Hauv ntiaj teb kev tsim cov yeeb nkab hlau, kev nkag siab txog cov lus qhia thiab cov qauv kev lag luam yog qhov tseem ceeb rau kev ua kom zoo thiab kev ua tau zoo. Ib qho qauv zoo li no yog ASTM A139, uas piav qhia txog cov kev cai rau cov yeeb nkab hlau hluav taws xob fusion (arc) welded rau kev pabcuam siab. Cov blog no yuav kawm tob txog cov lus qhia tseem ceeb ntawm ASTM A139 thiab tshawb nrhiav nws daim ntawv thov, tshwj xeeb tshaj yog nyob rau hauv cov ntsiab lus ntawm S235 J0 kauv yeeb nkab hlau tsim los ntawm lub tuam txhab tsim khoom hauv Cangzhou, Hebei Xeev.
Cov lus qhia tseem ceeb ntawm ASTM A139
ASTM A139npog ntau yam tseem ceeb ntawm kev tsim cov yeeb nkab hlau, suav nrog cov khoom siv sib xyaw, cov khoom siv kho tshuab, thiab cov txheej txheem sim. Tus qauv tsom mus rau cov lus qhia hauv qab no:
1. Cov Khoom Siv Sib Xyaws: ASTM A139 qhia txog cov tshuaj sib xyaw ua ke ntawm cov hlau siv los ua cov kav dej. Qhov no suav nrog cov kev txwv rau cov ntsiab lus xws li carbon, manganese, phosphorus, thiab sulfur kom ntseeg tau tias cov kav dej muaj lub zog thiab ruaj khov.
2. Cov Khoom Siv Kho Tshuab: Tus qauv no piav qhia txog cov khoom siv kho tshuab uas yuav tsum tau ua, suav nrog lub zog yield, lub zog tensile, thiab elongation. Cov khoom no yog qhov tseem ceeb kom ntseeg tau tias cov yeeb nkab tuaj yeem tiv taus cov kev siv siab yam tsis muaj kev puas tsuaj.
3. Cov kev cai vuam: Txij li thaum ASTM A139 cuam tshuam nrog cov kav dej vuam, nws suav nrog cov lus qhia rau cov txheej txheem vuam, suav nrog hom vuam, qhov zoo ntawm vuam, thiab cov txheej txheem tshuaj xyuas kom ntseeg tau tias cov vuam ua tau raws li cov qauv xav tau.
4. Cov Txheej Txheem Kuaj: Tus qauv kuj piav qhia txog cov txheej txheem kuaj uas yuav tsum tau siv los xyuas qhov zoo thiab kev ua tau zoo ntawm cov kav dej. Qhov no suav nrog cov txheej txheem kuaj tsis ua puas tsuaj los nrhiav cov qhov tsis zoo hauv cov vuam lossis cov ntaub ntawv kav dej.
Daim ntawv thov ntawm ASTM A139 Steel Pipe
Cov kev siv ntawm ASTM A139 cov kav hlau muaj ntau thiab ntau yam, tshwj xeeb tshaj yog nyob rau hauv kev lag luam uas xav tau cov kav dej siab. Cov kav dej no feem ntau siv rau:
- Kev Lag Luam Roj thiab Roj Av: ASTM A139 cov kav dej yog qhov zoo tagnrho rau kev thauj roj thiab roj av nrog lawv lub peev xwm los tiv taus kev nyuaj siab thiab cov xwm txheej ib puag ncig hnyav.
- Cov Txheej Txheem Muab Dej: Qhov ruaj khov thiab lub zog ntawm cov kav dej no ua rau lawv tsim nyog rau kev siv hauv cov txheej txheem muab dej thiab faib dej, ua kom ntseeg tau tias cov dej ntws zoo.
- Kev Ua Tshuaj Lom Zem: Hauv cov chaw tsim tshuaj lom neeg, cov kav dej raug rau cov tshuaj corrosive thiab ASTM A139 cov kav dej muab qhov kev tiv thaiv thiab kev ntseeg tau tsim nyog.
Cov txiaj ntsig ntawm S235 J0cov yeeb nkab hlau kauv
Ib qho ntawm cov khoom zoo tshaj plaws uas peb lub tuam txhab tsim tawm hauv Cangzhou yog S235 J0 kauv hlau yeeb nkab. Cov khoom no tshwj xeeb tshaj yog rau nws qhov kev hloov pauv ntawm txoj kab uas hla thiab phab ntsa tuab. Kev hloov pauv ntawm kev tsim khoom ua rau nws tuaj yeem tsim cov yeeb nkab phab ntsa tuab zoo uas ua tau raws li ntau yam kev xav tau ntawm ntau yam lag luam.
Tsim muaj xyoo 1993, tom qab ntau xyoo ntawm kev loj hlob sai, lub tuam txhab tam sim no npog thaj tsam ntawm 350,000 square meters, muaj tag nrho cov cuab tam ntawm RMB 680 lab, thiab muaj 680 tus neeg ua haujlwm mob siab rau, cog lus los tsim cov kav hlau zoo uas ua tau raws li cov qauv thoob ntiaj teb xws li ASTM A139.
xaus lus
Kev nkag siab txog ASTM A139 thiab nws cov lus qhia yog qhov tseem ceeb rau txhua tus neeg koom nrog kev tsim cov yeeb nkab hlau. Tus qauv no tsis yog tsuas yog ua kom zoo thiab ua tau zoo ntawm cov yeeb nkab xwb, tab sis kuj qhib ntau yam kev siv thoob plaws ntau yam kev lag luam. Nrog cov khoom xws li S235 J0 kauv yeeb nkab hlau, peb lub tuam txhab txuas ntxiv ua tus thawj coj hauv kev muab cov neeg siv khoom nrog cov kev daws teeb meem zoo thiab yooj ywm. Txawm hais tias koj nyob hauv kev lag luam roj thiab roj av, kev muab dej lossis kev ua tshuaj lom neeg, peb cov yeeb nkab hlau yuav ua tau raws li koj xav tau thiab tshaj qhov koj xav tau.
Lub sijhawm tshaj tawm: Lub Ib Hlis-15-2025