Chidule
MUNDA: ukadaulo wa zitsulo.
CHINTHU: Kupangidwaku kumakhudzana ndi munda wa zitsulo za ufa. Makamaka kumakhudzana ndi kulandira aloyi wolimba wopangidwa ndi sintered pogwiritsa ntchito tungsten carbide. Ingagwiritsidwe ntchito popanga zodulira, zobowola ndi zodulira mphero. Aloyi wolimba uli ndi 80.0-82.0 wt % tungsten carbide ndi 18.0-20.0 wt % ya zomangira. Kumangirira kuli ndi, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; cobalt 36.0-41.0.
ZOMWE ZIMACHITIKA: kulandira aloyi wamphamvu kwambiri.
Kufotokozera
Kupangidwaku kukukhudzana ndi gawo la zitsulo za ufa komanso kupanga zitsulo zolimba zopangidwa ndi tungsten carbide, zomwe zingagwiritsidwe ntchito popanga zodulira, zobowola, mphero ndi zida zina.
Carbide yodziwika bwino yopangidwa ndi tungsten carbide, yokhala ndi 3.0 mpaka 20.0 wt.% Aloyi yolumikizira yokhala ndi, wt.%: Cobalt 20.0-75.0; molybdenum - mpaka 5.0; niobium - mpaka 3.0 [1].
Cholinga cha chipangizochi ndikuwonjezera mphamvu ya aloyi.
Zotsatira zaukadaulo zimapezeka chifukwa chakuti mu alloy yolimba yopangidwa ndi tungsten carbide yokhala ndi 80.0-82.0 wt.% Tungsten carbide ndi 18.0-20.0 wt.% Binder, binder ili ndi, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; cobalt 36.0-41.0.
Mu tebulo. 1 ikuwonetsa kapangidwe ka alloy, komanso mphamvu yayikulu yopindika. Mu tebulo. 2 ikuwonetsa kapangidwe ka ligament.
Gome 1 Zigawo Kapangidwe, kulemera%: chimodzi 2 3 Wolfram carbide 80.0 81.0 82.0 Gulu 20.0 19.0 18.0 Mphamvu Yopindika, MPa ~ 1950 ~ 1950 ~ 1950
Gome 2. Kapangidwe ka Zigawo, kulemera kwake%: chimodzi 2 3 Molybdenum 48.0 49.0 50,0 Niobium 1,0 1,5 2.0 Rhenium 10.0 11.0 12.0 Cobalt 41.0 38.5 36.0
Ufa wa zigawo za alloy umasakanizidwa molingana ndi momwe zasonyezedwera, chisakanizocho chimakanikizidwa pansi pa kukakamizidwa kwa 4.5-4.8 t / cm 2 ndikusiyidwa mu ng'anjo yamagetsi pa kutentha kwa 1300-1330 ° C mu vacuum kwa maola 7-9. Pakusiyidwa, chomangira chimasungunula gawo la tungsten carbide ndikusungunuka. Zotsatira zake zimakhala zinthu zokhuthala zomwe kapangidwe kake kamakhala ndi tinthu ta tungsten carbide tolumikizidwa ndi chomangira.
Magwero a chidziwitso
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Nthawi yotumizira: Juni-17-2022
