Galvanized welded yeeb nkab
Txhawm rau txhim kho corrosion kuj ntawm cov kav hlau, cov kav hlau dav dav yog galvanized. Galvanized steel kav muab faib ua ob hom: kub-dip galvanizing thiab electro-galvanizing. Cov txheej kub-dip galvanizing yog tuab, tus nqi ntawm electro-galvanizing yog tsawg, thiab qhov saum npoo tsis du heev.
Oxygen-blowing welded yeeb nkab: Siv los ua cov hlau ua cov pa oxygen tshuab, feem ntau me me-inch welded steel kav, nrog yim qhov tshwj xeeb xws li 3/8 txog 2 ntiv tes. Nws yog tsim los ntawm 08, 10, 15, 20 lossis 195-Q235 steel sawb, txhawm rau tiv thaiv corrosion, nws yog ib qho tsim nyog yuav tsum tau ua cov kev kho aluminizing.
Cov tsev qub feem ntau siv cov kav dej galvanized. Cov kav hlau siv rau roj thiab cua sov kuj yog cov kav dej galvanized. Galvanized kav yog siv los ua cov kav dej. Tom qab ob peb xyoos ntawm kev siv, ntau cov xeb thiab av tau tsim nyob rau hauv cov kav dej, thiab cov dej daj uas ntws tawm tsis tsuas yog ua rau cov khoom huv si. , Thiab sib xyaw nrog cov kab mob uas yug ntawm cov phab ntsa sab hauv tsis sib xws, xeb ua rau cov hlau hnyav hnyav hauv dej, uas ua rau muaj kev phom sij rau tib neeg kev noj qab haus huv. Nyob rau xyoo 1960 thiab 1970, cov teb chaws tsim kho hauv ntiaj teb tau pib tsim cov kav dej tshiab thiab maj mam txwv cov kav dej galvanized. Plaub lub tuam tsev thiab cov thawj coj suav nrog Ministry of Construction ntawm Tuam Tshoj kuj tau tshaj tawm cov ntaub ntawv qhia meej tias cov kav dej galvanized tau raug txwv txij li xyoo 2000 mus txog. Cov kav dej galvanized tsis tshua muaj siv rau cov kav dej txias hauv cov zej zog tshiab tom qab xyoo 2000, thiab cov kav dej galvanized tau siv rau cov kav dej kub hauv qee cov zej zog.
Nominal phab ntsa thickness mm 2.0 2.5 2.8 3.2 3.5 3.8 4.0 4.5
Galvanized steel kav muab faib ua cov kav dej txias galvanized thiab kub-dip galvanized kav. Cov qub tau raug txwv, thiab tom kawg tau raug txhawb los ntawm lub xeev kom siv tau ib ntus.
Kub-dip galvanized yeeb nkab
Cov yeeb nkab kub-dip galvanized yog ua kom cov hlau molten thiab cov hlau matrix hnov mob los tsim cov txheej txheem alloy, kom cov matrix thiab cov txheej sib xyaw ua ke. Kub-dip galvanizing yog xaiv cov yeeb nkab steel ua ntej. Txhawm rau tshem tawm cov hlau oxide nyob rau saum npoo ntawm cov yeeb nkab steel, tom qab lub pickling, nws yog ntxuav nyob rau hauv lub tank ntawm ammonium chloride los yog zinc chloride aqueous tov los yog ib tug tov aqueous tov ntawm ammonium chloride thiab zinc chloride, thiab ces xa mus rau hauv. kub dip plating tank. Kub-dip galvanizing muaj qhov zoo ntawm txheej txheej, muaj zog adhesion thiab lub neej ua haujlwm ntev.
Cold galvanized yeeb nkab
Txias galvanizing yog electro-galvanizing, thiab tus nqi ntawm galvanizing yog heev me me, tsuas yog 10-50g / m2, thiab nws cov corrosion kuj yog ntau phem dua li kub-dip galvanized kav. Feem ntau ntawm cov kav dej galvanized tsis tu ncua tsis siv electro-galvanized (txias plating) thiaj li ua kom zoo. Tsuas yog cov tuam txhab me me nrog cov nplai me me thiab cov cuab yeej siv tsis tu ncua siv electro-galvanization, thiab tau kawg lawv cov nqi kuj pheej yig dua. Lub Tsev Haujlwm Saib Xyuas Kev Tsim Kho tau tshaj tawm tias cov kav dej txias-galvanized nrog cov thev naus laus zis tsis tu ncua yuav tsum raug tshem tawm, thiab cov kav dej txias-galvanized yuav tsis raug tso cai siv los ua cov kav dej thiab roj rau yav tom ntej.
