Hluav taws xob Resistance Welded yeeb nkab, feem ntau hu ua ERW yeeb nkab, yog ib qho ntawm cov khoom siv dav tshaj plaws ntawm cov yeeb nkab steel hauv kev lag luam thoob ntiaj teb. Thaum cov kev sib tham yav dhau los yuav tsom mus rau cov txheej txheem vuam lossis cov ntawv thov sib txawv, kev nkag siab ERW yeeb nkab specifications thiab cov qauv yuav tsum tau saib ze dua ntawm cov qauv, phab ntsa thickness series, qib kev faib tawm, thiab cov txheej txheem teem caij. Specifications txhais cov txheej txheem kev ua haujlwm uas ua kom muaj kev sib raug zoo thoob plaws hauv engineering, thaum cov qauv xa mus rau qhov loj thiab tuab sib xyaw ua ke muaj rau cov kev xav tau sib txawv. Kev nkag siab meej ntawm cov kev txwv no tso cai rau cov kws tsim khoom thiab cov neeg yuav khoom xaiv ERW carbon steel yeeb nkab kom raug thiab ua tau zoo.
Dimensional Specifications ntawmERW Carbon Steel Yeeb Nkab
Nominal Pipe Size thiab Sab Nraud Diameter
ERW yeeb nkab qhov ntev yog feem ntau txhais los ntawm Nominal Pipe Size, feem ntau abbreviated li NPS. Qhov nominal loj tsis yog ib txwm sib haum mus rau qhov tseeb sab nraud txoj kab uas hla, tab sis nws muab ib tug standardized siv siv thoob ntiaj teb. Rau qhov me me, tshwj xeeb tshaj yog hauv qab NPS 12, sab nraud txoj kab uas hla tseem nyob ruaj ruaj tsis hais txog ntawm phab ntsa thickness, thaum phab ntsa thickness txawv raws li lub sij hawm faib.
Piv txwv li, ib qho NPS 4 yeeb nkab muaj ib txoj kab uas hla sab nraud ntawm 114.3 hli, tsis hais seb nws yog Teem caij 40 lossis Teem caij 80. Qhov kev tsim qauv no ua kom muaj kev sib hloov ntawm cov fittings thiab flanges hla cov kev ntsuas sib txawv.
Phab ntsa Thickness thiab Schedule System
Phab ntsa tuab nyob rau hauv ERW carbon steel yeeb nkab feem ntau txhais los ntawm lub sijhawm teem caij xws li SCH 10, SCH 20, SCH 40, SCH 80, thiab siab dua. Lub sijhawm txheej txheem qhia txog cov phab ntsa tuab, nrog cov lej ntau dua sawv cev ntawm phab ntsa tuab thiab muaj peev xwm siab dua.
Kev sib raug zoo ntawm txoj kab uas hla thiab phab ntsa thickness ncaj qha cuam tshuam rau kev tso cai sab hauv siab. Cov kws tsim qauv tsim kev cia siab rau cov qauv siab uas tau teev tseg hauv cov kav dej los txiav txim siab lub sijhawm tsim nyog rau kev ua haujlwm. ERW manufacturing yog tshwj xeeb tshaj yog haum rau nyias mus rau nruab nrab phab ntsa thicknesses, ua rau nws muaj kev sib tw nyob rau hauv kev faib khoom thiab cov qauv siv.
Cov lus hauv qab no qhia txog cov qauv qauv ntawm ERW carbon steel yeeb nkab.
| Nominal Pipe Loj (NPS) | Sab nraud txoj kab uas hla (mm) | Teem caij 40 Thickness (mm) | Teem caij 80 Thickness (mm) |
|---|---|---|---|
| 2 | 60.3 | 3.91 | 5.54 |
| 4 | 114.3 | 6.02 | 8.56 |
| 6 | 168.3 | 7.11 | 10.97 |
| 8 | 219.1 | 8.18 | 12.70 |
| 12 | 323.9 | 10.31 | 17.48 |
Cov qauv me me no qhia tau tias phab ntsa thickness nce li cas nrog lub sijhawm thaum sab nraud txoj kab uas hla tseem nyob tas li rau txhua qhov loj me.
Qib Specifications thiab Material Standards
Chemical Composition Requirements
ERW carbon steel yeeb nkab specifications yog ze rau cov ntaub ntawv qib cov qauv xws li ASTM A53, ASTM A106, thiab API 5L. Txawm hais tias A106 feem ntau npog seamless yeeb nkab, ERW yeeb nkab feem ntau ua raws li ASTM A53 thiab API 5L rau kev siv siab thiab kav dej.
Txhua tus qauv txiav txim siab feem pua ntawm cov pa roj carbon, manganese, phosphorus, thiab sulfur. Cov ntsiab lus carbon cuam tshuam lub zog thiab hardness, thaum manganese txhim kho toughness thiab hardenability. Tswj muaj pes tsawg leeg ua kom cov weldability thiab zoo ib yam khoom siv raws li seam.
Mechanical Property Classification
Cov ntaub ntawv qib kuj tau categorized los ntawm cov khoom siv kho tshuab, tshwj xeeb tshaj yog tawm lub zog thiab lub zog tensile. Hauv API 5L cov lus qhia tshwj xeeb, qib xws li Qib B, X42, thiab X52 sib haum mus rau qhov nce qib qis zog. Cov qib siab tso cai rau kev ua haujlwm siab dua lossis txo cov phab ntsa tuab rau tib qhov kev ntsuas siab.
