Lub binder yog cov khoom uas khi cov khoom abrasive los ua ntau yamsib tsoo log. Hom thiab cov khoom ntawm daim ntawv cog lus txiav txim siab lub zog, hardness, kub tsis kam thiab corrosion kuj ntawm lub sib tsoo log. Tsis tas li ntawd, lub binder kuj muaj qee yam cuam tshuam rau ntawm qhov chaw roughness thiab sib tsoo kub.
Lub binder feem ntau yog nyob ntawm nws tus kheej cov khoom. Muaj ntau ntau hom binders, thiab feem ntau siv binders yog cov hauv qab no:
1. Ceramic Binder v ( qub qauv code A)
Ceramic binder yog ib hom inorganic binder, uas yog dav siv. Ceramic bonding abrasives feem ntau yog siv rau kev sib tsoo sib tsoo, semi-zoo sib tsoo, molding sib tsoo nrog thaj tsam loj, sib tsoo ntawm superhard abrasive sintered lub cev, thiab lwm yam. Sib tsoo log ntawm ntau yam particle loj, hardness, qauv, duab thiab loj tuaj yeem ua los ntawm kev siv. ceramic daim ntawv cog lus. Nws cov txiaj ntsig tseem ceeb yog: tus nqi qis, kev ua haujlwm ruaj khov, tsis cuam tshuam los ntawm huab cua qhuav thiab ntub, kub hloov pauv thiab lub sijhawm cia; Kev ua haujlwm kub zoo, ntse txiav, kev sib tsoo siab, kev sib tsoo tsis yooj yim rau cua sov thiab txhaws, me me thermal expansion; Zoo corrosion kuj; Lub adhesion ntawm daim ntawv cog lus ceramic thiab cov khoom abrasive yog qhov loj, kev sib tsoo lub log yog me me, thiab lub contour ntawm lub log sib tsoo tuaj yeem tswj tau zoo dua, thiab kev ua haujlwm raug tuaj yeem tswj tau yooj yim. Kev sib tsoo log ua los ntawm cov ceramic ua ke nrog cov pos tuaj yeem tsis tsuas yog qhuav sib tsoo, tab sis kuj hloov mus rau kev sib tsoo nrog ntau yam coolant.
Txawm li cas los xij, vim lub brittleness ntawm daim ntawv cog lus yog loj thiab elasticity tsis zoo, nws tsis tuaj yeem tiv taus qhov loj ntawm qhov sib tw thiab lub zog quab yuam, yog li nws tsis tuaj yeem siv los tsim cov wafer sib tsoo log nrog nyias tuab. Tsis tas li ntawd, vim muaj kev sib txhuam thiab cov cua sov uas tsim los ntawm cov ntawv cog lus ceramic thaum sib tsoo, thaum lub log sib tsoo lossis cov nyiaj sib tsoo tsis raug xaiv, nws yog ib qho yooj yim ua rau cov khoom ua haujlwm kub hnyiab thiab tawg.
2. Resin Binder B ( qub qauv code S)
Resin bond yog ib daim ntawv cog lus organic. Cov resin daim ntawv cog lus nws tus kheej muaj zoo elasticity, cuam tshuam tsis kam thiab polishing nyhuv. Lub log sib tsoo ua los ntawm cov ntawv cog lus muaj zog thiab tuaj yeem tsim cov kev sib tsoo ceev nrog kev sib tsoo ceev siab tshaj 52m / s thiab sib tsoo cov log sib tsoo heev. Tsis tas li ntawd, cov resin abrasive muaj kev ua haujlwm zoo ntawm tus kheej thiab tsis yooj yim rau ntsaws; Tom qab hnav khaub ncaws tsis tshua muaj hnav, kev sib tsoo efficiency siab, kev sib tsoo roughness tsawg, sib tsoo kub yog tsawg. Vim hais tias ntawm no series ntawm superior zog ntawm resin bonded abrasives, lawv yog dav siv nyob rau hauv superhard abrasives. Resin pob zeb diamond abrasives yog siv rau semi-zoo sib tsoo thiab zoo sib tsoo ntawm cemented carbide thiab steel-bonded cemented carbide workpieces thiab qee cov ntaub ntawv tsis yog xim hlau. Resin cubic desalination boron sib tsoo cov cuab yeej yog siv rau siab vanadium siab ceev steel sib tsoo, cuab yeej steel, tuag steel stainless hlau, kub resistant alloy steel workpiece semi-zoo sib tsoo, zoo sib tsoo.
