Ukunika izinto eziguquguqukayo ezibandakanyekayo kwinkqubo yokwaleka ngokusesikweni (umzekelo, ukwakheka kokugquma, i-viscosity, ukuguquguquka kwesubstrate, ubushushu, ukuxutywa komoya, ungcoliseko, ukuphuphuma komphunga, ukufuma, njl.njl.), imiba yesiphene sokugquma inokuvela rhoqo.Makhe sijonge ezinye iingxaki eziqhelekileyo ezinokuvela xa usebenzisa kunye nokunyanga ipeyinti, kunye nezizathu ezinokuthi zenze ntoni malunga nayo.
1. Ukukhutshwa kwamanzi
Oku kubangelwa ukungcoliseka kwe-substrate engahambelani nengubo.Awona nobangela anokubakho ziintsalela eziguquguqukayo, ioyile yenkqubo, iiarhente zokukhupha umngundo, kunye neoyile yeminwe.Ukucocwa ngokucokisekileyo kwe-substrate ngaphambi kokufaka i-coating kuya kusombulula lo mbandela.
2. Ukupheliswa
Kukho izizathu ezininzi eziqhelekileyo zale ngxaki, apho indawo edibeneyo ilahlekelwa ukubambelela kwayo kwi-substrate kwaye inokuphakamisa ukusuka phezulu, enye imbangela enkulu kukungcoliswa komhlaba.Ngokuqhelekileyo, uya kuqaphela kuphela imiba ye-delamination xa inxalenye ivelisiwe, njengoko iqhele ukungabonakali ngokukhawuleza kwaye ukucoca ngokufanelekileyo kunokusombulula umba.Esinye isizathu singenakwaneleyo ixesha lokubambelela phakathi kweengubo, i-solvent ayinalo ixesha elifanelekileyo lokunyuka ngaphambi kwengubo elandelayo, ukuqinisekisa ukuba ixesha elaneleyo phakathi kweengubo zokubambelela kuyimfuneko.
3. Amaqamza
Ukuvalelwa komoya kunokubangelwa kukungabambeleli ngokulinganayo kwi-substrate surface.Njengoko umoya ukhuphuka ngokugquma, iqamza lomoya elincinci liyadalwa.Amanye amaqamza ayadilika enze isangqa esime njenge crater.Ukuba umqhubi akaqapheli kakhulu, isenzo sokuxubha sinokuzisa ama-bubbles emoyeni kwi-coating, kunye nemiphumo echazwe ngasentla.
4. Amaqamza omoya angakumbi kunye ne-voids
Ukuba i-coating inzima kakhulu, okanye i-coating iphilisa ngokukhawuleza (ngobushushu), okanye i-solvent yokwambathisa ikhupha ngokukhawuleza, zonke ezi zinokubangela ukuba umphezulu wengubo uqine ngokukhawuleza ngelixa i-solvent sisaphuma ngumphunga ngaphantsi, ibangela amaqamza ngaphakathi. umaleko ophezulu.
5. I-Fisheye phenomenon
Indawo encinci ejikelezayo ene "crater" ephuma embindini, idla ngokubonwa ngexesha okanye kamsinya emva kokutshiza.Oku kunokubangelwa yi-oyile okanye amanzi avaleleke kwisitshizi somoya kwaye ixhaphakile xa umoya wevenkile unamafu.Thatha amanyathelo okhuseleko ukugcina inkqubo yokucoca kakuhle ukususa nayiphi na ioli okanye ukufuma ekungeneni kwisitshizi.
6. I-Orenji peel
Ikhangeleka njengexolo leorenji, inkangeleko engalinganiyo enamabala.Kwakhona, kusenokubakho izizathu ezahlukahlukeneyo.Ukuba usebenzisa inkqubo yokutshiza, ukuba uxinzelelo lomoya luphantsi kakhulu, luya kubangela i-atomization engalinganiyo, enokubangela le mpembelelo.Ukuba i-thinners isetyenziswe kwiinkqubo zokutshiza ukunciphisa i-viscosity, ngamanye amaxesha ukhetho olungalunganga lwe-thinner lunokubangela ukuba lube ngumphunga ngokukhawuleza, lunganiki i-coating ixesha elaneleyo lokusabalalisa ngokulinganayo.
Ixesha lokuposa: May-08-2023