Za a iya taƙaita ƙa'idar fesa sinadarin zinc na zafi kamar haka: da farko, ana amfani da iska mai ƙarfi da bututu don hura barbashi na yashi a saman kayan aikin don cire tsatsa da sikelin oxide a saman ƙarfe, yayin da saman ya yi laushi don ƙara ƙarfin shaƙar murfin fesawar zafi. Sannan, ana amfani da iskar oxygen, acetylene ko tushen zafi na lantarki (ana amfani da dumamar lantarki don manyan kayan aikin, ana amfani da iskar oxygen da dumama acetylene don ƙananan da matsakaitan kayan aikin) ta hanyar iska mai matsewa da kayan aiki na musamman (bindigogi masu fesawa) don fesa sinadarin zinc mai saurin gaske akan saman ƙarfe.
Amfanin Galvanizing
1. Yin amfani da galvanizing mai sanyi yana amfani da tsinken tsinkewa da phosphating a matsayin magani kafin a fara aiki, yana barin ragowar acid da alkali a saman aikin, yana haifar da haɗarin tsatsa kuma yana sa murfin zinc mai sanyi ya zama mai sauƙin rabuwa. Tsarin fesawa na zinc yana amfani da tsinken tsinkewa a matsayin magani kafin a fara aiki, wanda ke haifar da tsafta da rashin ƙarfi. Wannan yana hana tsatsa daga ciki da kuma cire zinc bayan fesawa.
2. Yin amfani da galvanization mai zafi yana buƙatar takamaiman zafin jiki na kimanin 440°C, wanda zai iya haifar da nakasa a cikin aikin. Duk da haka, tsarin fesawa na zinc yana amfani da ƙarancin zafin jiki, ƙasa da 80°C, yana hana nakasa. 3. Tsarin fesawa mai sanyi da zafi yana iyakance kayan aikin zuwa tsayi, faɗi, da tsayin tankin fesawa, yayin da hanyoyin fesawa na zinc ba su da.
4. Tsarin yin amfani da galvanization na sanyi da zafi suma suna gabatar da ƙalubalen gyara a wurin. Lalacewar walda yayin shigarwa a wurin, lodawa da sauke kaya, ko jigilar kaya za a iya gyara su ne kawai da fenti. Tare da feshin zinc, ana iya yin gyaran a wurin ta amfani da feshin zinc, don guje wa cikas a tsarin aiki.
5. Saboda yin amfani da galvanizing a cikin ruwan sanyi yana amfani da tsinken tsinkewa da phosphating a matsayin magani kafin a fara aiki, saman aikin yana da kauri kuma mannewar murfin ba ta da kyau. Sabanin haka, feshin zinc yana amfani da blasting na yashi a matsayin magani kafin a fara aiki, wanda ke haifar da kauri da kuma mannewa mai kyau, tare da ƙarfin ≥6 MPa.
6. Gilashin da aka tsoma a cikin ruwan sanyi yana gurbata ruwa sosai kuma yana haifar da manyan matsalolin muhalli, yayin da gilashin da aka tsoma a cikin ruwan zafi yana da ƙarancin tasirin muhalli. Saboda haka, gilashin da aka tsoma a cikin ruwan zafi zai zama sananne don kare tsatsa na gine-ginen ƙarfe.
Tsarin Zinc Mai Zafi
An raba dukkan tsarin ginin sinadarin zinc mai zafi zuwa matakai huɗu: maganin saman → feshin zinc → maganin rufewa → duba inganci
Maganin Fuskar
Domin ingancin gyaran saman yana shafar inganci da tsawon lokacin da aka yi amfani da shi, gyaran saman tushe yana da mahimmanci. Yi amfani da sandar goge saman tushe don cire tsatsa bisa ga buƙatun tsari. Ka'idojin cire tsatsa suna bin ƙa'idar Sa3 a cikin "Matsalolin Tsatsa da Tsatsa don Matakan Karfe Kafin Zane" (GB8923-88). Wannan ƙa'idar ta ƙayyade buƙatun inganci masu zuwa: Yi amfani da sandar goge sosai don cire sikelin, mai, tsatsa, datti, fenti, da sauran abubuwan da aka haɗa. Ya kamata saman ya nuna haske iri ɗaya na ƙarfe. Bayan shafa yashi, tsaftace saman da iska mai tsabta, busasshiya ko goga mai tsabta. Hakanan ya kamata a yi la'akari da ƙa'idar Sa3 a cikin "Matsalolin Tsatsa da Tsatsa don Matakan Karfe Kafin Zane" (GB8923-88).
