Ukuba irhasi ayiphumanga kwintsimbi phambi kokuba umgubo ugqunywe, iingxaki ezinje ngamaqhuma, amaqamza kunye neepinholes zingenzeka.Ehlabathini leengubo zomgubo, imiphezulu yentsimbi efana nentsimbi, intsimbi kunye nealuminiyam ayisoloko inyamezeleka.Ezi zinyithi zibamba iipokotho zerhasi, umoya kunye nezinye izinto ezingcolisa isinyithi ngexesha lokuphosa.Ngaphambi kokugubungela umgubo, iworkshop kufuneka isuse ezi gesi kunye nokungcola kwintsimbi.Inkqubo yokukhupha igesi efakiweyo okanye ungcoliseko ibizwa ngokuba yi-degassing.Ukuba ivenkile ayichithwanga ngokufanelekileyo, ngoko ke iingxaki ezinjengama-bumps, ama-bubbles, kunye neepinholes ziya kubangela ukulahlekelwa kokubambelela phakathi kweengubo kunye nokusebenza kwakhona.Ukutshatyalaliswa kwegesi kwenzeka xa i-substrate ishushu, ebangela ukuba isinyithi sandise kwaye sikhuphe iigesi ezibanjiweyo kunye nezinye izinto ezingcolileyo.Kufuneka kuqatshelwe ukuba ngexesha lenkqubo yokunyanga i-powder coatings, iigesi eziseleyo okanye ukungcola kwi-substrate nazo ziya kukhutshwa.Ukongezelela, igesi ikhutshwa ngexesha lenkqubo yokuphosa i-substrate (i-sand casting okanye i-die casting).Ukongeza, ezinye iimveliso (ezifana nezongezo ze-OGF) zinokomisa zixutywe kunye neengubo zomgubo ukunceda ukusombulula le nto.Ukutshiza ngomgubo wentsimbi, la manyathelo anokuba luqili kwaye athathe ixesha elongezelelweyo.Nangona kunjalo, eli xesha longezelelweyo liyinxenye encinci yexesha elifunekayo ukuze usebenze kwakhona kwaye uqale kwakhona yonke inkqubo.Nangona esi ayisosisombululo sobudenge, ukuyisebenzisa kunye neeprimers ezenziwe ngokukodwa kunye ne-topcoat kunokunceda ukunciphisa iingxaki zokukhupha umoya.U-2021 uya kuvela ngaphambi kokuba wazi.Iya kuphawula isiqalo seshumi leminyaka elitsha kwaye izise utshintsho kwihlabathi ngendlela esilazi ngayo.Ngaphezu kweminyaka engama-50, iibhedi ezinolwelo bezisetyenziselwa ukugquma iinxalenye ngomgubo.Kweli nqaku, iingcali ezimbini zeshishini zisombulule iingxaki eziqhelekileyo ezinxulumene nenkqubo yebhedi emanzi…