Cov Khoom Qhia
Lub raj kub-dip galvanized tau txais los ntawm kev ua kom cov hlau tsis muaj hlau nrog cov hlau sib txuas los tsim cov hlau txheej, yog li sib txuas cov txheej thiab txheej plating. Kub-dip galvanizing yog khaws cov hlau yeeb nkab ua ntej, txhawm rau tshem cov hlau oxide rau saum npoo ntawm cov yeeb nkab steel, tom qab pickling, nws raug ntxuav los ntawm ammonium chloride lossis zinc chloride aqueous tov los yog cov tshuaj sib xyaw aqueous ntawm ammonium chloride thiab zinc chloride, thiab tom qab ntawd pub. Kub lub plhaw plating tank. Kub-dip galvanizing muaj qhov zoo ntawm cov plating uniform, muaj zog adhesion thiab kev pab lub neej ntev. Cov yeeb nkab steel matrix thiab molten plating daws yauv ua rau lub cev thiab tshuaj lom neeg cov tshuaj lom neeg los ua qhov chaw tiv thaiv kev txhim kho ntawm zinc-hlau alloy txheej. Cov alloy txheej yog ua ke nrog cov ntshiab zinc txheej thiab cov steel yeeb nkab puag. Yog li ntawd, nws txoj kev txhim kho corrosion yog qhov muaj zog.
Thov
Tam sim no, cov hlau yeeb siv los siv roj, tsev cog khoom thiab cua sov kuj yog cov yeeb nkab galvanized. Cov yeeb nkab galvanized yog siv los ua cov yeeb nkab dej. Qhov ntau npaum li cas ntawm xeb yog tsim tawm hauv cov yeeb nkab. Cov dej daj ntws tawm tsis zoo xwb tsis ua rau cov khoom qias neeg huv, tab sis kuj muaj cov kab mob uas loj hlob ntawm sab phab ntsa tsis sib luag, ua rau xeb hauv cov dej. Cov ntsiab lus hnyav hlau yog siab dhau, uas tiag tiag cuam tshuam rau kev noj qab haus huv ntawm tib neeg lub cev. Hauv lub sijhawm xyoo 1960 thiab 1970, cov teb chaws tsim nyob hauv ntiaj teb tau pib tsim cov kav dej tshiab thiab txwv cov kav dej galvanized. Lub Tsev Haujlwm Saib Xyuas Kev Tsim Kho thiab lwm plaub lub tsev haujlwm thiab cov haujlwm tau tshaj tawm tsab ntawv qhia meej tias cov kav dej galvanized yuav raug txwv txij li xyoo 2000. Tam sim no, cov kav dej galvanized tsis tshua muaj siv hauv cov kav dej txias hauv thaj chaw tshiab. Qee lub hauv paus tsev kawm siv cov kav dej rau cov kav dej kub.
Tshuab Yuav Tsum Tau
1, hom tshuaj thiab tshuaj lom neeg
Cov qib thiab tshuaj lom neeg ntawm cov hlau rau cov yeeb nkab galvanized steel yuav tsum ua raws li qib thiab tshuaj lom neeg ntawm cov hlau rau cov yeeb nkab dub uas tau teev nyob hauv GB 3092.
2, kev tsim khoom
Cov txheej txheem kev tsim tawm ntawm lub raj dub (cua sov vuam lossis tshuab xaim hluav taws xob) yog xaiv los ntawm cov neeg tsim khoom. Galvanizing yog ua los ntawm kub dip galvanizing.
3, xov thiab cov kav hlau sib koom ua ke
3.1 Galvanized steel kav nrog xov xa, xov yuav tsum tau ua tom qab galvanizing. Threads yuav tsum ua raws li cov cai ntawm YB 822.
3.2 Cov tog raj xa hlau yuav tsum ua raws li cov lus ntawm YB 238; malleable cam khwb cia hlau yeeb nkab sib txuas yuav tsum ua raws li cov kev cai ntawm YB 230.
4. Cov cuab yeej muaj zog Cov khoom siv kho tshuab ntawm cov kav hlau ua ntej galvanizing yuav tsum ua raws li cov kev cai ntawm GB 3092.
5. Kev tsis sib thooj ntawm cov ntawv galvanized txheej Cov yeeb nkab galvanized steel yuav tsum tau sim rau qhov sib txawv ntawm cov txheej galvanized. Lub pas hlau yeeb nkab qauv yuav tsum tsis txhob txo cov xim liab (tooj liab plating) los ntawm kev nqus nws txuas nrog tooj liab sulfate rau 5 zaug.
6. Kev kuaj txias txias Lub tshuab raj galvanized steel nrog txoj kab uas hla tsis dhau 50 hli yuav tsum tau kuaj rau qhov dabtsi yog khoov txias. Lub kaum sab xis khoov yog 90 ° thiab khoov vojvoog yog 8 zaug ntawm txoj kab uas hla. Qhov ntsuas yuav tsum tau nqa tawm yam tsis muaj qhov muab tub lim thiab qhov quav ntawm qhov quav yuav tsum tso rau sab nraud lossis ntu qaum ntawm qhov khoov qhov kev taw qhia. Tom qab ntsuas, yuav tsum tsis muaj kab nrib pleb hauv tus qauv thiab qhov tshwm sim tib yam li cov zinc txheej tev tawm.
7. Kev Ntsuas Cov Kev Ntsuas Hydrostatic Kev ntsuas hydrostatic yuav tsum tau nqa tawm hauv lub taub qij dub, lossis qhov ntsuas ntawm qhov ntsuas tam sim no yuav raug siv hloov qhov ntsuas hydrostatic. Kev ntsuas qhov ntsuas lossis ntsuas qhov ntsuas tam sim no sib piv ntawm qhov loj me yuav tsum ua tau raws li GB 3092.
Cov cuab yeej muaj zog ntawm cov hlau yog qhov ntsuas tseem ceeb kom ntseeg tau tias qhov kawg ntawm kev ua tau (cov cuab yeej lub zog) ntawm cov hlau, uas yog nyob ntawm cov tshuaj lom neeg muaj pes tsawg leeg ntawm cov hlau thiab kev kho cua sov. Hauv cov yeeb nkab steel tus qauv, tensile yam ntxwv (tensile lub zog, lub zog tawm los lossis tawm qhov taw tes, elongation), qhov nyuaj thiab qhov nyuaj qhov ntsuas, thiab qhov siab thiab tsis kub muaj cov yam ntxwv xav tau los ntawm cov neeg siv tau teev tseg raws li kev siv sib txawv.
Cim npe nrov: kub dipped gi steel yeeb nkab rau laj kab khoom, ua nyob rau hauv Suav teb, tuam ntxhab, cov chaw muag khoom
