Dab tsi yog Qhov Kev Tsim Kho Kom Zoo Thiab Kev Txwv Rau LSAW Steel Pipe?

Hauv cov phiaj xwm loj -, tshwj xeeb tshaj yog cov kav dej tseem ceeb rau roj, roj, thiab dej, qhov tseeb thiab qhov sib xws ntawm cov khoom yog qhov tseem ceeb. Longitudinally Submerged Arc Welded (LSAW) steel kav yog lub hauv paus ntawm cov haujlwm zoo li no, paub txog lawv cov kab loj loj, cov phab ntsa hnyav, thiab kev ua haujlwm zoo. Txawm li cas los xij, txawm tias nrog cov txheej txheem tsim khoom siab heev, kev sib txawv me ntsis ntawm nominal qhov ntev yog inevitable. Cov deviations tso cai no hu ua manufacturing tolerances. Tab sis dab tsi yog qhov kev zam thiab kev txwv rau LSAW steel yeeb nkab, thiab vim li cas lawv thiaj li tseem ceeb heev rau txoj haujlwm ua tiav? Hebei Huayang Steel Pipe Co., Ltd., yog ib lub chaw tsim khoom ntawm LSAW steel kav, muab cov lus piav qhia ntxaws txog cov kev ntsuas tseem ceeb no.

Nkag siab txog Kev Lag Luam Kev Lag Luam

Manufacturing tolerances yog qhov kev txwv ntawm kev hloov pauv hauv qhov ntev thiab cov khoom ntawm cov khoom tsim. Rau LSAW steel kav, cov kev kam rau ua kom ntseeg tau tias:

•Fit-up thiab Vuam: Cov kav dej tuaj yeem koom ua ke ua haujlwm tau zoo thiab raug nyob rau hauv qhov chaw, txo qhov khoob thiab ua kom muaj zog, txhim khu kev qha welds.

•Hydraulic Performance: Qhov ntev ntawm sab hauv muaj cov yam ntxwv zoo ntws thiab txo qis qis.

•Structural Integrity: Deviations nyob twj ywm nyob rau hauv cov kev txwv uas tsis cuam tshuam cov yeeb nkab lub peev xwm los tiv thaiv kev khiav hauj lwm pressures thiab sab nraud loads.

•Interchangeability: Cov kav dej los ntawm cov khoom sib txawv lossis cov chaw tsim khoom tuaj yeem siv ua ke seamlessly, ua kom yooj yim rau cov khoom loj -.

• Kev Tswj Tus Nqi: Tsis txhob nruj heev (thiab kim) kam rau ua kom ntseeg tau tias kev ua haujlwm tau ua tiav.

Cov kev kam rau siab no yog txhais los ntawm cov qauv thoob ntiaj teb thiab yog ib qho tseem ceeb ntawm kev tswj xyuas zoo hauv LSAW yeeb nkab ntau lawm.

Qhov tseem ceeb Manufacturing Tolerances rau LSAW Steel Yeeb Nkab

LSAW cov kav dej yog raug rau ntau qhov ntev thiab daim ntawv kam rau ua, feem ntau npog lawv lub cev qhov ntev thiab cov duab geometric.

1. Sab nraud txoj kab uas hla (OD) kam rau ua

Sab nraud txoj kab uas hla yog ib qho ntawm qhov tseem ceeb tshaj plaws, cuam tshuam cov yeeb nkab haum- nce thiab txuas mus rau lwm yam khoom. Tolerances feem ntau txawv raws li qhov nominal txoj kab uas hla thiab cov qauv tshwj xeeb. Piv txwv li, API 5L qhia txog qhov sib txawv OD kam rau ua rau cov yeeb nkab lub cev thiab cov yeeb nkab kawg, nrog rau kev ua siab ntev dua feem ntau xav tau ntawm qhov kawg rau vuam lub hom phiaj.

