Cemented carbide yog ua los ntawm cov hardness siab, refractory hlau carbide (xws li WC, TiC, TaC, NbC, thiab lwm yam) ntxiv rau hlau binders (xws li cobalt, npib tsib xee, thiab lwm yam) los ntawm cov hmoov metallurgy txheej txheem, nws yog tam sim no lub ntiaj teb no lub zog siab tshaj plaws. alloy, nrog siab hardness (89 ~ 93Hm), siab zog, zoo kub hardness thiab lwm yam ntxwv.Yog li ntawd, nws yog dav siv nyob rau hauv kev tsim khoom ntawm kev tshawb nrhiav laum khoom, pwm thiab cov cuab yeej.Nrog rau kev txhim kho txuas ntxiv ntawm kev txiav tshuab nyob rau hauv cov kev taw qhia ntawm kev kub ceev thiab siab precision, hardness, hnav tsis kam, sib tsoo raug thiab txiav ntug zoo ntawm cemented carbide cov cuab yeej yuav tsum tau siab dua thiab siab dua.Cov nplej loj ntawm cemented carbide kuj tau maj mam tsim los ntawm thawj coarse-grained thiab nruab nrab-grained mus rau nplua-grained, ultra-fine-grained thiab nanocrystal-grained.
Tam sim no, coarse-grained cemented carbide yog dav siv nyob rau hauv geological thiab ntxhia cov cuab yeej, stamping tuag, roj drilling, loj saum hammers rau zus tau tej cov pob zeb diamond, dav hlau cav qhov chaw thiab lwm yam teb;nplua-grained thiab ultra-nplua-grained cemented carbide muaj cov yam ntxwv ntawm siab hardness thiab siab zog, nws yog tsuas yog siv rau kev tsim cov khoom carbide cov cuab yeej, indexable inserts thiab micro drills.
Nrog rau kev ua kom zoo ntawm WC nplej hauv cemented carbide, cov khoom siv kho tshuab xws li hardness thiab lub zog nce, lub sijhawm no cov khoom xws li pob txha toughness poob qis, thiab kev sib tsoo ua haujlwm xws li hnav kuj hloov.
Peb qhov sib txawv ntawm cov pob zeb diamond resin daim ntawv cog lus sib tsoo lub log yog siv los ua cov kev sib tsoo hauv qee qhov kev sib tsoo rau peb cov cemented carbides nrog ntau qhov ntau thiab tsawg: ntxhib, nplua thiab ultra-nplua.Los ntawm kev ntsuas ntawm lub zog ntxaiv, sib tsoo lub log thiab qhov chaw ua haujlwm poob, thiab kev ua haujlwm ntawm qhov chaw roughness ntawm cov txheej txheem sib tsoo thaum lub sij hawm sib tsoo, kev cuam tshuam ntawm cov qoob loo hloov ntawm WC hauv cemented carbide ntawm kev sib tsoo kev ua tau zoo thiab cov nyhuv xws li kev sib tsoo, Sib tsoo ratio, thiab nto roughness yog soj ntsuam.
Los ntawm kev sim, nws tuaj yeem paub tias nyob rau hauv qhov xwm txheej, qhov sib tsoo tsis sib xws ntawm qhov sib tsoo yog tib yam, kev sib tsoo quab yuam thiab kev sib tsoo lub zog siv los ntawm kev sib tsoo coarse-grained cemented carbide ntau dua li cov nplua-grained thiab ultra-fine. -grained, thiab sib tsoo quab yuam ntawm lub nto grinder nce nrog nce ntawm grain loj.Kev sib tsoo piv ntawm ultra-nplua cemented carbide nce nrog nce ntawm cov nplej loj, qhia tias kev hnav tsis kam ntawm hom cemented carbide txo qis nrog qhov nce ntawm cov nplej loj, thiab qhov roughness ntawm hom cemented carbide tom qab zoo sib tsoo hauv qab. tib yam kev sib tsoo txo qis nrog qhov nce ntawm cov nplej loj.
Siv pob zeb diamond sib tsoo lub log yog txoj hauv kev tseem ceeb rau kev tsim cov cuab yeej cemented carbide, kev sib tsoo nto roughness muaj qhov cuam tshuam tseem ceeb ntawm kev ua haujlwm thiab kev pabcuam lub neej ntawm cov cuab yeej cemented carbide, thiab kev sib tsoo tsis yog lub ntsiab tseem ceeb uas cuam tshuam rau qhov roughness ntawm qhov chaw. cemented carbide
WC-Co cemented carbide specimen tau raug rau kev sib tsoo ntawm lub tshuab sib tsoo, thiab cov qauv yog ib qho ultra-fine-grained cemented carbide sintered los ntawm HIP technology.
Nyob rau tib qhov tob, qhov roughness ntawm kev sib tsoo nto ntawm cov qauv tau nce nrog qhov nce ntawm qhov loj me ntawm kev sib tsoo log.Piv nrog rau 150 # kev sib tsoo log, qhov roughness ntawm cov qauv sib tsoo sib txawv tsawg dua thaum sib tsoo nrog 280 # sib tsoo lub log, thaum lub ntsej muag roughness hloov ntau dua thaum sib tsoo nrog W20 sib tsoo log.
Post lub sij hawm: Jan-25-2024