Ukumelana nesimo sezulu kubhekisela ekuqineni kwefilimu emboza impushana lapho kuvezwe izimo zomoya wangaphandle.
Cishe wonke ama-traffic guardrail asetshenziswa ngaphandle. Isimo somoya esihlanganisa ukukhanya kwelanga, umoya-mpilo kanye ne-ozone, ukushintsha kwezinga lokushisa elishisayo nelibandayo, amanzi kanye nomswakama olinganiselwe, kanye nama-microorganisms nezinambuzane konke kuzothinta impilo yesevisi ye-coating.
Izinsimbi zethrafikhi ngokuvamile zidinga ukusetshenziswa ngaphandle iminyaka engaphezu kwengu-10 ngaphandle kokushintsha umbala okusobala, imifantu nemifantu, futhi kugcinwe ubuqotho nokuhlobisa kwefilimu enamathelayo. Ngakho-ke, izidingo zokumelana nesimo sezulu ze-powder coatings zibaluleke kakhulu.
Isici esiyinhloko esithinta ukumelana nesimo sezulu ukukhanya kwelanga. Emisebeni yelanga, amandla okukhanya kuphela anamaza amaza angama-250 kuya ku-1400 nm asakaza ebusweni bomhlaba. Phakathi kwabo, ubude be-wavelength be-780 kuya ku-1400 nm buyi-infrared, bubalelwa ku-42% kuya ku-60% wesamba semisebe yelanga. Ikhipha amandla okushisa ikakhulukazi ezintweni; ubude begagasi obungu-380 kuya ku-780 nm buwukukhanya okubonakalayo. , ebalelwa ku-39% kuya ku-53% wesamba semisebe yelanga, ithinta ikakhulukazi izinto ngokusebenzisa amandla okushisa kanye nokusabela kwamakhemikhali; ukukhanya kwe-ultraviolet okunobude begagasi obungu-250~400nm ikakhulukazi kuthinta izinto ngokusabela kwamakhemikhali.
Ukuhlola kubonise ukuthi umthelela olimaza kakhulu kuma-polymer resins imisebe ye-ultraviolet enobude obungama-290 kuya ku-400 nm, ikakhulukazi imisebe ye-ultraviolet enobude obungamaza obungama-300 nm, okuyisici esiyinhloko esiholela ekuwohlokeni kwama-polyolefin resins.
Izinga lokushisa linomthelela ekumelana nesimo sezulu. Kukho konke ukukhuphuka kwezinga lokushisa ngo-10°C, izinga lokusabela kwe-photochemical lizophindeka kabili.
Ngaphezu kokubangela ukusabela kwe-hydrolysis kanye ne-deformation yokumuncwa kwamanzi kwefilimu enamathelayo, amanzi emvula nawo anemiphumela yokuguguleka nokulimala. Amanzi angakwazi ukugeza ukungcola nemikhiqizo eguga endaweni yokuvikela, kodwa anciphisa umphumela wokuvikela futhi asheshise ukuguga.
Ukuthuthukisa ukumelana nesimo sezulu kwezimbobo zempushana kusho ukutadisha izici ezibangela ukuwohloka kwefilimu enamathelayo kanye nokuthola izindlela zokumelana nokuxazulula izinkinga. Eminyakeni yamuva, izimbotshana ze-powder zezwe lami zenze umsebenzi omningi othela izithelo ekukhetheni izinto ezingavuthiwe, ukulungiswa okungeziwe, ukuxuba, ukukhishwa kanye nokuchotshozwa, okuye kwathuthukisa kakhulu ukumelana nesimo sezulu se-powder coatings.
Kodwa-ke, kufanele kuphawulwe ukuthi ikhwalithi yamanje yokukhiqizwa kwe-powder ezweni lami ayilingani, ngokungafani okukhulu. Abakhiqizi abambalwa baphishekela inzuzo kuphela, bengeza izinto ezigaywe kabusha, bagcwalise izithasiselo ezishibhile, ukuntula izindlela zokuhlola, futhi banekhwalithi yomkhiqizo ephansi. Impushana izoshintsha umbala futhi iqhekeke phakathi nesikhashana ngemva kokumbozwa. , kanye ne-traffic guardrail eboshwe ngempushana enhle ngempela ingafinyelela ngaphezu kwe-10a ukuze isetshenziswe ngaphandle.
Ukuhlolwa kokumelana nesimo sezulu kuvame ukusebenzisa ukuhlolwa kokuguga okusheshisiwe nokuhlola ukuchayeka kwesimo sezulu. Ukuhlolwa kokuguga kokwenziwa kulingisa izimo zomkhathi bese kuqhathaniswa nesampula. Ingakwazi kuphela ukubala isikhathi sokuguga sangaphandle esilinganayo. Imiphumela yokuhlolwa kokuchayeka kwemvelo ingokoqobo kakhulu, kodwa ithatha isikhathi eside.
Isikhathi sokuthumela: Dec-12-2023