Li-Brake Disc li Etsoa Hokae?

Haeba u kile ua ipotsa hore na li-brake discs li etsoa hokae, sehlooho sena se ka u thusa ho utloisisa karolo ena ea bohlokoa ea likoloi.Li-brake discs li entsoe ka lisebelisoa tse ngata tse fapaneng.Tse ling tsa lisebelisoa tsena li kenyelletsa tšepe, motsoako oa ceramic, fiber ea carbon le tšepe e entsoeng ka tšepe.Ithute haholoanyane ka e 'ngoe le e' ngoe ea lisebelisoa tsena ho utloisisa hore na li entsoe joang.Sena se tla etsa hore u hlomelle hamolemo ho etsa qeto e nang le tsebo mabapi le sehlahisoa seo u hlokang ho se reka.Hape, re tla hlalosa phapang pakeng tsa lisebelisoa tsena le kamoo li sebetsang kateng.

Tšepe

Haeba u batla "steel brake disc", u fihlile sebakeng se nepahetseng.Hase feela hore li-disk tsena li sebetsa ka mokhoa o phethahetseng, hape li theko e tlaase haholo.Li-brake discs tsa tšepe li entsoe ka tšepe ea tlhaho, e hanyetsanang le hydrochloric acid.Baqapi ba hona joale ba sebelisitse tšepe ena ho etsa li-brake discs tse nang le boemo bo phahameng ka ho fetisisa bo ka khonehang ba ho tiea le ho hanyetsa abrasion.Li-alloys tse sebelisoang li-brake discs tsa tšepe li thehiloe holim'a carbon, chromium le silicon, e leng se etsang hore e tšoarelle nako e telele.

Motsoako oa li-alloys tse peli o na le litlamorao tse kholo ts'ebetsong ea kakaretso ea li-brake disc.A357/SiC AMMC top layer e eketsa bolelele, ha ts'ebetso ea likhohlano e ntlafatsa likaroloana tsa intermetallic ho fokotsa ho phatloha.Boitsebiso bona bo na le matla a phahameng ka ho fetisisa, a fanang ka boima bo hlokahalang ke 'mele oa brake disc.Leha ho le joalo, ho fapana le tšepe, li-disc tsa hybrid composite li na le khanyetso e ntle ea ho apara.E loketse ka ho fetisisa bakeng sa likopo moo ho hlokahalang ho hanyetsa ho apara ka ho feteletseng.

Li-brake discs tsa tšepe le tsona ha li khone ho bola ho feta li-brake pads.Ho feta moo, li theko e tlaase ho feta mekhoa e meng.U ka boloka chelete e ngata ka ho reka li-brake discs tse ncha.Li-brake discs tsa tšepe li ka tšoarella nako e telele ka libethe tse nepahetseng.Ts'ebetso ena e tla etsa bonnete ba ho palama boreleli holim'a brake mme e tla thibela tšenyo ea mofuta ofe kapa ofe hore e se ke ea etsahala.Empa, ha e na mefokolo ea eona.Ka mohlala, haeba u na le disc e nang le cementite inclusions, ho ka 'na ha se khonehe ho e lokisa hape.

Lintho tse sebelisoang ka li-disk tsa tšepe tsa tšepe li boetse li lokela ho etsoa ka li-ceramics tse khonang ho hanyetsa tšenyo ea mocheso.Ho phaella moo, likaroloana tsa ceramic le tsona li lokela ho ba li-conductors tse ntle tsa mocheso.Sekhahla sa ho fetisoa ha mocheso se etsa qeto ea mocheso o sebetsang oa sebaka sa ho kopana sa disc.Ha u reka disk e ncha ea brake, u ka boela ua fumana waranti bakeng sa eona haeba u batla ho e nkela sebaka.Ho na le mabaka a mangata a hore na ke hobane'ng ha li-discs tsa tšepe e ka ba khetho e ntle.

Motsoako oa Ceramic

Bokamoso ba li-brake discs tsa ceramic bo khanya.Li-disk tsena li na le monyetla oa ho ntlafatsa moruo oa mafura ha ka nako e le 'ngoe li fokotsa libaka tse emisang.Bakeng sa ho nts'etsapele mariki ana, ho hlokahala lenaneo le pharaletseng la tlhahlobo ea 'mila le pina.Nakong ea ts'ebetso ena, mojaro oa mocheso o behiloeng holim'a brake ea disc o lekanngoa ka mekhoa ea 'mele le ea lik'hemik'hale.Liphello tsa tšebeliso ea mocheso o phahameng li ka fetoha kapa tsa se ke tsa fetoloa ho latela mofuta oa brake pad le maemo a ts'ebetso.

Taba e mpe ho li-CMC ke hore hajoale li theko e boima.Leha ho le joalo, ho sa tsotellehe ts'ebetso ea bona e phahameng, ha e sebelisoe hangata likoloing tse rekisoang ka bongata.Leha thepa e tala e sebelisoang e se theko e boima, litšenyehelo li ntse li le holimo, 'me ha li-CMC li ntse li ata, litheko li lokela ho theoha.Sena se bakoa ke hore li-CMC li hlahisa mocheso o fokolang feela, 'me katoloso ea mocheso ea li-brake discs e ka fokolisa thepa.Ho phunyeha ho ka boela ha etsahala ka holim'a metsi, ho etsa hore disk ea brake e se ke ea sebetsa.

