Nā sila ʻōpala polyurethane, i hana ʻia mai nā mea polyurethane rubber, he mau ʻāpana koʻikoʻi i loko o nā ʻano hana ʻoihana like ʻole. Loaʻa kēia mau sila i nā ʻano like ʻole, me nā O-rings, V-rings, U-rings, Y-rings, rectangular seal, custom-shaped seal, a me nā mea holoi sealing.
ʻO ka polyurethane rubber, kahi polymer synthetic, e hoʻopili i ka hakahaka ma waena o ka rubber kūlohelohe a me nā plastics maʻamau. Hoʻohana nui ʻia i ka hana kaomi pepa metala, ʻo ka polyurethane rubber i nīnau ʻia he ʻano polyester casting. Hoʻohui ʻia ia mai ka adipic acid a me ka ethylene glycol, e hopena ana i kahi polymer me ke kaumaha molekala o kahi o 2000. Hoʻopili hou ʻia kēia polymer e hana i kahi prepolymer me nā hui hopena isocyanate. A laila hui pū ʻia ka prepolymer me MOCA (4,4′-methylenebis(2-chloroaniline)) a hoʻolei ʻia i loko o nā ʻōmole, a ukali ʻia e ka vulcanization lua e hana i nā huahana polyurethane rubber me nā pae paʻakikī like ʻole.
Hiki ke hoʻopilikino ʻia ka paʻakikī o nā sila laholio polyurethane e hoʻokō ai i nā koi hana metala pepa kikoʻī, mai 20A a 90A ma ka pālākiō paʻakikī Shore.
Nā ʻano hana koʻikoʻi:
- Ke Kū'ē Kūikawā i ka ʻAʻahu: Hōʻike ka laholio polyurethane i ke kū'ē kiʻekiʻe loa i waena o nā ʻano laholio āpau. Hōʻike nā hoʻokolohua hale hana he 3 a 5 mau manawa kona kūpaʻa ʻana i ka ʻaʻahu ma mua o ka laholio maoli, me nā noi maoli e hōʻike pinepine ana a hiki i ka 10 mau manawa o ka lōʻihi.
- Ikaika Kiʻekiʻe a me ka Elasticity: Ma loko o ka pae paʻakikī o Shore A60 a i A70, hōʻike ka polyurethane rubber i ka ikaika kiʻekiʻe a me ka elasticity maikaʻi loa.
- ʻOi aku ka maikaʻi o ka cushioning a me ka hoʻopili haʻalulu: Ma ka mahana o ka lumi, hiki i nā ʻāpana polyurethane rubber ke omo i ka 10% a 20% o ka ikehu haʻalulu, me nā helu omo kiʻekiʻe aʻe i nā alapine haʻalulu i hoʻonui ʻia.
- ʻO ke kūpaʻa maikaʻi loa i ka ʻaila a me nā kemika: Hōʻike ka laholio polyurethane i ka liʻiliʻi o ka pilina no nā ʻaila mineral non-polar a noho mau ʻaʻole i hoʻopilikia ʻia e nā wahie (e like me ke kerosene a me ka gasoline) a me nā ʻaila mechanical (e like me nā ʻaila hydraulic a me nā lubricating), e ʻoi aku ka maikaʻi ma mua o nā laholio hana maʻamau a me ka hoʻokūkū ʻana i ka laholio nitrile. Eia nō naʻe, hōʻike ia i ka pehu nui i loko o nā alcohols, esters, a me nā hydrocarbons aromatic.
- Ka helu kuʻi kiʻekiʻe: ʻOi aku ma mua o 0.5.
- Nā Waiwai ʻē aʻe: Ke kūpaʻa haʻahaʻa maikaʻi, ke kūpaʻa ozone, ke kūpaʻa radiation, ka insulation uila, a me nā waiwai pipili.
Nā noi:
Ma muli o kona mau waiwai kino a me nā ʻano mechanical kiʻekiʻe loa, hoʻohana pinepine ʻia ka polyurethane rubber i nā noi hana kiʻekiʻe, me nā huahana pale ʻaʻahu, nā mea pale ʻaila ikaika kiʻekiʻe, a me nā ʻāpana modulus paʻakikī kiʻekiʻe. Loaʻa iā ia ka hoʻohana nui ʻana ma nā ʻoihana like ʻole:
- Mīkini a me ke kaʻa: Hana ʻana i nā ʻāpana pale braking alapine kiʻekiʻe, nā ʻāpana laholio anti-vibration, nā pūnāwai laholio, nā mea hoʻopili, a me nā ʻāpana mīkini lole.
- Nā Huahana Pale ʻAila: Ke hana nei i nā wili paʻi, nā sila, nā ipu wahie, a me nā sila ʻaila.
- Nā Kaiapuni Hakakā ʻOʻoleʻa: Hoʻohana ʻia i loko o nā paipu conveyor, nā uhi o nā lako wili, nā pale, nā kānana, nā ʻapo kāmaʻa, nā huila hoʻokele hakakā, nā bushings, nā pads brake, a me nā kaila paikikala.
- Kaomi Anu a me ke Kulou ʻana: Ke lawelawe nei ma ke ʻano he mea hana no nā kaʻina hana kaomi anu a me ke kulou hou, e pani ana i nā make kila e hoʻopau manawa a pipiʻi hoʻi.
- ʻŌpala Huʻa: Ma ka hoʻohana ʻana i ka hopena o nā hui isocyanate me ka wai e hoʻokuʻu i ka CO2, hiki ke hana ʻia ka ʻōpala huʻa māmā me nā waiwai mechanical maikaʻi loa, kūpono no ka insulation, ka insulation wela, ka soundproofing, a me nā noi anti-vibration.
- Nā Hoʻohana Lapaʻau: Hoʻohana ʻia i nā ʻāpana laholio hana, nā kīʻaha koko hana, ka ʻili synthetic, nā paipu hoʻokomo, nā mea hoʻoponopono, a me nā noi niho.
Ka manawa hoʻouna: Sep-17-2025