Tau ntev heev, ntau tus neeg hauv kev lag luam tau ntseeg tias kev ua kom carbide sungride yog tungsten steel. Niaj hnub no peb yuav tham txog qhov sib txawv ntawm cemented carbide thiab tungsten steel.
01 carbide
Cemented carbide yog ua los ntawm nyuaj sib txuas ntawm refractory hlau thiab sib txuas hlau hlau los ntawm hmoov metallurgy process. Nws yog ib cov khoom siv alloy nrog kev tawv tawv heev. Tungsten carbide (WC) yog lub ntsiab tivthaiv ntawm cemented carbide, cov nyiaj txiag rau 70% rau 97% ntawm tag nrho cov muaj pes tsawg leeg; Cov hlau sib txuas tau siv los ua cov alloy, thiab nws cov ntsiab lus feem ntau yog 3% mus rau 30%. Thaum lub sij hawm Sintering cov txheej txheem, nws tuaj yeem nyob ib puag ncig tungride hmoov thiab muab nws nruj nreem ua ke, thiab tom qab txias, nws dhau los ua cov cemented carbide.
Yog li ntawd, feem ntau yog siv cov paemented carbide tau muab faib ua peb pawg raws li kev sib xyaw ua ke: Tungsten-Cobalt-titanium-TANTALUM (NIOBIUM). Cov neeg siv dav dav siv tau hloov tshiab ntawm cov carbides hauv kev tsim khoom yog tupsten-cobalt-cobalt-cobalt-cobalt-tungsten-cobalt.
1) Tungsten-Cobalt Cemented Carbide
Lub Cheebtsam tseem ceeb yog tungsten carbide (WC) thiab cobalt. Lub npe lag luam yog sawv cev ntawm tus lej yg (prefixed los ntawm Suav pinyin ntawm "nyuaj" thiab "cobalt"), ua raws li cov lej feem pua ntawm cov ntsiab lus cobalt. Piv txwv li, YG6 sawv cev rau lub tungsten-cobalt cemened carbide nrog cov ntsiab lus cobal ntawm 6% thiab lub tungsten carbide cov ntsiab lus ntawm 94%.
2) tungsten titanium cobalt carbide
Lub hauv paus tseem ceeb yog tungsten carbide (WC), Titanium Carbide (Tic) thiab cobalt. Lub npe lag luam yog sawv cev los ntawm cov code yt (prefix ntawm Suav pinyin ntawm "nyuaj" thiab "titanium"), ua raws li qhov feem pua ntawm cov ntsiab lus carbide carbide. Piv txwv li, yt15 sawv cev rau lub tungsten-titanium-cobalt carbide nrog lub titanium carbide cov ntsiab lus ntawm 15%.
3) tungsten titanium tantalum (niobium) carbide
Hom kev tso cai no yog hu ua kev tso cai ua ke universal cemented carbide lossis universal cemented carbide. Nws lub ntsiab lus tseem ceeb yog tungsten carbide (WC), Titanium Carbide (Tantalum Carbide (TAC) lossis NBC) thiab cobalt. Lub npe lag luam yog sawv cev los ntawm cov code yw (prefixed los ntawm Suav pinyin ntawm "nyuaj" thiab "wan") tom qab los ntawm ib tug lej sib xeem.
Feem ntau siv cemented carbide qhab nia thiab cov khoom siv tshuaj lom neeg:
NCO TSEG: "X" Tom qab qib qhia tau nplua-grained alloy, "c" qhia coarse-grained alloy-grained alloy, thiab tsis muaj ib yam dab tsi qhia tias dav dav.
02 Qhov sib txawv ntawm tungsten steel thiab cemented carbide
Feem ntau hais lus, tungsten steel yog smelted los ntawm kev ntxiv tungsten raw cov ntaub ntawv rau Molten hlau siv cov txheej txheem steelmaking. Nws tseem hu ua cov hlau ceev lossis cuab yeej hlau. Nws cov ntsiab lus tungsten feem ntau yog 15% txog 25%. Ntxiv rau kev siv cov qauv smelting los tsim cov tshuab hluav taws xob siab, nws muaj cov tshuaj tua hluav taws xob siab thiab kev kho kom sov los ntawm kev sib cais ua kom sov los ntawm cov qauv smelting.
Cemented carbide yog ua los ntawm sintering tungsten carbide ua lub cev tseem ceeb thiab cobalt lossis lwm txoj kev sib txuas lus siv cov hmoov metallurgy. Nws lub tungsten cov ntsiab lus feem ntau yog 80%.
Tsuas yog muab tso, txhua yam muaj ntau tshaj li HRC65 tuaj yeem hu ua mob carbide, yog li tungsten steel belongs kom cemented carbide; Tab sis nruj me ntsis kev hais lus, cemented carbide tsis tas yuav tungsten steel.