Kub-dip galvanized steel yeeb nkab: Cov yeeb nkab steel matrix tau dhau los ua lub cev thiab tshuaj lom neeg cov tshuaj tiv thaiv nrog cov tshuaj molten plating los tsim cov txheej txheem corrosion-resistant zinc-hlau alloy nrog cov qauv compact. Cov txheej txheej alloy yog kev sib xyaw nrog cov zinc txheej ntshiab thiab cov yeeb nkab steel matrix. Yog li ntawd, nws cov corrosion kuj muaj zog.
Cold galvanized steel yeeb nkab:Zinc txheej yog txheej txheej electroplated, thiab zinc txheej thiab steel yeeb nkab substrate yog txheej ntawm nws tus kheej. Cov zinc txheej yog nyias, thiab cov zinc txheej tsuas yog ua raws li cov yeeb nkab steel substrate thiab yooj yim poob tawm. Yog li ntawd, nws cov corrosion kuj tsis zoo. Hauv cov tsev tshiab tsim, nws yog txwv tsis pub siv cov kav dej txias galvanized ua cov kav dej.
Cov txheej txheem ntau lawm ntawm stainless hlau muaj cov kauj ruam hauv qab no:
ib. Round steel npaj; b. Cua sov; c. Kub dov piercing; d. Txiav lub taub hau; e. Pickling; f. Sib tsoo; g. Lubrication; h. Txias Rolling processing; i. Degreasing; j. Kev kho cua sov; k. Ncaj nraim; l. Txiav lub raj; m. Pickling; n. Cov khoom kuaj.
Tsuas yog muab cov txheej txheem dav dav, thiab cov ncauj lus kom ntxaws ntxiv muaj nyob hauv cov lus zais ntawm txhua tus neeg tsim khoom
1. Hom thiab tshuaj muaj pes tsawg leeg
Qib thiab tshuaj muaj pes tsawg leeg ntawm cov hlau rau galvanized steel kav yuav tsum ua raws li qib thiab tshuaj muaj pes tsawg leeg ntawm cov hlau rau cov kav dej dub tau teev tseg hauv GB 3092.
2. Txoj kev tsim khoom
Txoj kev tsim khoom ntawm cov yeeb nkab dub (qhov cub vuam lossis hluav taws xob vuam) yog xaiv los ntawm cov chaw tsim khoom. Kub-dip galvanizing yog siv rau galvanizing.
3. Xov thiab cov yeeb nkab txuas
3.1 Rau galvanized steel kav xa nrog threads, threads yuav tsum tau machined tom qab galvanizing. Cov xov yuav tsum ua raws li YB 822 cov cai.
3.2 Steel yeeb nkab pob qij txha yuav tsum ua raws li YB 238; malleable cam khwb cia hlau yeeb nkab pob qij txha yuav tsum ua raws li YB 230.
4. Cov khoom siv kho tshuab Cov khoom siv ntawm cov kav hlau steel ua ntej galvanizing yuav tsum ua tau raws li qhov yuav tsum tau ua ntawm GB 3092.
5. Lub uniformity ntawm galvanized txheej galvanized steel yeeb nkab yuav tsum tau kuaj rau cov uniformity ntawm galvanized txheej. Cov yeeb nkab steel qauv yuav tsum tsis txhob tig liab (tooj liab xim) tom qab muab tso rau hauv tooj liab sulfate tov rau 5 zaug sib law liag.
6. Cold khoov xeem Lub galvanized steel yeeb nkab nrog lub nominal txoj kab uas hla ntawm tsis ntau tshaj 50mm yuav tsum tau mus rau ib tug txias khoov xeem. Lub kaum sab xis yog 90 °, thiab lub vojvoog khoov yog 8 npaug ntawm txoj kab uas hla. Tsis muaj qhov muab tub lim thaum lub sijhawm kuaj, thiab qhov vuam ntawm cov qauv yuav tsum muab tso rau sab nraud lossis sab sauv ntawm txoj kev khoov. Tom qab kev sim, yuav tsum tsis txhob muaj kab nrib pleb thiab tev ntawm zinc txheej ntawm cov qauv.
7. Kev ntsuas dej siab Kev ntsuas dej siab yuav tsum tau ua nyob rau hauv lub clarinet. Eddy tam sim no qhov teeb meem nrhiav pom kuj tuaj yeem siv los ntawm kev ntsuas dej siab. Kev ntsuas siab lossis qhov loj ntawm qhov piv txwv piv rau kev ntsuas tam sim no yuav tsum ua tau raws li qhov xav tau ntawm GB 3092.
