Mechanical thiab Physical Properties ntawm Tungsten Carbide

Tungsten carbide yog ib qho alloy uas muaj cov khoom tseem ceeb ntawm cov hmoov xws li tungsten carbide, titanium carbide, thiab hlau hmoov xws li cobalt, npib tsib xee, thiab lwm yam, raws li cov nplaum, tau los ntawm cov hmoov metallurgical txoj kev. Nws yog tsuas yog siv los ua cov cuab yeej siv siab ceev thiab nyuaj, cov khoom siv tawv tawv txiav, thiab cov khoom hnav siab rau kev tsim cov khaub thuas tuag, thiab cov cuab yeej ntsuas.

Mechanical thiab lub cev muaj zog ntawm tungsten carbide

1. High hardness thiab hnav tsis kam

Feem ntau, ntawm HRA86 ~ 93, txo qis nrog kev nce hauv cobalt. Kev hnav tsis kam ntawm tungsten carbide yog nws qhov tseem ceeb tshaj plaws. Hauv kev siv cov tswv yim, carbides yog 20-100 lub sij hawm ntev dua li qee qhov hnav-resistant steel alloys.

2. High anti-bending zog.

Lub sintered carbide muaj lub siab elastic modulus thiab qhov khoov me tshaj plaws tau txais thaum raug khoov quab yuam. Lub zog dabtsi yog khoov ntawm qhov kub ib txwm nyob nruab nrab ntawm 90 thiab 150 MPa thiab qhov siab dua ntawm cobalt, qhov siab dua lub zog tiv thaiv.

3. Corrosion kuj

Nws feem ntau yog siv nyob rau hauv ntau yam tshuaj thiab corrosive ib puag ncig vim carbides feem ntau yog tshuaj inert. Ntau cov tshuaj muaj zog ruaj khov. Carbide cov ntaub ntawv muaj kua qaub-ua hauj, alkali-resistant, thiab tseem ceeb oxidation txawm nyob rau hauv high kub.

4. Torsional zog

Tus nqi ntawm torsion yog ob zaug ntawm high-speed steel thiab carbide yog cov khoom siv rau kev ua haujlwm siab ceev.

5. Compressive zog

Qee qib ntawm cobalt carbide thiab cobalt muaj kev ua tau zoo tshaj plaws nyob rau hauv lub siab siab siab thiab ua tau zoo heev hauv kev siv siab txog li 7 lab kPa.

6. Toughness

Cemented carbide qib nrog cov ntsiab lus siab binder muaj kev cuam tshuam zoo heev.

7. Tsawg kub hnav tsis kam

Txawm hais tias qhov kub tsis tshua muaj siab, cov carbide tseem zoo rau hnav tsis kam thiab muab cov coefficient ntawm kev sib txhuam qis yam tsis siv cov roj nplua nyeem.

8. Thermohardening

Qhov kub ntawm 500 ° C yog qhov tsis hloov pauv thiab tseem muaj qhov nyuaj siab ntawm 1000 ° C.

9. High thermal conductivity.

Cemented carbide muaj thermal conductivity ntau dua li cov hlau kub ceev, uas nce nrog nce ntawm cobalt.

10. Lub coefficient ntawm thermal expansion yog me me.

Nws yog qis dua cov hlau kub ceev, carbon steel, thiab tooj liab, thiab nce nrog kev nce hauv cobalt.

Yog xav paub ntxiv thiab cov ntsiab lus, koj tuaj yeem ua raws peb thiab mus saib: www.zzbetter.com