Composite brake pads
Nrog rau qhov tshwm sim ntawm cov kis tau tus mob, cov nres nres kuj tau los ua. Nws tuaj yeem hais tias qhov twg muaj kev sib kis, muaj kev sib txhuam qhov system raws li kev lees paub.
Puas yog cov brakes puas sib xyaw? Nws yog undeniable, vim hais tias cov mis nyuj feem ntau muaj fibers thiab kev ua tau zoo regulators, thiab ces cov resin yog siv los ua ib tug binder, thiab nws yog tsim tom qab kub nias, uas yog ib tug heev raug cov khoom xyaw.
Yog li yuav ua li cas thiaj tsim tau cov brakes?
Pib los ntawm cov khoom siv ntawm cov pawm nres, nws tuaj yeem muab faib ua asbestos thiab non-asbestos. Txawm li cas los xij, txij li asbestos yog cov carcinogen muaj zog, txij li nruab nrab -1970s mus rau nruab nrab-1980s, txhua lub teb chaws tau pib siv cov qauv uas tsis yog asbestos.
Tam sim no, cov mis tsis muaj asbestos feem ntau muab faib ua peb hom: semi-hlau, tsawg hlau thiab hlau-dawb (NAO). Rau lub tshuab nres tsheb, qhov uas cov neeg siv xav tau yog kev hnav zoo, qhov kub thiab txias ua haujlwm tom qab kev sib txhuam ntawm cov cua sov, thiab tam sim no ntau dua thiab ntau dua rau cov teeb meem suab nrov. Raws li tib neeg them nyiaj ntau dua rau cov teeb meem suab nrov, ntau lub tuam txhab thiab cov chaw tshawb fawb tam sim no tau siv zog tsim NAO formulations, vam tias qhov kev ua tau zoo hauv thaj chaw kub siab kuj tseem yuav tswj tau qib qub.
Cov qauv hlau-tsawg (NAO) dissipates tshav kub sai thiab muaj kev sib txhuam coefficient siab, tab sis nws yog suab nrov thiab ua rau muaj kev puas tsuaj loj rau disk; Cov mis tsis muaj hlau muaj ntau cov khoom siv organic, tab sis nws yooj yim rau carbonize nyob rau hauv qhov kub thiab txias, thiab nws cov kev ua tau zoo txo qis raws li. Nyob rau hauv cov mis peb tus kheej tsim lub sij hawm no, cov resin siv phenolic resin, uas muaj zoo dua kub kuj. Lwm cov khoom xyaw thiab lawv cov teebmeem sib raug yog raws li hauv qab no:
Txhawb fiber ntau: carbon fiber, aramid fiber (organic 6 feem pua<10%), steel fiber (inorganic), composite fiber (6% is noisy, should not be too high)
Sib tsoo tus neeg sawv cev: kev sib txhuam cov khoom, zirconia (oxide, kim dua, tab sis tsis muaj suab nrov tshaj alumina), magnesia, potassium hexatitanate whisker
Lubricant: tooj liab sulfide, dag graphite (kom txo kev puas tsuaj rau lub disc)
Lwm yam regulators: nitrile hmoov, 2-8 tooj dag hmoov, barium sulfate, calcium carbonate (kho pH)
Hauv cov txheej txheem tsim khoom tiag tiag, engineers yuav hloov qhov kev faib ua feem thiab hom raw khoom hauv cov qauv raws li tus neeg siv khoom xav tau rau kev sib txhuam coefficient thiab suab nrov, thiab lwm yam, thiab tom qab ntawd ua cov qauv me me rau kev sim, tom qab ntawd ua kev txhim kho, sim, thiab thaum kawg. tsim thiab muag.
