TS EN 545 Cov kav hlau kav hlau thiabISO 2531 Cov kav hlau kav hlausib txawv ntawm cov hauv qab no:
Standard teeb tsa cov ntsiab lus thiab Scope ntawm daim ntawv thov
1. TS EN 545:
Nws tau tsim los ntawm European Committee for Standardization (CEN). Cov kav dej xa hluav taws xob tsim nyog rau thaj tsam European yog dav siv hauv cov dej num hauv ntau lub tebchaws nyob sab Europe.
2. ISO 2531:
Nws tau tsim los ntawm International Organization for Standardization (ISO). Nws muaj kev siv dav thoob ntiaj teb thiab tsim nyog rau cov kav dej xws li dej thiab dej thoob ntiaj teb.
Cov ntsiab lus kev xav tau
1. Loj specifications:
EN545 muaj cov ncauj lus kom ntxaws txog qhov loj me, thaum ISO2531 tsom mus rau ntau qhov loj me. ISO2531 tuaj yeem npog ntau qhov dav ntawm cov yeeb nkab diameters kom tau raws li cov kev xav tau ntawm ntau lub teb chaws thiab cheeb tsam.
2. Khoom siv:
Lub zog tensile: Ob leeg muaj qhov xav tau meej rau lub zog tensile ntawm cov kav hlau hlau kom ntseeg tau tias lawv muaj kev nyab xeeb nyob rau hauv thiab sab nraud, txawm hais tias qhov tshwj xeeb qhov tseem ceeb yuav txawv me ntsis.
Tus nqi elongation: Tus nqi elongation qhia tau hais tias cov khoom siv tau zoo npaum li cas los ntawm cov yas deformation. EN545 thiab ISO2531 muaj qee qhov yuav tsum tau ua rau elongation ntawm cov kav hlau hlau. Cov kev hloov pauv hauv cov lej muaj nuj nqis tshwm sim los ntawm cov qauv kev ua haujlwm sib txawv.
3. Anti-corrosion kev ua tau zoo:
Txhawm rau tiv thaiv corrosion ntawm cov kav hlau kav thaum siv, ob qho tib si cov qauv yuav tsum muaj cov txheej txheem tiv thaiv corrosion ntawm cov kav dej sab hauv thiab sab nraud.
EN545 yog qhov tsim nyog rau ib puag ncig cov cai hauv cheeb tsam European. ISO2531 muab ntau yam kev xaiv rau cov txheej txheem tiv thaiv corrosion sab nraud kom hloov mus rau huab cua thiab av ntawm ntau thaj tsam.
Cov kev xav tau rau sab hauv los tiv thaiv corrosion sib txawv ntawm cov ntaub ntawv txheej, thickness, thiab kev ua haujlwm.
4. sealing kev ua tau zoo:
Ob leeg EN545 thiab ISO2531 muaj cov kev cai nruj rau kev sib khi ua haujlwm ntawm cov kav dej txuas. Cov qauv sib txawv tuaj yeem muaj qhov sib txawv rau kev sib khi qauv tsim thiab cov khoom sib khi.
Cov txheej txheem xeem thiab cov ntawv pov thawj yuav tsum tau ua
1. Kev kuaj xyuas txoj kev:
Nyob rau hauv cov txheej txheem sim tiag tiag, nws yog ib qho tsim nyog yuav tsum xaiv cov kev sim tsim nyog raws li cov qauv sib txawv.
2. Daim ntawv pov thawj xav tau:
Cov kav hlau kav uas ua raws li EN545 cov qauv feem ntau xav tau ntawv pov thawj los ntawm cov koom haum European cov ntawv pov thawj. Cov kav hlau kav hlau uas ua raws li ISO2531 tus qauv yuav xav tau ntawv pov thawj los ntawm cov koom haum pov thawj thoob ntiaj teb.
Qhov sib txawv ntawm cov ntawv pov thawj yuav tsum muaj xws li kev tswj xyuas cov khoom zoo, kev tswj cov txheej txheem tsim khoom, thiab cov ntaub ntawv ntsuam xyuas.
Hauv cov ntsiab lus, muaj qee qhov sib txawv ntawmEN545 cov kav hlau kav hlauthiab ISO2531 ductile hlau kav hauv qee yam. Thaum xaiv cov kav hlau kav hlau, cov yam ntxwv ntawm ob tus qauv yuav tsum tau ua tiav raws li cov kev cai tshwj xeeb engineering thiab kev siv ib puag ncig, thiab cov khoom uas ua tau raws li cov kev cai yuav tsum tau xaiv.
