Classification thiabStudy uaCemented Carbide Tej cuab yeej

Ntu ib

Cov cuab yeej yog ib qho cuab yeej tseem ceeb hauv kev txiav, txawm tias nws yog ib qho cuab yeej siv tshuab zoo tib yam, lossis cov cuab yeej siv tshuab ua lej siab heev (NC), machining center (MC) thiab hloov pauv kev tsim khoom (FMC), yuav tsum tau tso siab rau lub cuab yeej los ua kom tiav qhov txiav. txheej txheem. Kev tsim cov cuab yeej muaj kev cuam tshuam ncaj qha rau kev txhim kho cov khoom tsim tau thiab kev ua haujlwm zoo. Khoom siv, qauv thiab geometry yog peb yam uas txiav txim siab qhov kev ua tau zoo ntawm cov cuab yeej, uas qhov kev ua tau zoo ntawm cov khoom siv ua lub luag haujlwm tseem ceeb.

Raws li ib feem tseem ceeb ntawm cov cuab yeej cuab tam, cemented carbide plays lub luag hauj lwm irreplaceable nyob rau hauv niaj hnub txiav ua. Cemented carbide yog lub siab hardness, refractory hlau carbide (WC, TiC, thiab lwm yam) ntawm micron kev txiav txim ntawm magnitude hmoov, sintered nrog Co, Mo, Ni thiab lwm yam binder hmoov metallurgy khoom, uas cov kub carbide ntsiab lus siab tshaj qhov siab. -speed steel, qhov tso cai txiav kub txog li 800 ~ 1000 ℃, qhov kub ib txwm hardness ntawm HRC89 ~ 93, 760 ℃ hardness ntawm HRC77 ~ 85, txiav ceev txog li 100 ~ 300m / min, deb tshaj li high-speed steel, lub neej yog ob peb zaug mus rau kaum ob lub sij hawm ntawm high-ceev steel, tab sis lub zog thiab toughness tsuas yog 1/30 ~ 1/8 ntawm high-speed steel, tsis muaj peev xwm tiv taus kev poob siab thiab cuam tshuam. Tam sim no nws tau dhau los ua ib qho ntawm cov khoom siv tseem ceeb.

Lub koom haum International rau Standardization (ISO) faib cov carbide rau cov cuab yeej txiav rau hauv 6 pawg:

1. Hom P

Tsim los ntawm WC, Co thiab 5% ~ 30% TiC, tseem hu ua tungsten titanium cobalt carbide, qib YT5, YT14, YT15, YT30, ntawm cov ntsiab lus TiC yog 5%, 14%, 15%, 30%, qhov sib xws Cov ntsiab lus yog 10%, 8%, 6%, 4%, hardness HRA91.5 ~ 92.5. Tnws khoov lub zog yog 900 ~ 1400MPa. TiC cov ntsiab lus nce, Co cov ntsiab lus txo, hardness thiab hnav tsis kam nce, tab sis qhov cuam tshuam toughness txo qis. Cov alloy no muaj siab hardness thiab hnav tsis kam, zoo adhesion thiab diffusion kuj thiab oxidation kuj. Tab sis lub zog dabtsi yog khoov, sib tsoo kev ua tau zoo thiab thermal conductivity txo, qis kub brittleness, toughness tsis zoo. Haum rau kev kub ceev txiav steel khoom. Qhov siab dua Co cov ntsiab lus ntawm cov hlau, qhov zoo dua qhov khoov lub zog thiab cuam tshuam toughness, haum rau roughing. Cov ntsiab lus Co yog txo, qhov hardness, hnav tsis kam thiab kub tsis kam yog nce, thiab nws yog haum rau kev ua tiav. Lub affinity ntawm Ti lub caij nyob rau hauv lub alloy thiab Ti lub caij nyob rau hauv lubua haujlwmyuav tsim ib tug loj sticking tshwm sim, uas yuav ua rau aggravate lub cuab tam hnav nyob rau hauv cov ntaub ntawv ntawm high kub txiav thiab loj kev sib txhuam yam, thiab tsis haum rau ua stainless hlau thiab titanium alloy.

2. Hom K

Tsim los ntawm WC thiab Co, tseem hu ua tungsten cobalt tungsten carbide, feem ntau siv qib YG6, YG8, YG3X, YG6X, muaj Co ntawm 6%, 8%, 3%, 6%. Hardness HRA89 ~ 91.5, khoov zog 1100 ~ 1500GPa. Cov qauv muab faib ua coarse grain, medium grain thiab fine grain. Feem ntau (xws li YG6, YG8) rau cov qauv nplej nruab nrab, cov nplej zoo carbide (xws li YG3X, YG6X) uas muaj cov nqi tib yam ntawm Co tshaj qhov nruab nrab grain hardness,nwshnav tsis kam yog me ntsis siab dua, khoov lub zog thiabtawvyogqis dua. Qhov no hom ntawm alloy toughness, sib tsoo, thermal conductivity yog zoo, haum rau ua nkig cov ntaub ntawv.

3. Hom M

Raws li lub hauv paus ntawm WC, TiC thiab Co, TaC (los yog NbC) yog ntxiv rau cov muaj pes tsawg leeg, ntxiv TaC (NbC) rau YT tuaj yeem txhim kho nws lub zog dabtsi yog khoov, qaug zog, cuam tshuam toughness, kub hardness, lub zog thiab oxidation kuj, hnav tsis kam thiab lwm yam. Feem ntau siv qib YW1 thiab YW2. Nws tuaj yeem siv los ua cov txheej txheem cam khwb cia hlau, cov hlau tsis muaj hlau thiab hlau, tab sis kuj tuaj yeem ua cov txheej txheem kub kub, stainless hlau thiab lwm yam nyuaj.-to-cov ntaub ntawv txheej txheem.

4. Hom H

Feem ntau yog siv los txiav cov ntaub ntawv nyuaj, xws li hardened steel, chilled cam khwb cia hlau thiab lwm yam. Cubic boron nitride PCBN yog teev nyob rau hauv Chav H.

5.Hom S

Siv los txiav cov ntaub ntawv kub-resistant,super-alloys, lwm.

6.Hom H

Siv rau kev txiav cov hlau tsis muaj hlau. Polycrystalline pob zeb diamond PCD muaj nyob rau hauv chav kawm N.

Hauv tsab xov xwm no, kuv tau hais txog rau hom cemented carbide los ntawm kev faib cov cuab yeej txiav, ntu tom ntej, yuav muaj ntau yam tshiab ntawm cemented carbide los xaus, thov tsis txhob.’t tsis nco qab xyuas ib nrab tom ntej yog tias koj txaus siab.

ZZBETTER tsim cov khoom TC / WC nrog ntau tshaj 10 xyoo dhau los, tiv tauj peb yog tias koj muaj kev xav tau ntawm cov khoom siv tungsten carbide lossis cov khoom siv tawv. Tos rau koj qhov kev nug, peb yeej ntseeg tau.