Thaum Lub Kaum Ob Hlis 20, tus neeg sau xov xwm tau kawm los ntawm Tuam Tshoj Hlau thiab Hlau Tshawb Fawb Pawg Gaona Company tias lub tuam txhab tau ua tus thawj coj hauv kev tsim khoom Fushun Special Steel thiab Erzhong Wanhang thawj zaug hauv ob peb hnub dhau los kom ua tiav kev sim tsim cov superalloy turbine disk integral die forging loj tshaj plaws hauv kuv lub tebchaws tam sim no - Lub super-loj GH4706 alloy turbine disk forgings, tsim nyog rau kev siv nyob rau hauv qhov kub siab ntawm 650 degrees Celsius, nrog qib zog ntawm 1200 MPa, qhov hnyav ntawm 13.5 tons, thiab txoj kab uas hla ntawm 2380 hli, tau tawg lub tebchaws txawv teb chaws monopoly.
Raws li Zhao Guangpu, tus thawj coj ntawm qhov kev tshawb fawb thiab tus lwm thawj coj ntawm Pawg Neeg Tshawb Fawb Hlau Gona Science thiab Technology, cov roj turbines hnyav rau cov chaw tsim hluav taws xob loj muaj cov txiaj ntsig zoo xws li lub zog siab, kev ua haujlwm thermal siab, qhov me me thiab qhov hnyav, thiab kev ua qias tuaj tsawg. Nws cov thev naus laus zis tsim khoom tau dhau los ua theem thev naus laus zis hauv tebchaws. , Ib qho ntawm cov cim tseem ceeb ntawm lub zog hauv tebchaws. Nws cov khoom siv kub kub yog ib lub disc thiab ob (turbine discs thiab cov lus qhia, cov hniav ua haujlwm), uas ua haujlwm ua "lub plawv" ntawm tib neeg. Lawv yog cov thev naus laus zis tseem ceeb rau kev tsim cov roj turbine thiab lub qhov ncauj txwv tsis pub muaj kev nyob hauv zos ntawm cov roj turbines hnyav. Cov roj turbine turbine disks hnyav xav tau ntau dua 100,000 teev ntawm kev pabcuam kub thiab siab ntev, thiab xav tau cov khoom siv hlau zoo heev, xws li homogeneous, ntshiab, zoo-grained, ruaj khov cov qauv khoom thiab kev ua tau zoo; loj dua, thiab nws txoj kab uas hla thiab thaj chaw kwv yees yog feem ntau Nws ncav cuag ntau dua 2.2 meters thiab 4.2 square meters, uas yog 4 npaug ntawm txoj kab uas hla ntawm lub cav turbine disk, 10 npaug ntawm thaj chaw kwv yees, thiab 60 npaug ntawm qhov hnyav, thiab lwm yam. Cov thev naus laus zis tsim khoom tseem ceeb ntawm cov super-sized superalloy turbine disks tau nyob hauv kev thaiv tsis pub dhau txawv teb chaws thiab tau raug tswj hwm los ntawm cov teb chaws sab hnub poob ntev heev.
Txog qhov kawg no, Zhao Guangpu tau coj pab pawg neeg ua haujlwm los ua ntau yam kev tshawb fawb yooj yim thiab kev tshawb fawb txog thev naus laus zis, thiab thaum kawg tau siv cov thev naus laus zis thoob ntiaj teb "triple smelting + repeated upsetting + twice upsetting + one-fire overall die forging" los ua raws li cov Txheej Txheem Thoob Ntiaj Teb, rhuav tshem qhov teeb meem ntawm kev npaj superalloy turbine disk loj uas ntsib thaum lub sijhawm tsim kho, xws li triple low-segregation smelting technology rau cov hlau loj nrog cov hlau hnyav dua 18 tons, thiab rov ua dua upsetting thiab fine-grain blooming technology rau cov hlau loj nrog txoj kab uas hla ntawm 1000 mm, nrog txoj kab uas hla ntawm 2200 Integral die forging thiab low-temperature forming thiab organization control technology rau cov phaj loj dua millimeters. Pab pawg neeg ua haujlwm tau ua kev tshawb fawb ywj pheej thiab kev txhim kho thiab kev tsim kho tshiab rau cov teeb meem metallurgical xws li cov ntsiab lus Nb siab heev ntawm cov khoom alloying hauv GH4706 superalloy, uas yooj yim rau cov xim dub thiab cov xim dawb sib cais. Cov khoom tseem ceeb ntawm kuv lub teb chaws cov roj turbine hnyav yog "stuck neck", uas tau qhib txoj hauv kev rau kev npaj cov superalloy turbine disks loj uas muaj cov yam ntxwv Suav nrog cov cai tswjfwm kev txawj ntse ywj pheej.
Tom qab kev kuaj xyuas lub cev, qhov kev ua tau zoo ntawm lub turbine disc tau mus txog qhov yuav tsum tau ua ntawm cov hlau txawv teb chaws zoo sib xws, thiab tau ua tiav qhov tshwm sim tseem ceeb. Qhov no yog lwm qhov kev tshawb pom tseem ceeb uas kuv lub teb chaws tau ua hauv kev ua cov superalloys deformed, uas tau tsav cov thev naus laus zis npaj ntawm cov super-loj turbine disks hauv tsev kom mus txog qib thoob ntiaj teb. Thaum Lub Kaum Ob Hlis 8, lub rooj sib tham tshuaj xyuas qhov tseem ceeb rau GH4706 alloy full-size roulette forgings tau muaj nyob rau hauv Beijing. Cov kws tshaj lij tau muab kev ntsuam xyuas siab, uas txhais tau tias ib kauj ruam khov kho tau raug coj mus rau kev siv tiag tiag ntawm lub turbine disk.