ASTM A240 UNS S32750, muaj npe nrov rau lawv qhov tshwj xeeb corrosion tsis kam thiab siab zog. Cov txheej txheem tsim khoom rau cov noSuper duplex 2507 stainless hlau daim hlaukoom nrog cov txheej txheem ua kom zoo kom ntseeg tau tias cov khoom kawg ua tau raws li cov qauv nruj ntawm ASTM A240. Hauv qab no yog cov ncauj lus kom ntxaws txog kev tsim khoom.
1. Raw Material Xaiv:
Cov txheej txheem pib nrog ceev faj xaiv cov khoom siv raw, suav nrog hlau, chromium, npib tsib xee, molybdenum, thiab nitrogen, thiab lwm yam. Cov muaj pes tsawg leeg tseem ceeb heev kom ua tiav cov khoom xav tau ntawm ASTM A240 UNS S32750.
2. Melting thiab Casting:
ASTM A240 S32750 raw cov ntaub ntawv uas tau xaiv yog melted nyob rau hauv ib tug hluav taws xob arc rauv, thiab molten hlau yog cam khwb cia rau hauv loj slabs, nteg lub hauv paus rau tom ntej ua.
3. Kub Rolling thiab Txias Rolling:
Cov cam khwb cia slabs tau kub dov ntawm qhov kub siab, txo cov thickness thiab ua rau lawv nyob rau hauv thawj daim ntawv phaj. Txias dov tuaj yeem ua raws li txhawm rau txhim kho 1.4410 cov khoom siv qhov tseeb thiab qhov chaw tiav, ua tau raws li ASTM A240 tus qauv.
4. Kev kho cua sov:
Cov kub dov s32750 super duplex daim hlau tau txais kev kho cua sov, tshwj xeeb tshaj yog cov txheej txheem annealing. Cov kauj ruam tseem ceeb no tshwm sim ntawm qhov kub ntawm 1880 degree F [1025 degree] mus rau 2060 degree F [1125 degree], optimizing 2507 cov khoom siv kho tshuab.
5. Dej quenching:
Tom qab cov tshuaj annealing, super duplex uns s32750 daim hlau tau dhau los ua cov txheej txheem dej nrawm. Qhov no ua kom muaj kev txhim kho ntawm qhov xav tau duplex microstructure, ua rau cov khoom siv ss 2507 corrosion kuj thiab siab zog.
6. Pickling thiab Passivation:
ASTM A240 UNS S32750 daim hlau yog tom qab ntawd raug xaiv, tshem tawm cov nplai lossis oxides tsim thaum lub sijhawm kub dov. Passivation kuj tseem siv tau los txhim kho kev tiv thaiv corrosion los ntawm kev tsim cov oxide txheej tiv thaiv.
7. Txiav rau qhov loj:
Precision txiav txoj kev, xws li shearing, plasma txiav, los yog waterjet txiav, yog ua hauj lwm kom ua tau raws li qhov ntev raws li ASTM A240 saf 2507 super duplex yuav tsum.
8. Kev Tswj Xyuas Zoo thiab Kev Tshawb Fawb:
Cov kev tswj xyuas nruj nruj tau siv thoob plaws hauv cov txheej txheem, ua kom muaj kev ua raws li qhov tseeb ntawm qhov tseeb, qhov chaw tiav, tshuaj lom neeg muaj pes tsawg leeg, thiab cov khoom siv tshuab raws li ASTM A240 UNS S32750 tus qauv.
9. Kev kos npe, ntim, thiab cov ntaub ntawv:
Qhov kawg ASME SA240 s32750 stainless hlau daim hlau yog cim nrog cov ntaub ntawv tseem ceeb xws li cov xov tooj cua sov, qhov tshwj xeeb, thiab qhov loj me. Lawv tau ua tib zoo ntim los tiv thaiv kev puas tsuaj thaum thauj thiab khaws cia. Cov ntaub ntawv nthuav dav, suav nrog daim ntawv pov thawj zeb xeem, nrog rau daim ntawv duplex 1.4410, muab kev lees paub ntawm kev ua raws li qhov yuav tsum tau ua.
