DUPLEX Stainless zitsulo giredi NDI STANDARD

DUPLEX Stainless zitsulo giredi NDI STANDARD

•Lean Duplex SS – nickel yapansi ndipo palibe molybdenum – 2101, 2102, 2202, 2304
Duplex SS – faifi tambala wapamwamba ndi molybdenum – 2205, 2003, 2404
•Super Duplex – 25Chromium ndi nickel apamwamba ndi molybdenum “plus” – 2507, 255 ndi Z100
•Hyper Duplex – More Cr, Ni, Mo ndi N – 2707

Katundu Wamakina:
• Duplex Stainless Steels ali ndi mphamvu pafupifupi kuwirikiza kawiri kuwirikiza kwa zokolola zawo zamagulu austenitic.
• Izi zimathandiza opanga zida kuti agwiritse ntchito zida zoyezera pang'ono popanga zombo!

Ubwino wachitsulo chosapanga dzimbiri cha Duplex:
1. Poyerekeza ndi chitsulo chosapanga dzimbiri cha austenitic
1) Mphamvu zokolola zimaposa kuwirikiza kawiri kuposa chitsulo chosapanga dzimbiri cha austenitic, ndipo chimakhala ndi kulimba kokwanira kwa pulasitiki komwe kumafunikira pakuwumba.Kukula kwa tanki kapena chotengera chopondereza chopangidwa ndi chitsulo chosapanga dzimbiri cha duplex ndi 30-50% chotsika kuposa cha chitsulo chosapanga dzimbiri cha austenitic chomwe chimagwiritsidwa ntchito kwambiri, chomwe chimapindulitsa kuchepetsa mtengo.
2) Imalimbana kwambiri ndi kupsinjika kwa dzimbiri, makamaka m'malo okhala ndi ma chloride ayoni, ngakhale aloyi amtundu wa duplex wokhala ndi aloyi otsika kwambiri amatha kukana kupsinjika kusweka kwa dzimbiri kuposa chitsulo chosapanga dzimbiri cha austenitic.Stress corrosion ndi Vuto lodziwika bwino lomwe chitsulo chosapanga dzimbiri cha austenitic chimakhala chovuta kulithetsa.
3) Chitsulo chosapanga dzimbiri chodziwika bwino cha 2205 chomwe chimagwiritsidwa ntchito m'ma media ambiri chimakhala ndi kukana kwa dzimbiri kuposa chitsulo chosapanga dzimbiri cha 316L, pomwe chitsulo chosapanga dzimbiri cha duplex chimakhala ndi kukana kwa dzimbiri.M'ma media ena, monga acetic acid ndi formic acid.Itha kusinthanso zitsulo zosapanga dzimbiri za austenitic komanso ngakhale ma aloyi osachita dzimbiri.
4) Imakhala ndi kukana bwino kwa dzimbiri komweko.Poyerekeza ndi zitsulo zosapanga dzimbiri za austenitic zomwe zili ndi aloyi zomwezo, zimakhala bwino kukana kuvala komanso kutopa kwa dzimbiri kuposa chitsulo chosapanga dzimbiri cha austenitic.
5) Chitsulo chosapanga dzimbiri cha austenitic chili ndi gawo lochepa la kukula kwa mzere ndipo ili pafupi ndi chitsulo cha carbon.Ndizoyenera kulumikizidwa ndi chitsulo cha kaboni ndipo zimakhala ndi ukadaulo wofunikira, monga kupanga mbale zophatikizika kapena zomangira.

2. Poyerekeza ndi chitsulo chosapanga dzimbiri cha ferritic, ubwino wa duplex zitsulo zosapanga dzimbiri ndi motere:
1) Makina ophatikizika amakina ndi apamwamba kuposa achitsulo chosapanga dzimbiri cha ferritic, makamaka kulimba kwa pulasitiki.Osakhudzidwa ndi brittleness ngati chitsulo chosapanga dzimbiri cha ferritic.
2) Kuphatikiza pa kupsinjika kwa dzimbiri, kukana kwa dzimbiri komweko kumaposa chitsulo chosapanga dzimbiri cha ferritic.
3) Kuzizira kogwira ntchito komanso kuzizira kumakhala bwino kuposa chitsulo chosapanga dzimbiri cha ferritic.
4) Kuwotcherera ndikwabwinoko kuposa chitsulo chosapanga dzimbiri cha ferritic.Nthawi zambiri, palibe chithandizo cha kutentha chomwe chimafunika mukatha kutentha popanda kuwotcherera.
5) Mitundu yogwiritsira ntchito ndi yotakata kuposa ya chitsulo chosapanga dzimbiri cha ferritic.

Kugwiritsa ntchitoChifukwa champhamvu kwambiri yachitsulo cha duplex, chimakonda kusunga zinthu, monga kuchepetsa makulidwe a khoma la chitoliro.Kugwiritsa ntchito SAF2205 ndi SAF2507W monga zitsanzo.SAF2205 ndi yoyenera kugwiritsidwa ntchito m'malo okhala ndi chlorine ndipo ndiyoyenera kugwiritsidwa ntchito poyenga kapena njira zina zosakanikirana ndi kloride.SAF 2205 ndiyoyenera kugwiritsidwa ntchito posinthanitsa ndi kutentha komwe kumakhala ndi klorini yamadzi kapena madzi amchere ngati malo ozizira.Zinthuzi ndizoyeneranso kusungunula njira za sulfuric acid ndi ma organic acid ndi zosakaniza zake.Monga: mapaipi amafuta m'makampani amafuta ndi gasi: kutulutsa mafuta osakanizika m'malo oyeretsera, kuyeretsa mpweya wokhala ndi sulfure, zida zopangira madzi oyipa;makina ozizira pogwiritsa ntchito madzi amchere kapena mankhwala okhala ndi chlorine.

Kuyesa Zinthu:
SAKY STEEL onetsetsani kuti zida zathu zonse zimayesedwa mosamalitsa musanazitumize kwa makasitomala athu.

• Kuyesa Kwamakina Monga Tensile of Area
• Mayeso Olimba
• Chemical Analysis - Spectro Analysis
• Kuzindikiritsa Zinthu Zabwino - Kuyesa kwa PMI
• Mayeso a Flattening
• Micro ndi MacroTest
• Pitting Resistance Test
• Flaring Test
• Mayeso a Intergranular Corrosion (IGC).

KULANDIRA FUNSO.