EN 10255 yog tus qauv European rau cov tsis yog - cov kav hlau alloy (feem ntau hu ua "dub pipes" lossis "galvanized pipes") haum rau vuam thiab xov. Cov lus hauv qab no qhia txog nws cov ntaub ntawv tseem ceeb, ua kom yooj yim rau koj nkag siab sai.
| Qhov project | Cov lus qhia ntxaws |
| standard npe | Tsis yog -alloy steel kav haum rau vuam thiab threading - Kev xa khoom |
| Common steel qib | S195T (qib steel 1.0026) |
| Qhov loj me |
- Sab nraud txoj kab uas hla: 10.2mm txog 165.1mm (xws li xov loj 1/8 txog 6 ntiv tes) - Phab ntsa thickness series: Feem ntau muab faib ua ob series, "Medium" thiab "Havy" |
| Tej daim ntawv thov | Kev thauj mus los ntawm cov kua dej (dej, roj, cua, roj), cua sov / cua txias, lub tshuab hluav taws xob, lub tsev, thiab lwm yam |
🔧 Standard xav tau thiab cov khoom nta
EN 10255 tus qauv muaj cov kev xav tau meej meej rau cov kav hlau, uas tseem yog cov yam ntxwv tseem ceeb ntawm nws cov khoom:
• Khoom siv:
Tus qauv qhia meej meej qhia txog cov tshuaj muaj pes tsawg leeg thiab cov khoom siv ntawm cov hlau. Siv cov qib S195T ua piv txwv, nws lub zog tawm los yuav tsum tsis pub tsawg dua 195 MPa, thiab lub zog tensile nyob nruab nrab ntawm 320 thiab 520 MPa, kom ntseeg tau tias cov kav dej muaj lub hauv paus muaj zog txaus.
• Dimensions thiab Tolerances:
Tus txheej txheem nruj me ntsis hais txog lub sab nraud txoj kab uas hla, phab ntsa thickness thiab lwm qhov ntev ntawm cov kav hlau steel, nrog rau lawv qhov kev sib txawv ntawm qhov kev tso cai, kom ntseeg tau tias lawv sib hloov thiab kev sib txuas kev ntseeg tau hauv engineering. Piv txwv li, sab nraud txoj kab uas hla yog feem ntau ± 0.5 hli rau ± 1.0 hli, thiab phab ntsa thickness kam rau ua yog ± 10% ntawm tus nqi nominal.
• Txheej txheem thiab tshuaj xyuas:
Cov kav hlau steel yuav tsum tau ua ntau yam kev sim nruj. Cov khoom siv feem ntau suav nrog kev sim hydrostatic (los xyuas qhov siab- cov kabmob muaj peev xwm), kev ntsuas cov cuab yeej cuab yeej (xws li tensile thiab dabtsi yog khoov), thiab tsis yog- kuaj kev puas tsuaj (xws li eddy tam sim no kuaj lossis kuaj ultrasonic), thiab lwm yam, kom paub meej cov khoom zoo.
• Kev kho deg thiab kev sib txuas:
EN 10255 steel kav tuaj yeem raug kho raws li qhov xav tau. Qhov ntau tshaj plaws yog kub-dip galvanizing, uas muab kev tiv thaiv zoo heev - tiv thaiv corrosion. Nws cov yeeb nkab kawg tsim ua rau nws tsim nyog rau kev sib txuas threaded lossis vuam, thiab nws yooj yim rau nruab.
💎 Kev yuav khoom thiab siv cov lus qhia
Thaum xaiv thiab siv EN 10255 steel kav, cov ntsiab lus hauv qab no tuaj yeem raug sau tseg:
• Qhia kom meej cov cai:
Paub meej tias qhov yuav tsum tau muaj phab ntsa thickness series raws li daim ntawv thov (nruab nrab hom yog haum rau dav dav scenarios, thaum hnyav hom yog siv nyob rau hauv ntau dua load ib puag ncig) thiab kev kho deg (yog tias xav tau kev tiv thaiv xeb, xaiv cov kav dej galvanized).
• Ua tib zoo mloog rau tus qauv version:
Thov nco ntsoov tias muaj ob qho tib si tshiab thiab qub ntawm tus qauv, xws li EN 10255:2004+A1:2007 thiab EN 10255: 2015.
Thaum yuav khoom, koj tuaj yeem paub meej tias tus qauv version koj vam khom.
• Certification Requirements:
Yog tias cov khoom siv hauv EU kev ua lag luam lossis thaj chaw tshwj xeeb (xws li cov haujlwm tsim kho), nws yuav tsum tau ua raws li EU Kev Tswj Xyuas Khoom Siv Khoom Siv (CPR) thiab kos cov cim CE. Nws yog ib qho tsim nyog los xyuas kom meej tias tus neeg xa khoom tuaj yeem muab cov lus tshaj tawm ntawm kev ua raws cai lossis daim ntawv pov thawj.
