Kungani ipainti yepowder iyadinga ukusebenzisa okuncane kunamapainti amaningi kwezindawo zokusebenza?

Ukuhlanzekile Kakhulu: Ukuthi ukufutha kwe-powder kuhlela ukuthi ukubuyisa kwesikhathi sokubaluleka kwezinhlobo zokubaluleka

Ukubambisana Kwemolekyuli nokubambisana Kwematrix Yezipolimha Ezihlanganisiwe

I-powder paint ihlaba umxhwele ngokuqina kwayo okubabazekayo ngenxa yokuthi iyaqina lapho ifudunyezwa. Ukushisa kwakha izibopho eziqinile zamakhemikhali phakathi kwezinhlayiya zokumboza nanoma iyiphi indawo ezisetshenziswa kuyo. Okwenzeka kuyamangalisa ngempela. Ukumboza kuba yinethiwekhi esindayo yama-polymer axhunyiwe angasheshi ukuwohloka ngaphansi kwazo zonke izinhlobo zokucindezeleka. Cabanga ngokushayisana, ukudlidliza njalo, noma izinto ezishaywa ngokuphindaphindiwe lapho zisebenza. Imidwebo ejwayelekile enamanzi inamathela ebusweni ngokuxhumana nje ngokomzimba, kodwa upende oyimpuphu usebenza ngendlela ehlukile. Ukuhlangana kwamakhemikhali kwenza kube nzima kakhulu ukuba imifantu emincane iqale ukwakheka noma isakazeke ebusweni. Ukuhlolwa kubonisa ukuthi lezi zembozo ze-powder zingamelana namandla okuguqulwa cishe izikhathi ezintathu kangcono kunezinketho zendabuko ezisekelwe ku-solvent ngokusho kwamazinga e-ASTM D2794. Yingakho abakhiqizi abaningi kangaka bekhetha ukumboza ngempuphu imishini yabo nemishini evivinywa nsuku zonke.

isikhathi sokusebenza esingaphezulu kuka-20 ngonyaka ngaphandle kokwesibili ngonyaka kuma-Epoxies ne-Polyurethanes amathili

Ukuhambisana nokuphila kwezinto lezi zokusebenza kubonisa ukuthi zihlala ngaphezu kwezinye izikhathi emhlabeni njengoba kuzobonakala. Umsebenzi wokuhlola emkhosini wabonisa ukuthi iziqephu ezihlisiwe ngemithombo yezinkumbulo (powder) zingahlanza ngaphezu kwezinye izikhathi zeminyaka e-20 ngaphandle kokufuna ukwenza izisebenzo zokulungisa, ngakho-ke iziqephu ezihlisiwe ngemithombo yezinkumbulo (liquid epoxies) noma izinkumbulo zezibhamu (polyurethanes) zizobegina ukuphatha phansi phakathi kwezinye izikhathi zeminyaka e-5 ne-10. Kungani lokhu kahle kwenza? Kuyinto yokuthi umhlisi wezinkumbulo (powder coating) uyadala indawo yokulinda eyisodwa ngokwemithombo, ekhindela ukuthi ukukhula kwamafutha (rust) nokuphatha phansi (corrosion) akwazi ukugcina. Ngokwesifundo esenzekile ngokushesha isikhathi sokuhlanganisa amandla (accelerated testing) esenzekile ngokushesha ngu-AMPP ngo-2023, kubonakala ukuthi kukhona kuphela umbhalo we-13% wokuphatha phansi okunqamuka ngokwesikhathi sokubona ngaphandle (outdoor exposure) sokwezinye izikhathi zeminyaka e-15. Ngokwesibonelo esikhethekileyo kubagcina bempilo (factory managers) nabasupervisors bempilo, lokhu wonke kubonisa ukuthi kufanele kubuyiselwa izinto zokusebenza ngaphezu kwezinye izikhathi zeminyaka e-60% ngaphansi kwezinye izikhathi zeminyaka. Futhi lapho izinto zokusebenza azifanele kubuyiselwa ngaphezu kwezinye izikhathi zeminyaka, imali ekhuphile ngokuphakeme kusukela kuleli sikhathi kubonakala ngaphezu kwezinye izikhathi zeminyaka kubaninzi abasebenzi.

Ukuhambisana Okuphezulu Nokugcina Umndeni: Ukuvikela Kusuka Kwemvula Yomthwalo, Ukufade Kwe-UV, Kunye Nokuvikela Kusuka Kwemithwalo Yomthwalo

Ukubambezela Kwesithunzi Nokuthi Kuyisifunda Esingasolventi Sokuvikela Ukungena Kwemithwalo Yomthwalo

