Iyini ukuminyana kwe-POM? Ukuhlaziywa okuphelele kwezakhiwo zezinto ze-POM
Iyini ukuminyana kwe-POM? Lona umbuzo obalulekile wabasebenzi bemboni yamakhemikhali kanye nonjiniyela bezinto zokwakha, i-POM (i-Polyoxymethylene) iyipulasitiki yobunjiniyela esetshenziswa kakhulu embonini yokukhiqiza, futhi ukuminyana kwayo kunomthelela oqondile ezimeni zayo zokusebenza nokusebenza. Leli phepha lizohlaziya ngokuningiliziwe ukuminyana kwe-POM, izici zayo ezinethonya kanye nokubaluleka kwayo ekusetshenzisweni okungokoqobo.
1. Ukwethulwa okuyisisekelo kwezinto ze-POM
I-POM (i-polyoxymethylene) iyi-thermoplastic ecwebe kakhulu enamandla amakhulu, ukumelana nokugqokwa okuhle kanye ne-coefficient ephansi yokungqubuzana. Ngenxa yalezi zakhiwo ezinhle kakhulu zomzimba, i-POM isetshenziswa kabanzi ekwenzeni amagiya, ama-bearing, amaslayidi, izinsimbi nezinye izingxenye zemishini. Ngaphambi kokuxoxa ngokuthi "yini ukuminyana kwe-POM", kuyadingeka ukuqonda izici eziyisisekelo ze-POM, okusiza ukuqonda kangcono umphumela wokuminyana kwayo ekusebenzeni kwayo. 2.
2. Ibanga lezinombolo lokuminyana kwe-POM
Ngokuvamile, ukuminyana kwe-POM kusuka ku-1.41 g/cm³ kuya ku-1.43 g/cm³. Ngokukhethekile, ukuminyana kwe-POM kuthonywa kakhulu ukwakheka kwamaketanga e-polymer kanye nemingcele yenqubo esetshenziswa ngesikhathi sokukhiqiza. Ngenxa yokuthi i-POM inezinga eliphezulu lokucwebezela, lokhu kubangela ukuminyana okuphezulu, okuphakathi nendawo ephezulu yamapulasitiki ezimboni. Lokhu kuminyana kuvumela i-POM ukuthi iphumelele ekumelaneni nemihuzuko nasekuzinzeni kobukhulu.
3. Izinto ezithinta ukuminyana kwe-POM
Ngenkathi ububanzi bokuminyana be-POM bulinganiselwe, ukuminyana kwe-POM kungase kuhluke kancane kumkhiqizi kuye kumkhiqizi kanye nesimo sohlelo lokusebenza kuya esimweni sohlelo lokusebenza. Izinto ezithinta ukuminyana kwe-POM zifaka:

I-Crystallinity: ukuphakama kwekristalu kwezinto ze-POM, kulapho kukhuphuka ukuminyana kwayo. Ubucwebe obuphakeme ngokuvamile busho ukuthi impahla inamandla angcono emishini nokumelana nokugqoka.
Izihlungi nezithasiselo: Kwezinye izinhlelo zokusebenza ezikhethekile, izigcwalisi noma izithasiselo zingase zengezwe ukuze kuthuthukiswe ukumelana nokushisa noma izakhiwo zikagesi ze-POM. Ukwengezwa kwalezi zinto kungase kuguqule kancane ukuminyana kwe-POM.
Ukucutshungulwa: Amasu okucubungula ahlukene, njengokubumba umjovo, ukubunjwa kwe-extrusion, njll., kungaholela ekushintsheni okuncane kokuminyana kwe-POM.

4. Ukuminyana kwe-POM kokusetshenziswa okungokoqobo kokubaluleka kwe
Kuzinhlelo zokusebenza ezisebenzayo, ukuqonda ukuthi "iyini ukuminyana kwe-POM" kungasiza onjiniyela bakhethe izinto ezifanele. Ukuminyana okuphezulu ngokuvamile kusho ukuthi impahla inezakhiwo ezingcono zemishini, kodwa ingase iholele ekwenyukeni kwesisindo. Kwezinye izinhlelo zokusebenza ezizwelayo isisindo, njengokukhiqiza izingxenye zezimoto, ibhalansi phakathi kokusebenza nokuminyana kungase kudingeke ukuthi kutholwe.
Ukuminyana kwe-POM nakho kuthinta izici zayo zokucubungula kanye nokuzinza kwe-dimensional komkhiqizo oqediwe. Izinto zokuminyana eziphakeme kungenzeka zizinze ngokulinganayo phakathi nenqubo yokubumba, kuyilapho izinto zokuminyana eziphansi zingafanelana kangcono nezidingo ezithile zokukhanya.
5. Isifinyezo
Ukuthi ukuminyana kwe-POM kuyini kuncike ezintweni eziningi, kufaka phakathi ubukristalu, izigcwalisi kanye nokucubungula. Ngokuvamile, ukuminyana kwe-POM kusuka ku-1.41 g/cm³ kuye ku-1.43 g/cm³, ukuminyana okwenza izinto ze-POM ziphumelele ezinhlelweni eziningi zezimboni. Ukuqonda nokusebenzisa izici zokuminyana ze-POM kubalulekile ekuthuthukiseni ukusebenza komkhiqizo kanye nokwenza kahle izinqubo zokukhiqiza.
Sithemba ukuthi ngalesi sihloko, unokuqonda okujulile kokuthi "yini ukuminyana kwe-POM". Kulabo njiniyela abafuna ukunemba nokusebenza ekukhetheni nasekusetshenzisweni kwezinto ezibonakalayo, lolu lwazi luzosiza ukusebenzisa kangcono izinto ze-POM.