Paʻa kaʻaʻO ia nā mea friction i hoʻopaʻa ʻia ma ka pahu pahu a i ʻole ka disc e kaʻa ana me ka huila, kahi i hoʻokau ʻia ai ka lining friction a me ka friction lining block i ke kaomi o waho e hana i ka friction e hoʻokō i ke kumu o ka deceleration kaʻa.
ʻO ka poloka friction ka mea kuʻi i hoʻokuʻu ʻia e ka piston clamp a ʻomi ʻia ma kadisc brake, ma muli o ka hopena friction, e ʻaʻahu mālie ʻia ka poloka friction, ma ka ʻōlelo maʻamau, ʻoi aku ka haʻahaʻa o ke kumu kūʻai o nā pale pale e ʻoi aku ka wikiwiki.Hoʻokaʻawale ʻia ka poloka friction i ʻelua ʻāpana: ka mea friction a me ka papa kumu.Ma hope o ka pau ʻana o ka mea friction, e pili pono ana ka pā kumu me ka disc brake, a laila e nalowale ka hopena braking a hōʻino i ka disc brake, a he pipiʻi loa ke kumukūʻai hoʻoponopono o ka disc brake.
Ma ka laulā, ʻo nā koi kumu no nā pad brake ka nui o ka pale ʻana, ka nui o ka friction, a me nā waiwai insulation thermal maikaʻi loa.
E like me nā ʻano brake ʻokoʻa hiki ke hoʻokaʻawale ʻia nā pad brake i: nā pahu pahu pahu a me nā ʻāpana disc brake, e like me nā mea ʻokoʻa hiki ke hoʻokaʻawale ʻia nā pad brake i ke ʻano asbestos, semi-metallic type, NAO type (ie non-asbestos organic material. ʻano) pad brake a me ʻekolu ʻē aʻe.
Me ka hoʻomohala wikiwiki ʻana o ka ʻenehana hou, e like me nā ʻāpana ʻōnaehana brake ʻē aʻe, ua ulu a hoʻololi ʻia nā pale pale i nā makahiki i hala.
I ke kaʻina hana kuʻuna, ʻo ka mea friction i hoʻohana ʻia i nā pad brake he hui ʻana o nā mea hoʻopili a i ʻole nā mea hoʻohui, kahi i hoʻohui ʻia ai nā fibers e hoʻomaikaʻi i ko lākou ikaika a hana i mea hoʻoikaika.Hoʻopaʻa mau ka waha i ka wā e hoʻolaha ai nā mea hana i hoʻohana ʻia, ʻoi aku ka nui o nā mea hana hou.ʻO ka hopena hope loa o ka brake pad braking, ka pale ʻana i ka ʻaʻahu, ke kūpaʻa wela a me nā waiwai ʻē aʻe e hilinaʻi ʻia ma nā ʻāpana pili o nā ʻāpana like ʻole.He kūkākūkā pōkole kēia o nā mea ʻokoʻa ʻē aʻe.
ʻO nā pahu hoʻopaʻa ʻano asbestos
Ua hoʻohana ʻia ʻo Asbestos ma ke ʻano he mea hoʻoikaika no nā pad brake mai ka hoʻomaka.Loaʻa ka ikaika kiʻekiʻe a me ke kūpaʻa wela kiʻekiʻe o nā fibers asbestos, no laila hiki iā lākou ke hoʻokō i nā koi o nā pad brake a me nā disc clutch a me nā linings.He kiʻekiʻe ka ikaika tensile o nā fiber, e like me ke kila kiʻekiʻe, a hiki ke pale i nā mahana a hiki i 316 ° C.ʻO ka mea nui aku, ʻoi aku ka maʻalahi o ka asbestos a lawe ʻia mai ka amphibole ore, i loaʻa i nā mea nui ma nā ʻāina he nui.
Ua hōʻoia ʻia ʻo Asbestos i ka lāʻau lapaʻau he mea carcinogenic.Hiki ke komo maʻalahi kona mau pulu e like me ka nila i loko o ka māmā a noho i laila, e hoʻonāukiuki ai a hiki i ka maʻi maʻi ʻāʻī, akā ʻo ka manawa huna o kēia maʻi hiki ke lōʻihi i 15-30 mau makahiki, no laila ʻaʻole ʻike pinepine ka poʻe i ka pōʻino i hana ʻia e. asbestos.
