Hoʻopili ʻia ke ola o ka lawelawe e nā mea āpau aʻe: - ka nui, ke kaomi, ka mahana, ka degere o ka piʻi ʻana o ka puʻuwai a me ka piʻi ʻana o ka wela, ke ʻano o ka media, ke alapine uila, ka wikiwiki o ka media & ka wikiwiki o ka hana valve.
Hiki ke hoʻohana ʻia nā mea noho a me ka sila i loko o nā pahu like ʻole e like me ka pōpō, plug, butterfly, gate, check valves etc.
ʻO ka mea maʻamau no ka noho pōleʻa hoʻokomo i ke apo mea
PTFE,RPTFE,PEEK,DEVLON/NYLON,PPL e like me ke kaomi like 'ole, ka nui a me nā kūlana hana.
ʻO ka mea maʻamau no ka mea hoʻopaʻa haʻahaʻa haʻahaʻa
e lilo i BUNA-N, PTFE, RPTFE, VITON, TFM, etc.
E papa inoa i kekahi mau mea waiwai nui:
BUNA-N (HYCAR a i ʻole Nitrile)- ʻO ka pae wela ka -18 a hiki i ka 100 ℃ kiʻekiʻe.ʻO Buna-N kahi polymer kumu nui i kū maikaʻi i ka aila, ka wai, nā solvents a me nā wai hydraulic.Hōʻike pū ia i ka hoʻopiʻi maikaʻi, ke kūpaʻa abrasion, a me ka ikaika tensile. Hana maikaʻi kēia mea i nā wahi kaʻina kahi i loaʻa ai nā mea kumu paraffin, nā momona momona, nā aila, nā waiʻona a i ʻole nā glycerins, no ka mea, ʻaʻole i hoʻopilikia ʻia.ʻAʻole pono e hoʻohana ʻia a puni ka polar solvents kiʻekiʻe (acetones, ketones), chlorinated hydrocarbons, ozone a i ʻole nitro hydrocarbons.He ʻeleʻele ʻo Hycar a ʻaʻole pono e hoʻohana ʻia i kahi hiki ʻole ke ʻae ʻia ka wehe ʻana.Ua manaʻo ʻia he neoprene pani hoʻohālikelike.ʻO nā ʻokoʻa nui ʻo ia: He palena wela kiʻekiʻe ka Buna-N;ʻOi aku ka paʻa o ka neoprene i ka ʻaila.
EPDM- Mai ka -29 ℃ a 120 ℃.ʻO EPDM kahi polyester elastomer i hana ʻia mai ka ethylene-propylene diene monomer.Loaʻa i ka EPDM ke kūpaʻa abrasion maikaʻi a me ka waimaka a hāʻawi i ke kūpaʻa kemika maikaʻi loa i nā ʻano waikawa a me nā alkaline.Hiki ke hoʻouka ʻia e nā ʻaila a ʻaʻole ʻōlelo ʻia no nā noi e pili ana i ka aila petroleum, nā ʻakika ikaika, a i ʻole nā alkaline ikaika.ʻAʻole pono e hoʻohana ʻia ka EPDM ma nā laina ea i hoʻopaʻa ʻia.Loaʻa iā ia ka maikaʻi o ka wā kahiko a me ka pale ozone..He maikaʻi loa ia no nā ketones a me nā waiʻona.
PTFE (TFE o Teflon)- ʻO ka PTFE ka mea ʻoi loa ka pale kemika o nā plastics āpau.He haʻahaʻa loa ko PTFE mau waiwai i hoʻohālikelike ʻia me nā mea ʻenehana ʻenehana ʻē aʻe, akā mau kona mau waiwai i nā pae kūpono ma luna o kahi pae wela nui (-100 ℃ a 200 ℃, ma muli o ka brand a me ka noi).
RTFE (TFE i hoʻoikaika ʻia/RPTFE)- ʻO ka pae wela maʻamau -60 ℃ a 232 ℃.Hoʻopili ʻia ʻo RPTFE / RTFE me kahi pākēneka i koho ʻia o ka fiber glass filler e hoʻomaikaʻi i ka ikaika a me ke kūʻē ʻana i ka ʻaʻahu abrasive, kahe anuanu, a me ka permeation ma nā noho i hoʻoheheʻe ʻia. ʻO ka hoʻoikaika ʻana e ʻae i ka noi ma ke kaomi kiʻekiʻe a me ka mahana ma mua o ka TFE i hoʻopiha ʻole ʻia.ʻAʻole pono e hoʻohana ʻia ka RTFE i nā noi e hoʻouka i ke aniani, e like me ka waika hydrofluoric a me nā caustics ikaika.
