Te tukanga whakaputa oNgongo PTFEko: PTFE, āwhina whakaputa → whakaranu → pēhi → whakamaroke → sintering → whakamatao → hua
Kei roto i te tukanga whakapūtanga o ngā ngongo PTFE te tikanga pana, te tikanga whakaputa, te tikanga waipēhi, te tikanga whakarewa, te tikanga takai, me ētahi atu, ko te tikanga pana te tikanga matua. I te nuinga o te wā, ka whakamahia he kapia PTFE marara me te rahi matūriki o te 500μm me te matotoru kitea o te 0.45gml ~0.55gml. Mō ngā ngongo diameter iti, whakamahia te kapia me te pēhitanga nui, ā, mō ngā ngongo diameter nui, whakamahia te kapia me te pēhitanga iti. Ko te āwhina pēhi te tikanga ka whiriwhiri i te 200 me te 260 wai kohuke. Ka taea e te tukatuka tuarua o ngā ngongo PTFE te whakaputa i ngā ngongo PTFE ka taea te whakaiti wera, ngā ngongo porowhita PTFE, ngā ngongo waipēhi PTFE, me ētahi atu.
He mea hanga te ngongo polytetrafluoroethylene ki te kapia polytetrafluoroethylene kua whakamararatia i te pāmahana rūma mā te whakamahi i te whakarewa waro hei āwhina whakaputa, kātahi ka whakamaroketia, ka whakakāhia. E ai ki te whānui o te ngongo, ka taea te wehewehe kia rua ngā momo: te ngongo noa me te ngongo moroiti. Ko te whānui o roto o te ngongo noa he 4mm, ā, ko te whānui o roto o te ngongo moroiti he iti iho i te 4mm, he ōrite rānei.
Ko te tukanga whakaputa o te ngongo PTFE ko: PTFE, āwhina extrusion → whakaranu → pēhi → whakamaroke → sintering → whakamatao → hua.
He kaha ā-ringa pai ngā ngongo Polytetrafluoroethylene. Ko ngā hiri he hiri papatahi, he hiri āhua-V, he mowhiti piston, he hiri takirere pōro, me ētahi atu, he mea hanga ki ngā tokotoko PTFE, ngā ngongo, me ngā pereti mā te huri, te tapahi rānei, ā, he ātete ki te waikura, ki te ātete, ā, kāore e kawe hiko.
1. Ko ngā ngongo Teflon e whakamahi ana i te tikanga whakapūtanga pēhi, ā, ka taea hoki te whakamahi i te whakapūtanga tāwhana plunger. Ko te kapia i whiwhihia mā te tikanga polymerization marara ka taea te hanga mā te tāwhana whakapiri me te calendering.
2. Ko te uara pH o te PTFE he 0-14 (haunga ngā konganuku kawakore rewa me te wheorine i raro i te pāmahana tiketike me te pēhanga tiketike), ka taea e tēnei te whai kaha miihini pai i waenga i te 100°C me te 100°C.
3. Ko ngā āhuatanga motuhake o te tukanga ko te rerekētanga o te pēhanga hanga-mua i runga i te āhua me te rahi o te hua. Engari ko te tikanga e whakamahia ana. Ko te tākai whiri Teflon he 8-34.3MPa, ā, ko te kapia me te whakakī he 29.4-93MPa. Mō te huruhuru hipi nui me te matotoru o te 600mm i te ahunga pēhi, kei reira tonu te wā pupuri pēhanga o te 20-30min. Kia mahara, ina iti iho te pāmahana i te 185°C, ka pakarukaru ngā ngongo Teflon. Ko te gasket PTFE parakore he hua hiri ma e kore e whakapoke i tetahi matū e pa atu ana ki a ia, ā, ka taea te whakamahi whānui i roto i te kai, te rongoā me ētahi atu ahumahi.
Wā tuku: Oketopa-13-2023