Precipitation-Hardening Stainless Steel ndi gulu lazitsulo zosapanga dzimbiri zomwe zimagwira ntchito yochizira kutentha yotchedwa precipitation hardness kuti iwonjezere mphamvu ndi kuuma kwawo. Njirayi imaphatikizapo kupanga ma precipitates abwino (tinthu tating'onoting'ono) mkati mwa microstructure yachitsulo, yomwe imalepheretsa kusuntha kwa dislocation, zomwe zimapangitsa kuwonjezeka kwa zinthu zamakina monga mphamvu ndi kuuma.
Zofunika Kwambiri pa Mvula-Kuumitsa Zitsulo Zosapanga dzimbiri:
Kulimba Kwambiri ndi Kulimbana ndi Zitsulo: Zitsulo zosapanga dzimbiri zowumitsa mpweya zimasunga zitsulo zosapanga dzimbiri zomwe sizingafanane ndi zitsulo zosapanga dzimbiri pomwe zimapezanso mphamvu zambiri pochiritsa kutentha.
Njira Yochizira Kutentha:
1.Solution Heat Chithandizo: Chitsulocho chimatenthedwa ndi kutentha kwakukulu (nthawi zambiri kuzungulira 1000 ° C mpaka 1100 ° C) kuti asungunuke zinthu zowonongeka (monga aluminiyamu, mkuwa, kapena niobium) mu njira yolimba.
2.Kukalamba: Pambuyo pozimitsa (kuzizira kofulumira), chitsulocho chimakalamba pa kutentha kochepa (kuzungulira 500 ° C mpaka 700 ° C). Izi zimalimbikitsa mpweya wa kuumitsa particles kuti obstruct dislocation kuyenda, potero kulimbikitsa zakuthupi.
3.Kupanga: Zitsulo zosapanga dzimbiri zomwe zimalimba ndi mvula nthawi zambiri zimaphatikizidwa ndi zinthu monga mkuwa, aluminiyamu, niobium, titaniyamu, kapena molybdenum, zomwe zimathandizira kugwa kwamagawo olimba omwe amawonjezera mphamvu yachitsulo.
Magiredi: Chitsanzo chodziwika bwino cha chitsulo chosapanga dzimbiri cholimba cha mvula ndi 17-4 PH chitsulo chosapanga dzimbiri, chomwe chili ndi chitsulo, chromium, faifi tambala, ndi mkuwa. Magiredi ena, monga 15-5 PH ndi 13-8 Mo, amagwiritsidwanso ntchito nthawi zambiri pamapulogalamu omwe amafunikira kuphatikiza mphamvu zambiri komanso kukana dzimbiri.
Mapulogalamu: Zitsulo zosapanga dzimbiri zolimba kwambiri ndi mpweya zimagwiritsidwa ntchito kwambiri m'mafakitale omwe mphamvu zambiri komanso kukana dzimbiri ndizofunikira, monga:
1. Zamlengalenga: Zida za ndege, masamba a turbine, zomangira.
2.Zachipatala: Zida zopangira opaleshoni, implants.
3.Chemical processing: Mapampu, ma valve, ndi zinthu zina zomwe zimawonekera kumadera ovuta.
4. Marine: Zomwe zimawonekera kumadera amadzi amchere.
1.Ubwino:
Mphamvu zazikulu zofananira ndi zida zina zachitsulo.
Kukana kwabwino kwa dzimbiri ndi oxidation, makamaka m'malo otentha kwambiri komanso ankhanza.
Maonekedwe abwino ndi machinability mumkhalidwe wothandizidwa ndi yankho.
2.Zoyipa:
Zitha kukhala zodula kuposa zitsulo zina zosapanga dzimbiri chifukwa cha zinthu zophatikizika ndi kukonza.
Kukalamba pa kutentha kwakukulu kwa nthawi yaitali kungayambitse kusokonezeka ngati sikusamalidwe bwino.
Chitsanzo Magiredi a Mvula-Kuumitsa Zitsulo Zosapanga dzimbiri:
1.17-4 PH (yomwe imadziwikanso kuti 630): Ili ndi pafupifupi 17% chromium, 4% nickel, ndi 4% yamkuwa. Kalasi iyi ndi imodzi mwazogwiritsidwa ntchito kwambiri ndipo imapereka kuphatikiza kwamakina abwino komanso kukana dzimbiri.
2.15-5 PH: Zofanana ndi 17-4 PH koma zolimba pang'ono komanso kukana kwa dzimbiri, zomwe zimagwiritsidwa ntchito nthawi zambiri m'mafakitale apamlengalenga ndi mankhwala.
3.13-8 Mo: Muli pafupifupi 13% chromium, 8% faifi tambala, ndi molybdenum, kupereka kupsinjika kwapamwamba kukana kusweka kwa dzimbiri.
Mwachidule, zitsulo zosapanga dzimbiri zowumitsa mvula ndi zinthu zosunthika kwambiri zomwe zimaphatikiza ubwino wa zitsulo zosapanga dzimbiri zosagwira ndi zina zamakina monga mphamvu zambiri, zomwe zimawapangitsa kukhala oyenera kugwiritsidwa ntchito movutikira m'mafakitale angapo.
