Tissue abrasive igabanijwemo ibice bitatu: byoroshye, biciriritse kandi birekuye.Buri cyiciro kirashobora kugabanywa mumibare, nibindi, bitandukanijwe numubare wimiryango.Ninini yumuryango umubare waigikoresho, ntoya ingano yijanisha rya abrasive muriigikoresho, kandi mugari icyuho kiri hagati yingingo zifatika, bivuze ko umuryango urekuye.Ibinyuranye, umubare muto wumuryango, niko umuryango ukomera.Gukuramo ibintu hamwe nuduce tworoshye ntabwo byoroshye kunyuramo iyo bikoreshejwe, kandi bitanga ubushyuhe buke mugihe cyo gusya, bishobora kugabanya ihindagurika ryumuriro no gutwika akazi.Ibinyampeke byo gukuramo ibikoresho byabigenewe hamwe nuburyo bukomeye ntabwo byoroshye kugwa, bifite akamaro ko kugumana imiterere ya geometrike yigikoresho.Imiterere yigikoresho cyo gukuramo igenzurwa gusa ukurikije ibikoresho byabigenewe mugihe cyo gukora, kandi mubisanzwe ntabwo bipimwa.Superabrasive bonded abrasives ikozwe cyane cyane muri diyama, nitride ya cubic boron, nibindi kandi igahuzwa numukozi uhuza.Bitewe nigiciro kinini cya diyama na cubic boron nitride hamwe no kwihanganira kwambara neza, imiti ihujwe ikozwe nabo itandukanye nibisanzwe byangiza.Usibye superhard abrasive layer, hariho inzibacyuho na substrate.Igice cya superabrasive nigice kigira uruhare rwo guca, kandi kigizwe na superabrasives hamwe ningingo zihuza.Matrix igira uruhare runini mu gusya kandi igizwe nibikoresho nkicyuma, bakelite cyangwa ceramika.
Hariho uburyo bubiri bwo gukora ibyuma bivanaho ibyuma, ifu ya metallurgie na electroplating, bikoreshwa cyane cyane muri superhard abrasive bonded abrasives.Ifu ya metallurgie yuburyo ikoresha umuringa nka binder.Nyuma yo kuvanga, bikozwe no gukanda cyangwa gukanda ubushyuhe bwicyumba, hanyuma bigacumura.Uburyo bwa electroplating bukoresha nikel cyangwa nikel-cobalt alloy nkicyuma cya electroplating, kandi abrasive ihurizwa kuri substrate ukurikije inzira ya electroplating kugirango ikore igikoresho cyangiza.Ubwoko bwihariye bwa abrasives burimo corundum abrasives na fibre abrasives.Igikoresho cyacumuye corundum abrasive gikozwe mukuvanga, gukora, no gucumura nka 1800 ℃ hamwe nifu ya alumina nziza hamwe na oxyde ya chromium.Ubu bwokoigikoreshoifite imiterere yoroheje nimbaraga nyinshi, kandi ikoreshwa cyane mugutunganya amasaha, ibikoresho nibindi bice.Ibikoresho byo gukuramo fibre bikozwe muri fibre fibre (nka nylon filaments) irimo cyangwa ikurikiza abrasives.Bafite elastique nziza kandi ikoreshwa cyane mugutunganya ibikoresho byibyuma nibicuruzwa byabo.
Inzibacyuho ikoreshwa muguhuza matrix na superabrasive layer, kandi igizwe numukozi uhuza, ushobora rimwe na rimwe gusibwa.Benders ikoreshwa cyane ni resin, ibyuma, ibyuma bisize hamwe nubutaka.
Igikorwa cyo gukora imiti ihujwe ikubiyemo: gukwirakwiza, kuvanga, gukora, gutunganya ubushyuhe, gutunganya no kugenzura.Hamwe na binders zitandukanye, inzira yo gukora nayo iratandukanye.Inkunga ya ceramicigikoresho cyane cyane uburyo bwo gukanda.Nyuma yo gupima abrasive na binder ukurikije igipimo cy'uburemere bwa formula, shyira muri mixer kugirango uvange neza, ubishyire mubyuma, hanyuma ushireho igikoresho cyo gukuramo ubusa kuri kanda.Ikibanza cyumye hanyuma kigashyirwa mu itanura kugirango kotsa, kandi ubushyuhe bwo kurasa muri rusange ni 1300 ° C.Iyo akayunguruzo gashushe gahoro gahoro gakoreshwa, ubushyuhe bwo gucana buri munsi ya 1000 ° C.Noneho biratunganywa neza ukurikije ingano nubunini byagenwe, amaherezo ibicuruzwa birasuzumwa.Ibisigarira bifatanyirijwe hamwe mubisanzwe bikorerwa kumashini yubushyuhe bwicyumba, kandi hariho nuburyo bukanda-bushyushye bushyuha kandi bugashyirwaho ingufu mugihe cy'ubushyuhe.Nyuma yo kubumba, irakomera mu itanura rikomeye.Iyo resin ya fenolike ikoreshwa nka binder, ubushyuhe bwo gukiza ni 180 ~ 200 ℃.Ibikoresho bya reberi bifatanyirijwe hamwe bivangwa cyane cyane, bizunguruka mu mpapuro zoroshye, hanyuma bigakubitwa ibyuma.Nyuma yo kubumba, ihindagurika mu kigega cy’ibirunga ku bushyuhe bwa 165 ~ 180 ℃.
Igihe cyo kohereza: Nzeri-05-2022
