Lub pob zeb diamond ntu yog lub cev ua haujlwm ntawm pob zeb diamond saw hniav. Lub taub hau ntawm lub pob zeb diamond saw hniav yog tsim los ntawm pob zeb diamond thiab matrix binder. Pob zeb diamond yog cov khoom siv superhard uas ua raws li kev txiav ntug. Lub matrix binder plays lub luag haujlwm ntawm kev kho pob zeb diamond. Nws yog tsim los ntawm cov hmoov hlau yooj yim lossis hlau alloy hmoov Cov Khoom Siv, cov khoom sib txawv hu ua cov qauv, thiab cov qauv sib txawv ntawm cov pob zeb diamond raws li kev siv sib txawv.

1. Kev xaiv pob zeb diamond particle loj

Thaum lub pob zeb diamond particle loj yog ntxhib thiab ib qho me me, cov saw hniav lub taub hau yog ntse thiab cov sawing efficiency siab, tab sis lub zog dabtsi yog khoov ntawm pob zeb diamond agglomeration txo; Thaum lub pob zeb diamond particle loj yog zoo los yog cov ntxhib thiab nplua particle loj sib xyaw, cov saw hniav lub taub hau muaj cov kav ntev, tab sis tsawg dua. Ua raws li cov ntsiab lus saum toj no rau hauv kev xav, nws yog qhov tsim nyog xaiv lub pob zeb diamond particle loj ntawm 50/60 mesh.

2. Kev xaiv ntawm pob zeb diamond faib concentration

Nyob rau hauv ib tug tej yam ntau yam, thaum lub pob zeb diamond concentration hloov ntawm qis mus rau siab, lub sharpness thiab txiav efficiency ntawm lub sawb yuav maj mam txo, thaum cov kev pab cuam lub neej yuav maj prolong; tab sis yog tias qhov concentration siab dhau lawm, cov sawb yuav dhau los ua blunt. Thiab siv cov concentration tsawg, coarse particle loj, cov efficiency yuav zoo dua. Siv cov haujlwm sib txawv ntawm txhua qhov ntawm lub taub hau txiav thaum lub sijhawm sawing, qhov sib txawv yog siv (uas yog, qhov qis dua tuaj yeem siv rau hauv nruab nrab txheej hauv peb txheej lossis ntau txheej txheej), thiab qhov nruab nrab zawj yog tsim rau lub taub hau cutter thaum lub sij hawm sawing txheej txheem, uas muaj ib tug tej yam nyhuv. Nws yog qhov zoo los tiv thaiv cov saw hniav los ntawm deflecting, yog li txhim kho cov txheej txheem pob zeb zoo.

3. Xaiv lub zog pob zeb diamond

Lub zog ntawm pob zeb diamond yog qhov taw qhia tseem ceeb los xyuas kom meej qhov kev ua tau zoo. Lub zog siab dhau lawm yuav ua rau cov siv lead ua tsis yooj yim tawg, cov nplej abrasive yuav polished thaum siv, thiab cov ntse yuav txo qis, ua rau cov cuab yeej ua haujlwm tsis zoo; thaum lub pob zeb diamond lub zog tsis txaus, nws yuav yooj yim tawg tom qab raug cuam tshuam, thiab nws yog ib qho nyuaj rau ris lub luag haujlwm hnyav ntawm kev txiav. Yog li ntawd, lub zog yuav tsum tau xaiv ntawm 130-140N

4. Kev xaiv ntawm binder theem

Qhov kev ua tau zoo ntawm cov saw hniav tsis yog nyob ntawm pob zeb diamond nkaus xwb, tab sis nyob ntawm kev ua haujlwm tag nrho ntawm cov khoom sib xyaw ntawm cov pob zeb diamond saw hniav thiab lub taub hau cutter tsim los ntawm kev sib koom tes ntawm cov ntaub ntawv. Rau cov ntaub ntawv pob zeb mos xws li marble, cov khoom siv ntawm lub taub hau cutter yuav tsum muaj tsawg, thiab cov ntaub ntawv tooj liab tuaj yeem siv tau. Txawm li cas los xij, sintering kub ntawm tooj liab-raws li binder yog tsawg, lub zog thiab hardness yog tsawg, lub toughness yog siab, thiab lub zog sib txuas nrog pob zeb diamond yog tsawg. Thaum tungsten carbide (WC) ntxiv, WC lossis W2C yog siv los ua cov pob txha hlau, nrog rau qhov tsim nyog ntawm cobalt los txhim kho lub zog, hardness thiab kev sib txuas cov yam ntxwv, thiab ib qho me me ntawm Cu, Sn, Zn thiab lwm yam hlau nrog tsawg. melting point thiab tsawg hardness yog ntxiv rau kev sib koom ua ke. Qhov loj me me ntawm cov khoom xyaw tseem ceeb yuav tsum zoo dua 200 mesh, thiab qhov loj me ntawm cov khoom xyaw ntxiv yuav tsum zoo dua 300 mesh.

5. Kev xaiv cov txheej txheem sintering

Raws li qhov kub thiab txias, qhov degree ntawm qhov ntom ntawm cov carcass nce, thiab lub zog flexural kuj nce, thiab nrog rau kev ncua sij hawm tuav, lub zog flexural ntawm cov pob zeb dawb paug thiab pob zeb diamond agglomerates ua ntej nce thiab tom qab ntawd txo. Sintering ntawm 800 ° C rau 120s kom tau raws li qhov yuav tsum tau ua.