Aloyi 625 / UNS N06625 / W.NR. 2.4856
Kufotokozera
Aloyi 625 ndi nickel-chromium-molybdenum alloy yomwe imagwiritsidwa ntchito chifukwa cha mphamvu zake zambiri, kulimba kwambiri komanso kukana kwa dzimbiri. Mphamvu ya alloy 625 imachokera ku kuuma kwa molybdenum ndi niobium pa matrix a nickel-chromium. Ngakhale aloyiyo idapangidwa kuti ipangitse kutentha kwakukulu, kapangidwe kake kophatikizana kwambiri kumaperekanso gawo lalikulu la kukana dzimbiri.
Makampani ndi Mapulogalamu
Alloy 625 amagwiritsidwa ntchito m'mafakitale osiyanasiyana, kuphatikizapo magalimoto, zam'madzi, zakuthambo, mafuta ndi gasi, kukonza mankhwala ndi nyukiliya. Zomwe zimagwiritsidwa ntchito pomaliza zimaphatikizanso zosinthira kutentha, ma bellows, zolumikizira zowonjezera, makina otulutsa mpweya, zomangira, zolumikizira mwachangu ndi zina zambiri zomwe zimafunikira mphamvu ndi kukana kumadera akuwononga kwambiri.
Kukaniza Corrosion
Aloyi 625 ali ndi kukana zabwino makutidwe ndi okosijeni ndi makulitsidwe pa kutentha kwambiri. Pa 1800 ° F, kukana makulitsidwe kumakhala chinthu chofunikira kwambiri pantchito. Ndiwopambana kuposa ma aloyi ambiri otentha otentha pansi pa kutentha kwa cyclic ndi kuzizira. Kuphatikizika kwa aloyi mu aloyi 625 kumamuthandiza kupirira mitundu ingapo yazinthu zowononga kwambiri. Pafupifupi palibe kuukira m'malo ocheperako, monga madzi amchere ndi am'nyanja, malo osalowerera a pH, ndi media zamchere. Zomwe zili mu chromium mu aloyiyi zimapangitsa kuti zisawonongeke kwambiri ndi malo otsekemera. Kuchuluka kwa molybdenum kumapangitsa aloyi 625 kugonjetsedwa kwambiri ndi pitting ndi dzimbiri.
Kupanga ndi Kuchiza Kutentha
Aloyi 625 ikhoza kupangidwa pogwiritsa ntchito njira zosiyanasiyana zozizira komanso zotentha. Alloy 625 imakana kusinthika pakutentha kogwira ntchito, chifukwa chake katundu wokwera amafunikira kuti apange zinthuzo. Kupanga kotentha kuyenera kuchitidwa mkati mwa kutentha kwa 1700 ° mpaka 2150 ° F. Panthawi yozizira, ntchito zakuthupi zimauma mofulumira kuposa zitsulo zosapanga dzimbiri za austenitic. Aloyi 625 ili ndi njira zitatu zochiritsira kutentha: 1) njira yothetsera 2000/2200 ° F ndi kuzimitsa mpweya kapena mofulumira, 2) kutsekemera 1600/1900 ° F ndi kuzimitsa mpweya kapena mofulumira ndi 3) kuchepetsa nkhawa pa 1100/1500 ° F ndi kuzimitsa mpweya. . Zomwe zimapangidwira (giredi 2) zimagwiritsidwa ntchito nthawi zambiri pamapulogalamu opitilira 1500 ° F pomwe kukana kukwawa ndikofunikira. Zofewa zofewa (giredi 1) zimagwiritsidwa ntchito kwambiri pochepetsa kutentha ndipo zimakhala ndi kuphatikiza kokwanira kwamphamvu komanso kuphulika.
Nthawi yotumiza: Apr-26-2020