Tag: hmoov txheej pretreatment
Filiform corrosion yog tshwm sim feem ntau ntawm txhuas
Filiform corrosion yog tshwj xeeb ntawm corrosion tshwm sim feem ntau ntawm txhuas. Qhov tshwm sim zoo li tus kab mob nkag mus rau hauv qab txheej, ib txwm pib los ntawm kev txiav ntug lossis kev puas tsuaj hauv txheej. Filiform corrosion tsim tau yooj yim thaum cov khoom coated raug rau ntsev ua ke nrog kub 30/40 ° C thiab txheeb ze av noo 60-90%. Qhov teeb meem no yog vim li no txwv rau thaj chaw ntug dej hiav txwv thiab txuas nrog kev tsis muaj hmoo ua ke ntawm aluminium alloys thiab kev kho ua ntej. Yuav kom txo qis filiform corrosions nws yog qhia kom paub meejNyeem ntxiv…
Kev npaj tshuaj deg ua ntej hmoov txheej
Chemical Surface Preparation Daim ntawv thov tshwj xeeb muaj feem cuam tshuam nrog qhov xwm txheej ntawm qhov chaw raug ntxuav thiab qhov xwm txheej ntawm kev sib kis. Feem ntau qhov chaw hmoov coated tom qab ntxuav yog galvanized steel, steel, los yog txhuas. Txij li tsis yog txhua yam kev npaj tshuaj lom neeg muaj feem xyuam rau tag nrho cov ntaub ntawv no, cov txheej txheem npaj tau xaiv nyob ntawm cov khoom siv substrate. Rau txhua yam khoom siv, hom kev tu yuav raug tham thiab nws cov yam ntxwv tshwj xeeb rau lub substrate yuav raug piav qhia. Cov txheej txheem thov tshwj xeeb yog heevNyeem ntxiv…
Conversion Txheej ntawm Galvanized Steel
Hlau phosphates los yog cov khoom ntxuav-coater tsim me me los yog tsis-detectable conversion txheej ntawm zinc nto. Ntau cov kab hlau sib txuas siv cov hlau phosphates hloov kho uas muaj kev tu, thiab tawm hauv micro-chemical etch ntawm zinc substrates los muab cov khoom adhesion. Ntau lub nroog thiab xeev tam sim no muaj kev txwv rau zinc PPMs, yuam cov hlau tiav los muab kev kho mob ntawm cov kev daws teeb meem uas zinc substrates tau ua tiav. Lub zinc phosphate hloov dua siab tshiab txheej yog, kab tias, cov txheej txheem zoo tshaj plaws uas tuaj yeem ua rau ntawm qhov chaw galvanized. RauNyeem ntxiv…
Cov lus txhais rau kev faib tawm corrosion
Raws li kev pab hauv kev nrhiav cov kev cai dab tsi yuav tsum tau ua rau kev kho mob ua ntej, peb tuaj yeem txhais cov kev faib tawm sib txawv: Corrosion Class 0 Hauv tsev nrog cov av noo tshaj 60% Tsawg heev corrosion txaus ntshai (kev txhoj puab heev) CORROSION CLASS 1 Sab hauv tsev hauv qhov tsis muaj cua sov, qhov cua zoo. chav Me ntsis kev pheej hmoo corrosion (aggressivity) Corrosion Class 2 Nyob sab hauv tsev nrog kub thiab av noo. Sab nraum zoov hauv kev nyab xeeb hauv av, deb ntawm hiav txwv thiab kev lag luam. Medium corrosion txaus ntshai (kev txhoj puab heev) CORROSION CLASS 3 Nyob rau hauv cov cheeb tsam uas muaj neeg coob lossis ze rau thaj chaw muaj kev lag luam. Saum cov dej qhibNyeem ntxiv…
Phosphate Coatings Pretreatment rau Steel Substrates
Phosphate Coatings Pretreatment for Steel Substrates Kev lees paub ua ntej kev kho mob rau steel substrates ua ntej siv cov hmoov yog phosphating uas tuaj yeem sib txawv hauv qhov hnyav txheej. Qhov ntau dua qhov kev hloov pauv txheej hnyav qhov ntau dua qhov kev tiv thaiv corrosion ua tiav; qhov qis txheej txheej hnyav qhov zoo dua cov khoom siv kho tshuab. Yog li ntawd, nws yog ib qho tsim nyog los xaiv ib qho kev sib haum xeeb ntawm cov khoom siv kho tshuab thiab kev tiv thaiv corrosion. Cov phosphate txheej hnyav hnyav tuaj yeem ua rau muaj teeb meem nrog cov hmoov txheej hauv cov khoom siv lead ua tawg tuaj yeem tshwm simNyeem ntxiv…
Alkaline Acid Cleaners ntawm CLEANING ALUMINIUM
