Abstract
FIELDS: metallurgy.
TSHUAJ: kev tsim kho tshiab no muaj feem cuam tshuam nrog kev ua haujlwm ntawm hmoov metallurgy. Tshwj xeeb tshaj yog nws muaj feem cuam tshuam nrog kev tau txais cov hlau nplaum sintered uas yog los ntawm tungsten carbide. Nws siv tau rau kev tsim cov tshuab txiav, tshuab laum thiab tshuab txiav milling. Cov hlau nplaum tawv muaj 80.0-82.0 wt % tungsten carbide thiab 18.0-20.0 wt % ntawm kev khi. Kev khi muaj, wt %: molybdenum 48.0-50.0; niobium 1.0-2.0; rhenium 10.0-12.0; cobalt 36.0-41.0.
TXOJ CAI: tau txais cov hlau muaj zog heev.
Kev piav qhia
Qhov kev tsim kho tshiab no cuam tshuam txog thaj chaw ntawm hmoov metallurgy thiab rau kev tsim cov hlau nplaum tawv sintered raws li tungsten carbide, uas tuaj yeem siv rau kev tsim cov tshuab txiav, tshuab laum, tshuab zeb thiab lwm yam cuab yeej.
Paub cov carbide sintered raws li tungsten carbide, muaj 3.0 txog 20.0 wt.% Ib qho binder alloy uas muaj, wt.%: Cobalt 20.0-75.0; molybdenum - txog li 5.0; niobium - txog li 3.0 [1].
Lub hom phiaj ntawm kev tsim kho tshiab no yog ua kom lub zog ntawm cov hlau nplaum nce ntxiv.
Qhov txiaj ntsig kev siv tshuab tau ua tiav hauv qhov ntawd hauv cov hlau nplaum sintered raws li tungsten carbide uas muaj 80.0-82.0 wt.% Tungsten carbide thiab 18.0-20.0 wt.% Binder, cov binder muaj, wt.%: Molybdenum 48 0-50.0; niobium 1.0-2.0, rhenium 10.0-12.0; cobalt 36.0-41.0.
Hauv lub rooj. 1 qhia txog cov khoom sib xyaw ntawm cov hlau sib xyaw, nrog rau lub zog kawg hauv kev khoov. Hauv lub rooj. 2 qhia txog cov khoom sib xyaw ntawm cov leeg.
Rooj 1 Cov Cheebtsam Muaj pes tsawg leeg, wt.%: ib 2 3 Wolfram carbide 80.0 81.0 82.0 Pawg 20,0 19.0 18.0 Lub zog khoov, MPa ~ 1950 ~ 1950 ~ 1950
Rooj 2. Cov Cheebtsam Muaj pes tsawg leeg, wt.%: ib 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
Cov hmoov ntawm cov khoom sib xyaw tau sib xyaw ua ke hauv cov feem pua qhia, cov khoom sib xyaw raug nias rau hauv qab lub siab ntawm 4.5-4.8 t / cm 2 thiab sintered hauv lub cub hluav taws xob ntawm qhov kub ntawm 1300-1330 ° C hauv lub tshuab nqus tsev rau 7-9 teev. Thaum lub sijhawm sintering, cov binder yaj ib feem ntawm tungsten carbide thiab yaj. Qhov tshwm sim yog cov khoom siv ntom ntom uas nws cov qauv muaj cov khoom tungsten carbide txuas nrog los ntawm cov binder.
Cov ntaub ntawv qhia
1. GB 1085041, C22C 29/06, 1967.
https://patents.google.com/patent/RU2351676C1/en?q=tungsten+carbide&oq=tungsten+carbide+
Lub sijhawm tshaj tawm: Lub Rau Hli-17-2022
