I-PTFE inzima ukuyibumba kanye nenqubo yesibili.Izinto ze-PTFEinenani elikhulu lokuncipha kanye ne-viscosity ephezulu kakhulu yokuncibilika, ngakho ayikwazi ukusetshenziselwa izinqubo zokucubungula zesibili ezifana nokubumba umjovo kanye ne-calendering, okuvame ukusetshenziselwa amapulasitiki.I-PTFE rod ram extruder ihlangabezana nezidingo zokucubungula.Ngakho kungani i-PTFE inzima ukuyicubungula?
1. Izakhiwo ezingezinhle zemishini namandla okuthwala umthwalo.Amandla omshini we-PTFE angama-MPa ayi-14 kuye kwangama-25 kuphela, angenakuqiniswa, kodwa ukwelulwa kokuphuka kukhulu.I-coefficient yokunwetshwa komugqa inkulu.Ngo -50 ~ 250 ℃, i-PTFE linear extension coefficient engu-1.13 × 10-4 ~ 2.16 × 10-5 / ℃, iyinsimbi eyiphinda izikhathi ezingu-13.Ngakho-ke, kulula ukukhubaza, ukuqhekeka, nezinye izenzakalo nezinye izinto.
2. Ukungahambi kahle kwe-thermal.I-Thermal conductivity ye-0.24kcal/(mh-℃ kuphela), kulula ukubangela ukwanda kokushisa, ukukhathala kokushisa, nokuguquka kokushisa.
3. Ukumelana nokukhasa okungalungile, ukugeleza okulula okubandayo.I-PTFE endimeni yesikhathi eside yomthwalo, i-creep inkulu, futhi ijwayele ukugeleza okubandayo.Ukungazweli kahle kwe-abrasion,I-PTFEubulukhuni bezinto ezibonakalayo buphansi, futhi umhuzuko mkhulu.Uma umthwalo (P) kanye nesivinini sokushelela (V) sidlula izimo ezithile, ukuguga kwawo okungqubuzanayo kuba kukhulu.Ngakho-ke inani le-PV lilinganiselwe kancane esicelweni futhi nezindleko zokukhiqiza ziphezulu.Iziphambeko ezingenhla ze-PTFE zikhawulela ukusetshenziswa kwayo, ukuthuthukisa ukusebenza kwayo okuphelele.Ucwaningo nge-PTFE ekhaya naphesheya lugxile ekutholeni izindlela ezifanele zokuyilungisa, ngaleyo ndlela ithuthukise ukusebenza kwayo ngezinga elithile futhi yandise uhla lwayo lwezinhlelo zokusebenza.
4. Iphinde ibe nokumelana okuhle kakhulu emazingeni okushisa aphezulu naphansi, okwenza ukuthi isetshenziswe kakhulu ekusetshenzisweni okufana nokwakhiwa kwamapani angagxili ngezinhloso zokulwa ne-adhesive.Ingaphezulu le-molecule ye-PTFE isongwe ngokuphelele ngama-athomu e-fluorine ngakho-ke inohlamvu olunganamathele, okwenza kube nzima ukubopha ngezindlela ezijwayelekile.Inqubo ye-anti-adhesive iqukethe izinhlobo ezimbili eziyinhloko: ukukhweza izingxenye ze-PTFE noma amashidi ku-substrate kanye nokunciphisa ukushisa.Izingubo ze-PTFEnoma indwangu e-lacquered efakwe ingilazi phezu kwe-substrate.
Isikhathi sokuthumela: Dec-09-2022