Kusan dukkan na'urorin haɗi an yi su ne da ƙarfe na carbon da ƙarfe, kuma ana sa ran na'urori na gabaɗaya don hana lalata. Bugu da ƙari, murfin jiyya na saman dole ne ya bi da tabbaci.
Amma ga saman jiyya, mutane kullum kula da kyau da kuma lalata kariya, amma babban aikin fasteners ne fastening dangane, da kuma surface jiyya yana da babban tasiri a kan fastening yi na fasteners. Sabili da haka, lokacin da zabar jiyya na saman, ya kamata mu kuma la'akari da mahimmancin aikin haɓakawa, wato, daidaiton ƙarfin shigarwa da preload.
1. Electroplating
Electroplating na fasteners yana nufin cewa bangaren fasteners da za a sanya electroplated an nutsar da shi a cikin wani takamaiman ruwa mai ruwa, wanda zai ƙunshi wasu sinadarai na ƙarfe da aka ajiye, ta yadda bayan wucewa ta hanyar ruwa mai ruwa tare da halin yanzu, abubuwan ƙarfe a cikin maganin za su yi hazo kuma su bi. sashin da aka nutse na fasteners. Electroplating na fasteners gabaɗaya ya haɗa da galvanizing, jan ƙarfe, nickel, chromium, jan ƙarfe-nickel gami, da sauransu.
2. Fosfat
Phosphating yana da arha fiye da galvanizing, kuma juriyar lalatarsa ya fi galvanizing muni. Akwai hanyoyin phosphating guda biyu da aka saba amfani da su don masu ɗaure, zinc phosphating da manganese phosphating. Zinc phosphating yana da mafi kyawun kayan shafa fiye da manganese phosphating, kuma manganese phosphating yana da mafi kyawun juriya da juriya fiye da tutiya plating. Kayayyakin phosphating kamar haɗa sanduna da goro na injuna, kawunan silinda, manyan bearings, ƙwanƙolin tashi sama, kusoshi da goro, da sauransu.
3. Oxidation (blackening)
Blackening + mai sanannen shafi ne ga masu ɗaurin masana'antu, saboda shine mafi arha kuma yana da kyau kafin amfani da mai ya ƙare. Domin baƙar fata kusan ba ta da ikon hana tsatsa, zai yi tsatsa nan da nan bayan ba shi da mai. Ko da a gaban man fetur, gwajin fesa gishiri mai tsaka tsaki zai iya isa kawai 3 ~ 5 hours.
4. Zafi tsoma zinc
Hot galvanizing shine rufin yaduwa na thermal wanda zinc ke dumama zuwa ruwa. Its shafi kauri ne 15 ~ 100μm, kuma shi ne ba sauki don sarrafa, amma yana da kyau lalata juriya, don haka ana amfani da sau da yawa a aikin injiniya. Saboda yanayin zafi na sarrafa tutiya mai zafi, (340-500C) ba za a iya amfani da shi ba don masu ɗaure sama da digiri 10.9. Farashin galvanizing mai zafi-tsoma na fasteners ya fi na electroplating.
5. Zinc impregnation
Zinc impregnation wani m karfen ƙarfe thermal yaduwa shafi na tutiya foda. Daidaitawar sa yana da kyau, har ma ana iya samun yadudduka a cikin zaren da ramukan makafi. A kauri daga cikin shafi ne 10 ~ 110μm, da kuma kuskure za a iya sarrafa a cikin 10%. Ƙarfin haɗinsa da aikin anti-lalata tare da substrate sune mafi kyau a tsakanin suturar zinc (electro-galvanizing, hot- tsoma galvanizing da dacromet). Tsarin sarrafa shi ba shi da gurɓatacce kuma mafi kyawun muhalli. Idan ba mu yi la'akari da chromium da kariyar muhalli ba, a zahiri shine mafi dacewa ga masu ɗaukar ƙarfi masu ƙarfi tare da buƙatun hana lalata.
Babban maƙasudin jiyya na farfajiyar na'urar shine don sa masu ɗaure su sami ikon hana lalata, ta yadda za a ƙara dogaro da daidaitawa na fasteners.
Lokacin aikawa: Dec-08-2022