1. Q: Rau daim ntawv thov scaffolding, cov yeeb nkab qib twg muaj qhov tsim nyog lub zog thiab ua haujlwm ntev rau kev sib dhos thiab kev sib tsoo?
A: ASTM A53 Qib B (ERW lossis Seamless)yog tus qauv kev lag luam rau scaffolding vim nws txhim khu kev qha lub zog, zoo toughness, thiab muaj. Nws ua tau raws li cov kev xav tau ntawm txhua yam uas tau teev tseg hauv cov qauv scaffolding xws li EN 39.
2. Q: Dab tsi yog qhov tseem ceeb ntawm "X" hauv API 5L qib zoo li X70?
A:Qhov "X" txhais tau tias aTsawg tshaj tawm lub zog ntawm 70,000 psi(70 hli). X42=42,000 psi, X80=80,000 psi, thiab lwm yam. Cov qib siab - lub zog, qis- alloy (HSLA) tso cai rau cov kav xa dej ua haujlwm ntawm qhov siab dua lossis nrog cov phab ntsa nyias, txo cov khoom siv thiab cov nqi thauj mus los.
3. Q: Thaum twg koj yuav qhia ASTM A523 Qib B rau kev pabcuam kav dej?
A: ASTM A523 Qib Byog specification rautaub qab-welded yeeb nkab rau siab - siab cable thiab conduit circuits.Nws tsis yog feem ntau siv rau cov kav dej xa dej. Rau cov,API 5Lqib yog tus qauv.
4. Q: Peb xav tau ib lub yeeb nkab nrog kev huv huv sab hauv ntawm cov khoom noj khoom haus. Yam qib twg thiab cov txheej txheem tsim khoom yog nyiam?
A: ASTM A270 Qib 316L stainless hlau yog tus qauv rau cov kab huv huv.Rau carbon steel qhov twg tso cai,ASTM A513 Hom 5 (DOM - Drawn Over Mandrel) tubing tshuabua los ntawm qib zoo li 1020 muaj qhov du heev, nplai -dawb sab hauv qhov chaw tsim nyog rau qee cov ntawv thov zaub mov.
5. Q: Vim li cas tom qab-weld heat treatment (PWHT) feem ntau xav tau rau cov kav dej ua los ntawm ASTM A106 Qib C?
A:Vim nwscov ntsiab lus carbon ntau dua(max 0.55%),A106 Qib CNws yooj yim dua rau kev tsim cov tawv tawv, nkig martensite hauv tshav kub- cuam tshuam thaj chaw (HAZ) tom qab vuam.PWHTrelieves cov residual stresses thiab tempers tej thaj chaw nyuaj, txo cov kev pheej hmoo ntawm tawg.
