Brake padsndiyo friction material yakagadziriswa padhiramu rebhureki kana dhisiki rinotenderera nevhiri, umo friction lining uye friction lining block inoiswa pasi pekumanikidzwa kwekunze kuti ibudise friction kuzadzisa chinangwa chekudzikisa mota.
Iyo friction block ndiyo friction material inosundwa neclamp piston yosvinwa pabhureki disc, nekuda kweiyo friction mhedzisiro, iyo friction block ichapfekwa zvishoma nezvishoma, kazhinji kutaura, iyo yakaderera mutengo wemabhureki mapedhi anopfeka nekukurumidza.Iyo friction block yakakamurwa kuita zvikamu zviviri: friction material uye base plate.Mushure mekunge zvinhu zvekukwenya zvasakara, ndiro yepasi ichave yakanangana neiyo brake disc, iyo inozopedzisira yarasikirwa neiyo braking athari uye kukuvadza dhisiki yebhureki, uye mutengo wekugadzirisa webhureki disc unodhura zvakanyanya.
Kazhinji, izvo zvinodikanwa zvemabhureki pads zvinonyanya kupfeka kuramba, hombe coefficient yekukwesha, uye yakanakisa thermal insulation zvimiro.
Zvinoenderana neakasiyana mabhureki mabhureki mapedhi anogona kukamurwa kuita: dhiramu brake pads uye disc brake pads, zvinoenderana neakasiyana mabhureki mabhureki anogona kazhinji kukamurwa kuita asbestos mhando, semi-metallic mhando, NAO mhando (kureva isiri-asbestos organic zvinhu. type) brake pads uye mamwe matatu.
Nekukurumidza kuvandudza tekinoroji yemazuva ano, sezvimwe zvikamu zvemabhureki system, mabhureki pads pachawo anga achichinja uye achichinja mumakore achangopfuura.
Muchinyakare chekugadzira maitiro, iyo friction material inoshandiswa mumabhureki pads musanganiswa weakasiyana anonamira kana additives, ayo mafibhi anowedzerwa kunatsiridza simba ravo uye kuita sekusimbisa.Vagadziri veBrake pad vanowanzochengeta miromo yavo yakavharika kana zvasvika pakuziviswa kwezvinhu zvinoshandiswa, kunyanya kuumbwa kutsva.Mhedzisiro yekupedzisira yebrake pad braking, kupfeka kuramba, tembiricha kuramba uye zvimwe zvivakwa zvinoenderana nehukama hwezvikamu zvakasiyana.Iyi inotevera hurukuro pfupi yezvakasiyana zvakasiyana-siyana zvemabhureki pad.
Asbestos type brake pads
Asbestos yakashandiswa sechinhu chekusimbisa mabhureki pads kubva pakutanga.Asbestos fibers ine simba rakakura uye yakakwirira tembiricha kuramba, saka vanogona kusangana nezvinodiwa zvebrake pads uye clutch discs uye linings.Mafiibha ane simba rakanyanya kusimba, achitoenderana nesimbi yegiredhi repamusoro, uye anogona kushingirira tembiricha inosvika 316°C.Zvinonyanya kukosha, asbestos inenge isingadhuri uye inotorwa kubva kune amphibole ore, iyo inowanikwa muhuwandu hwakawanda munyika dzakawanda.
Asbestos yakaratidzirwa nemishonga kuti igomarara.Fiber dzayo dzakaita setsono dzinogona kupinda mumapapu nyore nyore uye dzogara imomo, zvichikonzera kushatirwa uye pakupedzisira zvichitungamira kukenza yemapapu, asi nguva yakadzika yechirwere ichi inogona kureba semakore 15-30, saka vanhu kazhinji havazive kukuvadza kunokonzerwa asbestos.
Chero bedzi asbestos fibers yakagadziriswa neiyo friction material pachayo haizokonzeri njodzi dzehutano kuvashandi, asi apo asbestos fibers inosunungurwa pamwe chete nebrake friction kuti iite guruva rakaputika, inogona kuva mutsara wehutano hwehutano.
Zvinoenderana nemiedzo yakaitwa neAmerican Occupational Safety and Health Association (OSHA), pese panoitwa bvunzo yekukweshana, mabhureki pads anoburitsa mamirioni emafibers easbestos anoburitswa mumhepo, uye shinda idiki zvakanyanya kupfuura bvudzi remunhu. iyo isingaonekwe nemaziso, saka mweya unogona kutora zviuru zveasbestos fiber pasina vanhu vanozviziva.Saizvozvo, kana bhureki dhiramu kana zvidimbu zvebhureki muguruva rebhureki rakapeperetswa nepoipi yemhepo, inogona zvakare kuve isingaverengeke mafibisi easbestos mumhepo, uye guruva iri, kwete chete richakanganisa hutano hwebasa makanika, zvakafanana zvinokonzeresa. kukuvara kwehutano kune chero vamwe vashandi varipo.Kunyangwe mamwe mavhiya akareruka akadai sekurova dhiramu remabhureki nesando kuti asunungure uye kurega guruva remukati rebhureki richibuda, rinogonawo kuburitsa akawanda easbestos fiber anoyangarara mumhepo.Chinotonyanya kunetsa ndechekuti kana mafibhi achinge achiyangarara mumhepo anogara kwemaawa uye anobva anamatira kune zvipfeko, matafura, maturusi, uye chero imwe nzvimbo yaungafunga nezvayo.Chero nguva yavanosangana nayo inokurudzira (sekuchenesa, kufamba, kushandisa maturusi epneumatic kugadzira kuyerera kwemhepo), ivo vanoyangarara vachidzokera mumhepo zvakare.Kazhinji, kana chinhu ichi chapinda munzvimbo yebasa, chicharamba chiripo kwemwedzi kana makore, zvichikonzera hutano hunogona kuitika kune vanhu vanoshanda ipapo uye kunyange kune vatengi.