Leha ho le joalo, li-discs tsa carbon-ceramic brake li theko e boima haholo.Ho hlahisa li-disc tsena ho ka nka matsatsi a 20.Li-brake discs tsena li bobebe haholo, e leng motsoako oa likoloi tse bobebe.Le hoja li-discs tsa carbon-ceramic brake li ka 'na tsa se ke tsa e-ba khetho e nepahetseng bakeng sa likoloi tsohle, tlhaho e bobebe le e tšoarellang ea thepa e etsa hore e be khetho e ntle bakeng sa likoloi tse sebetsang hantle.Ka kakaretso, theko ea li-discs tsa ceramic composite ke hoo e ka bang halofo ea litšenyehelo tsa li-discs tsa tšepe.

Li-brake disc tsa carbon-carbon brake li theko e boima, 'me tšenyo ke ntho e tšoenyang li-brake discs tsena.Li-discs tsa k'habone tsa ceramic li khona ho hlajoa haholo, 'me bahlahisi ba khothaletsa hore u tlatse li-discs tsena ka thepa e sireletsang.Tse ling tsa lik'hemik'hale tse hlalosang lik'hemik'hale le lik'hemik'hale tse hloekisang mabili a lik'hemik'hale li ka senya li-disc tsa carbon ceramic.Li-discs tsa carbon ceramic le tsona li ka ingoaea 'me tsa etsa hore likaroloana tsa carbon li thehe letlalong la hao.'Me haeba u se hlokolosi, carbon-ceramic disc e ka fella liropeng tsa hao.

Tšepe ea tšepe

Mokhoa oa ho roala zinki li-brake discs tsa tšepe ha o ncha.Nakong ea ts'ebetso ea tlhahiso, disc e hloekisoa ka tšepe e pholileng ea angular grit 'me ho sebelisoa lesela la zinki.Mokhoa ona o tsejoa e le sherardizing.Ts'ebetsong ena, arc ea motlakase e qhibilihisa phofo ea zinki kapa terata ka moqomong ebe e e hlahisa holim'a disc.Ho nka lihora tse ka bang 2 ho hlakola "brake disc".Litekanyo tsa eona li bophara ba lisenthimithara tse 10.6 ka bophara ba 1/2 inch.Li-brake pads li tla sebetsa ka ntle ho 2.65 inch ea disc.

Le hoja li-brake disc tsa tšepe li ntse li sebelisoa ho etsa likoloi tse ling, bahlahisi ba ntse ba batla lisebelisoa tse ling tsa ho etsa lihlahisoa tsena.Mohlala, likarolo tsa brake tse bobebe li ka thusa ho sebetsa hantle haholo le ho fokotsa boima ba koloi.Leha ho le joalo, theko ea tsona e ka bapisoa le mariki a tšepe a tšepe.Motsoako oa lisebelisoa tse ncha ke khetho e ntle haholo ea ho eketsa ts'ebetso ea mafura a koloi le ho ntlafatsa ts'ebetso.Mona ho thathamisitsoe melemo e meng ea li-brake discs tsa aluminium.

Ka tikoloho, 'maraka oa lefats'e oa li-brake discs tsa tšepe o arotsoe ka libaka tse tharo tse kholo: Amerika Leboea, Europe le Asia Pacific.Europe, 'maraka o arotsoe hape ke Fora, Jeremane, Italy, Spain le Europe kaofela.Asia-Pacific, 'maraka oa li-brake discs tsa tšepe o hakanngoa hore o tla hola ho CAGR e fetang 20% ​​ka 2023. Middle East le Afrika li lebelletsoe ho hola ka sekhahla se potlakileng lilemong tse tlang, ka CAGR e ka bang 30%. .Ka indasteri e ntseng e hola ea likoloi, linaha tse ntseng li tsoela pele moruong li ntse li reka likoloi tse mabili a mabeli.

Leha ho na le melemo ea li-discs tsa brake tsa aluminium, li-disc tsa brake tsa tšepe li na le mathata a 'maloa.Aluminium e hloekileng e brittle ebile e na le khanyetso e tlase haholo, empa li-alloys li ka ntlafatsa ts'ebetso ea eona.Li-brake discs tsa aluminium li ka tšoarella lilemo tse ngata, tsa fokotsa boima bo sa tsitsang ka 30% ho isa ho mashome a supileng lekholong.'Me li bobebe, li na le litšenyehelo, ebile li ka sebelisoa hape.Ke khetho e ntle ho feta li-discs tsa tšepe tse entsoeng ka tšepe.