Mechanical xeem yuav tsum muaj xws li tensile test, flattening tests, thiab hydrostatic pressure tests. Tsis yog -kev kuaj xyuas ntawm qhov vuam seam feem ntau yog qhov yuav tsum tau ua kom paub tseeb txog kev ncaj ncees sab hauv. Cov txheej txheem tshuaj xyuas no xyuas kom meej tias ERW carbon steel yeeb nkab ua tau raws li cov txheej txheem kev ua haujlwm tau teev tseg hauv qhov project specifications.
Cov lus hauv qab no qhia txog cov neeg sawv cev qib tshwj xeeb rau ERW yeeb nkab.
| Txuj | Qib | Yam tsawg kawg nkaus tawm lub zog (MPa) | Yam tsawg kawg Tensile Strength (MPa) | Daim ntawv thov |
|---|---|---|---|---|
| ASTM A53 | Qib B | 240 | 415 | Kev faib dej thiab roj |
| API 5L | Qib B | 245 | 415 | Roj thiab roj pipelines |
| API 5L | X42 | 290 | 415 | Nruab nrab -siab kis |
| API 5L | X52 | 360 | 460 | Siab dua -cov kav xa dej siab |
Cov kev qhia tshwj xeeb no txhais tau hais tias tus neeg kho tshuab ciam teb nyob rau hauv uas ERW kav dej ua haujlwm zoo.
Model Classification los ntawm End Hom thiab Deg mob
Xaus Kev Npaj Ua Qauv
ERW yeeb nkab qauv kuj tuaj yeem raug cais los ntawm kev npaj kawg. Hom kawg muaj xws li qhov kawg kawg, beveled kawg, thiab threaded kawg. Plain xaus feem ntau yog siv rau kev siv cov txheej txheem los yog vuam kev sib txuas. Beveled kawg yog npaj rau pob tw welding hauv siab piping systems. Threaded xaus feem ntau yog siv rau hauv qis - cov kav dej thiab cov pa roj uas xav tau kev sib dhos tshuab.
Xaiv qhov kev npaj kawg yog qhov tseem ceeb rau kev txhim kho kev ua tau zoo thiab ntev - lub sij hawm sealing kev ntseeg tau. Tus qauv tsim nyob rau hauv cov ntaub ntawv yuav khoom feem ntau suav nrog ob qho tib si loj thiab qhov kawg kom tsis txhob muaj qhov tsis meej.
Kev kho deg thiab txheej txheej xaiv
Deg mob sawv cev rau lwm qhov specification dimension. ERW carbon steel yeeb nkab tej zaum yuav muab tau raws li cov hlau dub, galvanized, los yog coated nrog sab nraud los tiv thaiv -corrosion txheej xws li 3LPE los yog epoxy systems. Galvanized ERW yeeb nkab yog dav siv hauv cov kav dej thiab hluav taws xob tiv thaiv vim kev txhim kho corrosion. Coated kav yog muaj nyob rau hauv faus pipeline daim ntaub ntawv uas av corrosion tiv thaiv yog ib qho tseem ceeb.
Surface specification cuam tshuam rau lub neej kev pab cuam, txij nkawm zaus, thiab ua raws li cov kev cai ntawm ib puag ncig.
Kev kam rau siab thiab kev tswj xyuas qhov tshwj xeeb
Dimensional tolerances tau hais meej meej hauv cov qauv tswj hwm ERW yeeb nkab ntau lawm. Sab nraum txoj kab uas hla kam rau ua, phab ntsa thickness variation, thiab straightness txwv kom compatibility nrog fittings thiab structural assemblies. Kev sib txawv ntau dhau tuaj yeem ua rau muaj teeb meem kev sib khi lossis kev ua haujlwm tsis zoo.
Kev tswj xyuas zoo suav nrog kev ntsuas hydrostatic los xyuas qhov ntsuas siab thiab ntsuas ultrasonic lossis eddy tam sim no ntawm cov vuam seam. Niaj hnub nimno ERW cov kab ntau lawm sib xyaw ua ke hauv kev tshuaj xyuas cov kab ke kom tswj tau cov khoom zoo ib yam thoob plaws ntau ntau lawm.
Xaus
ERW yeeb nkab specifications thiab qauv encompass dimensional qauv, phab ntsa thickness teem sij hawm, cov ntaub ntawv qib, kev npaj kawg, thiab kev kho deg. Cov kev txwv no sib sau ua ke txiav txim siab txog kev ua haujlwm ntawm cov tshuab, kev teeb tsa kev sib raug zoo, thiab ntev - lub sijhawm ua haujlwm ntev ntawm cov pa roj carbon steel yeeb nkab tshuab.
Los ntawm kev nkag siab txog qhov loj npaum li cas, tus lej teev sijhawm, thiab kev faib qib sib cuam tshuam, engineers tuaj yeem xaiv ERW carbon steel yeeb nkab uas ua tau raws li cov qauv tsim. Cov kev qhia meej meej ua kom muaj kev nyab xeeb, kev ua haujlwm zoo, thiab kev tswj hwm tus nqi thoob plaws hauv kev tsim vaj tsev, kev lag luam, thiab kev siv cov qauv.
