I-Fluidized bed powder coating iwuphawu lwempushana olusetshenziswa ngohlelo lombhede olunamanzi lapho izinhlayiya zempushana ezigaywe kahle zilenga emoyeni, futhi ingxenye eshisiwe icwiliswa ethangini lempushana. Izinhlayiya ezincibilikisiwe zihlangana entweni, zinikeze ukungaguquguquki, nokuqeda ezingxenyeni zensimbi. Le ndlela ifaneleka kakhulu njenge-coating esebenzayo ukuze inikeze ukuhuzuka, ukugqwala, nokumelana namakhemikhali. Ugqinsi olujwayelekile lwale ndlela luwugqinsi luka-200-2000μm, kodwa ukujiya okusindayo kungafinyelelwa.

Ingxenye eyimpushana embozwe nge-fluidized bed coating idlula ku-st elandelayoeps.

1. Fudumeza

Ingxenye yensimbi kufanele ishiswe kuhhavini ibe ngu-220-400 ℃. Lokhu kushisa kuphezulu kunendawo yokuncibilika yempushana yombhede owuketshezi, futhi yenza impushana icishe noma ipholise ingxenye ngokushesha.

2. Ukucwilisa

Isiphephetha-moya esingaphansi kwethange lempushana siqhumisa izinhlayiya eziyimpushana zibe sesimweni esifana noketshezi. Sicwilisa ingxenye eshisayo kumbhede omanzi we-powder coating bese siyihambisa nxazonke ukuze kuhlanganiswe okuqhubekayo. Ubukhulu bokugcina bocezu lokusebenza depeibheka ukushisa kwezingxenye ngaphambi kokuthi icwiliswe ethangini nokuthi ihlala isikhathi esingakanani kumbhede owuketshezi we-powder coating.

4.Ukushisa kwangemuva kokwelapha

Isigaba sokugcina se-fluid bed powder coating yinqubo yokugcina yokuhlanganisa. Ngemuva kokuthi impushana idonsela emkhiqizweni, iya kuhhavini ezingeni lokushisa eliphansi ukuze yelapheke. I-post-heat kumele ibe ngaphansi kwezinga lokushisa eliphansi kunaleyo yehhavini elishisayo. Inhloso yalesi sinyathelo ukuqinisekisa ukuthi yonke impushana ibambelele engxenyeni ngesikhathi sokucwiliswa futhi iyancibilika ibe yindwangu ebushelelezi, efanayo.

5.Kupholisa

Manje susa ucezu lokusebenzela oluboshiwe kuhhavini bese ulupholisa ngefeni yomoya noma ngomoya wemvelo.

Isembozo sempushana yombhede ewuketshezi sihlanganisa ukucwilisa ucezu lokusebenza olushisayo ethangini lempushana, okuvumela impushana inyibilike engxenyeni bese yakhe ifilimu, bese ihlinzeka isikhathi esanele nokushisa ukuze le filimu igeleze ingene enamathelayo eqhubekayo. I-workpiece kufanele icwiliswe embhedeni omanzi ngokushesha ngangokunokwenzeka ngemva kokuyikhipha kuhhavini oshisayo ukuze ugcine ukulahlekelwa ukushisa okungenani. Umjikelezo wesikhathi kufanele usungulwe ukuze kugcinwe lesi sikhawu sesikhathi singashintshi. Ngenkathi i-powder, i-workpiece kufanele igcinwe inyakaza ukugcina i-powder ihamba phezu kwengxenye eshisayo. Isiphakamiso sengxenye ethile depends ekucushweni kwayo.

Ukunyakaza okungalungile noma okunganele kungaba imbangela yezinkinga ezimbalwa: izimbobo, ikakhulukazi ngaphansi kwezindawo ezivundlile eziyisicaba kanye nasezimpambanweni zocingo: ukubukeka “kwekhasi elolintshi” kanye nokungambozeki ngokwanele kwamakhona noma imifantu. Ukunyakaza okungalungile nakho kungaholela ekugqineni kwe-nonnuniform, njenge-oval coating ezintanjeni eziyindilinga. Isikhathi esivamile sokucwiliswa kumpushana oxutshiwe yimizuzwana emithathu kuya kwengama-20.

Impushana eyeqile kufanele isuswe ngokushesha ngemva kokumbozwa ukuze kuvinjelwe ukunqwabelana ngokweqile. Lokhu kungenziwa ngokuqhuma komoya ovela kujethi yomoya elawulwayo, ngokuthinta noma ukudlidliza ingxenye, noma ukuyitshekisa ukuze ilahle okweqile. Uma impushana eyeqile ingangcolisiwe ngenye impushana noma ukungcola, ingasetshenziswa kabusha. Uma ingxenye inokushisa okwanele okuyinsalela, ukumboza kungase kugeleze kumazinga amukelekayo ngaphandle kokushisisa okuthunyelwe. Ezingxenyeni ezizacile, noma izingxenye ezizwelayo ukushisa, kungase kudingeke ukushisa kweposi.