Ko te tukanga whakaputa o te putorino PTFE ko: PTFE, awhina extrusion → ranu → pehi → whakamaroke → sintering → whakamatao → hua
Ko te tukanga niao o PTFE putorino ngā tikanga pana, tikanga extrusion, tikanga waipēhi, tikanga fehokotaki'anga, tikanga awhiowhio, me ētahi atu, i roto i nei tikanga pana ko te tikanga matua.Ko te tikanga, he kapia PTFE marara me te rahi matūriki o 500μm me te kiato kitea o 0.45gml ~ 0.55gml te whakamahia.Mo nga paipa diameter iti, whakamahia te kapia me te nui o te pupuhi, a, mo nga paipa diameter nui, whakamahia te kapia me te iti o te pupuhi.I te nuinga o te wa ka whiriwhirihia e te awhina kohi te 200 me te 260 wairua kohuke.Ko te tukatuka tuarua oPTFE ngongoka taea te whakaputa PTFE wera-shrinkable ngongo, PTFE ngongo tōrino, PTFE ngongo waipēhi, etc.
Ko te ngongo Polytetrafluoroethylene he mea hanga ki te polytetrafluoroethylene kua marara te kapia i te pāmahana rūma ma te whakamahi i te whakarewa pararopi hei awhina tangohanga, ka whakamarokehia ka whakamarokehia.E ai ki te diameter putorino, ka taea te wehea ki nga momo e rua: putorino noa me te putorino moroiti.Ko te diameter o roto o te ngongo noa he 4mm, a ko te diameter o roto o te ngongo moroiti he iti iho i te rite ranei ki te 4mm.
Ko te tukanga whakaputa o te putorino PTFE ko: PTFE, awhina extrusion → ranu → te pehi → whakamaroke → sintering → whakamahana → hua.
He pai te kaha miihini o nga paipa Polytetrafluoroethylene.Ko nga peera he peera papaa, he ahua-V, he mowhiti piston, he peera paera, he aha atu, he mea hanga maiPTFE rakau, ngongo, me nga pereti ma te huri miihini, tapahi ranei, he aukati te waikura , Te aukati me te kore kawe.
1. Ko nga putorino Teflon te nuinga o te whakamahi i te tikanga hangai whakakoi, ka taea hoki te whakamahi mo te whakakoi.Ko te kapia i riro mai i te tikanga polymerization dispersion ka taea te hanga ma te whakapiri i te tangohanga me te calendering.
2. PTFE he uara pH o 0-14 (haunga nga whakarewa alkali whakarewa me te fluorine i raro i te pāmahana teitei me te pehanga teitei), he pai te kaha miihini i waenga i te 100 ° C me te 100 ° C.
3. Ko nga tikanga tukanga motuhake ko te rereke o te pehanga o mua ki te ahua me te rahi o te hua.Engari i te nuinga o te waa ka whakamahia.He 8-34.3MPa te whiri a Teflon, a ko te kapia me te whakakii he 29.4-93MPa.Mo te huruhuru hipi nui e tata ana ki te 600mm te matotoru i roto i te ahunga pehi, kei te mau tonu te waa pupuri o te 20-30min.Kia mahara ka iti ake te mahana i te 185°C.Ka pakarukaru te ngongo Teflon.Ko te peeke PTFE parakore he hua hiri ma e kore e poke i tetahi matū ka pa atu ki a ia ka taea te whakamahi whanui ki nga kai, rongoa me etahi atu umanga.
Wā tuku: Akuhata-04-2020