1. Tus qauv ntev ntawm carbon steel kav yog dab tsi?
Tus qauv ntev ntawm cov pa roj carbon steel kav sib txawv los ntawm kev tsim khoom thiab cov qauv, tab sis cov qauv ntev tshaj plaws yog: (1) Seamless carbon steel kav: Cov qauv ntev yog 6 meters (20 feet) lossis 12 meters (40 feet). Qee cov tuam ntxhab tuaj yeem tsim cov kav dej tsis sib haum nrog qhov ntev txog 18 meters raws li cov neeg siv khoom xav tau, tab sis lawv tsis tshua muaj. (2) Welded carbon steel kav: ERW kav feem ntau muaj qhov ntev ntawm 6 meters, 9 meters, lossis 12 meters. LSAW cov kav dej tuaj yeem tsim tau ntev dua (txog 18 meters lossis ntau dua) vim tias lawv yog ua los ntawm cov hlau phaj, uas tuaj yeem txiav mus rau qhov ntev ntev ua ntej vuam. (3) Ntev ntev: Carbon steel kav kuj tuaj yeem hloov kho rau qhov ntev raws li cov neeg siv khoom xav tau (xws li 3 meters, 15 meters, thiab lwm yam), tab sis qhov no yuav ua rau tus nqi tsim khoom thiab lub sijhawm ua haujlwm. Tus qauv ntev yog tsim los pab kev thauj mus los, khaws cia, thiab kev teeb tsa. Piv txwv li, 6-meter thiab 12-meter kav dej tuaj yeem thauj khoom yooj yim rau hauv cov tsheb thauj khoom thiab xa khoom, thiab tuaj yeem txiav mus rau qhov ntev ntawm qhov chaw thaum lub sijhawm teeb tsa.
2. Yuav ua li cas xaiv txoj cai carbon steel yeeb nkab rau ib daim ntawv thov tshwj xeeb?
Kev xaiv cov yeeb nkab carbon steel zoo yuav tsum tau xav txog ntau yam tseem ceeb: (1) Ua haujlwm siab thiab kub: Xaiv cov yeeb nkab uas muaj qhov ntsuas siab thiab qhov kub thiab txias uas haum rau kev ua haujlwm. Rau siab-siab, siab-kev siv kub, xaiv cov kav dej seamless (xws li ASTM A106 Qib B) lossis siab -lub zog welded kav (xws li API 5L X52). Rau qis- siab, qis- daim ntawv thov kub, xaiv ERW welded kav lossis cov kav dej dub carbon steel. (2) Kev Pabcuam Ib puag ncig: Yog tias cov yeeb nkab siv rau hauv ib puag ncig corrosive (xws li marine, tshuaj, lossis sab nraum zoov), xaiv cov kav dej galvanized lossis cov kav dej uas muaj cov tshuaj tiv thaiv corrosion. Rau qis- qhov kub thiab txias ib puag ncig, xaiv qis-kub carbon steel kav (xws li ASTM A333 Qib 6). (3) Kev lag luam kev lag luam: Rau kev lag luam roj thiab roj, xaiv API 5L kab kav. Rau cov dej thiab cov dej ntws, xaiv ASTM A53 ERW cov kav dej lossis cov kav dej galvanized. Rau kev lag luam tshuaj, xaiv cov kav dej uas muaj cov tshuaj tiv thaiv - cov coatings los yog cov kav hlau alloy. (4) Tus nqi: Sib npaug kev ua haujlwm thiab tus nqi. Seamless kav yog kim dua tab sis muaj kev ua tau zoo dua, thaum cov kav dej welded yog tus nqi ntau dua - siv tau rau kev siv dav dav. (5) Cov qauv thiab cov ntawv pov thawj: Xyuas kom cov yeeb nkab ua tau raws li cov qauv thoob ntiaj teb (xws li ASTM, API, EN) thiab cov ntawv pov thawj xav tau los ntawm kev lag luam (xws li ISO 9001, NSF / ANSI 61 rau cov dej haus).
3. Dab tsi yog qhov txawv ntawm kub-dip galvanizing thiab electro-galvanizing rau carbon steel kav?
Kub-dip galvanizing thiab electro-galvanizing yog ob txoj hauv kev galvanizing rau cov pa roj carbon steel kav, nrog rau qhov sib txawv hauv qab no: (1) Cov txheej txheem tsim khoom: Kub-dip galvanizing suav nrog immersing cov yeeb nkab hauv cov zinc da dej (kub txog 450 degree) los tsim cov zinc txheej. Electro-galvanizing suav nrog tso zinc rau ntawm cov yeeb nkab nto los ntawm cov txheej txheem electrolytic hauv zinc ntsev tov ntawm chav tsev kub. (2) Txheej thickness: Kub-dip galvanizing ua rau cov zinc txheej tuab (feem ntau yog 80 mus rau 150 μm), thaum electro{12}}galvanizing ua ib txheej nyias (feem ntau yog 10 mus rau 30 μm). (3) Corrosion resistance: Kub-dip galvanizing muaj corrosion kuj zoo dua vim cov txheej tuab, thiab zinc{18}} hlau alloy txheej tsim ntawm zinc txheej thiab steel puag muaj zog adhesion. Electro-galvanizing muaj zog corrosion kuj thiab yog haum rau sab hauv tsev lossis me me corrosive ib puag ncig. (4) Nto zoo: Electro-galvanizing muaj ib tug smoother, ntau yam saum npoo, thaum kub -dip galvanizing muaj ib tug me ntsis ntxhib nto nrog matte tiav. (5) Tus nqi: Kub-dip galvanizing yog kim dua li electro-galvanizing vim yog siv zog ntau dua thiab siv zinc ntau dua. (6) Daim ntawv thov: Kub-dip galvanizing yog tsim rau sab nraum zoov, marine, thiab hnyav corrosive ib puag ncig, thaum electro-galvanizing yog haum rau sab hauv tsev, qis-corrosion ib puag ncig xws li cov kav dej zoo nkauj thiab me me - txoj kab uas hla cov kav dej.
