Dab tsi yog tungsten carbide?

Tungsten carbide yog superhard cov khoom siv ntawm tungsten (w) thiab carbon (c) hauv 1: 1 piv, nrog tshuaj lom neeg WC. Nws lub hardness los ntawm lub pob zeb diamond (mohs hardness (mohs hardness (mohs hardness (mohs hardness (mohs hardness 9), nws muaj hluav taws xob nce mus txog 2870 degree, thiab thermal dhuav thiab thermal ruaj khov. Raws li qhov tsis - ferrous hlau tsum nrog ntau dua 20 xyoo ntawm cov khoom siv kev txawj ntse thiab muaj txiaj ntsig zoo tungsten carbide cov khoom lag luam rau cov neeg siv khoom txawv teb chaws.

Kev Tsim Kho: Los ntawm kev kuaj xyuas mus rau cov tub ntxhais muaj kev lag luam

Kev tshawb nrhiav ntawm tungsten carbide pib nyob rau hauv lub xyoo pua puv 19. German Cov kws tshawb fawb thawj zaug sim hloov nws ua hloov pauv rau cov pob zeb diamond kim, tab sis nws tus brittleness tabkaum ua ntaub ntawv thov. Nws tsis yog txog lub 1920 Los ntawm hmoov metallurgy, nws sintered tungsten carbide nrog cobalt, tsim cov khoom muaj li cas. Qhov kev sib tsoo no tsim lub tungsten carbide ua cov khoom siv tsis tau rau cov cuab yeej, thiab lwm yam kev siv, cementing nws cov xwm txheej ua cov hniav "kev lag luam."

Carbide Qws

 Carbide ntxig

Tungsten carbide cov khoom: qhov zoo tshaj plaws tshuav ntawm hardness thiab tawv

Visually, ntshiab tungsten carbide tshwm li greyish - txiv hmoov dub. Nws mohs hardness ncav cuag 8- 9 (ob tsuas yog pob zeb diamond 10) {12} we} ze li ntawm cov hlau (kwv yees li 1538 degree). Txawm li cas los xij, ntshiab tungsten carbide muaj cov me ntsis drawback: brittleness, ua rau nws tsis tshua muaj kev cuam tshuam rau kev cuam tshuam. Yog li ntawd, tus qauv kev lag luam yog "tungsten carbide alloy," feem ntau txuam nrog cobalt (co) raws li phau ntawv. Qhov no khaws cia li 90% ntawm nws lub hardness thaum ua kom zoo dua kev ua kom tawv. WC-CO ALLOY yog cov khoom siv dav siv hauv cov cuab yeej. Qhov kev sib ntxiv ntawm cobalt tso nws nrog kev nyuaj siab thiab tawv, ua rau nws lub cuab yeej zoo tagnrho rau cov ntaub ntawv tawv tawv.

1. Hnav tsis kam: outlasts steel los ntawm kaum ntawm lub sij hawm

Tungsten Carbide cov khoom pov thawj 20 {{{{1} Cov ris tsho tiv no ntawm cov hlau hlau, tswj nws cov qauv txawm nyob rau hauv high- ceev txhuam. Piv txwv li, thaum lub tshuab hlau hlau, tungsten carbide cov cuab yeej tuaj yeem ua ntau tus txheej txheem sib law liag tsis muaj chipping, whereas cov txheej txheem nrawm nrawm yuav tau hloov tom qab tsuas yog kaum tawm.

2. Siab {- kub kuj: unshakable ruaj khov ntawm huab cua sov heev

Hauv qab no 1000 degree, tungsten carbide lub hardness tseem tsis hloov pauv, ua rau nws zoo tagnrho rau cov cav thiab qib siab- kub tshuab pwm. Piv txwv li, turbine Hniav txheej txheem hauv cov cav dav hlau tungsten carbide kom withstand txuas ntxiv mus rau cov roj supeheated.

3. Corrosion Kuj: tiv thaiv cov kua qaub thiab alkali "

Cov khoom pov thawj carbide tungide tsis kam kam rau feem ntau acids, alkalis, tsis zoo li cov hlau, uas yog nquag muaj xeb. Thiaj li, hauv kev lag luam tshuaj lom neeg, nws yog feem ntau siv rau reactor linings thiab raj xa dej thauj khoom thauj cov kua corrosive.

4. Lub Zog Loj: withstands huab siab heev

Thaum ntshiab tungsten carbide yog nka, cobalt -}} alloy alloy tungsten carbide ua tiav compressive compressive tshaj li 3000 MPa. Qhov no equat for wincture 30 tons ntawm siab ib square centimeter {4 4}}- lub zog steel. Nws yog tshwj xeeb haum rau kev tsim khoom tawg tshuab ntxhua khaub ncaws hauv cov crushers thiab hnav {{} {tiv thaiv cov khoom siv hauv hydraulic txhawb nqa.