TFE PIHA KAPONO- ʻO ka pae wela ka -50 ℃ a 260 ℃.ʻO TFE piha ka carbon he mea noho maikaʻi loa no ka hoʻohana ʻana i ka mahu a me ka wai wela hoʻokumu ʻia i ka aila.ʻO nā mea hoʻopihapiha me ka graphite e hiki ai i kēia mea noho ke loaʻa kahi ola pōʻai maikaʻi ma mua o nā noho TFE i hoʻopiha a hoʻoikaika ʻia paha.Ua like ke kūpale kemika me nā noho TFE ʻē aʻe.
TFM1600-TFM1600 he mana hoʻololi o PTFE e mālama i ka kūikawā kemika a me ka wela kū'ē waiwai o PTFE, akā, he haʻahaʻa haʻahaʻa loa hehee ai viscosity.ʻO ka hopena ua ho'ēmiʻia anuanu kahe porosity, permeability a me void maʻiʻo. ʻO ka laulā lawelawe no TFM1600 he -200 ℃ a 260 ℃.
TFM1600+20%GF-TFM1600 + 20% GF he kīʻaha fiber i hoʻoikaika ʻia o TFM1600.E like me ka RTFE, akā me ka pōmaikaʻi o TFM1600, hāʻawi ke aniani piha i ke kūʻē abrasion a hoʻomaikaʻi i ke kūpaʻa i nā koina kiʻekiʻe.
TFM4215- ʻO TFM4215 kahi mea koho graphitized carbon filled TFM material. ʻO ke kalapona i hoʻohui ʻia e hoʻomaikaʻi i ke kūpaʻa no nā hui kiʻekiʻe a me ka wela.
VITON(Fluorocarbon, FKM, a i ʻole FPM)- Mai ka-29 ℃ a 149 ℃.Hoʻopili maoli ʻia ka Fluorocarbon elastomer me kahi ākea ākea o nā kemika.Ma muli o kēia ʻano like ʻole kemika nui e pili ana i ka nui o ka neʻe ʻana a me nā pae wela, ua ʻae ʻia ka fluorocarbon elastomer ma ke ʻano he mea hana no nā noho pahu pahu pahi. .He maikaʻi loa ia i ka lawelawe hydrocarbon.ʻO ke kala hina (ʻeleʻele) a ʻulaʻula paha a hiki ke hoʻohana ʻia ma nā laina pepa bleached. ʻAʻole kūpono ʻo Fluorocarbon (VITON) no ka lawelawe ʻana i ka mahu a i ʻole ka wai wela, akā naʻe, ma ke ʻano o-ringe hiki ke ʻae ʻia no nā laina hydrocarbon i hui pū ʻia me ka wai wela. ma ke ʻano/mark.No nā mea noho, hiki i ka FKM ke hāʻawi aku i ke kū'ē hou aku i ka mea hana wai wela.
PEEK-Polyetheretherketone-kiʻekiʻe kiʻekiʻe semi-rigid elastomer.Best kūpono no ke kiʻekiʻe kiʻekiʻe a me ka wela lawelawe.Hāʻawi pū kekahi i ke kūpaʻa corrosion maikaʻi loa. Ka helu ʻana o ka mahana -56.6 ℃ a 288 ℃.
DELRIN/POM-ʻO nā noho Delrin kūikawā i hāʻawiʻia no ke kaomi kiʻekiʻe a me ka lawelawe wela haʻahaʻa. Hiki ke hoʻohanaʻia i ke ea kiʻekiʻe, kaʻaila a me nā mea kinoea'ē aʻe akāʻaʻole kūpono i ka oxidizing ikaika. Temperature rating-50 ℃ a 100 ℃.
NILON/DEVLON- Hāʻawi ʻia nā noho nylon (polyamide) no ke kaomi kiʻekiʻe a me ka lawelawe wela haʻahaʻa.Hiki ke hoʻohana ʻia i ka ea wela kiʻekiʻe, ka aila a me nā ʻenehana kinoea ʻē aʻe akā ʻaʻole kūpono no ka oxidizing ikaika.Ka helu o ka mahana -100 ℃ a 150 ℃.Loaʻa iā Devlon nā hiʻohiʻona o ka absorption wai i lalo o ka wā lōʻihi, ke kūpaʻa ikaika ikaika a me ka retardancy ahi maikaʻi.Hoʻohana nui ʻia ʻo Devlon i ka ʻaila a me nā pipeline kinoea kūlohelohe ma waho no ka papa 600 ~ 1500lbs trunnion ball valve.
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Ka manawa hoʻouna: Oct-26-2022