Sintering Njira za Powder Metallurgy (ufa wa metallurgy sintering)
Powder metallurgy sintering njira makamaka monga izi:
Ufa zitsulokumafuna njira zingapo zoyendetsera ntchito monga kupanga ufa, kukanikiza, sintering, ndi post-processing. Pakati pawo, ufa zitsulo sintering ndi mkulu-kutentha mankhwala ndondomeko zinanso Chili chogwirana kapena lotayirira matupi ufa kupititsa patsogolo mphamvu ndi katundu zina. Komabe, chifukwa cha kusiyana, ufa zitsulo sintering njira amagawidwa mu mitundu yambiri.
1. Gawo lamadzimadzi sintering
Ngati pali zigawo ziwiri kapena zingapo mu ufa yaying'ono, ndi sintering akhoza kuchitidwa pamwamba pa malo osungunuka a chigawo china, kotero pang'ono madzi gawo limapezeka mu ufa yaying'ono pa sintering.
2. Pressure sintering
Panthawi ya sintering, kupanikizika kumagwiritsidwa ntchito pa thupi la ufa kuti lipititse patsogolo kachulukidwe kake. KupanikizikakuimbaNthawi zina amafanana ndi kukanikiza kotentha, komwe ndi njira yomwe imaphatikiza kupanga ndi kupukuta ufa kuti mupeze zinthu mwachindunji.
3. Kuyambitsa sintering
M'kati mwa sintering, njira zina zakuthupi kapena zamankhwala zimatengedwa kuti zichepetse kwambiri kutentha kwa sintering ndikufupikitsa nthawi ya sintering, pomwe ntchito ya thupi la sintered imapangidwa bwino ndikuwongolera.
4. EDM sintering
Pamene thupi la ufa limapangidwa ndikukanikizidwa, magetsi olunjika komanso othamanga amagwiritsidwa ntchito kuti apange arc pakati pa tinthu tating'ono tomwe timatulutsa sintering; panthawi ya sintering, kupanikizika kumagwiritsidwa ntchito pang'onopang'ono ku workpiece, ndipo njira ziwiri zopangira ndi sintering zimaphatikizidwa.
Zomwe zafotokozedwa pamwambapa ndi njira zinayi zodziwika bwino za ufa wa metallurgy sintering. Kudzera njira sintering, ndi ufa zitsulo sintering ndondomeko akhoza bwino anamaliza. Chifukwa, mu njira ya ufa zitsulo sintering, particles ufa amakumana thupi ndi mankhwala njira monga kuyenda, kufalikira, kusungunuka, ndi recrystallization, kotero kuti thupi ufa ndi zina densified ndi ena kapena onse pores kuthetsedwa.
Zothandizira zambiri
Nthawi yotumiza: Apr-25-2022