Dabarar niƙawani nau'i ne na aikin yankan, nau'in kayan aikin yankewa ne. A cikin dabaran niƙa, abrasive yana da aiki iri ɗaya da serations a cikin tsintsiya. Amma ba kamar wuka mai gani ba, wacce ke da serrations a gefuna kawai, ana rarraba abrasive na dabaran niƙa a cikin motar. Dubban ɓangarorin ɓarna masu tauri ana matsar da su a ko'ina cikin aikin don cire ƙananan kayan.
Gabaɗaya masu samar da abrasive za su samar da samfura iri-iri don aikace-aikacen niƙa daban-daban a cikin sarrafa ƙarfe. Zaɓin samfurin da ba daidai ba zai iya kashe lokaci da kuɗi mai yawa. Wannan takarda tana ba da wasu ƙa'idodi na asali don zaɓar mafi kyawun dabaran niƙa.
Abrasive: irin yashi
Dabaran niƙa ko wasu dutsen niƙa da aka haɗa suna da manyan abubuwa guda biyu:
Gwargwadon da ke yin yankan a zahiri, da haɗin gwiwar da ke riƙe da grits tare da goyan bayan grits yayin yankan. An ƙaddara tsarin dabaran niƙa ta hanyar rabo na abrasive, ɗaure da fanko a tsakanin su.
Ana zaɓar takamaiman abrasives da aka yi amfani da su a cikin dabaran niƙa bisa ga hanyar da suke hulɗa da kayan aikin. Kyakkyawan abrasive shine wanda ke da ikon kasancewa mai kaifi kuma ba a sauƙaƙe ba. Lokacin da passivation ya fara, abrasive zai karya don samar da sababbin maki. Kowane nau'in abrasive na musamman ne, tare da taurin daban-daban, ƙarfi, taurin karaya da juriya mai tasiri.
Alumina shine mafi yawan amfani da abrasive a cikin ƙafafun niƙa.
An fi amfani da shi don niƙa karfen carbon, gami da ƙarfe, ƙarfe mai sauri, baƙin ƙarfe mai yuwuwa, ƙarfe, ƙarfe, tagulla da makamantansu. Akwai nau'ikan abrasives iri-iri iri-iri, kowannensu an ƙera shi musamman kuma an haɗa shi don wani nau'in aikin niƙa. Kowane nau'in alumina yana da sunansa: yawanci haɗuwa da haruffa da lambobi. Waɗannan sunaye zasu bambanta daga masana'anta zuwa masana'anta.
Zirconia aluminawani nau'i ne na abrasives, wanda aka yi ta hanyar hada alumina da zirconia a cikin nau'i daban-daban. Wannan haɗin yana samar da ƙaƙƙarfan ƙaƙƙarfan ƙaƙƙarfan ƙura, wanda ke yin aiki da kyau a cikin ƙayyadaddun aikace-aikacen niƙa, kamar a cikin ayyukan yankewa. Hakanan ya dace da kowane nau'in ƙarfe da ƙarfe na gami.
Kamar yadda yake tare da alumina, ana samun nau'ikan iri daban-daban na zirconia alumina.
Silicon carbide wani abu ne da ake amfani da shi don niƙa baƙin ƙarfe mai launin toka, ƙarfe mai sanyi, tagulla, tagulla mai laushi da aluminum, da kuma dutse, roba da sauran ƙananan ƙarfe waɗanda ba na ƙarfe ba.
Ceramic aluminashine sabon ci gaba mai mahimmanci a cikin tsari mai lalata. Yana da babban tsaftataccen hatsi da aka samar ta hanyar gel sintering tsari. Wannan abrasive na iya karya ma'aunin micron a saurin sarrafawa. Bi da bi, dubban sababbin maki suna tasowa. Ceramic alumina abrasives suna da wuyar gaske kuma ana amfani da su a cikin buƙatar daidaitaccen niƙa na ƙarfe. Sau da yawa ana haɗe su da sauran abrasives a cikin nau'i daban-daban don inganta aikin su a cikin kayan aiki da aikace-aikace daban-daban.
Lokacin aikawa: Nuwamba-17-2022