IAmerican Occupational Safety and Health Association (OSHA) inotaurawo kuti zvakachengeteka chete kuti vanhu vashande munzvimbo isingapfuuri 0.2 asbestos fibers pa square mita, uye kuti guruva reasbestos rinobva kumabasa ekugadzirisa mabhureki rinofanira kuderedzwa uye kushanda. izvo zvinogona kukonzera kuburitswa kweguruva (zvakadai sekutapa mabhureki pads, nezvimwewo) zvinofanirwa kudziviswa zvakanyanya sezvinobvira.
Asi pamusoro pehutano hwehutano, kune rimwe dambudziko rakakosha neasbestos-based brake pads.Sezvo asbestos iri adiabatic, kupisa kwayo kunonyanya kushata, uye kushandiswa kudzokororwa kwebhureki kazhinji kunokonzeresa kupisa mukati mebrake pad.Kana mabhureki mapedhi akasvika kune imwe nhanho yekupisa, mabhureki anotadza.
Kana vagadziri vemotokari uye vatengesi vezvinhu zvemabhureki vakafunga kugadzira nzira nyowani uye dzakachengeteka dzeasbestos, zvinhu zvitsva zvekukwenya zvakagadzirwa panguva imwe chete.Aya ndiwo ma "semi-metallic" musanganiswa uye asiri-asbestos organic (NAO) brake pads anokurukurwa pazasi.
"Semi-metallic" hybrid brake pads
"Semi-met" musanganiswa mabhureki mapedhi anonyanya kugadzirwa nesimbi yakaoma seshinda inosimbisa uye yakakosha musanganiswa.Kubva pakuonekwa (mafibhi akanaka uye zvimedu) zviri nyore kusiyanisa rudzi rweasbestos kubva kune asiri-asbestos organic type (NAO) brake pads, uye iwo zvakare ane magineti mune zvakasikwa.
Kusimba kwepamusoro uye kupisa kwekupisa kwemvere dzesimbi kunoita kuti "semi-metallic" yakasanganiswa mabhureki mapedhi ave akasiyana mabhureki maitiro pane echinyakare asbestos pads.Iyo yakakwira simbi yemukati inoshandurawo friction maitiro ebhureki pad, izvo zvinowanzoreva kuti "semi-metallic" brake pad inoda yakakwirira braking pressure kuti iwane yakafanana braking maitiro.Yakakwira simbi yemukati, kunyanya mukutonhora kwekutonhora, zvinoreva zvakare kuti mapads anokonzeresa kupfeka kwepamusoro pamadhisiki kana zvigubhu, pamwe nekugadzira ruzha.
Mukana mukuru we "Semi-metal" mabhureki pads kugona kwavo tembiricha yekudzora uye yakakwirira braking tembiricha, zvichienzaniswa nekushata kupisa kwemhando yeasbestos uye kutadza kutonhora kwekugona kwebrake discs nemadhiramu.Kupisa kunotamirwa kune caliper uye zvikamu zvayo.Hongu, kana kupisa uku kukasabatwa zvakanaka kunogona kukonzera matambudziko.Tembiricha yebrake fluid inokwira kana yapisa, uye kana tembiricha ikasvika pane imwe nhanho inoita kuti bhureki ridzikire uye brake fluid kufashaira.Kupisa uku kunewo mhedzisiro pane caliper, piston chisimbiso uye chitubu chekudzoka, izvo zvinomhanyisa kuchembera kwezvikamu izvi, ndicho chikonzero chekubatanidza zvakare caliper uye kutsiva simbi dzesimbi panguva yekugadzirisa mabhureki.
Zvisiri-asbestos organic braking zvinhu (NAO)
Zvisiri-asbestos organic brake zvinhu zvinonyanya kushandisa girazi faibha, anonhuwirira polycool faibha kana mamwe faibha (kabhoni, ceramic, nezvimwewo) sezvinhu zvekusimbisa, izvo kuita kunoenderana zvakanyanya nerudzi rwefiber uye mamwe masanganiswa akawedzerwa.
Zvisiri-asbestos organic brake materials zvakanyanya kugadzirwa seimwe nzira yeasbestos crystals yemabhureki madhiramu kana mabhureki bhutsu, asi munguva pfupi yapfuura vari kuyedzawo sechinotsiva emberi disc brake pads.Panyaya yekushanda, NAO type brake pads iri padyo neasbestos brake pads pane semi-metallic brake pads.Iyo haina yakafanana yakanaka yekupisa conductivity uye yakanaka yakakwirira tembiricha controllability semi-metallic pads.
Iyo itsva NAO raw material inofananidzwa sei neasbestos brake pads?Yakajairika asbestos-yakavakirwa friction zvinhu zvine zvishanu kusvika zvinomwe zvigadziko zvakasanganiswa, izvo zvinosanganisira asbestos fiber yekusimbisa, akasiyana ekuwedzera zvinhu, uye mabhainda akadai semafuta e-linseed, resin, benzene sound awakening, uye resins.Mukuenzanisa, NAO friction materials ine zvimiti zvinenge gumi nenomwe zvakasiyana, nokuti kubvisa asbestosi hakuna kufanana nekungoitsiva neinotsiva, asi kunoda musanganiswa wakakura kuti uve nechokwadi chekushanda kwemabhureki anoenzana kana kudarika kushanda kwebhureki kweasbestos friction blocks.
Nguva yekutumira: Mar-23-2022