ʻOiai ka lōʻihi o ka hoʻopaʻa ʻia ʻana o nā fiber asbestos e ka mea friction ponoʻī ʻaʻole ia e hoʻopilikia i ke olakino i nā limahana, akā i ka wā e hoʻokuʻu ʻia ai nā fiber asbestos me ka friction brake e hana i ka lepo ʻōpala, hiki ke lilo i mau hopena olakino.
Wahi a nā hoʻokolohua i alakaʻi ʻia e ka American Occupational Safety and Health Association (OSHA), i kēlā me kēia manawa e hana ʻia kahi hoʻāʻo ʻana i ka friction maʻamau, e hoʻopuka nā pale pale i nā miliona o ka asbestos fibers i hoʻokuʻu ʻia i ka lewa, a ʻoi aku ka liʻiliʻi o ka lauoho ma mua o ka lauoho kanaka. ʻAʻole hiki ke ʻike ʻia e ka maka ʻōlohelohe, no laila hiki i ka hanu ke komo i nā tausani o ka asbestos fiber me ka ʻike ʻole o ka poʻe.Pela no hoi, ina o ka pahu pahu a i ole ia na wahi wawahi i ka lepo wawahi i puhiia me ka ea hose, hiki no hoi ke helu i na asbestos fibers i ka lewa, a me keia lepo, aole wale e hoopilikia i ke ola o ka mechanic hana, pela no hoi ke kumu. pōʻino ola kino i nā limahana ʻē aʻe e noho ana.ʻO kekahi mau hana maʻalahi loa e like me ke kuʻi ʻana i ka pahu pahu me ka hāmare e wehe ai a hoʻokuʻu i ka lepo ʻōpala o loko, hiki ke hoʻohua i nā fila asbestos e lana ana i ka lewa.ʻO ka mea ʻoi aku ka hopohopo, ʻo ka wā e lana ana nā ʻili i ka lewa, e mau ana lākou no nā hola a laila e paʻa lākou i nā lole, nā papaʻaina, nā mea hana, a me nā ʻāpana ʻē aʻe āu e noʻonoʻo ai.I kēlā me kēia manawa a lākou e hālāwai ai me ka hoʻoulu ʻana (e like me ka hoʻomaʻemaʻe, ka hele wāwae, ka hoʻohana ʻana i nā mea hana pneumatic e hoʻoheheʻe i ka ea), e lana hou lākou i ka lewa.ʻO ka manawa pinepine, i ka manawa e komo ai kēia mea i ka ʻoihana hana, e noho ia ma laila no nā mahina a i ʻole mau makahiki, e hoʻopilikia ai i nā hopena olakino i ka poʻe e hana ana ma laila a i nā mea kūʻai aku.
Ua ʻōlelo pū ka American Occupational Safety and Health Association (OSHA) he palekana wale nō i ka poʻe ke hana ma kahi kaiapuni ʻaʻole i ʻoi aku ma mua o 0.2 asbestos fibers i kēlā me kēia mika square, a ʻo ka lepo asbestos mai ka hana hoʻoponopono maʻamau e hoʻemi ʻia a hana. hiki ke hoʻokuʻu ʻia ka lepo (e like me ka paʻi ʻana i nā pale pale, a me nā mea ʻē aʻe) e pale ʻia e like me ka hiki.
Akā, ma waho aʻe o ka ʻaoʻao pōʻino olakino, aia kekahi pilikia koʻikoʻi ʻē aʻe me nā pale pahu asbestos.No ka mea he adiabatic ka asbestos, ʻilihune loa kona conductivity wela, a ʻo ka hoʻohana pinepine ʻana i ka pahu ka mea e ulu ai ka wela ma ka pā pahu.Inā piʻi ka pahu kaʻa i kahi pae wela, e hāʻule nā pahu.
I ka wā i hoʻoholo ai nā mea hana kaʻa a me nā mea hoʻolako mea hoʻoheheʻe e hoʻomohala i nā mea hou a palekana i ka asbestos, ua hana ʻia nā mea friction hou i ka manawa like.ʻO kēia nā hui "semi-metallic" a me nā pale pale non-asbestos organic (NAO) i kūkākūkā ʻia ma lalo nei.
