IFaraday Cage kwiPowder Coating application

Masiqale sijonge okwenzekayo kwisithuba phakathi kompu wokutshiza kunye nenxalenye ngexesha le-electrostatic yengubo inkqubo yesicelo. Kwi-Figure 1, amandla ombane aphezulu asetyenziswe kwincam ye-electrode yokutshaja yompu yenza indawo yombane (eboniswe ngemigca ebomvu) phakathi kompu kunye nenxalenye ephantsi. Oku kuzisa uphuhliso lokukhutshwa kwe-corona. Isixa esikhulu seeyoni zasimahla eziveliswa yi-corona yokukhutshwa zigcwalisa indawo phakathi kompu kunye nenxalenye. Ezinye ze-ion zibanjwe yi-powder particles, okubangela ukuba iinqununu zihlawuliswe. Nangona kunjalo, ii-ion ezininzi zihlala zikhululekile kwaye zihamba kunye nemigca yentsimi yombane ukuya kwindawo ephantsi yesinyithi, ixutywe kunye namasuntswana omgubo oqhutywe ngumsinga womoya.

Njengoko bekutshiwo ngaphambili, ilifu lamasuntswana omgubo ohlawuliswayo kunye neeyoni zasimahla ezenziwe kwisithuba esiphakathi kompu wokutshiza kunye nenxalenye inokongezelekayo okubizwa ngokuba yintlawulo yendawo. Ngokufana nelifu lendudumo elidala indawo yombane phakathi kwawo nomhlaba (ethi ekugqibeleni ikhokelele kuphuhliso lombane), ilifu lamasuntswana omgubo ohlawuliswayo kunye neeyoni zasimahla lenza indawo yombane phakathi kwayo kunye nenxalenye esekelwe phantsi. Ngoko ke, kwindlela eqhelekileyo yokutshaja i-corona, intsimi yombane kwindawo ekufutshane nenxalenye yendawo iqulethwe ngamasimi adalwe yi-electrode yokutshaja yompu kunye nentlawulo yendawo. Ukudityaniswa kwale miba mibini iququzelela ukufakwa kwepowder kwi-substrate ephantsi, okubangela ukuhanjiswa okuphezulu.Iimpembelelo ezilungileyo zemimandla eqinile yombane eyenziwe yinkqubo eqhelekileyo yokutshaja i-corona ibonakaliswe kakhulu xa iinxalenye zokugquma kunye neendawo ezinkulu, ezithe tye kwisantya esiphezulu sokuhambisa. Ngelishwa, imimandla yombane eyomeleleyo yenkqubo yokutshaja i-corona ingaba neziphumo ezibi kwezinye izicelo. Ngokomzekelo, xa ugubungela iindawo ezinobunzulu obunzulu kunye neeshaneli, umntu udibana nefuthe le-Faraday cage (jonga umfanekiso 2) .Xa inxalenye inekhefu okanye umjelo ebusweni bayo, intsimi yombane iya kulandela indlela ye-resistivity ephantsi ukuya emhlabeni ( oko kukuthi imiphetho yekhefu elinjalo). Ngoko ke, ngobuninzi bendawo yombane (ukusuka kwimipu kunye nentlawulo yendawo) igxininise emaphethelweni etshaneli, i-powder deposition iya kwandiswa kakhulu kule mimandla kwaye i-powder layering layer iya kwakha ngokukhawuleza.

Ngelishwa, iziphumo ezimbini ezimbi ziya kukhapha le nkqubo. Okokuqala, iincinci ezincinci zinethuba lokungena ngaphakathi kwi-recess kuba iinqununu ze-powder "zityhalwa" ngamandla kwintsimi yombane ukuya kumaphethelo e-Faraday cage. Okwesibini, ii-ion zasimahla eziveliswa kukukhutshwa kwe-corona ziya kulandela imigca yasendle ukuya emiphethweni, ngokukhawuleza izalise i-coating esele ikhona ngentlawulo eyongezelelweyo, kwaye ikhokelela kuphuhliso olukhawulezayo lwe-ionization yangasemva. imikhosi kwaye ifakwe kwi-substrate, kufuneka kubekho intsimi yombane eyaneleyo yokuncedisa kwinkqubo. Kwi-Figure 2, kucacile ukuba akukho ntsimi eyenziwe yi-electrode yesibhamu, okanye intsimi yentlawulo yendawo phakathi kwesibhamu kunye nenxalenye ingena ngaphakathi kwi-cage yeFaraday. Ngoko ke, kuphela umthombo woncedo ekugqumeni i-insides yeendawo ezihlanjululweyo yintsimi eyenziwe yintlawulo yendawo ye-powder particles ehanjiswa ngumoya womoya ngaphakathi kwi-recess (jonga umfanekiso 3) . ukuphuhlisa emacaleni alo kuya kuvelisa i-ion ezintle eziza kunciphisa intlawulo ye-powder particles ezama ukudlula phakathi kwe-Faraday cage edges ukuze ifake ngaphakathi kwesiteshi. amasuntswana epowder ahanjiswe ngaphakathi komjelo ngomjelo womoya akayi kukwanela ukudala amandla anamandla okwaneleyo ombane ukuze anqobe ukuxhatshazwa komoya kunye nokubeka umgubo.

Ngoko ke, ukucwangciswa kwentsimi yombane kunye nokugxininiswa kwayo emaphethelweni eendawo ze-Faraday cage akuyona ingxaki kuphela xa ugubungela iindawo ezivaliweyo. Ukuba bekuyimfuneko kuphela ukutshiza ikhefu ixesha elide ngokwaneleyo. Singalindela ukuba xa imiphetho igqunywe ngumgubo ongqindilili, amanye amasuntswana awayi kukwazi ukubeka apho, kunye nekuphela kwendawo engqiqweni yokuba umgubo uye ungaphakathi kwikhefu. Ngelishwa oku akwenzeki ngenxa, ngokuyinxenye, ukubuyisela i-ionization. Kukho imizekelo emininzi yeendawo ze-Faraday cage ezingenakugqunywa kungakhathaliseki ukuba i-powder ifafazwe ixesha elide kangakanani.Kwezinye iimeko, oku kwenzeka ngenxa yejometri ye-recess kunye neengxaki zokuphazamiseka komoya, kodwa amaxesha amaninzi ngenxa ye-ionization yangasemva.