Hoʻololi o nā mea Sila
Ua ulu ka ulu ʻana o nā mea sila e like me ke alo o nā sila i nā koi koʻikoʻi.Hiki ke hoʻokō ʻia nā pono mua me ka hoʻohana ʻana i ka hemp i hoʻopaʻa ʻia a i ʻole ka ʻili, akā i ka lilo ʻana o nā koi a ʻoi aku ka ikaika o nā mea hou.Ua alakaʻi ʻia kēia i ka hoʻokomo ʻana i nā hōʻailona kopa maoli, i hoʻololi ʻia i elastomers synthetic, a hope loa i nā polymers e like me PTFE (Polytetrafluoroethylene).
ʻEhā o nā mea maʻamau maʻamau o kēia manawa no ka rotary shaft seal lehelehe he nitrile rubber, polyacrylate, FKM, a me PTFE.ʻO kēia mau mea, ʻekolu mau elastomers - nitrile rubber, polyacrylate rubber a me FKM - a hoʻokahi wale nō polymer - PTFE.E ʻike kākou i ke ʻano o kēia mau mea.
Mea Hana 1: Nitrile Rubber
He mau inoa liʻiliʻi loa ka lāʻau nitrile, me ka rubber acrylonitrile butadiene, Buna-N, a me NBR.ʻO ka mea maʻamau, he elastomer rubber synthetic i kū kūʻē loa i kekahi mau kemika nui e like me ka aila, nā lubricants, a me nā wahie.Ke hoʻohālikelike ʻia me nā elastomers ʻē aʻe, hana ia i kahi hana koʻikoʻi o ka pale ʻana i ka hōʻino a me ka ʻike ʻana i ka lā a me ka wā.Loaʻa iā ia nā palena.
Mea 2: Polyacrylate Rubber
ʻO ka polyacrylate e pili ana i ka polyacrylate rubber a i kekahi manawa i kapa ʻia ʻo ACM.Hāʻawi ia i ka pale wela ʻoi aku ka maikaʻi a kūpono me ka wikiwiki o ka shaft ma mua o ka nitrile rubber.Maikaʻi nō hoʻi ia i kekahi mau noi kūikawā e like me nā lubricants i loaʻa ka sulfur.ʻO kona ikaika liʻiliʻi a me ke kūpaʻa wai kona mau hiʻohiʻona palena nui.
Mea 3: FKM (Fluoroelastomers)
Eia kekahi mea hoihoi: piʻoloke pinepine ka poʻe i ka ʻokoʻa ma waena o FKM, FPM, a me Viton.Ke kuhikuhi nei lākou a pau i ka mea kumu hoʻokahi.Loaʻa ka inoa FKM i kona mau aʻa ma ka helu ASTM o flouroelastomers, aʻo FPM ka pōkole DIN/ISO.ʻO Viton kona inoa kālepa, nona ka DuPont.ʻOi aku ka maikaʻi o nā waiwai o FKM ma mua o ka nitrile rubber a i ʻole polyacrylate rubber, ma ke ʻano o ka mahana a me ka wikiwiki o ka shaft, akā ke kūpaʻa kemika.ʻO ia ke kumu kūʻai nui loa o nā elastomers ʻekolu i kūkākūkā ʻia i kēia manawa.
Mea Hana 4: PTFE (Polytetrafluoroethylene)
ʻIke maikaʻi ʻia ʻo PTFE ma kāna inoa kālepa, polymer (no DuPont pū kekahi).ʻOi aku ka PTFE ma mua o ka hana o ka nitrile rubber, polyacrylate rubber, a me ka FKM ma ke ʻano o ka wikiwiki o ka shaft, ka wela, a me ke kūpaʻa kemika.ʻO ka ʻoiaʻiʻo, loaʻa iā ia ke kūpaʻa kemika maikaʻi loa o kekahi polymer a i ʻole elastomer a me ka coefficient haʻahaʻa o ka friction.
Ka hopena
Hōʻike ka pakuhi ma lalo i ke ʻano o kēia mau mea sila maʻamau ʻehā i hoʻopaʻa ʻia kekahi i kekahi e pili ana i kā lākou palena wikiwiki.ʻOi aku ka PTFE ma mua o ke koena, ʻoiai me ka wikiwiki o ka shaft ma mua o 30,000 rpm.Ke koho nei ʻoe i kahi sila e pono ai ke ola i kahi kaiapuni ʻino a paʻakikī i nā wikiwiki kiʻekiʻe, mai nānā ʻoe ma mua o PTFE.
Ka manawa hoʻouna: Mei-08-2018