Fiber ea carbon

Ho fapana le li-brake discs tsa setso, tse nang le carbon-carbon li ka mamella mocheso o phahameng haholo.Masela a lohiloeng le a thehiloeng ho fiber a lumella hore e hanele katoloso ea mocheso ha e ntse e le bobebe.Lintho tsena li etsa hore e be e loketseng bakeng sa li-brake discs, tse atisang ho sebelisoa lipapaling tsa mabelo le lifofane.Empa ho boetse ho na le li-downsides.Haeba u batla ho natefeloa ke melemo ea li-brake discs tsa carbon-fiber, u lokela ho tseba hanyane ka ts'ebetso ea bona ea tlhahiso.

Le hoja li-discs tsa carbon brake li na le melemo e mengata tseleng ea peiso, ha li loketse ho khanna letsatsi le leng le le leng.Ha li hanyetsane le mocheso oa litsela 'me mochine oa carbon disc o lahleheloa ke limilimithara tse tharo ho isa ho tse' nè tsa botenya ka lihora tse 24 tsa tšebeliso e tsoelang pele.Li-discs tsa carbon li boetse li hloka liaparo tse khethehileng ho thibela oxidation ea mocheso, e leng se ka fellang ka ho senyeha ha bohlokoa.Hape, li-disk tsa carbon li boetse li na le tag ea theko e phahameng.Haeba u batla "carbon brake disc" e tšoarellang, ea boleng bo holimo, nahana ka e 'ngoe ea tse ntlehali lefatšeng.

Ntle le melemo ea ho boloka boima ba 'mele, li-discs tsa carbon-ceramic brake le tsona li tšoarella nako e telele.Li tla tšoarella nako e telele ho feta li-brake discs tse tloaelehileng 'me li ka tšoarella bophelo ba koloi.Haeba u sa khanne letsatsi le leng le le leng, u tla khona ho sebelisa carbon-ceramic brake disc ka lilemo tse mashome.Ha e le hantle, li-disk tsa carbon ceramic li nkoa li tšoarella ho feta li-disk tsa setso tsa brake, ho sa tsotellehe theko ea tsona e phahameng.

The friction coefficient ea carbon-ceramic brake discs e phahame ho feta ea cast- iron discs, e fokotsa nako ea ho kenya braking ka liperesente tse leshome.Phapang ea maoto a leshome e ka pholosa bophelo ba batho, hammoho le ho thibela tšenyo ea 'mele oa koloi.Ka braking e ikhethang, disc ea carbon-ceramic e bohlokoa bakeng sa ts'ebetso ea koloi.E ke ke ea thusa mokhanni feela, empa hape e tla ntlafatsa polokeho ea koloi.

phenolic resin

Phosphoric resin ke mofuta oa thepa e sebelisoang ho li-brake discs.Mehaho ea eona e ntle ea tlamahano le fiber e etsa hore e be sebaka se setle sa asbestos.Ho itšetlehile ka peresente ea phenolic resin, li-brake discs li ka ba thata le ho hatella haholoanyane.Litšobotsi tsena li ka sebelisoa ho nkela asbestos sebakeng sa li-brake discs.Sesepa sa boleng bo holimo sa phenolic resin brake disc se ka tšoarella bophelo bohle, ho bolelang litšenyehelo tse tlase tsa ho khutlisa.

Ho na le mefuta e 'meli ea resin ea phenolic ka har'a li-brake discs.E 'ngoe ke resin ea thermosetting' me e 'ngoe ke lisebelisoa tse seng polar, tse sa sebetseng.Mefuta ka bobeli ea resin e sebelisoa ho hlahisa li-brake disc le li-pads.Phenolic resin e sebelisoa ho li-brake pads tsa khoebo hobane e bola hoo e ka bang 450 ° C, ha resin ea polyester e bola ka 250-300 ° C.

Chelete le mofuta oa binder li phetha karolo ea bohlokoa ts'ebetsong ea likhohlano tsa phenolic resin brake disc.Phenolic resin ka kakaretso ha e hanyetsane le liphetoho tsa mocheso ho feta lisebelisoa tse ling, empa e ka etsoa hore e tsitse ka li-additives tse itseng.Ka mohlala, resin ea phenolic e ka fetoloa ka metsi a khetla ea cashew nut ho ntlafatsa ho thatafala ha eona le coefficient ea khohlano ho 100 °.Ha peresente e phahameng ea CNSL, e fokotsa khokahanyo ea khokahanyo.Leha ho le joalo, botsitso ba mocheso oa resin bo ile ba eketseha, 'me litekanyetso tsa ho fela le ho hlaphoheloa li fokotsehile.

Ho roala ha pele ho etsa hore likaroloana li tsoe ho resin ebe li theha sehlaba sa mantlha.Sehlabeng sena sa mantlha ke mofuta o atileng ka ho fetesisa oa lintho tse hohlang.Ena ke ts'ebetso e matla, moo likhoele tsa tšepe le likaroloana tse thata tsa koporo kapa tsa koporo li kopanang le disc.Likaroloana tsena li na le boleng ba boima bo fetang boima ba disc.Sehlabeng se boetse se na le tšekamelo ea ho bokella likaroloana tsa liaparo tsa micrometric le submicrometric.