I-Thermosetting Powder Coating For Electrostatic Spraying

Ifomu le-powder coatings lobuchwepheshe be-electrostatic spraying lihluke ngokuphelele kunezingubo ezijwayelekile futhi likhona esimweni sempushana ecolekile. Ngenxa yokuthi ayikho i-solvent, ibizwa ngokuthi i-powder coatings. Izici eziyinhloko ze-powder coating yilezi: azinangozi, zisebenza kahle, zonga izinsiza futhi azivumelani nemvelo.

I-Thermosetting powder iwuhlobo olusetshenziswa kakhulu lwempushana yokufafaza ngogesi futhi ingeyokuqala okumele ithuthukiswe futhi isetshenziswe. Inobunzima obuphezulu, ukumelana namakhemikhali okuhle kakhulu kanye nokumelana nokushisa okuphezulu kakhulu, futhi isetshenziswa kabanzi ekuhlanganiseni kwezimboni, ukukhiqiza, ukwakha kanye neminye imikhakha. Isetshenziswa kakhulu i-thermosetting powders ihlanganisa i-epoxy, i-polyester, i-acrylate ne-polyether.

I-electrostatic spraying powder coatings ngokuvamile ihlukaniswe ngezigaba ezimbili: i-thermoplastic powder coatings kanye ne-thermosetting powder coatings.

1. I-Thermoplastic powder coating

I-Thermoplastic powder coating iqukethe i-thermoplastic, i-pigment, i-filler, i-binder kanye ne-stabilizer. I-Thermoplastic powder coatings ihlanganisa: i-polyethylene, i-polypropylene, i-polyester, i-PVC, i-polyether e-chlorinated, i-polyamide, i-cellulose, i-polyester nokunye.

2. I-Thermosetting powder coatings

I-Thermosetting powder coating iqukethe inhlaka ye-thermosetting, i-ejenti yokwelapha, i-pigment, i-filler kanye nezithasiselo. I-Thermosetting powder coatings ihlanganisa: i-epoxy resin, i-epoxy polyester, i-polyester, i-polyurethane, i-acrylic resin njalonjalo.

I-powder yepulasitiki ingahlukaniswa ibe yimpuphu ye-thermoplastic kanye ne-thermosetting powder; impushana yangaphandle kanye nempushana yasendlini; impushana ekwazi ukumelana nokushisa okuphezulu kanye nempushana yokushisa ephansi.

1. Izinzuzo ze-thermoplastic powder powder ziwukuqina, ukugoba okuhle, ukumelana namakhemikhali, futhi kungasetshenziswa embotsheni yefilimu enamathelayo.

2. Inzuzo ye-powder yangaphakathi ukuthi ukusebenza kubuthakathaka kune-powder yangaphandle, ingasetshenziselwa ukumboza i-workpiece yasendlini, intengo ishibhile.

3. I-powder yokushisa ephezulu ingakwazi ukumelana nokushisa okuphezulu kwama-degree angu-200 isikhathi eside futhi ukugqoka akuguquli umbala, izakhiwo ezingokomzimba kanye nemishini yobubanzi obuvunyelwe.

4. I-Thermosetting powder ekamelweni lokushisa ngeke ithambe futhi i-agglomeration, ukuhlakazeka okuhle kwemishini, kulula ukwenza ifilimu yokugqoka eyisicaba.

5. Impushana yangaphandle ifanelekela ukumbozwa kwengcezu yokusebenza yangaphandle, ene-antioxidant, i-anti-ultraviolet ray, i-anti-acid kanye nenkungu ye-alkali nemvula, ukunwetshwa okuhle kokushisa nokusebenza kokufinyela.

6. I-powder enezinga lokushisa eliphansi iyakwazi ukukhuphuka ibe yifilimu yokumboza ku-80-150 degrees Celsius, futhi ingasetshenziswa okhunini nasepulasitiki.