Abstract
MUNDA: metallurgy.
SUBSTANCE: kugadzirwa kunoenderana nehupfu metallurgy munda. Kunyanya ine chekuita nekugamuchira sintered hard alloy pahwaro hwe tungsten carbide. Inogona kushandiswa kugadzira kucheka, zviboorero uye milling cutter. Hard alloy ine 80.0-82.0 wt % tungsten carbide uye 18.0-20.0 wt % yekusunga. Kusunga kunosanganisira, wt%: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; cobalt 36.0-41.0.
EFFECT: kugamuchira kwepamusoro-simba alloy.
Tsanangudzo
Iyo yakagadzirwa ine chekuita nemunda wehupfu simbi uye kugadzirwa kwe sintered hard alloys yakavakirwa pa tungsten carbide, iyo inogona kushandiswa kugadzira ekucheka, zviboorero, zvigayo uye mamwe maturusi.
Inozivikanwa sintered carbide inobva pa tungsten carbide, ine 3.0 kusvika 20.0 wt.% Binder alloy ine, wt.%: Cobalt 20.0-75.0; molybdenum - kusvika 5.0; niobium - kusvika ku3.0 [1].
Chinangwa chekugadzirwa ndechekuwedzera simba re alloy.
Mhedzisiro yehunyanzvi inowanikwa mune iyo mu sintered hard alloy yakavakirwa tungsten carbide ine 80.0-82.0 wt.% Tungsten carbide uye 18.0-20.0 wt.% Binder, binder ine, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; cobalt 36.0-41.0.
Mutafura. 1 inoratidza kuumbwa kwealloy, pamwe chete nesimba rekupedzisira mukukotama. Mutafura. 2 inoratidza kuumbwa kwe ligament.
Tafura 1 Zvikamu Kuumbwa, wt.%: imwe 2 3 Wolfram carbide 80.0 81.0 82.0 Bunch 20,0 19.0 18.0 Bending Strength, MPa ~ 1950 ~ 1950 ~ 1950
Tafura 2. Zvinoumba Maumbirwo, wt.%: imwe 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
Iyo hupfu yezvikamu zvealloy inosanganiswa muzvikamu zvakaratidzwa, musanganiswa unomanikidzwa pasi pekumanikidzwa kwe4.5-4.8 t / cm 2 uye kunyura muvira remagetsi pakupisa kwe1300-1330 ° C muvhavha kwemaawa 7-9. Munguva yekupisa, binder inonyungudutsa chikamu che tungsten carbide uye inonyunguduka. Mhedzisiro yacho chinhu chakakora chine chimiro chine tungsten carbide zvidimbu zvakabatanidzwa nebhainda.
Zvinyorwa zvemashoko
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Nguva yekutumira: Jun-17-2022
