ʻO ka mīkini hana hydraulic transmission system i nā mea nui e like me ka gearbox torque converter (i kapa ʻia ʻo ka hoʻololi pālua) a me ka ʻōnaehana hydraulic unit hana i ka pahu hoʻohuli multi-way me ka O-ring a me nā sila ʻē aʻe, ʻo ka hapa nui o lākou i hoʻohana ʻia i ka fluorine rubber (FKM) no ka hoʻopaʻa ʻana i ka mea i ke kūpaʻa aila maikaʻi, ke kūpaʻa abrasion a me ke kūpaʻa ʻana i nā mahana kiʻekiʻe a me ka hoʻomaikaʻi ʻana i ke ʻano o ka ʻōnaehana. Eia nō naʻe, ma muli o ke ʻano o ia mau sila, ke kumu kūʻai kiʻekiʻe, ke kūʻē maikaʻi ʻole i ka rancidity deterioration o ka aila, ke kū anuanu a me nā kumu maikaʻi ʻole ʻē aʻe, e hoʻonui ai ke kumukūʻai o ka huahana, a pili i ke kūʻai ʻana o ka huahana, no laila pono e ʻimi i kahi mea hoʻopaʻa paʻa a paʻa ma mua o ka mea hoʻopaʻa.
HNBR a me kona mau waiwai
ʻO HNBR kahi ʻano hou o ka elastomer pale ʻaila i hoʻokomo ʻia e Nippon Zeon i ka makahiki 1984, i kūkulu ʻia no ka hoʻokō ʻana i ka pono koʻikoʻi no nā mea paʻa i lalo o nā kūlana koʻikoʻi o ka ʻoihana kaʻa. ʻO ia ke kūpaʻa ʻaila maikaʻi loa o ka nitrile rubber (code name NBR) molecular structure o ka carbon-carbon double bond selectively hydrogenated (saturated) processing of the molecular structure of the change, hoʻololi i ka NBR heat-resistant, maroon chemical stability o ka nāwaliwali o ka poʻe ʻilihune, me ka ikaika maikaʻi a me ke kū'ē i ke kiʻekiʻe a me ka haʻahaʻa haʻahaʻa, ke kū'ē i ka ʻaila a me ka media kemika e like me ke kūpaʻa kūʻokoʻa. Ma ka manawa like e mālama ai i ka pale lole maikaʻi loa a me ke kaʻina hana o NBR. Hoʻohālikelike ʻia me FKM a me NBR
ʻO nā hiʻohiʻona hana nui o HNBR penei:
(1) Hiki ke hoʻololi i ka mahana: hiki ke hoʻohana ʻia ka HNBR no ka manawa lōʻihi ma l50 ℃ , hoʻohana pōkole i ka mahana a hiki i l75 ℃.
HNBR, hiki ke hoʻohana no ka manawa lōʻihi ma 230 ℃ , ka hoʻohana pōkole o ka mahana a hiki i 300 ℃ . HNBR pale wela ma waena o NBR a me FKM, akā ma ke ʻano o ka haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, ʻilihune ke kū anuanu o FKM (-15 ℃ hiki ke maʻalahi i ka haki ʻana); a me ka HNBR he hana haʻahaʻa haʻahaʻa maikaʻi loa, me ke kaulike maikaʻi ma waena o ka pale ʻana i ka aila
(2) Ke kino a me ka mechanical waiwai: ka hapa nui o ka aila-kū pale ma muli o ka haʻahaʻa tensile ikaika, no laila e kaupalena 'ia ka laulā o kona noi, e like me ka FKM tensile ikaika o 19.6-21.6MPa, HNBR ikaika ma mua o NBR, ACMXNBR, EPDM a me FKM a me nā 'ano o ka lāʻau 'ē aʻe, e like me Zeon ZSCB nitrile ikaika a hiki i ka hydrogen nitrile butadiene up. nā wela kiʻekiʻe (ʻOi aku ka mea nui, HNBR ma ke kiʻekiʻe wela (15O ℃ ) ma lalo o ka ikaika (14.7-29.4MPa) a me ka lumi wela NBR e mālama i ka pae like i nā wela kiʻekiʻe i nā ʻano ʻaila paʻakikī a me nā mea hoʻonaninani kemika hiki ke mālama i nā waiwai mechanical maikaʻi loa, ʻoi aku ka maikaʻi o ke kino kino a me nā waiwai mechanical ma mua o ka hapa nui o nā kino elastic ah, maikaʻi ke kūpaʻa abrasion.