"Semi-metallic" hybrid brake pads
"Semi-met" hui pū ʻia i hana ʻia me ka hulu kila kila ma ke ʻano he fiber hoʻoikaika a me kahi hui nui.Mai ka hiʻohiʻona (nā pulu maikaʻi a me nā ʻāpana) he maʻalahi ke hoʻokaʻawale i ke ʻano asbestos mai ka non-asbestos organic type (NAO) pad brake pads, a he magnetic nō hoʻi lākou.
ʻO ka ikaika kiʻekiʻe a me ka hoʻoili wela o ka hulu kila e hana i nā pad brake "semi-metallic" i hui ʻia i nā ʻano braking ʻokoʻa ma mua o nā pad asbestos kuʻuna.Hoʻololi pū ka ʻiʻo metala kiʻekiʻe i nā hiʻohiʻona friction o ka pad brake, ʻo ia hoʻi, ʻo ka "semi-metallic" brake pad e koi i ke kaomi braking kiʻekiʻe e loaʻa ai ka hopena braking like.ʻO ka maʻiʻo metala kiʻekiʻe, ʻoi aku hoʻi i nā mahana anuanu, ʻo ia hoʻi, e hoʻonui ʻia ka ʻili o nā pad ma nā disc a i ʻole nā pahu, a me ka hoʻonui ʻana i ka walaʻau.
ʻO ka pōmaikaʻi nui o nā pads "Semi-metal" ʻo ko lākou hiki ke hoʻomalu i ka wela a me ka mahana braking kiʻekiʻe, ke hoʻohālikelike ʻia me ka maikaʻi ʻole o ka hoʻololi ʻana i ka wela o ke ʻano asbestos a me ka hiki ke hoʻomaha maikaʻi ʻole o nā disc brake a me nā pahu.Hoʻololiʻia ka wela i ka caliper a me kona mau mea.ʻOiaʻiʻo, inā ʻaʻole mālama pono ʻia kēia wela e hiki nō ke hoʻopilikia.E piʻi aʻe ka mahana o ka wai ʻūhā i ka wā e wela ai, a inā e piʻi ka mahana i kahi pae e emi ai ka pahu a me ka paila ʻana o ka wai.He hopena hoʻi kēia wela i ka caliper, piston seal a me ka puna hoʻihoʻi, e wikiwiki i ka ʻelemakule o kēia mau mea, ʻo ia ke kumu o ka hoʻohui hou ʻana i ka caliper a hoʻololi i nā ʻāpana metala i ka wā o ka hoʻoponopono ʻana.
ʻAʻole asbestos organic braking materials (NAO)
Hoʻohana nui ʻia nā mea hoʻoheheʻe organik non-asbestos i ka fiber aniani, polycool fiber aromatic a i ʻole nā fibers ʻē aʻe (carbon, ceramic, etc.) ma ke ʻano he mea hoʻoikaika, nona ka hana e hilinaʻi nui ʻia i ke ʻano o ka fiber a me nā mea hoʻohui ʻē aʻe.
Ua hoʻomohala nui ʻia nā mea hoʻoheheʻe organik non-asbestos ma ke ʻano he ʻokoʻa i nā kristal asbestos no nā pahu pahu a i ʻole nā kamaʻa haki, akā i kēia manawa ke hoʻāʻo ʻia nei lākou ma ke ʻano he pani no nā pad brake disc mua.Ma ke ʻano o ka hana, ʻoi aku ka kokoke o nā pad brake type NAO i nā pad brake asbestos ma mua o nā pad brake semi-metallic.ʻAʻole like ka conductivity thermal maikaʻi a me ka mālama ʻana i ka wela kiʻekiʻe e like me nā pad semi-metallic.
Pehea ka hoʻohālikelike ʻana o ka mea maka NAO hou me nā pale pale asbestos?He ʻelima a ʻehiku mau huila kumu asbestos maʻamau, ʻo ia hoʻi nā fibers asbestos no ka hoʻoikaika ʻana, nā ʻano mea hoʻohui like ʻole, a me nā mea paʻa e like me ka aila linseed, resins, benzene sound awakening, a me nā resins.I ka hoʻohālikelike ʻana, loaʻa i nā mea friction NAO ma kahi o ʻumikūmāhiku mau pūhui lāʻau like ʻole, no ka mea, ʻaʻole like ka wehe ʻana i ka asbestos me ka hoʻololi wale ʻana iā ia me kahi mea pani, akā pono i kahi hui nui e hōʻoia i ka hana braking e like a ʻoi aku paha i ka pono braking o nā poloka friction asbestos.
Ka manawa hoʻouna: Mar-23-2022