Corrosion kuj ntawm galvanized steel yeeb nkab hauv Suav teb
Vim tias qhov kub-dip galvanized seamless steel yeeb nkab yog kub-dip galvanized, tus nqi ntawm galvanized yog siab heev. Qhov nruab nrab thickness ntawm galvanized txheej yog ntau tshaj 65 microns, thiab nws cov corrosion kuj yog ntau txawv los ntawm kub-dip galvanized yeeb nkab. Cov kav dej galvanized tsis tu ncua tau tso cai siv cov kav dej txias galvanized ua cov kav dej thiab cov kav dej. galvanized txheej ntawm txias galvanized steel yeeb nkab yog txheej txheej electroplating, thiab zinc txheej yog sib cais los ntawm cov yeeb nkab steel substrate. Cov zinc txheej yog nyias, thiab cov zinc txheej tsuas yog txuas nrog cov yeeb nkab steel matrix, uas yooj yim rau poob. Yog li ntawd, nws cov corrosion kuj tsis zoo. Hauv cov tsev tshiab, nws yog txwv tsis pub siv cov kav dej txias galvanized steel kav dej. Tom qab pickling, API seamless steel kav yog ntxuav nyob rau hauv ammonium chloride los yog zinc chloride aqueous tov los yog ammonium chloride thiab zinc chloride tov aqueous tov tank. Txhawm rau kom ua tau zoo, electro galvanizing (txias plating) feem ntau tsis siv. Tsuas yog cov tuam txhab me me nrog cov nplai me me thiab cov khoom qub siv electro galvanizing, tau kawg, lawv cov nqi kuj pheej yig. Lub Tsev Haujlwm Saib Xyuas Kev Tsim Kho tau raug tshem tawm cov yeeb nkab rov qab txias galvanized, uas yuav tsis raug electro galvanized yav tom ntej. Nws yog ua kom cov hlau molten hnov mob nrog cov hlau matrix los tsim cov txheej txheem alloy, thiaj li ua ke cov matrix thiab txheej. Kub dip galvanizing yog khaws cov yeeb nkab steel ua ntej, txhawm rau tshem tawm cov hlau oxide ntawm cov yeeb nkab steel, thiab tom qab ntawd xa mus rau lub tank kub dip galvanizing. Kub dip galvanizing muaj qhov zoo ntawm cov txheej txheej, muaj zog adhesion thiab lub neej ua haujlwm ntev. 1. Medium phaj chav tsev: nws tsuas yog tsim dav thiab tuab daim hlau rau zus tau tej cov longitudinal submerged arc welded kav. Lub longitudinal submerged arc welded kav yog txhim khu kev qha zoo thiab yog dav siv nyob rau hauv lub ntsiab kab ntawm roj thiab roj high-pressure kis tau tus mob.
Steckel Mill:Steckel zeb muaj xws li ib tug reciprocating roughing zeb thiab ib tug 4-siab reciprocating finishing zeb. Ob qhov kub coil mills yog ntsia rau ntawm cov kab conveyor ntawm ob sab ntawm lub tshuab tiav. Cov lus tso zis ntau lawm feem ntau suav nrog lub laminar txias system thiab coiling chaw nres tsheb. Nyob rau hauv lub steckel zeb, lub thermomechanical keeb kwm ntawm tag nrho ntev ntawm stainless hlau stamping luj tshib yeeb nkab fittings hloov pauv loj, tshwj xeeb tshaj yog nyob rau hauv zus tau tej cov micro stainless hlau stamping luj tshib yeeb nkab fittings, uas yuav muaj kev cuam tshuam rau recrystallization degree, grain loj hlob thiab nag lossis daus ntawm cov xov. zeb, thiab ua rau muaj kev hloov pauv loj hauv qhov kawg microstructure thiab cov khoom ntawm tag nrho ntev ntawm stainless hlau stamping luj tshib yeeb nkab fittings
Semi-nruam zeb:suav nrog 1 Steckel zeb thiab 5 lub tshuab tiav. Nyob rau hauv ib lub semi nruam dov zeb, qhov kub dov ntawm cov yeeb nkab fittings nyob rau hauv tiav passes yog qhov tseem ceeb tas li ntawm ib kawg mus rau lwm qhov. Lub sijhawm nruab nrab ntawm kev hla ntawm lub tshuab tiav yog feem ntau tsawg dua 3S.
CSP nruam casting thiab dov:rau cov pa roj carbon tsawg manganese hlau uas muaj niobium, vanadium thiab titanium composite Microalloying ntawm CSP cov kab ntau lawm, tsim nyog tswj dov, tswj cua txias thiab coiling txheej txheem tuaj yeem xyuas kom meej tias cov khoom siv kho tshuab thiab microstructure ntawm cov yeeb nkab fittings ua tau raws li cov kev cai ntawm niaj hnub X60 stainless hlau stamping luj tshib thiab txoj kev loj hlob ntawm niaj hnub stainless hlau stamping luj tshib yeeb nkab fittings. Tuam Tshoj CSP nruam casting thiab dov ntau lawm kab tau tsim X60 stainless hlau stamping luj tshib fittings, thaum lwm CSP manufacturers nyob rau hauv lub tebchaws United States thiab txawv teb chaws tau tsim thiab tsim high-qib stainless hlau stamping luj tshib fittings X60, X65 thiab txawm X70. Cov txheej txheem feature yog tias muaj kev sib cais hauv nruab nrab hauv nruam casting nyias slab. Kev tshem tawm ntawm kev sib cais hauv nruab nrab hauv kev nruam casting nyias slab los ntawm galvanized seamless steel yeeb nkab yog qhov teeb meem tseem ceeb tshaj plaws los txhim kho qhov zoo ntawm stainless hlau stamping luj tshib fittings. Cov phaj siv rau stainless hlau stamping luj tshib feem ntau yog siv A3 thiab 16Mn ua los ntawm Angang thiab lwm cov tuam ntxhab hauv xyoo 1960 thiab 1970s. Nrog rau qhov nce ntawm cov yeeb nkab txoj kab uas hla thiab kev sib kis siab, Lub zog ntawm cov yeeb nkab haum phaj tsis tuaj yeem ua tau raws li qhov yuav tsum tau ua. Tom qab xyoo 1980, tag nrho cov roj av welded yeeb nkab qhov chaw tsim khoom pib siv cov kav dej steel phaj ua raws li American API cov qauv. Thaum lub sij hawm ntawd, vim tsis paub tab technology ntawm domestic stainless hlau stamping luj tshib phaj manufacturers, mas daim hlau mas siv.
