Ko te PTFE te kirihou tino pakari e mōhiotia ana i tēnei wā. E whakamahia whānuitia ana i roto i ngā ahumahi maha me ngā taiao uaua. Nā tōna mahi tino pai, kua noho hei hua matua i roto i ngā hua kirihou (e kiia ana te katoa ko te Polytetrafluoroethylene). Nō reira, he maha ake ngā kaihanga e whakaputa ana i aua hua. Ka taea te hanga i te PTFE hei maha ngā momo hua, pērā i ngā ngongo, ngā tokotoko, ngā pereti, ngā gaskets, ngā kiriata, me ētahi atu, e whakamahia ana i roto i ngā mara maha.
He aha te ngongo PTFE?
Ko te Polytetrafluoroethylene (whakarāpopototanga ko te PTFE), e mōhiotia whānuitia ana ko "Kingi Kirihou", he pūmua ngota teitei i whiwhihia mā te whakakotahi i te tetrafluoroethylene hei monomer, he mā, he mārama rānei. Kāore he tae, he tāpiritanga rānei i roto i tēnei rauemi, ā, he āhuatanga tōna o te ātete ki te waikawa me te kawakore, te ātete ki ngā momo whakarewa waro, ā, tata kore e rewa i roto i ngā whakarewa katoa. Hei tāpiri, he whānui te awhe pāmahana o te PTFE, ā, ka taea te whakamahi mō te wā roa i te -65°C~260°C i raro i te pēhanga noa. Ka hangaia mā te tikanga whakaputa whakapiri. He ngāwari ngā ngongo PTFE i hangaia mā te whakamahi i te whakaputa whakapiri, ā, ka taea te hanga ngongo PTFE me ngā diameter o roto he iti ki te 0.3 mm tae atu ki te 100 mm te mōrahi me ngā matotoru pakitara he iti ki te 0.1 mm ki te 2 mm. Nō reira, he hua tino maha ngā whakamahinga o ngā ngongo polytetrafluoroethylene (PTFE) e tuku ana i te whānuitanga o ngā tono i roto i ngā ahumahi rerekē.
He aha i whakamahia whānuitia ai ngā ngongo PTFE:
1. Ātete pāmahana teitei, kāore e wairewa i roto i tētahi whakarewa. Ka taea te tu atu i te pāmahana teitei tae atu ki te 300 °C i roto i te wā poto, ā, ka taea te whakamahi tonu i waenga i te 200 °C me te 260 °C, me te pumau nui o te pāmahana.
2. He ātete pāmahana iti, he pakari ā-mīhini pai i te pāmahana iti, ahakoa ka heke te pāmahana ki te -65 ℃, e kore e pakarukaru, ā, ka taea te pupuri i te 5% te roa.
3. Ātete ki te waikura, ngoikore ki te nuinga o ngā matū me ngā whakarewa, ātete ki ngā waikawa kaha me ngā kawakore, te wai me ngā whakarewa rauropi maha, ka taea te tiaki i ngā wāhanga mai i tetahi momo waikura matū.
4. Ārai-pakeketanga, i raro i te taumaha nui, he rua ngā painga o te ātete ki te kakahu me te kore e piri. Ko te roa o te ora tawhito pai rawa atu i roto i ngā kirihou.
5. He nui te whakahinuhinu, ko te tauwehenga waku iti rawa i waenga i ngā rauemi totoka. Ka rerekē te tauwehenga waku ina paheke te kawenga, engari ko te uara kei waenganui i te 0.05-0.15 anake. Nō reira, he pai ōna painga o te ātete tīmatanga iti me te mahi maeneene mō te hanga peera.
6. Ko te kore-piri te iti rawa o te kukū o te mata o ngā rauemi totoka, ā, kāore e piri ki tētahi matū. Kāore te nuinga o ngā matū e piri ki reira. He pai hoki ngā āhuatanga kore-piri o ngā kiriata tino angiangi.