Cov ntxhua khaub ncaws ntawm CLEANING ALUMINIUM Alkaline Cleaners Alkaline cleaners rau txhuas sib txawv ntawm cov siv hlau; lawv feem ntau muaj ib qho kev sib xyaw ntawm cov ntsev me me alkaline kom tsis txhob tawm tsam cov txhuas nto. Qee zaum, me me mus rau nruab nrab ntawm cov dawb caustic soda tej zaum yuav muaj nyob rau hauv lub tshuab ntxhua khaub ncaws kom tshem tawm cov av nyuaj, los yog muab ib qho kev xav tau. Nyob rau hauv lub hwj chim tshuaj tsuag txoj kev ntawm daim ntawv thov, qhov chaw yuav tsum tau ntxuav yog tshem tawm nyob rau hauv ib tug qhov av thaum lub sij hawm ntxuav.Nyeem ntxiv…
Xim Tshem Tawm, Yuav Tshem Tawm Xim Li Cas
Yuav Ua Li Cas Tshem Tawm Cov Xim Thaum rov ua dua ib feem, ua ntej siv cov xim tshiab lub tsho qub, xim feem ntau yuav tsum tau muab tshem tawm. Kev ntsuam xyuas txo cov pov tseg yuav tsum pib los ntawm kev tshuaj xyuas qhov ua rau qhov xav tau ntawm kev pleev xim rov qab: qhov kev npaj ua ntej tsis txaus; tsis zoo nyob rau hauv daim ntawv thov txheej; teeb meem khoom siv; los yog txheej puas vim kev tuav tsis raug. Txawm hais tias tsis muaj txheej txheem zoo tag nrho, txo qhov xav tau ntawm repainting muaj qhov cuam tshuam ncaj qha rau lub ntim ntawm cov khib nyiab tsim los ntawm kev tshem tawm cov xim. Ib zaug xav tau ximNyeem ntxiv…
Hom Phosphate kho rau hmoov txheej
Hom Phosphate kho rau hmoov txheej Hlau phosphate Kev kho mob nrog hlau phosphate (feem ntau hu ua nyias txheej phosphating) muab cov khoom adhesion zoo heev thiab tsis muaj qhov tsis zoo hauv cov khoom siv ntawm cov hmoov txheej. Hlau phosphate muab kev tiv thaiv corrosion zoo rau kev cuam tshuam hauv cov chav kawm qis thiab nruab nrab corrosion, txawm tias nws tsis tuaj yeem sib tw nrog zinc phosphate hauv qhov kev hwm no. Hlau phosphate tuaj yeem siv tau rau hauv cov tshuaj tsuag lossis cov chaw da dej. Tus naj npawb ntawm cov kauj ruam hauv tus txheej txheem yuavNyeem ntxiv…
Chromate txheej rau aluminium nto
Aluminium thiab aluminium alloys yog kho los ntawm corrosion resistant conversion txheej uas hu ua "chromate txheej" los yog "chromating". General txoj kev yog los ntxuav cov txhuas saum npoo thiab tom qab ntawd siv cov acidic chromium muaj pes tsawg leeg ntawm qhov huv si. Chromium hloov dua siab tshiab coatings yog heev corrosion resistant thiab muab zoo heev tuav ntawm cov txheej tom ntej. Cov txheej txheem sib txawv ntawm cov txheej txheem tom ntej tuaj yeem siv rau cov txheej txheem hloov pauv chromate kom tsim tau qhov chaw txaus. Qhov peb hu ua phosphating rau steel hlau yogNyeem ntxiv…
Yuav tsum tau rau hmoov txheej tshaj kub dip galvanizing
Cov lus qhia hauv qab no tau pom zoo: Siv zinc phosphate pretreatment yog tias xav tau kev ua kom siab tshaj plaws. Nto yuav tsum huv si zoo kawg nkaus. Zinc phosphate tsis muaj tshuaj ntxuav tes thiab yuav tsis tshem cov roj lossis av. Siv hlau phosphate yog tias xav tau kev ua tau zoo. Hlau phosphate muaj cov tshuaj ntxuav me ntsis thiab yuav tshem tawm cov kab mob me me. Qhov zoo tshaj plaws siv rau pre-galvanized khoom. Pre-heat ua hauj lwm ua ntej daim ntawv thov hmoov. Siv 'degassing' qib polyester hmoov txheej nkaus xwb. Xyuas kom raug kho los ntawm cov kuab tshuajNyeem ntxiv…
Phosphating conversion txheej
Kev lees paub ua ntej kev kho mob rau steel substrates ua ntej siv cov hmoov txheej yog phosphating uas tuaj yeem sib txawv hauv qhov hnyav. Qhov ntau dua qhov hloov dua siab tshiab txheej hnyav qhov ntau dua qhov kev tiv thaiv corrosion ua tiav; qhov qis txheej txheej hnyav qhov zoo dua cov khoom siv kho tshuab. Yog li ntawd, nws yog ib qho tsim nyog los xaiv ib qho kev sib haum xeeb ntawm cov khoom siv kho tshuab thiab kev tiv thaiv corrosion. High phosphate txheej hnyav tuaj yeem ua rau muaj teeb meem nrog cov hmoov txheej hauv cov khoom siv lead ua tawg tuaj yeem tshwm sim thaum txheej txheej raug.Nyeem ntxiv…