Dab tsi yog cov chaw tsim khoom loj thiab thoob ntiaj teb?
Ua rau cov tuam txhab hauv tsev nyob suav nrog Baosteel, Tianjin steel yeeb nkab (TPCO), uas yog cov khoom lag luam yog CG-ntawv pov thawj. Cov khoom lag luam thoob ntiaj teb suav nrog Nyiv Sumitomo hlau thiab lub teb chaws Yelemees yog Mannesmann. Cov tuam txhab ntiag tug xws li Jiangsu Wujin Stainless hlau tshwj xeeb hauv cov kav dej me me thiab nruab nrab precision kav. Thaum kev yuav khoom, txheeb xyuas cov cuab yeej siv tshwj xeeb tsim; chav kawm a). Cov khoom xa tawm yuav tsum ua raws li Bed Cov Lus Qhia 2014/68 / EU.
Dab tsi yog qhov sib txawv ntawm GB 5310 thiab ASTM A335?
GB 5310 yuav tsum muaj cov ntsiab lus phosphorus ntawm tsawg dua lossis sib npaug rau 0.025%, thaum A335 tso cai rau tsawg dua lossis sib npaug rau 0.035%. GB muaj kev cuam tshuam ntau dua hluav taws xob qhov xav tau (ntau dua lossis sib luag rau 27J ntawm -20℃vs. ASTM 21J). Hais txog qhov ntev ntev kev pab, Astm A335 muaj cov phab ntsa xoob kom ntev (± 12.5% vs. GB's ± 10%). Hais txog kev kho cua sov, ASTM pub rau ib txwm thiab tempering lossis quenching thiab tempering. Daim ntawv pov thawj GB yuav tsum muaj boiler thiab siab vessel tso cai ua ib feem ntawm cov ntawv pov thawj.
Qhov tseem ceeb cuam tshuam cov lag luam tus nqi?
Molybdenum metal price fluctuations (accounting for 20% of the cost) directly impact steel pipe prices. When energy costs rise, heat treatment costs can increase by 30%. Large-diameter (>508mm) and thick-walled (>50 hli) cov kav dej hais kom ua 40% hwm. Peb lub hlis twg yuav khoom tshaj li 500 tons tau txais 5-8% luv nqi. Tus nqi lag luam nruab nrab hauv 2023 yog xav tias yuav kwv yees li 8,500-12,000 yuan / tuj (ton (tonter).
Kuv yuav tsum tau txais daim ntawv pov thawj zoo li cas thaum kev yuav khoom?
Cov ntaub ntawv pov thawj khoom (MTC) suav nrog Daim Ntawv Qhia Txog Kev Ntsuam Xyuas Cua Sov. Daim Ntawv Pov Thawj Kev Tiv Thaiv Thib Peb (xws li SGS / BV) yuav tsum muaj, HT, thiab PMI cov txiaj ntsig xeem. Cov cuab yeej tshwj xeeb yuav tsum tau "daim ntawv pov thawj kev nyab xeeb rau cov hlau rau cov boiler thiab cov hlab ntsha siab." Cov khoom lag luam txawv teb yuav tsum muab daim ntawv pov thawj ntawm keeb kwm thiab CE / API daim ntawv pov thawj. Tag nrho cov ntaub ntawv yuav tsum tau ntaus nrog cov chaw tsim khoom lag luam lub thwj.
Dab tsi yog cov ncauj lus yav tom ntej hauv kev xav tau kev thov? Qhov kev nthuav dav ntawm cov untra-supercritical (630 degree) yuav ua rau kev txhim kho kev txhim kho 15crmog (piv txwv li, nrog ntxiv ntawm W thiab NB). Thov kom muaj rau corrosion-resistant kav dej rau ntug dej hiav txwv cua sov yog nce li 15% txhua xyoo. Cov haujlwm hydrogen pipeline xav tau kev txhim kho cov txheej txheem tshiab los ntaus hydrogen maj. Kev ua haujlwm dhau platform (xws li ouyeel cloper kev lag luam) yuav suav tau ntau dua 30% ntawm kev lag luam sib koom. Nyob rau hauv cov pa roj carbon neutrality txoj cai, 15crmog, tsim los ntawm cov hlau rov ua dua tshiab, yuav dhau los ua qhov kev loj hlob tshiab.