ʻO ka hui pū ʻana o ka ʻenehana, hiki iā ʻoe ke loaʻa ka maikaʻi kiʻekiʻe kiʻekiʻe-mehana hoʻopiʻi mau deformation hana, a ʻaʻole maikaʻi kēia hana o FKM.
(3) ka hoʻopaʻapaʻa kemika: HNBR maikaʻi loa ka aila kū'ē i nā wela kiʻekiʻe, kū'ē i nā ʻano lubricants hydraulic aila, wahie aila i loaʻa nā ʻano mea hoʻohui, ikaika corrosive oxidizing aila a me ka hana metala slag, a maikaʻi loa ke kūpaʻa ozone, kiʻekiʻe-mahana pale pale a me ka wai wela.
Mai nā hiʻohiʻona i luna o ka HNBR, i hoʻohālikelike ʻia me FKM, ʻoi aku ka maikaʻi o ka hana holoʻokoʻa mua, FKM, ʻoiai ʻo ka pale ʻana i ka wela, ke kūpaʻa aila, ʻoi aku ka maikaʻi o ke kūʻē ʻana i ka ʻaila combustion ma mua o HNBR, akā ʻo HNBR i ka mahana hana o nā ʻano mechanical o ke kūpaʻa mahu, kūʻē i nā mea hoʻohui aila, kū i ka oxidation a me ka rancidity degradation o ka aila a me nā waiwai ʻē aʻe, e like me ka ʻoi aku o ka FKM. Eia kekahi, ʻo ka FKM i ka hana ʻana a me ka hoʻoheheʻe ʻana ma muli o ka maikaʻi ʻole o ka wai o ka mea, nā mea maka a me ka hana huahana ʻaʻole paʻa, no laila kona kumukūʻai. Eia kekahi, ʻoi aku ka nui o ka FKM ma ke kaʻina hana o ka hana ʻana a me ka hoʻoheheʻe ʻana ma muli o ke kahe ʻana o ka waiwai, ka paʻa ʻole o nā mea maka a me ka hana huahana, ʻoiai ʻoi aku ka maikaʻi o ka HNBR ma mua o FKM ma muli o ka hoʻoheheʻe ʻana a me ka hana ʻana, ka hana paʻa a me ke kumu kūʻai haʻahaʻa.
Ke kūlana noi o HNBR a me ka nānā ʻana o kāna noi i nā mīkini hana
Ma muli o ka maikaʻi loa o ka HNBR, ua hoʻohana nui ʻia i nā ʻano he nui e hoʻololi i ka FKM ma nā ʻāina ʻē: ua hoʻohana ʻia ia i ka ʻoihana kaʻa e hana i ka crankshaft kaʻa i mua a i hope a me nā sila aila pahu pahu, H-type shaft sila, sila no ka wahie injection system, piston cylinder vibration damping seals, carburetor O-rings, etc. a i loko o ka oihana metallurgical, ua hoʻohana 'ia i ka hana 'ana i ka metallurgy kiʻekiʻe-laina wili wili axle anawaena papalua-ʻaoʻao sila, a me na sila no ka fan-like cylinders i loko o ka home hoomau hoolei mīkini; a ma ka ʻoihana ʻaila, hoʻohana ʻia ia i ka hana ʻana i nā wili wili, a me nā sila no ka wili ʻana. I ka ʻoihana ʻaila, hoʻohana ʻia lākou e hana i ka sila o ka drill bit protector no ka hoʻoheheʻe ʻana i ke poʻo maikaʻi, ka hoʻopaʻa ʻana i ka paila ʻaila, a pēlā aku.