Vim tias qhov tsis zoo ntawm daim ntawv khi thiab cov khoom sib tsoo, lub log sib tsoo hnav nrawm, nws tsis yooj yim rau kev tswj cov contour, thiab cov ntaub qhwv yooj yim rau kub kub. Lub corrosion kuj ntawm resin daim ntawv cog lus kuj tsis zoo, kev ua tau zoo tsis ruaj khov txaus, thiab nws yooj yim rau eroded los ntawm alkali, yog li cov ntsiab lus alkali nyob rau hauv lub coolant yuav tsum tau txo los ntawm 1.5% thaum ntub sib tsoo. Ib puag ncig ntub dhau yuav cuam tshuam rau lub zog ntawm cov pob zeb sib tsoo, yog li ua tib zoo saib xyuas cov khoom sib tsoo log, lub sijhawm cia tsis tuaj yeem ntev dhau (txog ib xyoos).
3. Rubber binder R ( qub qauv code X)
Roj Hmab binder yog cov cuab yeej abrasive ua los ntawm cov roj hmab hluavtaws lossis cov roj hmab ntuj uas yog cov khoom siv tseem ceeb, sib xyaw nrog qee feem ntawm sulfur, zinc oxide thiab lwm yam minerals thiab abrasives, vulcanized ntawm 150 degree ~ 200 degree.
Lub elasticity ntawm roj hmab daim ntawv cog lus yog ntau dua li ntawm resin daim ntawv cog lus, thiab lub zog kuj yog siab, uas yuav ua rau nyias nyias sib tsoo log. Nyob rau hauv qhov kev txiav txim ntawm qhov kub thiab txias hauv qhov chaw sib tsoo, daim ntawv cog lus ntawm qhov sib tsoo log maj mam dhau los ua nkig, thiab cov nplais abrasive yog ib qho yooj yim kom poob tawm, yog li cov tshiab ntse abrasive feem ntau khaws cia rau ntawm qhov chaw ua haujlwm. ntawm kev sib tsoo log, yog li txo qhov muaj peev xwm ntawm workpiece hlawv. Nyob rau tib lub sijhawm, lub log sib tsoo muaj zog polishing kev ua tau zoo thiab tuaj yeem tau txais qhov roughness tsawg. Txawm li cas los xij, kev sib tsoo lub log ntawm cov roj hmab daim ntawv cog lus muaj lub koom haum nruj, me me porosity, thiab tsis tuaj yeem zom tawm ntau ntawm cov nyiaj ua haujlwm, yog li nws feem ntau tsis haum rau roughing; Kev sib tsoo log ntawm cov roj hmab daim ntawv cog lus muaj cov roj tsis zoo, yog li cov roj tsis tuaj yeem siv los ua cov dej txias thaum sib tsoo.
4. Hlau Bond (M)
Hlau binders muab faib ua bronze binders thiab electroplating binders. Bronze binder muaj kev txiav zoo, siab zog, hnav tsis kam, kev pab lub neej ntev, zoo zoo tuav, thiab tuaj yeem tiv taus cov khoom loj. Tab sis nws tus kheej ntse ntse tsis zoo, yooj yim rau ntsaws thiab cua sov, nyuaj kho. Pob zeb diamond abrasives yog tsuas yog siv rau ntxhib, zoo sib tsoo thiab txiav cov ntaub ntawv hlau xws li iav, ceramics, pob zeb, pob zeb, semiconductor cov ntaub ntawv thiab cov ntaub ntawv superhard, thiab ib qho me me yog siv rau kev sib tsoo thiab cov duab sib tsoo ntawm cemented carbide thiab honing ntawm ntau yam. cov ntaub ntawv.
5. Magnesite binder (Mg)
Magnesia thiab hlau oxide yog siv los npaj magnesia thiab hlau oxide. Nws tuaj yeem ua kom tawv nqaij ntawm chav sov yam tsis muaj txheej txheem roasting, thiab nws yuav tsum tau tiv thaiv los ntawm cov xim dej thaum siv.
6. Complex binder
Txhawm rau txhim kho kev ua tau zoo ntawm cov ntaub ntawv saum toj no, ob peb lub binders tuaj yeem sib xyaw ua cov khoom sib xyaw, xws li roj hmab resin binders, ceramic hlau binders, thiab lwm yam.