7. Kāore he kakara, kāore he reka, kāore he paitini, kāore e pāngia e te tinana, ā, kāore he pānga kino ina whakatōkia ki roto i te tinana hei oko toto horihori me ngā okana mō te wā roa.
8. Mama, ngāwari hoki. Ka tino whakaiti i te kaha o te mahi a te kaiwhakahaere.
Ko ētahi o ngā whakamahinga noa o ngā ngongo PTFE:
1. Ahumahi Matū
Nā te ātete nui ki ngā matū katoa, he pai rawa ngā ngongo PTFE mō te whakamahi i roto i te umanga matū. Kei roto i tēnei ko te umanga haurua-ira. Ko ngā tukanga hou o te hanga haurua-ira e hiahia ana kia inehia me te kawe haumaru i ngā wai waikura (ngā waikawa me ngā kawakore). Ka taea e ēnei te kino nui ki te ngongo tuku i roto i te wā poto.
2. Ahumahi motuka
I roto i te miihini motuka, ka whakamahia ngā ngongo PTFE kounga teitei hei whakamomona wahie me ngā ara wahie. Pērā i ngā ngongo wahie, ngā ngongo turbocharger, ngā ngongo whakamatao, ngā ngongo parai aunoa, ngā ngongo parai motopaika, ngā ngongo miihini tīhiera, ngā ngongo reihi me ngā ngongo urungi mana. Ko ngā āhuatanga o te ātete pāmahana teitei me te pāmahana iti, te ātete pēhanga teitei, te ātete kakahu me te ātete waikura o te ngongo PTFE ka roa ai tōna ora mahi me te kore e whakakapia pinepine.
3. Te umanga tā 3D
I roto i te tānga 3D, me whakawhiti te miro ki te pūwero tā, me mahi i roto i te awhe pāmahana teitei. Ko te ngongo PTFE te pūwero tino pai i roto i te umanga tānga 3D nā te mea he nui te pāmahana me ōna āhuatanga kore-piri, e āwhina ana i te neke ngāwari o te rauemi mai i te pūwero.
4. Ahumahi hauora
Ko ngā āhuatanga motuhake o ngā ngongo PTFE ko te hanganga mata ngāwari ki te horoi. I roto i te tekau tau kua pahure ake nei, kua piki haere te whakamahinga o ngā ngongo PTFE i roto i ngā taputapu hauora. Nā te iti o te tauwehenga waku o ngā ngongo PTFE, ko te tikanga he tino maeneene te mata e kore e huna, e āwhina rānei i te tipu o ngā huakita. I roto i ēnei, ka whakamahia ngā ngongo mō ngā cannulas, ngā catheters, ngā pipettes me ngā endoscopes.
5. Ahumahi kai
Nā te ngāwari ki te horoi me te kore e piri, ka taea te whakamahi i ngā ngongo PTFE i roto i te umanga kai. Ina koa, he pai ngā ngongo i hangaia mai i te PTFE kāore i whakakīia nā te mea he koretake ā-tinana, ā, e tutuki ana i ngā aratohu a te US Food and Drug Administration. Nō reira, kua whakamātauhia he kore kino ina pā ki te kirihou me tetahi momo kai.
Ehara i te mea ko te whiriwhiri i ngā momo whakaritenga mō ngā tono rerekē anake te mea e tika ana kia hokona e koe ngā ngongo PTFE tika. He nui ake ngā mea hei whiriwhiri i tētahi kaihanga pono. He tohunga a Besteflon Fluorine plastic Industry Co., Ltd. ki te hanga ngongo me ngā ngongo PTFE kounga teitei mō ngā tau 15. Mena he pātai, he hiahia rānei āu, tēnā whakapā mai ki a mātou mō ētahi atu tohutohu ngaio.
Ngā tuhinga e pā ana
Wā tuku: 13 o Ākuhata 2022