4. Cov kav dej carbon steel puas tuaj yeem siv dua?
Yog lawm, cov pa roj carbon steel kav yog cov khoom siv rov ua dua tshiab thiab yog ib qho ntawm cov khoom siv rov ua dua tshiab hauv ntiaj teb. Cov pa roj carbon steel yog cov hlau thiab cov pa roj carbon, thiab cov txheej txheem rov ua dua yuav cuam tshuam cov seem carbon steel kav hauv qhov cub tawg lossis hluav taws xob arc rauv, tshem tawm cov impurities (xws li phosphorus, sulfur), thiab rov ua dua rau hauv cov khoom siv hlau tshiab (xws li cov pa roj carbon steel tshiab, steel phaj, steel tuav, thiab lwm yam). Kev rov ua dua ntawm cov pa roj carbon steel kav muaj ntau qhov zoo: (1) Kev tiv thaiv ib puag ncig: Kev rov ua dua tshiab txo qhov kev xav tau ntawm cov hlau ore, uas txuag lub zog thiab txo cov pa hluav taws xob hauv tsev cog khoom. (2) Tus nqi-kev ua tau zoo: Cov khoom siv rov ua dua tshiab yog pheej yig dua li kev tsim cov hlau los ntawm cov khoom siv raw, uas txo cov nqi tsim khoom ntawm cov khoom siv hlau tshiab. (3) Kev txuag cov peev txheej: Hlau ore yog ib qho tsis yog- cov peev txheej txuas ntxiv, thiab kev rov ua dua tshiab pab txuas ntxiv nws lub neej kev pabcuam. Thaum rov ua dua cov kav dej carbon steel, nws yuav tsum tshem tawm cov khoom tsis yog{11}} hlau (xws li cov txheej yas, cov roj hmab hauv ob sab phlu) thiab ntxuav cov kav dej kom ntseeg tau tias cov hlau siv tau zoo. Feem ntau cov tuam txhab siv cov khoom siv rov ua dua tshiab tau txais cov pa roj carbon steel kav, thiab cov hlau rov ua dua tuaj yeem siv rau hauv ntau yam lag luam, suav nrog kev tsim kho, tsim khoom, thiab kev thauj mus los.
5. Dab tsi yog qhov kev ntim khoom thiab kev thauj mus los rau cov pa roj carbon steel kav?
Kev ntim khoom thiab kev thauj mus los ntawm cov kav dej carbon steel yog qhov tseem ceeb los tiv thaiv kev puas tsuaj thaum lub sijhawm thauj mus los. Cov txheej txheem ntim khoom muaj xws li: (1) Bundling: Rau me me - cov kav dej me me (DN10 txog DN100), ntim lawv nrog cov hlua hlau lossis cov hlua yas, feem ntau yog 5 mus rau 10 kav ib pob, thiab ntxiv lub tes tsho tiv thaiv ntawm qhov kawg kom tiv thaiv kev puas tsuaj rau cov yeeb nkab kawg. (2) Ntoo crates: Rau cov kav dej muaj tseeb (xws li txias -cov kav dej tsis sib haum) lossis cov kav dej me me, ntim rau hauv cov thawv ntoo los tiv thaiv lawv los ntawm kev cuam tshuam thiab ya raws. (3) Anti-corrosion ntim: Rau cov kav dej galvanized lossis cov kav dej uas muaj cov tshuaj tiv thaiv-corrosion coatings, qhwv lawv nrog yas zaj duab xis lossis ntawv tsis muaj dej kom tsis txhob ya raws thiab khawb. (4) Lub kaus mom kawg: Nruab lub hau yas lossis hlau kawg ntawm ob qhov kawg ntawm cov yeeb nkab kom tsis txhob muaj plua plav, noo noo, thiab cov khib nyiab nkag mus rau hauv cov yeeb nkab. Txoj kev thauj mus los muaj xws li: (1) Kev thauj mus los: Siv cov tsheb thauj mus los thauj cov kav dej, uas tsim nyog rau kev ncua luv mus rau nruab nrab. Cov kav dej tau muab tso rau hauv kab rov tav ntawm lub txaj tsheb, ruaj nrog cov hlua kom tsis txhob dov. (2) Kev thauj mus los hauv kev tsheb ciav hlau: Siv cov tsheb ciav hlau tsheb thauj mus los thauj cov kav dej ntau, uas tsim nyog rau kev mus ntev. (3) Kev thauj mus los hauv hiav txwv: Siv cov thawv ntim lossis cov nkoj thauj khoom thauj khoom thauj mus rau kev lag luam thoob ntiaj teb. Cov kav dej tau ntim rau hauv cov thawv los yog ruaj ntseg ntawm lub nkoj lub lawj, nrog kev tiv thaiv kev tiv thaiv kom tsis txhob muaj kev xeb thiab kev puas tsuaj los ntawm cov dej hiav txwv. Thaum lub sij hawm kev thauj mus los, nws yog ib qho tseem ceeb kom tsis txhob muaj kev sib tsoo ntau dhau, kev cuam tshuam, thiab raug huab cua hnyav (xws li los nag hnyav, kub kub) kom ntseeg tau tias cov kav dej tuaj txog qhov zoo.
