I. Kuwongolera mzere wopangira.
① Pamenemakina a glove a nitrile akugulitsidwa's kutentha mafuta kukatentha kufika 190 ℃, kupanga liwiro ≤m ≤65pcs/mphindi.
②Pamene kutentha kwa mafuta otentha kumakhala kotsika kuposa 145 ℃, liwiro liyenera kuchepetsedwa molingana ndi kuchuluka kwa kuyanika kwa filimu ya rabara.
③ pamene kutentha mafuta kukatentha ndi otsika kuposa 130 ℃ ayenera yomweyo kumwedwa kusiya processing.
Chachiwiri, impregnating nitric asidi njira: nitric asidi ndende ayenera kulamulidwa pa 3% -4%, kuwonjezera nitric asidi njira kwa nitric asidi thanki ayenera kukhazikitsidwa pasadakhale ndi ndende yomweyo ya yankho, woyendetsa ndi mosamalitsa zoletsedwa kuwonjezera madzi kapena nitric acid ku thanki mwakufuna kwake.
Chachitatu, kuthira madzi amchere: 5-10Kg ya alkali imawonjezedwa ku thanki ya alkali pakusintha kulikonse pakupanga kwabwinobwino, ndi nthawi imodzi pambuyo pa maola 4 pakusintha kotsatira.
Zinayi, kupaka manja nkhungu: ① kutentha kwa thanki ya brush kuyenera kuyendetsedwa pa 45 ± 15 ℃
②Madzi ochapira nkhungu ayenera kukhala osefukira ndikusinthidwa pafupipafupi ndi madzi abwino, ndipo mtundu wamadzi uyenera kusinthidwa bwino kamodzi pa maola 8 aliwonse.
③Maburashi ochapira nkhungu amayenera kuyang'aniridwa pafupipafupi ngati tsitsi limavala kuti zitsimikizike kuti maburashi.
④Maburashi ochapira nkhungu ndi zoletsedwa kotheratu kuti adetsedwa ndi zinthu zamafuta.
Atatu akuviika madzi otentha.
① Kutentha kwa thanki yamadzi otentha kuyenera kuyendetsedwa mkati mwa 80 ± 15 ℃, madzi amadzimadzi amasinthidwa nthawi zonse kuti apitirize kusefukira.Aliyense asidi osamba manja nkhungu m'malo 1 nthawi.
Chachinayi, impregnating wowuma coagulant.
① wowuma coagulant CaCL2 kulamulira zili pa 8±3%.
②Wowuma coagulant kutentha chofunika 65 ± 15 ℃.
③ Wowuma coagulant ayenera kusonkhezeredwa bwino kamodzi mphindi 50-60 zilizonse.
③ wowuma coagulant masiku 4-8 kuti asinthe bwino kamodzi.
V. Kuyanika kowuma kowuma: ① nkhungu yotuluka mu uvuni iyenera kukhala yowuma koma yonyowa pang'ono.