Cov txiaj ntsig ntawm kev siv cov kav hlau spirally welded ASTM A252

Kev Piav Qhia Luv:

Thaum tsim cov kav dej rau ntau yam lag luam, kev xaiv cov khoom siv yog qhov tseem ceeb heev. Cov kav hlau sib txuas ua ke, tshwj xeeb tshaj yog cov uas tsim raws li ASTM A252 tus qauv, tau dhau los ua kev xaiv nrov rau ntau daim ntawv thov vim nws muaj ntau yam zoo.

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Cov Khoom Qhia Txog Khoom

Cov Cim Npe Khoom

Ib qho ntawm cov txiaj ntsig tseem ceeb ntawm kev siv ASTM A252 kauv vuam hlau yeeb nkab yog nws lub zog siab thiab ruaj khov. Cov yeeb nkab no tuaj yeem tiv taus qhov siab thiab cov khoom hnyav, ua rau lawv zoo tagnrho rau kev xa roj thiab roj av, kev thauj mus los hauv dej thiab kev siv cov qauv. Cov txheej txheem vuam kauv siv hauv kev tsim khoom ua kom muaj kev sib txuas zoo thiab sib npaug, ua rau cov yeeb nkab tiv taus qhov chaw ib puag ncig hnyav.

Khoom Siv Kho Tshuab

	Qib 1	Qib 2	Qib 3
Yield Point los yog yield zog, min, Mpa (PSI)	205 (30 000)	240 (35 000)	310 (45 000)
Lub zog tensile, min, Mpa (PSI)	345 (50 000)	415 (60 000)	455 (66 0000)

Kev Tshawb Fawb Txog Khoom

Cov hlau yuav tsum muaj tsis pub ntau tshaj 0.050% phosphorous.

Kev Hloov Pauv Uas Tau Tso Cai Hauv Qhov Hnyav Thiab Qhov Ntev

Txhua qhov ntev ntawm cov yeeb nkab yuav tsum tau ntsuas sib cais thiab nws qhov hnyav yuav tsum tsis txhob hloov ntau tshaj 15% dhau lossis 5% qis dua nws qhov hnyav theoretical, xam los ntawm kev siv nws qhov ntev thiab nws qhov hnyav ib chav ntev.

Lub sab nraud txoj kab uas hla yuav tsum tsis txhob hloov ntau dua ± 1% ntawm qhov teev tseg nominal sab nraud txoj kab uas hla

Phab ntsa tuab ntawm txhua qhov chaw yuav tsum tsis pub ntau tshaj 12.5% nyob rau hauv qhov tuab ntawm phab ntsa uas tau teev tseg

Ntev

Ib qho ntev random: 16 txog 25ft (4.88 txog 7.62m)

Ob chav random ntev: tshaj 25ft txog 35ft (7.62 txog 10.67m)

Qhov ntev sib xws: kev hloov pauv uas tso cai ± 1in

Ntxiv rau lub zog,Cov kav hlau sib txuas ua ke ASTM A252muaj kev tiv thaiv xeb zoo heev. Qhov no tseem ceeb heev rau cov kav dej uas raug rau cov xwm txheej ib puag ncig hnyav lossis cov tshuaj xeb. Cov txheej tiv thaiv ntawm cov kav dej no ua rau lawv tiv thaiv xeb tau zoo dua, ua kom lub neej ua haujlwm ntev dua thiab cov nqi kho qis dua.

Tsis tas li ntawd xwb, cov kav hlau uas vuam ua ke ASTM A252 paub txog nws qhov kev hloov pauv tau yooj yim thiab yooj yim rau kev teeb tsa. Lawv txoj kev tsim qauv yooj yim tuaj yeem hloov kho tau yooj yim kom ua tau raws li cov kev xav tau tshwj xeeb, thaum lawv qhov sib dua ua rau kev tuav thiab kev thauj mus los yooj yim dua. Qhov no ua rau lawv yog qhov kev xaiv pheej yig rau ntau yam kev siv, vim tias lawv tuaj yeem teeb tsa sai thiab zoo, txo cov neeg ua haujlwm thiab lub sijhawm tsim kho.

Lwm qhov zoo ntawm kev siv ASTM A252 kauv welded steel yeeb nkab yog nws qhov kev ruaj khov ib puag ncig. Ua los ntawm cov khoom siv rov ua dua tshiab, cov yeeb nkab no tuaj yeem rov siv dua lossis rov siv dua thaum kawg ntawm lawv lub neej siv tau, txo qhov cuam tshuam ib puag ncig ntawm kev tsim kho thiab kev saib xyuas cov kav dej. Tsis tas li ntawd, nws lub neej ntev thiab qhov yuav tsum tau saib xyuas tsawg pab txhawb rau kev tsim kho vaj tse ruaj khov dua thiab zoo rau ib puag ncig.

Xaus lus, cov kav hlau uas vuam ua ke ASTM A252 muaj ntau yam zoo uas ua rau nws yog thawj qhov kev xaiv rau kev tsim cov kav dej. Lawv lub zog siab, kev ruaj khov, kev tiv thaiv corrosion, kev hloov pauv tau yooj yim thiab kev ruaj khov ib puag ncig ua rau lawv zoo tagnrho rau ntau yam kev siv hauv ntau yam lag luam. Los ntawm kev xaiv cov kav dej no, cov neeg tsim kho qhov project tuaj yeem ua kom ntseeg tau tias lub kaw lus kav dej txhim khu kev qha thiab kav ntev uas ua tau raws li cov qauv zoo tshaj plaws thiab kev ua tau zoo.