2. Phab ntsa Thickness (WT) kam rau ua

Phab ntsa thickness ncaj qha cuam tshuam cov yeeb nkab lub siab muaj peev xwm thiab lub zog muaj zog. WT kam rau ua feem ntau yog qhia raws li feem pua ​​​​ntawm nominal phab ntsa thickness, nrog rau ob qho tib si zoo thiab tsis zoo sib txawv tso cai. Piv txwv li, API 5L tso cai rau kev kam rau siab ntawm ± 10% ntawm nominal phab ntsa thickness rau PSL1 kav, thiab nruj dua kam rau ua tej zaum yuav raug teev rau PSL2 los yog tej yam yuav tsum tau ua ib qhov project.

3. Ntev Ntev

LSAW kav feem ntau yog tsim nyob rau hauv tus qauv ntev (piv txwv li, 6 meters, 12 meters) los yog kev cai ntev. Length tolerances qhia qhov kev sib txawv uas tso cai los ntawm qhov ntev txiav txim. Qhov no yog qhov tseem ceeb rau kev npaj cov kav xa dej thiab txo qis ntawm - qhov chaw txiav thiab pov tseg.

4. Ncaj siab kam rau ua

Cov yeeb nkab ncaj nraim yog qhov tseem ceeb rau kev yooj yim ntawm kev teeb tsa, tshwj xeeb tshaj yog nyob rau hauv ntev - cov kav dej. Tolerances txhais qhov siab tshaj plaws tso cai sib txawv ntawm ib txoj kab ncaj nraim hla ib qhov ntev. Kev nkhaus ntau dhau tuaj yeem ua rau muaj teeb meem hauv kev sib dhos, muaj kev ntxhov siab ntxiv thaum lub sijhawm teeb tsa, thiab muaj teeb meem tshwm sim thaum ua haujlwm.

5. Ovality (Tawm- ntawm-Roundness) kam rau ua

Ovality yog hais txog qhov sib txawv ntawm cov yeeb nkab hla -section los ntawm lub voj voog zoo meej. Nws yog feem ntau qhia raws li feem pua ​​​​ntawm cov nominal OD. High ovality tuaj yeem cuam tshuam cov vuam, txo qis kev ua haujlwm, thiab cuam tshuam rau cov yeeb nkab cov qauv kev ntseeg siab nyob rau sab nraud. Cov txheej txheem teeb tsa kev txwv kom ntseeg tau tias cov yeeb nkab tseem nyob ib puag ncig txaus.

6. Xaus Squareness kam rau ua

Rau kev ua haujlwm zoo, cov yeeb nkab kawg yuav tsum yog square (perpendicular) rau cov yeeb nkab axis. Xaus squareness kam rau ua txhais qhov siab tshaj plaws tso cai sib txawv. Qhov kawg squareness tsis zoo tuaj yeem ua rau qhov tsis sib xws ntawm qhov sib txawv thiab cov teeb meem hauv kev ua tiav qhov muaj zog, zoo ib yam weld.

7. Bevel lub kaum sab xis thiab hauv paus ntsej muag kam rau ua

Rau cov kav dej uas yuav tsum tau pob tw-welded, qhov kawg feem ntau yog beveled. Tolerances yog teev rau lub kaum sab xis thiab lub hauv paus lub ntsej muag (qhov chaw tiaj tus ntawm qhov kawg ntawm bevel). Cov no yog ib qho tseem ceeb rau kev ua tiav qhov kev npaj weld kom raug thiab ua kom muaj kev nkag mus rau qhov vuam tag nrho.

International Standards GoverningLSAW TubeTolerances

Kev tsim kev kam rau siab rau LSAW steel kav yog nruj me ntsis raws li cov qauv thoob ntiaj teb los xyuas kom meej lub ntiaj teb sib xws thiab sib hloov. Cov qauv tseem ceeb suav nrog:

• API 5L (American Petroleum Institute Specification for Line Pipe): Siv dav rau cov kav dej thiab roj, API 5L muab cov ncauj lus kom ntxaws rau OD, WT, ntev, ncaj, ovality, thiab kev npaj kawg rau ob qho tib si PSL1 thiab PSL2 kav.

