1. Utsi wa chipinda chopopera kuti usungitse malo ogwirira ntchito a chipinda chopopera, kuthamanga kwa mpweya kuyenera kuwongoleredwa mkati mwa (0.25 ~ 1) m/s molingana ndi zomwe zili mulamulo la Labor Safety and Health. Kutulutsa kwa chipinda chopoperapo nthawi zambiri ndi mpweya waukulu, kuchuluka kwa nthunzi yosungunulira ndikotsika kwambiri (gawo lake la voliyumu lili pafupifupi 10-3% ~ 2 × 10-'%). Kuonjezera apo, utsi wa chipinda chopoperapo mankhwala ulinso ndi mbali ya nkhungu ya utoto yopangidwa ndi kupopera mbewu mankhwalawa.
Kukula kwa tinthu ta fumbi ili (madontho a chifunga cha lacquer) ndi pafupifupi (20 ~ 200) μm kapena kupitilira apo, palibe mphepo yayikulu ikuwulukira kutali, ndikuyambitsa ngozi yapagulu, komanso kukhala cholepheretsa kuwononga gasi, izi ziyenera kulipidwa. chidwi ku.
2. Ntchito ya mpweya kuyanika chipinda utsi mpweya mu chipinda ndi kupanga ❖ kuyanika mu kupenta, kuyanika kapena kukakamizidwa kuyanika pamaso, kotero kuti mbali ya zosungunulira mu filimu yosalala volatilization ndi mapangidwe filimu wabwino, zambiri ndi kutambasuka kwa filimu. njira ya chipinda chopenta, mu utsi uwu muli nthunzi wosungunulira, ndipo pafupifupi palibe nkhungu yopopera utoto.
3. Utsi wochokera m'chipinda chowumitsira mpweya wotuluka m'chipinda chowumitsira, kuphatikizapo utsi wa penti ndi mafuta. Yoyamba ili ndi zosungunulira zotsalira mu ❖ kuyanika filimu osati chamunthuyo mu chipinda kutsitsi ndi kuyanika chipinda, mbali ya kosakhazikika zigawo zikuluzikulu monga plasticizer kapena utomoni monoma, matenthedwe kuwonongeka mankhwala, anachita mankhwala. Chotsatiracho chimagwiritsidwa ntchito ngati gwero la kutentha kwa mpweya woyaka mafuta. Mapangidwe ake amasiyanasiyana ndi mafuta, monga kuwotcha mafuta olemera, omwe ali ndi sulfure wambiri pakupanga mpweya wa sulfite, pamene kutentha kwa ng'anjo kuli kochepa, kusintha kwa ntchito ndi kusamalidwa bwino ndi kusamalira, chifukwa cha kuyaka kosakwanira ndi utsi. Kugwiritsa ntchito mafuta a gasi, ngakhale kuti mtengo wamafuta ndi wokwera kwambiri komanso mpweya woyaka moto ndi womveka bwino, pali zida zotsika mtengo, kukonza kosavuta, zabwino zambiri zamatenthedwe. Kumene magetsi ndi nthunzi zimagwiritsidwa ntchito monga magwero a kutentha m'chipinda chowumitsa, mpweya wotulutsa mpweya wochokera ku dongosolo la mafuta saganiziridwa.
