Rapa fluorine (FKM) he elastomer thermosetting, ko te polytetrafluoroethylene (PTFE) he thermoplastic. He rauemi fluorinated e rua, e karapotia ana e ngā ngota fluorine e ngā ngota waro, e tino ātete ana ki ngā matū. I roto i tēnei tuhinga, ka whakatauritehia e te otinga polymer TRP ngā rauemi e rua i waenga i te FKM mePTFEhei whakatau ko tēhea te rauemi whai fluorine whakamutunga, ā, hei whiriwhiri i te whakamutungaKaihanga ngongo PTFE
Ngā painga o te rapa FKM me te PTFE
Ngā Taketake:
FKM: I te Pakanga Tuarua o te Ao, i pāngia ngā waka rererangi e te turuturu o ngā hiri nitrile, kāore i rite te mahi pāmahana iti e hiahiatia ana mō ngā momo mahi. Ko te koretake o ngā hononga fluorocarbon e tohu ana he mutunga tūturu ngā elastomers fluorinated, ngā fluoroelastomers rānei. Nō reira ka tīmata te hokohoko i te rapa FKM i te tau 1948.
PTFE: I te tau 1938, i kitea e te kaipūtaiao o DuPont, a Roy Plancott, te polytetrafluoroethylene mā te tūpono. I whakamātau a Plunkett i ngā hau whakamatao, ā, i rongoatia e ia ki roto i ngā rango. I miharo ia, i te kohikohinga o ēnei hau, ka waiho he matū ware pi mā, kāore e tauhohe ki tētahi matū, ā, ka taea te tu atu i ngā pāmahana tino teitei. I rēhitatia e DuPont te waitohu tuatahi o ngā rauemi PTFE - ptfe i te tau 1945.
Whakatau: Ko te whanaketanga o te PTFE he tūponotanga o tētahi aituā whakamīharo, i hua ake ai te whānautanga o tētahi rauemi whakamiharo. Heoi, he mea tino hiahiatia tētahi rauemi whakamiharo, arā, te rapa FKM, i ngā tau pakanga. Nā tēnei take, ko te takoha hītori a te fluoroelastomer FKM te tikanga he pai ake i tēnei whakataetae.
Ngā Āhuatanga:
Rapa FKM: He kaha ngā hononga waro-hauora o te rapa FKM, ā, he tino matū, he ātete ki te wera, he ātete hoki ki te waikura. He rerekē te maha o ngā hononga waro-hauwai kei roto i te FKM (he hononga ki te ātete wera me te matū ngoikore), engari he kaha ake tonu te ātete matū i te nuinga o ngā elastomers kē atu.
PTFE: Ko te Polytetrafluoroethylene he mekameka ngota waro, me ngā ngota fluorine e rua i runga i ia ngota waro. Ka karapotia e ēnei ngota fluorine te mekameka waro hei hanga i tētahi ngota matotoru me te here waro-fluorine tino kaha me te hanganga polymer, ka kore e taea e te PTFE te aro ki te nuinga o ngā matū.
Whakatau: I runga i te hanganga matū o te PTFE, kāore he here waro-hauwai, ā, he pai ake te koretake o te matū i te FKM (ahakoa he tino ātete tonu te FKM ki ngā matū). Nā konei, he atarangi noa iho te PTFE o te FKM i tēnei wāhanga.
Ngā Painga:
FKM:
Awhe pāmahana whānui (-45°C-204°C)
He ātete matū tino pai
Teitei te matotoru, te pai o te kakano
Ngā āhuatanga miihini pai
Ka taea te hanga mō te whakakorenga pahūtanga, CIP, SIP
PTFE:
Ātete whānui ki te pāmahana (-30°C ki te +200°C)
Kāore i te kaha te mahi matū
He pai rawa te ārai hiko
He tino ātete ki te makariri me te wera
Kāore e piri, ātete wai
Ko te tauwehenga waku te mea iti rawa i roto i ngā mea totoka katoa
Whakatau: Kāore e taea te wehewehe i a rātou i tēnei wāhanga. He nui ake te ātete pāmahana o te FKM, engari kāore e eke ki te mahi a te PTFE i runga i te ātete matū. Ā, he iti ake te ātete wera o te PTFE, engari he maha ngā huarahi e whakarato ana i ngā āhuatanga kore-piripiri.
Ngā ngoikoretanga:
FKM:
Ka pupuhi rānei i roto i te whakarewa whai wheori?