• ASTM A252 (Standard Specification for Welded and Seamless Steel Pipe Piles): Qhia meej rau cov kav dej siv los ua cov txheej txheem.

TS EN 10217 (Welded steel tubes rau lub hom phiaj siab) / EN 10219 (Cold formed welded structural hollow sections): European cov qauv uas kuj txhais qhov ntev ntev rau cov kav dej LSAW siv hauv kev siv siab thiab cov qauv siv.

• ISO 3183 (Petroleum thiab natural gas industries - Steel yeeb nkab rau pipelines - Technical delivery conditions): Sib raug zoo nrog API 5L, tus qauv no kuj muab kev kam rau siab.

Hebei Huayang Steel Yeeb Nkab Co., Ltd. ua raws li cov qauv thoob ntiaj teb no, kom ntseeg tau tias peb cov kav dej LSAW ua tau raws li qhov yuav tsum tau ua ntawm kev ua siab ntev ntawm koj cov haujlwm.

Hebei Huayang: Precision hauvLSAW TubeKev tsim khoom

Ntawm Hebei Huayang Steel Pipe Co., Ltd., precision yog lub hauv paus ntawm peb cov txheej txheem LSAW yeeb nkab. Peb lub xeev- ntawm-- cov chaw kos duab tau nruab nrog cov txheej txheem tsim thiab vuam thev naus laus zis, nrog rau kev ntsuas thiab kev tshuaj xyuas cov tshuab. Peb siv cov txheej txheem tswj kev tswj hwm nruj ntawm txhua theem, los ntawm kev tshuaj xyuas cov khoom siv raw mus rau qhov tseeb cov khoom pov thawj, kom ntseeg tau tias peb cov kav dej LSAW tsis tu ncua ua tau raws lossis dhau qhov kev tsim khoom tsim nyog.

Peb qhov kev cog lus rau qhov tseeb tau lees paub tias peb cov kav dej LSAW muab kev haum zoo tshaj - nce, kev ua haujlwm zoo hydraulic, thiab kev ua haujlwm ruaj khov, ua rau lub sijhawm ntev - kev vam meej thiab kev ntseeg siab ntawm koj cov phiaj xwm tseem ceeb. Koom tes nrog Hebei Huayang rau LSAW kav uas zoo thiab precision yeej tsis muaj kev cuam tshuam.

Hom Kev Lag Luam Kev Lag Luam rau Hebei HuayangLSAW Steel Pipes (API 5L PSL1)

Nco tseg: Cov kev zam tshwj xeeb yuav txawv raws li cov yeeb nkab loj, phab ntsa tuab, qib steel, thiab cov neeg siv khoom tshwj xeeb lossis cov qauv siv tau (piv txwv li, PSL2 feem ntau muaj qhov nruj dua).

Hauv kev xaus, kev nkag siab thiab ua raws li kev tsim cov khoom lag luam yog qhov tseem ceeb rau kev ua tau zoo thiab kev ua haujlwm ntawm LSAW steel kav. Cov kev txwv no ua kom ntseeg tau tias cov kav dej tuaj yeem txhim kho tau zoo thiab ua haujlwm tau zoo hauv cov ntawv thov tseem ceeb. Hebei Huayang Steel Yeeb Nkab Co., Ltd. tau mob siab rau tsim cov kav dej LSAW nrog qhov tshwj xeeb qhov tseeb thiab sib xws, ua tau raws li cov qauv nruj tshaj plaws thoob ntiaj teb. Hu rau peb hnub no los tham txog koj qhov project tshwj xeeb qhov yuav tsum tau ua thiab tau txais txiaj ntsig los ntawm peb txoj kev cog lus rau precision engineering.