No nā mea hoʻouka a me nā mīkini hana ʻē aʻe, ʻo kāna mau mea hoʻoili hydraulic e like me nā pahu pahu, torque converter i loko o ka mahana hana maʻamau maʻamau 8O-90 ℃ , ʻaʻole ʻoi aku ka kiʻekiʻe ma mua o 120 ℃ , akā e like me nā hola lōʻihi o ka hana overloaded. A i ʻole a ʻoi aku paha ma mua o 130 ℃ pōʻai kūloko o ka hoʻohaʻahaʻa ʻana o ka wai wela a me ka hoʻohaʻahaʻa ʻana i ka manawa, ʻoiai nā ʻāpana o ka slag (ka neʻe ʻana o nā mea metala a me ka manawa o ke kaʻina hana o nā ʻāpana metala e hāʻule ana i ka mea hana) i ka aila wela wela i alakaʻi ʻia e nā sila ma muli o ka hopena o nā sila.
No laila, hiki ke hoʻohana ʻia ka HNBR i ka ikaika wela kiʻekiʻe, ke kūpaʻa haʻahaʻa haʻahaʻa, ka hoʻohaʻahaʻa mau ʻana o ka wela wela, ka hoʻoheheʻe ʻana a me ka hoʻohaʻahaʻa ʻana i ka waika o ka aila a me ka hana sludge metala a me nā mea ʻē aʻe o ke kumu kūʻai o nā pono i hōʻike ʻia, me kona hoʻololi ʻana i ka sila FKM o kēia manawa, e hoʻomaikaʻi i ke ola lawelawe o nā sila, akā e hōʻemi hoʻi i ke alapine o ka hoʻololi ʻana o ka mea hana; a ʻo ka pale wela kiʻekiʻe o ka FKM he liʻiliʻi loa. No ka mīkini hana hana ʻōnaehana hydraulic, ʻo 16MPa ka ʻōnaehana hana (he ʻōnaehana kiʻekiʻe), ka mea hana (HM46 a i ʻole HM32 hydraulic oil) o ka mahana hana maʻamau o 45-55 ℃ , no ka maikaʻi ʻole o ka hana ʻana o ka hāmeʻa, i hui pū ʻia me ka hana kūpono ʻole o ka mea hoʻohana a no ka ʻimi ʻana i nā pono waiwai o ka hoʻonui ʻana i ka ʻaila. ka ino o ka aila hydraulic.
Eia kekahi, ʻo ka hui pū ʻana o nā ʻōnaehana hydraulic o ka neʻe ʻana o ka rotary kiʻekiʻe (hydraulic pump) a me ka reciprocating sliding (hydraulic cylinder piston rod a me ka multi-way reversing valve stem) e hana pū ai i ka slag metala a me ka hōʻino ʻana o ka aila. nā sila, ma muli o kona ikaika tensile a me ke kū'ēʻana i ka hoʻohaʻahaʻaʻana i nā waiwai aila No nā hōʻailona NBR i kēia manawa, ma muli o kona ikaika tensile a me ke kū'ē i ka hoʻohaʻahaʻaʻana o kaʻaila a me ka maʻalahi loa e hāʻule, ma muli o ka ikaika o ka HNBR, maikaʻi ka ho'ōlaʻana, ma ka hapa o ka nalo kokeʻana o ka hana o nā sila he mea liʻiliʻi ka hopena, no laila, i loko o ka'ōnaehana hydraulic o nā cylinders a me nā pumps, hiki ke hoʻomaikaʻi maikaʻi i ka hydraulic system o nā cylinders, pumps, valves. hopena a me ke ola lawelawe.
