa tse matlafalitsoeng ke fiber.Likhoele tsa tšepe li nka sebaka sa asbestos joalo ka thepa ea mantlha, 'me likarolo tsa ho tlotsa, li-filler le li-modifiers tsa likhohlano li kentsoe ka har'a tšepe ebe li siling ho etsa lisebelisoa tsa brake friction.Ea boraro, ho tlatsa.Li-reagents tse amanang tse entsoeng le li-reagents tse laolang thepa ea likhohlano li etsa karolo ena.

1.3 Tlhophiso ea Lisebelisoa tsa Brake tsa Likoloi

1Ho tloha ka 1970, tsoelo-pele ea eona e 'nile ea sitisoa ke ts'ebetso e mpe ea ho fetisa mocheso le ho eketsa liaparo tsa thepa.
2Tšepe ea calcined le koporo le litšepe tse ling li thata ho arola le ho kopanya habonolo.ho se sebelisoe.Ho e-na le hoo, lisebelisoa tsa tšepe tse arohaneng hantle tse entsoeng ka koporo le tšepe ha li sebelisoe haholo ka lebaka la theko e phahameng, mehato e feteletseng ea tlhahiso, le ho hlahisa lerata habonolo.
3Leha ho le joalo, likhoele tsa eona tsa tšepe li na le mafome habonolo ’me li lebisa ho koaleheng ho tebileng ’me mathata a mang e sa ntsane e le sehlooho sa lipatlisiso tse entsoeng ke litsebi tse tsoang mefuteng eohle ea bophelo.
4Empa theko e phahameng e boetse e lekanyetsa papatso ea eona.Machabeng, naha ea heso e maemong a etelletseng pele ho lokiseng lisebelisoa tse fapaneng tsa brake ea carbon/carbon.
(5) Lisebelisuoa tse fapa-fapaneng tsa brake friction lebaleng la lirafshoa tsa boenjiniere: litšoaneleho tsa lebelo le tlaase la ho apara, mocheso o phahameng oa mocheso le ho thibela likhohlano li entse hore bafuputsi ba bangata ba sebelise thepa ena e sa sebeliseng tšepe ho hlahisa thepa ea mariki, 'me tsoelo-pele e entsoe. .Leha ho le joalo, bofokoli ba eona ba ho robeha habonolo bo boetse bo fokotsa sebaka sa eona sa kopo.

Mokhoa oa nts'etsopele ea lisebelisoa tsa brake tsa likoloi tsa malapeng

Hajoale, moralo oa sebopeho sa thepa e ntse e le qalo ea ho etsa lipatlisiso tsa lisebelisoa tsa ho ferekana ha likoloi.Le hoja mekhoa e fapana ho ea ka linaha, ho ntlafatsa ts'ebetso ea lisebelisoa tse ncha tsa khohlano le ho finyella litlhoko tsa tšireletso ea tikoloho e ntse e le sepheo sa ho qetela.Tlas'a tataiso ea khopolo ea nts'etsopele ea moshoelella, sepheo sa nts'etsopele ea lisebelisoa tsa brake friction e ntse e tsoela pele molemong oa lerata le tlase 'me ha ho na tšilafalo.Tsoelopele ena e boetse e tsamaellana le mokhoa oa hajoale le litlhoko tsa sechaba.Ka nts'etsopele e potlakileng ea theknoloji ea tlhahiso, nts'etsopele ea thepa ea brake ea koloi e tla bonts'a litšobotsi tse fapaneng.Lisebelisoa tse fapaneng tsa brake li ka khethoa bakeng sa likoloi tse nang le maemo a leholimo a fapaneng, libaka le mesebetsi.Ka tsela ena, ts'ebetso ea braking ea koloi e ka bapala ts'ebetso e phahameng ea ts'ebetso le ts'ebetso e phahameng ea braking.

Tlas'a maemo a tloaelehileng, tsoelo-pele ea mahlale le thekenoloji ke tiisetso ea ho ntlafatsa le ho fapanyetsana ha thepa ea brake friction, hape e ka finyella litlhoko tsa indasteri ea likoloi.Mefokolo ea fiber e le 'ngoe e matlafalitsoeng e ke ke ea qojoa, bokaholimo bo boreleli ba fiber ea khalase bo thata ho kenella ka resin;thepa ea tšepe e thata ho qoba bothata ba mafome;carbon material e rarahane tshebetsong, e theko e phahameng, mme ho thata ho e kgothalletsa.Ka hona, likhoele tse nyalisitsoeng li fetohile sepheo sa lipatlisiso sa linaha tse fapaneng.Lithapo tsa tšepe, likhoele tsa k'habone, likhoele tsa k'habone le likhoele tsa koporo li ka sebelisa melemo e fapaneng, tsa fana ka papali e felletseng molemong oa likhoele, tsa fokotsa litšenyehelo, le ho ntlafatsa ts'ebetso.E le ho rarolla bothata ba phenolic resin tlas'a ts'ebetso ea mocheso o phahameng, likhoebo tse ngata le mekhatlo ea lipatlisiso tsa saense li sebelisa lisebelisoa tse ling tse tala tse kang butylbenzene ho etsa phenolic resin e fapaneng le e fetileng ka lipatlisiso le nts'etsopele ea bona.Ka hona, resin e nchafalitsoeng ea phenolic resin hape ke tataiso e ncha bakeng sa lipatlisiso le nts'etsopele ea lisebelisoa tsa ho ferekana ha likoloi.

Akaretsa

Ho akaretsa, nts'etsopele ea lisebelisoa tsa brake ea likoloi e hlahella ka ho latellana ho nts'etsopele ea likoloi, e nkileng karolo ea ho khanna ho ntlafatsa ts'ebetso ea braking ea likoloi.Ka nts'etsopele ea mahlale a macha le lisebelisoa tse ncha, mokhoa oa nts'etsopele ea lisebelisoa tsa ho ferekana ha likoloi o tla bonts'a mefuta e fapaneng le ts'ebeliso e tlase, 'me ntlafatso ea mahlale a thepa le eona e tla khothaletsa nts'etsopele ea lisebelisoa tsa ho ferekana ha likoloi.