Indlela Yokuvimbela I-Powder Coating Caking
Ungakuvimbela kanjani i-powder coating ukusika
Ama-resin ahlukene anamazinga okushisa engilazi ahlukene, njenge-epoxy ne-polyester resin inezinga lokushisa lengilazi elicishe libe ngu-50 degrees Celsius, i-ejenti ekhanyisayo ( 701) inokushisa kwengilazi okucishe kube ngu-30 degrees Celsius, i-ejenti yokulinganisa uketshezi ngamadigri angaphansi kuka-Celsius.
Uma sikhulu inani lempahla enezinga lokushisa eliphansi lengilazi yokuguquka ukubunjwa kwe-powder enamathelayo , liba likhulu izinga lokushisa lokushintsha kwengilazi lizoba .Izinga lokushisa lokushintsha kwengilazi likalwa ngesisetshenziswa esikhulu esizinikezele, isakhi sofuzo sabakhiqizi bempushana.rally abanalo le mishini ebizayo, futhi inqubo yokukhiqiza abakwazi ukubamba izinga lokushisa lokuguqulwa kwengilazi ye-powder, ngakho-ke, ekukhiqizeni uhlelo lwe-powder olubekwe mayelana nokushisa kwengilazi ye-40 ° C, izinga lokushisa le-powder coating. i-caking njengamazinga okushisa aphephile. Khona-ke ekukhiqizeni ( kanye nenqubo yokugcinwa komkhiqizo kanye nenqubo yokuthutha ) njengendinganiso , eduze nangaphezulu kwaleli zinga lokushisa izisebenzi ezifanele kufanele ziqinise ukusampula komkhiqizo wekhekhe .Ikakhulukazi ehlobo, inkinga yekhekhe yenzeka kalula ngenxa yokukhuphuka kwezinga lokushisa, bese kanjani ukuvimbela ukwakheka kwe powder?
Okokuqala, ukugcoba ngempushana endaweni ethile yokushisa kungumthetho wemvelo. Ukuze uvimbele i-caking powder enamathela, ukukhiqizwa kufanele kugaywe, ukupakishwa, ukugcinwa, ukuthuthwa, ngakho-ke yonke inqubo, imikhiqizo yokugcoba i-powder ekushiseni kwayo kokuguqulwa kwengilazi.
Ngokwalo mbono kukhona izixazululo ezilandelayo:
- Emkhiqizweni we-polyester resin, ukukhethwa kwezinye zezinga lokushisa lokushintsha kwengilazi kungandisa utshwala noma i-asidi, noma kunciphise ukusetshenziswa kwe-resin, izinga lokushisa lokushintsha ingilazi ukunciphisa inani lotshwala ukuze kwandiswe izinga lokushisa lokuguqulwa kwengilazi ye-polyester resin.
- Ekwakhekeni kwe-powder enamathelayo ukuze kuncishiswe izinga lokushisa lengilazi eliphansi le-polymer lisetshenziswa ngenani , njengama-leveling agents kanye ne-lightening agent ukuze kuqinisekiswe ukuthi uhlelo lokumboza ngempushana alunciphisi izinga lokushisa lokuguqulwa kwengilazi.
- Ukukhiqizwa, okuphukile ku-strip sheet material kufanele kupholiswe ngokwanele ngaphambi kokungena enkambisweni yokugaya, ukugaya kufanele kufane ukuze kuncishiswe izinga lokudla, kukhuliswe isidambisi-moya esiholayo, umoya wokungenisa ukuze kulawulwe ukufakwa kwezinga lokushisa lomshini wokugaya umoya. Kodwa-ke, uma i-mill yangaphambili echotshoziwe ama-flakes abambelele ekupholiseni, lokhu kwakamuva bekungeke kube nendlela yokudlala indima enhle, cabangela ama-flakes achotshoziwe endleleni yokupholisa okuphoqelekile ukwelashwa kwe-cryogenic, okusebenza kakhulu kunokubuyisela kabusha.
Ngaphezu kwalokho, izithasiselo ezilwa nokupheka zingase zengezwe, njenge-nanosilica (VK-SP15) noma i-nano-aluminium oxide (VK-L20M) powder ukuvimbela ukunamathela phakathi kwezinhlayiya zempuphu, ama-anti-caking agents ayizakhi zofuzo.rally kanyekanye futhi ama-flakes aphukile milling best.
Sekukonke, Ekukhiqizeni, izisebenzi ezifanele kufanele zenze isampula esiqinile ukuze zigweme i-powder coating caking.