Domin dunƙule fasteners samar, surface jiyya ne mai tsari tare da makawa, da yawa dillalai a tambaya game da dunƙule fasteners, hanyar da surface jiyya, da misali cibiyar sadarwa bisa ga taƙaitaccen bayani game da surface na dunƙule fasteners na kowa aiki hanyoyin akwai takwas iri. na siffofin, kamar: baki (blue), phosphating, zafi tsoma zinc, dacromet, Electric galvanized, Chrome plating, nickel da zinc impregnation.Matsakaicin yanayin dunƙule saman jiyya shine ta hanyar wata hanya don samar da murfin rufewa a saman kayan aikin, manufar sa shine sanya saman samfurin yayi kyau, tasirin lalata.
Hanyoyi takwas na jiyya na sama don sukurori:
1, Baki (blue)
Abubuwan da za a bi da su tare da baƙar fata an sanya su a cikin tanki mai warwarewa (145 ± 5 ℃) na sodium hydroxide (NaOH) da sodium nitrite (NaNO2) dumama da iskar shaka oxidant, saman fasinja na ƙarfe ya haifar da Layer na Magnetic Fe3O4 (Fe3O4). ) fim, kauri gabaɗaya 0.6 - 0.8μm baki ko shuɗi.Dukansu HG/20613-2009 da HG/T20634-2009 ka'idojin don fasteners amfani a matsa lamba tasoshin bukatar blue aiki.
2, Fitar
Phosphating wani tsari ne na samar da fim ɗin musayar sinadarai na phosphate ta hanyar sinadarai da halayen lantarki.Ana kiran fim ɗin phosphating fim ɗin.Manufar phosphating shine don samar da kariya ga karfen tushe da kuma hana ƙarfe daga lalacewa zuwa wani matsayi.An yi amfani da shi azaman firamare kafin zanen don inganta mannewa da juriya na lalata fim ɗin fenti;Ana iya amfani da shi don rage gogayya da lubrication a cikin tsarin aikin sanyi na ƙarfe.Ma'auni don babban diamita ninki biyu - ƙwanƙwasa masu kai don tasoshin matsa lamba yana buƙatar phosphating.
3, Hot tsoma galvanizing
Hot tutiya tsoma shi ne don nutsad da karfe memba bayan tsatsa cire a cikin zinc bayani narke a high zafin jiki a game da 600 ℃, sabõda haka, surface na karfe memba yana a haɗe da tutiya Layer.Kauri daga cikin tutiya Layer kada ya zama kasa da 65μm ga bakin ciki farantin kasa da 5mm, kuma ba kasa da 86μm ga lokacin farin ciki farantin 5mm da sama.Don haka kunna manufar rigakafin lalata.
4. Dacroll
DACROMET fassarar DACROMET ce kuma gajarta, DACROMET, DACROMET tsatsa, Dicron.Yana da wani sabon anticorrosive shafi tare da zinc foda, aluminum foda, chromic acid da deionized ruwa a matsayin babban aka gyara.Babu matsalar embrittlement hydrogen, kuma karfin juyi-preload daidaito yana da kyau sosai.Idan ba a yi la'akari da kariyar muhalli na hexavalent chromium ba, a zahiri ya fi dacewa da babban ƙarfin ƙarfi tare da buƙatun anticorrosion.
5, Electric galvanizing
Electrogalvanizing, kuma aka sani da sanyi galvanizing a cikin masana'antu, shi ne aiwatar da yin amfani da electrolysis samar da uniform, m da kuma da-hade karfe ko gami shaida Layer a saman da workpiece.Idan aka kwatanta da sauran karafa, zinc yana da arha kuma yana da sauƙin suturar ƙarfe, ƙarancin ƙima mai juriya na electroplating, ana amfani da shi sosai don kare sassan ƙarfe, musamman daga lalatawar yanayi, kuma ana amfani dashi don ado.Dabarun gyare-gyare sun haɗa da plating (ko rataye plating), yi plating (dace da ƙananan sassa), blue plating, atomatik plating da ci gaba da plating (dace da waya, tsiri).
Electrogalvanizing shine rufin da aka fi amfani dashi don kayan haɗin kasuwanci.Yana da arha kuma mafi kyawun kyan gani, kuma yana iya zuwa cikin baki ko soja kore.Duk da haka, aikin anticorrosion na gabaɗaya, aikin anticorrosion shine mafi ƙanƙanta a Layer plating (shafi).Janar electrogalvanizing tsaka tsaki gwajin gishiri a cikin 72 hours, akwai kuma yin amfani da musamman sealant, yin tsaka tsaki gishiri gwajin fiye da 200 hours, amma farashin ne tsada, shi ne 5 ~ 8 sau na general galvanizing.
Fasteners don sassa na tsarin gabaɗaya masu launin zinc da farin zinc, kamar ƙwanƙwasa darajar kasuwanci 8.8.
6, Chrome ya rufe
Chrome plating ne yafi inganta surface taurin, kyau, tsatsa rigakafin.Chromium plating yana da kyakkyawan kwanciyar hankali na sinadarai kuma baya amsawa a cikin alkali, sulfide, nitric acid da yawancin acid Organic, amma yana narkewa a cikin hydrohalic acid (kamar hydrochloric acid) da kuma sulfuric acid mai zafi.Chromium ya fi azurfa da nickel saboda baya canza launi kuma yana riƙe da hangen nesa na dogon lokaci idan aka yi amfani da shi.
7, nickel plating
Nikel plating yafi lalacewa, anti-lalata, anti-tsatsa, gabaɗaya bakin ciki kauri na tsari ya kasu kashi electroplating da sinadaran biyu Categories.
8, Zinc impregnation
Ka'idar fasahar zincizing foda ita ce sanya wakili na zincizing da baƙin ƙarfe da sassan ƙarfe a cikin tanderun zincizing da zafi zuwa kusan 400 ℃, kuma atom ɗin zinc ɗin da ke aiki za su kutsa cikin ƙarfe da ƙarfe daga waje zuwa ciki.A lokaci guda kuma, ƙwayoyin ƙarfe suna bazuwa daga ciki zuwa waje, wanda ke samar da sinadarin zinc-iron intermetallic fili, ko murfin zinc, a saman sassan ƙarfe.
Lokacin aikawa: Oktoba-30-2021