Daim ntawv thov teb ntawm cov alloys tshwj xeeb hauv kev lag luam roj av ntawm cov kav hlau stainless
Petroleum kev tshawb nrhiav thiab kev loj hlob yog ntau txoj kev qhuab qhia, thev naus laus zis- thiab kev lag luam siv peev uas yuav tsum muaj ntau cov ntaub ntawv metallurgical thiab cov khoom siv hlau nrog cov khoom sib txawv thiab siv. Nrog rau txoj kev loj hlob ntawm ultra-dav thiab ultra-inclined roj thiab roj qhov dej thiab cov roj thiab roj av uas muaj H2S, CO2, Cl-, thiab lwm yam, daim ntawv thov ntawm stainless hlau cov ntaub ntawv uas yuav tsum tau tiv thaiv corrosion yog nce.
Kev txhim kho ntawm kev lag luam petrochemical nws tus kheej thiab kev rov ua dua tshiab ntawm cov cuab yeej petrochemical tau muab cov kev xav tau siab dua ntawm kev ua tau zoo thiab kev ua haujlwm ntawm cov hlau tsis muaj steel, xav tau cov hlau tsis muaj corrosion-resistant thiab resistant rau qhov kub thiab txias. Cov xwm txheej tsis tau so tab sis nruj dua. Nyob rau tib lub sijhawm, kev lag luam petrochemical yog kev lag luam kub kub, kev kub siab, thiab kev lag luam tshuaj lom. Nws txawv ntawm lwm cov kev lag luam. Cov txiaj ntsig ntawm kev siv cov khoom siv sib xyaw tsis pom tseeb. Thaum qhov zoo ntawm stainless hlau cov ntaub ntawv nyob rau hauv kev lag luam petrochemical tsis tuaj yeem lav, qhov tshwm sim yuav muaj kev puas tsuaj. Yog li ntawd, cov tuam txhab steel hlau hauv tsev, tshwj xeeb tshaj yog cov tuam txhab steel yeeb nkab, yuav tsum txhim kho cov ntsiab lus thiab cov nqi ntxiv ntawm lawv cov khoom kom sai li sai tau los tuav cov khoom lag luam high-end.
Kev lag luam muaj peev xwm ntawm kev lag luam petrochemical yog cov kav dej loj loj rau cov roj tawg rau hauv qhov cub thiab cov kav dej kub qis. Vim lawv qhov tshwj xeeb kub thiab corrosion kuj yuav tsum tau thiab cov khoom siv tsis yooj yim rau kev teeb tsa thiab kev saib xyuas, cov cuab yeej yuav tsum muaj lub neej ua haujlwm ntev, thiab cov khoom siv kho tshuab thiab kev ua haujlwm ntawm cov kav dej yuav tsum tau ua kom zoo dua los ntawm kev tswj cov khoom muaj pes tsawg leeg thiab kev kho cua sov tshwj xeeb. . Lwm lub lag luam muaj peev xwm yog cov kav hlau tshwj xeeb rau kev lag luam chiv (urea, phosphate fertilizer), cov qib steel tseem ceeb yog 316Lmod thiab 2re69.
Feem ntau siv nyob rau hauv reactors nyob rau hauv petrochemical khoom, roj zoo kav, polished rods nyob rau hauv corrosive roj qhov, kauv kav nyob rau hauv petrochemical furnaces, thiab qhov chaw ntawm cov roj thiab roj drilling khoom, thiab lwm yam.
Feem ntau tshwj xeeb alloys siv hauv kev lag luam roj av:
Stainless hlau: 316LN, 1.4529, 1.4539, 254SMO, 654SMO, thiab lwm yam.
Kub kub alloy: GH4049
Nickel-based alloy: Alloy 31, Alloy 926, Incoloy 925, Inconel 617, Nickel 201, thiab lwm yam.
Corrosion-resistant alloy: NS112, NS322, NS333, NS334
Post lub sij hawm: Sep-06-2024