Machining Tungsten carbide
Tungsten carbide yog feem ntau tsim los ntawm high - kub sintering hmoov metallurgy. Cov cuab yeej thev naus laus zis txuas ntxiv txuas ntxiv mus ua kom zoo nkauj cov qauv thiab cov khoom siv sib xyaw ua ke, los ntawm kev txhim kho kev ua haujlwm loj los txhim kho cov kev pab cuam ib puag ncig los daws cov khoom lag luam tsis txaus. Nano {{{{}}}}}}}}}}}} Cov khoom siv sib xyaw ua ke yuav yog tshawb xyuas cov hotspots yav tom ntej, ntsuas kev ua haujlwm siab nrog kev ua haujlwm siab.
1. Cov khoom xyaw: meej tswj qhov sib piv
Ua ntej, sib tov tungsten hmoov thiab carbon hmoov li xav tau. Yog hais tias alloying yog qhov xav tau, cobalal hmoov ntxiv. Piv txwv li, cov ntsiab lus cobal ntawm tungsten carbide alloys siv hauv kev cov cuab yeej feem ntau yog 6% -10%. Tsawg heev cobalt yuav ua rau brittleness, thaum ntau dhau yuav txo tus hardness. Yog li ntawd, qhov piv txwv ntawm 0.1% yog qhov tseem ceeb heev.
2. Pob Milling: Sib tsoo rau cov hmoov zoo sib xws
Cov hmoov sib xyaw yog muab tso rau hauv pob zeb thiab milled nrogCarbide PobTau ob peb teev, txawm tias kaum ob teev, kom txog thaum cov hmoov pars yog zoo li 1-5 microns thiab muab sib xyaw kom huv si. Cov kauj ruam no yog qhov tseem ceeb: tus finer thiab ntau zog hnav cov hmoov, qhov ntau ruaj khov ua haujlwm ntawm cov khoom kawg.

3. Nias: tsim lub cev ntsuab

Cov hmoov av hauv av tau muab tso rau hauv cov pwm thiab nias uas siv lub tshuab hydraulic ntawm lub siab ntawm 100-300 mpa los ua cov duab zoo ib yam li cov khoom kawg (piv txwv li cov cuab yeej dawb).

4. Sinining: Siab - kub ua kev

Lub cev ntsuab tau muab tso rau hauv Sintering Rauv thiab ua kom sov rau 1400-1600 Qib nyob rau hauv ib lub tshuab hluav taws xob lossis lub tshuab nqus tsev (kom tiv thaiv oxidation) rau ob peb teev. Ntawm qhov kub siab no, cov hmoov ua diffuse thiab sib txuas, maj mam sib sau ib qho ntom tungsten carbide khoom. Qhov ceev tau tuaj yeem ncav cuag tau tshaj 95% ntawm theoretical tus nqi, loj hlob nws lub zog thiab hardness.

Ntxiv rau cov txheej txheem ib txwm muaj, cov thev naus laus zis tshiab xws li Sparark Sintering (SPS) tuaj yeem txo cov sijhawm sintering los ntawm ob peb teev mus rau feeb thiab txo kev siv hluav taws xob. Txawm li cas los xij, cov qauv no yog kim heev thiab tam sim no feem ntau siv rau qhov siab-}, tungsten carbide Cheebtsam rau cov ntawv thov aerospace).

Cov Kev Siv Ubiquitous: Los ntawm cov teeb tsa ua haujlwm rau cov chav ua haujlwm
1. Txiav thiab ua cov cuab yeej: txawm hais tias tig, milling, lossis drilling, ntau dua 90% ntawm carbide txiav cov cuab yeej yog ua los ntawm tungsten carbide. Piv txwv li, thaum machining nyuaj {{} {}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}}} {}}
2. Hnav - Restings: Siv cov roj pleev cov roj, corrugated carbide, txuas cov khoom siv lub neej los ntawm 3-5 zaug. Piv txwv li, WC-10CO4CR txheej tuaj yeem nce Laum Taum cov ris tsis kam los ntawm 80%.
3. Aerospace thiab siab {{- kub cov khoom siv:} Resist coers thiab turbine hniav hauv cov cav dav hlau. Rocket Cav Nozzle Linbide los tiv thaiv cov khoom kho mob kom haum rau cov cuab yeej kho mob siab thiab kub} Cov cuab yeej siv kub thiab txias} Nws lub hardness thiab corrosion resistance txo cov twj paj thiab paug cov kev pheej hmoo.
5. Tshiab Zog thiab Electronics: Tungsten carbide nanomaterials yog siv nyob rau hauv cov nqi roj catalysts (hloov platinum thiab txo cov nqi, tsav tsheb ntawm kev txhim kho lub zog thiab microelcrutronics.

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Tus nqi tungsten carbide tus nqi hloov hloov tau vim yog muaj kev muaj ntawm Tungsten Ore. Hauv 2024, qhov nqi nruab nrab ntawm lub tsev rau tungsten carbide hmoov yog kwv yees li 300 xee} C co koob hmoov los ntawm $ 90 txog $ 300 rau ib phaus. Txawm hais tias cov nqi siab no, nws cov nqi siab irreplacise kom ntseeg tau tias muaj kev txhawb nqa, cov kev thov hauv qab ntawm cov lag luam tseem ceeb. Yog tias koj muaj lus nug txog cov khoom lag luam cov ntsiab lus lossis catalog, thov tsis txhob yig tiv tauj peb ntawm admin@fanmetalloy.com.