Kodi njira yochiritsira yotentha kwambiri ya beryllium bronze imagwira ntchito bwanji?

Beryllium bronzendi momwe kukalamba mpweya kumalimbitsa aloyi.Njira yochizira kutentha yamphamvu kwambiri ya beryllium bronze ndikusunga kutentha kwa 760-830 ℃ kwa nthawi yoyenera (osachepera 60min pa mbale iliyonse ya 25mm), kotero kuti solute atomu beryllium imatha kusungunuka mu mkuwa masanjidwewo kupanga nkhope pakati kiyubiki latisi α Gawo supersaturated olimba njira.Kenako, kusunga kutentha pa 320 ~ 340 ℃ kwa 2 ~ 3h kuti amalize kusungunuka kwa mpweya, kupanga γ′ Phase (CuBe2 metastable gawo).Gawoli limagwirizana ndi thupi la kholo, zomwe zimapangitsa kuti pakhale kupanikizika komanso kulimbitsa matrix.

Kodi njira yochiritsira yotentha kwambiri ya beryllium bronze imagwira ntchito bwanji?

The mmene kutentha mankhwala ndondomeko mkulu madutsidwe beryllium mkuwa ndi kusunga kutentha pa 900 ~ 950 ℃ kwa nthawi kumaliza olimba njira yothetsera, ndiyeno kusunga kutentha pa 450 ~ 480 ℃ kwa 2 ~ 4h kuzindikira kuvunda. ndondomeko yamvula.Chifukwa cha kuwonjezera cobalt kapena faifi tambala mu aloyi, ndi kupezeka kulimbitsa particles ambiri intermetallic mankhwala opangidwa ndi cobalt kapena faifi tambala ndi beryllium.Pofuna kupititsa patsogolo mphamvu ya aloyi, aloyi nthawi zambiri ozizira ntchito kumlingo wina pambuyo njira yothetsera kutentha mankhwala ndi pamaso ukalamba kutentha mankhwala, kuti tikwaniritse mabuku kulimbikitsa zotsatira ozizira ntchito kuumitsa ndi zaka kuumitsa.Kugwira ntchito kwake kozizira nthawi zambiri sikudutsa 37%.Njira yothetsera kutentha imayenera kuchitidwa ndi wopanga alloy.Wosuta adzakhala nkhonya yankho kutentha ankachitira ndi ozizira adagulung'undisa Mzere m'zigawo, ndiyeno kuchita kudzikonda ukalamba kutentha mankhwala kupeza mkulu mphamvu kasupe zigawo zikuluzikulu.

M'zaka zaposachedwa, China yapanganso Mzerewu ndi chithandizo cha kutentha kwaukalamba chomalizidwa ndiopanga mkuwa wa beryllium, yomwe imatha kugundidwa mwachindunji ndi makasitomala.Pambuyo pa bronze ya beryllium yathandizidwa ndi njira zosiyanasiyana, zilembo za alloy state ku Europe ndi United States ndi: A amayimira kuti solid solution annealed state.Aloyiyo imakhala yofewa kwambiri ndipo ndiyosavuta kupangidwa ndi kupondaponda.Imafunikira chithandizo chowonjezera chozizira kapena chithandizo cholimbikitsira ukalamba.H amayimira kuuma kwa ntchito (zovuta).Tengani pepala lozizira, mwachitsanzo, 37% ya digiri ya kuzizira yogwira ntchito imakhala yolimba kwambiri (H), 21% ya digiri yozizira yogwira ntchito ndi semi hard state (1/2H), ndipo 11% ya digiri yozizira yogwira ntchito ndi 1. / 4 cholimba (1/4H).Ogwiritsa ntchito amatha kusankha zofewa zoyenera komanso zolimba molingana ndi zovuta za mawonekedwe a magawo omwe amakhomeredwa.T amatanthauza chithandizo cha kutentha pambuyo pa ukalamba.Ngati njira ya deformation ndi ukalamba kulimbikitsa kwambiri kuvomerezedwa, dziko lake likuimiridwa ndi HT.


Nthawi yotumiza: Oct-14-2022