Lapho kubhalwa ngendlela yomthwalo wokubhalwa ngokweqiniso, umthwalo wokubhalwa ngokweqiniso uyadala umkhawulo ongafanele kakhulu emazini noma kuzinye izinto eziningi zokubhalwa ngokweqiniso, futhi akudingi amasolventi noma amavoc ezingakholwa. Amakhawulo okubhalwa ngamasolventi ayagcina izikhumba ezincinci lapho amasolventi ashiywa, kodwa lezi zikhumba ziyabonisa ukuthi izinto njengomfula wasebhayini noma izinkemikhali ezingabi ngena ngokugcina emazini. Umthwalo wokubhalwa ngokweqiniso uyasebenza ngendlela eyohlukile ngoba uyadala imatriks esihlukile esibhalwe ngokushisa, ekubonisa ukuthi zonke izinto ziyabulawa ngokuphelele ukuze izinkemikhali nezinkemikhali zingalipheleli. Lokhu kwenza umphumela omkhulu kuhamba kwemvula yomthwalo, ikakhulu kubizo obizwa ngokuthi yizinhlobo zezinto zokusebenza njengamabhoti, izindawo zokusebenza nezinkemikhali, izihlangu, kunye nezinye izinkundla zokusebenza apho izindleko zokusebenzisa ziyagcina ukuphanda ngokuphelele.

Ukuchaza Kwesikhathi Sokuphinda Ngokwe-QUV: >90% Ukubuyisela Kwemboni Emva Kwemizuzu Engu-5,000

Kodwa sifuna ukuphakanyiswa kwe-QUV kwezinkinga zokugqibela kwesiko sokubona, okusimula amazwana amabili okukhanya kwezulu nokuthi kufanele kubheke kuzo izinsuku zokuhlala nezinsuku zokushisa, iziphumo zisibonisa into enkulu ekuphakanyiseni kwezinkamba zokuphakanyiswa. Emva kokuhlala kumazwana amashumi ayisihlanu, kuyasebenza futhi ngokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphakanyiswa kwezinkamba zokuphak......

Izindlela Zokusebenza Ezizimangaliso Zokuphatha Isikhathi Sokuphela: Ukubhalwa Kwemithombo Yokubona Ukuthi Kuyaphakamisa I-ROI Yokuqondisa Amaphetha

ukuphula Kweminyaka Yezindlela Zokusebenza Ngamashumi Amathathu Nama-62 (AMPP 2023)

Ngokombiko we-AMPP ka-2023, izikhungo ezenza ushintsho ekufakeni upende oluyimpuphu ngokuvamile zibona imali engaphansi ngo-62% esetshenziselwa ukugcinwa kwayo ngokuhamba kwesikhathi uma iqhathaniswa nalezo ezisebenzisa upende olumanzi. Isizathu? I-powder ayiqhekeki, ayiqhekeki, noma ingagqwali njengokuqedwa kwendabuko. Lezi zinkinga ziholela ekuvuseleleni okucasulayo nasekugcwaliseni umsebenzi wokupenda kabusha. Okwenza lokhu kwenzeke yilokho okubizwa ngokuthi i-thermoset polymer matrix, ehlala ndawonye iminyaka eminingi ngaphandle kokuwohloka. Lokho kusho ukuthi ngeke kusaba nesidingo sokupenda kabusha njalo ngemva kweminyaka engu-5 kuya kwengu-10 njengoba senza ngezingubo ezivamile ezifakwa ngamanzi. Uma sibheka isithombe esibanzi, kunomsebenzi omncane odingekayo wokulungiselela izindawo ngaphambi kokuphinda upende, akekho osadinga ukubhekana nokuhlanza izixazululo, futhi isikhathi phakathi kokugcinwa okudingekayo sinwebeka kakhulu. Zonke lezi zinto zihlangene zenza kube lula kakhulu ukuba izinkampani zikhokhe imali yokusebenza kwazo nsuku zonke.

Isifundo Sasekupheleni: Umthunywa wezinkampani zokuthengisa izinto zokugcina ezingu-1 kwezinhlangano zokuthengisa izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokugcina kuzokuthenga izinto zokug......

Umprofesi wamaphakathi amakhulu we-automotive wabona ukuthi isikhathi sakhe sokusebenzisa amakhemikali kusukela emva kwezinsuku zokuphatha kwakho kushukuma ngeminyaka yonke ngemithathu ngamashumi amahlanu lapho wabuyisela kubukhona kwezinkulungwane zokufaka amakhemikali kwezincwadi zokugcina. Iplanti yasave isikhathi ngoba ayikho futhi ukuthi bafake amasolventi, bumenye amafiltela kwezincwadi zokufaka amakhemikali, noma buphinde buphendula izinkinga zokungafani kwezincwadi. Amakhemikali okufaka amakhemikali akhona kahle kakhulu ngokuphatha kwezincwadi – kude kwe-95% ngaphandle kwe-30 kuya kwe-40% ngezincwadi zokufaka amakhemikali – okusho ukuthi kunezinto eziningi ezingavunywa. Ngaphezu kwalokho, izincwadi zihlala kuhlela kahle lapho zihlala kuhlela, futhi ukuprodukha kuhamba kahle. Futhi masibuye sibhekele izinkinga zokuphatha kwe-VOC. Ngokubhekisele kwezincwadi ezintsha, akukho VOC ezivunywayo, futhi lempilisi yayiphatha izinkinga zokuphatha kwezinkinga zokuphatha. Kuzo konke, lokhu kubuyisela kubukhona kwakho kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusukela emva kwezinsuku zokuphatha kusuk......