A335 P92(sib raug rau qib Suav tus qauv 10Cr9MoW2VNbBN) yog tiam tom ntej martensitic cua sov-resistant hlau tsim los ntawmP91Los ntawm kev ntxiv tungsten (W) rau 9% chromium hlau thiab nce qhov sib npaug ntawm molybdenum (Mo + 0.5W) los ntawm kwv yees li 1% hauv P91 mus rau kwv yees li 1.5%, cov khoom siv ua haujlwm kub siab tau txhim kho zoo heev.

Cov chaw thov tseem ceeb suav nrog:

Kev Tsim Hluav Taws Xob Thermal Ultra-supercritical: P92 yog cov khoom siv tseem ceeb rau cov kav dej loj thiab rov ua kom cov kav dej kub hauv 1000MW-chav kawm ultra-supercritical units, nrog rau qhov kub siab tshaj plaws ntawm 625°C. Thaum 600°C, qhov kev tsim qauv tso cai siab txog 128MPa, thiab lub zog nkag mus rau qhov kub siab≥100MPa. Nws lub zog tawg thaum kub siab yog kwv yees li 30% siab dua P91, nrog rau ib lab-kilowatt unit siv txog li 800 tons.

Cov Cheebtsam Tseem Ceeb ntawm Boiler: Siv dav hauv cov taub hau boiler, cov khoom ua kom sov siab, cov khoom rov ua kom sov, thiab lwm yam khoom siv siab. Nws yog ib qho ntawm cov hlau zoo tshaj plaws rau cov khoom siv hluav taws xob thermal loj uas tsim khoom hauv tebchaws thiab thoob ntiaj teb.

Kev Lag Luam Petrochemical: Siv rau hauv cov kav dej hydrogenation reactor, cov raj cua sov tawg, thiab lwm yam kev kub thiab siab.

Lub Hwj Chim Nuclear: Kuj siv rau hauv cov kav dej theem ob ntawm cov chaw tsim hluav taws xob nuclear tiam peb xws li AP1000.

Piv rau cov hlau austenitic stainless hlau, P92 muaj cov txiaj ntsig xws li kev tiv thaiv corrosion muaj zog, thermal conductivity siab, thiab coefficient thermal expansion qis.

II. Cov Hoobkas Hlau Hauv Tebchaws uas Muaj Kev Sib Tw Zoo

Kev tsim cov hlau P92 yog qhov nyuaj, xav tau cov qauv siab heev hauv kev tsim cov txheej txheem thiab kev tswj hwm kev tsim khoom. Tam sim no, tsuas yog muaj cov chaw tsim hlau hauv tsev tsawg tsawg xwb uas tau ua tiav lub peev xwm tsim khoom ruaj khov.

1. Beizhong Group—Tus Thawj Coj Kev Lag Luam

Beizhong Group tuav ntau tshaj 80% ntawm kev lag luam hauv kev lag luam P92 steel yeeb nkab hauv tebchaws. Nws cov khoom dhau 28 qhov ntsuas kev tshuaj xyuas, thiab nws cov kev ua tiav hauv kev siv tshuab tau yeej qhov khoom plig thawj zaug ntawm China Electric Power Science thiab Technology Innovation. Pawg tau ua tiav kev them tag nrho los ntawmΦ89 rauΦ813, nrog cov ntaub ntawv ua haujlwm engineering ntau heev hauv kev muab plaub lub raj xa dej loj rau cov chav ultra-supercritical.

2. Yonggang Group—Cov txiaj ntsig hauv kev tsim khoom Billet

Yonggang Group tau ua tiav kev sim tsim SA335 P92 hauv xyoo 2017 thiab tam sim no muaj peev xwm tsim cov hlau billets uas ua tiav tas mus li hauv cov lus qhia tshwj xeeb xws liφ380mm rauφ800mm, ua rau nws muaj kev sib tw hauv kev lag luam billet loj hauv tebchaws. Lub tuam txhab P91, P92, thiab lwm yam khoom siv high-alloy loj puag ncig tuav txoj haujlwm ua lag luam hauv Suav teb. Tsis tas li ntawd, nws tau raug xaiv los ua lub Hoobkas tsim khoom ntse hauv tebchaws, txuas ntxiv txhim kho kev tswj hwm cov khoom zoo thiab kev ua kom zoo dua qub.

3. Hebei Hongrun Cov Khoom Siv Nuclear—Cov Khoom Siv thiab Cov Txheej Txheem Tshwj Xeeb

Hongrun Nuclear Equipment siv lub tshuab nias ntsug 50,000-tuj los tsim cov kav hlau loj P92 seamless. Ua ke nrog Baowu Special Steel, nws siv cov hlau zoo, ua rau cov khoom muaj cov qauv ntom thiab kev ua tau zoo heev. Nws cov kav hlau P92 tau dhau daim ntawv pov thawj khoom los ntawm National Power Equipment Center, nrog rau txhua qhov ntsuas kev ua tau zoo ua tau raws li GB/T 5310 thiab ASME SA335 tus qauv.

4. Lwm Cov Neeg Tsim Khoom

Baosteel Special Steel, Tianguan Group, Xinxing Ductile Iron, thiab lwm lub tuam txhab kuj tau ua tiav kev tsim khoom loj ntawm cov khoom lag luam cuam tshuam nrog P92, txhawb cov txheej txheem localization ntawm cov khoom siv no.

III. Cov Kev Zoo Sib Tw Tag Nrho

Qhov zoo ntawm kev sib tw ntawm cov chaw tsim hlau hauv tsev hauv cov khoom P92 feem ntau yog pom tseeb hauv: thawj zaug, txo cov nqi yuav khoom los ntawm kev hloov pauv ntshuam; qhov thib ob, kev ruaj khov zoo ntawm cov khoom lag luam uas tsav los ntawm kev hloov pauv ntse thiab digital (piv txwv li, Yonggang qhov project Hoobkas ntse tau ua tiav ntau dua 12% kev ua haujlwm ntau lawm thiab txo qis 15.7% qhov tsis xws luag); thiab qhov thib peb, kev sib tw tas mus li hauv cov lus qhia siab xws li cov kav dej loj thiab cov kav dej tuab, maj mam txo qhov kev vam khom rau kev xa khoom tuaj.