Fashewar yashi
A lokacin aiwatar da aikace-aikacen, ana amfani da kayan aiki da ma'auni masu zuwa: na'urar sanyaya iska, tankin iska, mai raba mai da ruwa, matattarar iska, tukunya mai yayyafa yashi, tef mai mannewa, bindiga mai yayyafa yashi, da bututun porcelain mai jure lalacewa. Mai gogewa yana da tauri sosai, yashi mai kusurwa (0.5-2mm). Yashi ya kamata ya bushe, tare da ɗanshi ƙasa da 1%, kuma yana da tsabta kuma babu ƙazanta. bututun yana amfani da bututun porcelain mai siffar L mai faɗaɗa. Ta hanyar matakin faɗaɗa-matsawa-faɗaɗawa, kwararar iska daga bututun rotse yashi yana kaiwa ga saurin supersonic, yana ƙara kuzarin motsi na gogewa sosai, yana ƙara kunnawa da kunna saman substrate, ta haka yana ƙara ƙarfin haɗin murfin. Tsarin cire tsatsa ya haɗa da iska mai matsewa da ke shiga tankin iska, yana ratsa ta mai raba ruwa da iska da matattarar iska don ta zama mai tsabta, bushe, kuma ba tare da mai ba, kafin shiga tukunyar rotse yashi. Tef ɗin manne yana matse yashi cikin bindigar rotse yashi kuma yana busa shi akan ƙarfe. Ta amfani da waɗannan kayan aiki da yanayi, maganin saman zai iya cika ƙa'idodin Sa3, tare da ƙaiƙayin saman 40-60µm. A wannan lokacin, ƙarfin lantarki, matakin kunnawa, da mannewa na saman ƙarfe duk sun kai ga mafi kyawun sigogi.
Feshin Zinc
Ya kamata a kammala fesawar zinc cikin awanni 2-3 bayan an yi amfani da yashi. Wannan saboda ƙarfin lantarki na saman substrate bayan an yi amfani da yashi ya bambanta sosai da wanda aka yi amfani da shi kafin a yi masa magani, wanda hakan ke sa ya kai ga mafi ƙarancin ƙarfinsa. A wannan lokacin, kunna saman substrate ya kai matsakaicin ƙimarsa, kuma ƙarfin haɗin da ke tsakanin substrate da rufin ya kai mafi girmansa. Ƙarfin lantarki na saman substrate ya kasance mai karko na tsawon awanni 2-3. Bayan lokaci, ƙarfin lantarki na saman ya fara ƙaruwa, ƙarfin kunnawa yana raguwa, kuma ƙarfin haɗin da ke tsakanin murfin da substrate yana raguwa. Wannan ya faru ne saboda kauri na fim ɗin oxide na saman. Cikin awanni 2-3, siririn fim ɗin oxide yana iya karyewa cikin sauƙi ta hanyar ƙwayoyin fesawa masu sauri lokacin da suka shafi saman. Bayan awanni 2-3, fim ɗin oxide yana aiki azaman shinge tsakanin murfin da substrate, yana katse manne tsakanin murfin da substrate. Kayan fesawa suna amfani da bindigar fesawa da aka samar a cikin gida (yawanci bindigar fesawa ta hannu ta Zhonglian daga Masana'antar Fesawa ta Shanghai). Kayan zinc da ake amfani da su suna da inganci, waya mai inganci, mara mai, diamita na 3 mm da kuma sinadarin zinc na akalla 99.5%-99.7%.
Lokacin Saƙo: Satumba-05-2025