Kāore e taea te whakamahi me ngā konganuku kawakore rewa, hau rānei
He nui ake te utu i ērā atu mea kore-hauora
Mā te whiriwhiri i te FKM hē mō te tono ka tere te rahunga
Ka nui te utu mō ngā taumata pāmahana iti
PTFE:
He iti te kaha me te pakari
Kāore e taea te tukatuka rewa
Ātete ngoikore ki te irahiko
Nā te pakeke o te takutai moana ka uaua te hiri i te PTFE
He nui ake te rerenga o ngā mowhiti-o Ptfe i ērā atu elastomers
Kāore e taea te tāuta i ngā hiri maha nā te kore e ngāwari
Whakatau: I te nuinga o te wā, i toa te rapa FKM i tēnei whakataetae nā tōna kaha, tōna ngāwari me tōna āheinga hiri. Ae, ki te kore e ranea te hiri matū korekore, he pai te PTFE. Heoi, he nui ake te ngāwari o te FKM i ngā āhuatanga katoa!
Ngā tono:
FKM:
Aunoa
Te tukatuka matū
Hinu me te hau
Ngā mīhini mahi taumaha
Rererangi
He tokomaha atu anō
PTFE:
Ngā taputapu tukatuka matū
Ngā takirere
Te kawe matū
Ngā diaphragm papu
Whakatau: He pakanga whakamate anō tēnei! He whānui ake ngā whakamahinga o te FKM, ā, ka taea te whakamahi ki ētahi whakamahinga taumaha rawa atu. Heoi, ahakoa ōna herenga, ko ngā rauemi PTFE te otinga tino pai mō ngā whakamahinga uaua rawa atu e pā ana ki te pēhanga nui, te pāmahana me ngā matū waikura.
Utu:
He hua kounga teitei te rapa FKM nā tōna hanganga matū me tōna ātete matū i muri mai. Ki te kore koe e whakaaro ki ngā āhuatanga matū me te ātete pāmahana, ka taea e koe te whiriwhiri i tētahi elastomer iti ake te utu.
PTFE: He hua kounga teitei anō hoki te rauemi PTFE. Waihoki, ki te kore e nui ake te pāmahana, te pēhanga, me ngā matū waikura e whakamahia ana i roto i tō tono i ngā āhuatanga tino kino, he pai ake pea ngā huarahi kē atu i te iti ake te utu. Hei whakatutuki i te mahi hiri pai rawa atu, ka herea te PTFE ki te matua elastomer hei whakarato i te ātete ki te pēhanga.
WhakataungaHe hua kounga teitei te FKM me te PTFE, ā, he pai ngā take. He āhuatanga motuhake ō ēnei rauemi e rua, e whakamārama ana i te utu mō te hanga. Heoi, me mahara koe, mō ngā tono tino uaua, he āhuatanga motuhake ō rāua. I tēnei wā, ka whiwhi koe i te mea e utua ana e koe, ā, he maha ngā wā ka tere te korenga o ngā kōwhiringa iti te utu. He hē tēnei i te mutunga.
HuaI te nuinga o te wā, ko te ngāwari o te FKM he painga mōna i tēnei whakataetae whakapae. Hei whakamutunga, ko ēnei rauemi e rua kua whakakīia ki te fluoride he ātete matū motuhake me te ātete pāmahana. Heoi, hei kirihou, he pakari ake te PTFE i te FKM; he pai anake mō ngā tono hiri tino kino rawa atu kei reira ngā matū pēhanga teitei me te waikura te mea nui. Ko te whakamahinga whānui o te FKM hei rauemi hiri kua whakaū i tōna wikitoria!
Ko tā mātou e tumanako nei, mā tēnei whakatauritenga o te rapa FKM me te PTFE ka pai ake tō māramatanga ki ngā āhuatanga rerekē o ia rauemi. Me whakanui ko te huarahi pai ki te whiriwhiri i te rauemi tino tika mō tō tono ko te kōrero ki tētahi tohunga ka taea te kī atu ki a koe ngā momo taumata rauemi me te whakataurite i te otinga tino pai mō tō tono.
Ko ngā kōrero i runga ake nei mō te whakataki ihirangi e pā ana ki te FKM me te PTFE, ko tāku tumanako ka taea e tēnei tuhinga te āwhina i a koe, nō Haina mātou he tohungaNgā kaiwhakarato ngongo PTFE, welcome to consult our products and please freely contact us at sales 07@zx-ptfe.com
Ngā rapunga e pā ana ki te ngongo ptfe:
Wā tuku: Paenga-whāwhā-16-2021