Unikani ubale pakati pa white corundum powder ndi alumina

Ambiri opanga mankhwala ovala zovala amafunikira ufa woyera wa corundum, koma ndi ntchito yotani ya ufa wa corundum woyera, momwe amapangidwira, ndi mgwirizano pakati pa ufa woyera wa corundum ndi alumina? Kenako, tipenda mozama ubale wapakati pa awiriwa.

White corundum ndi mitundu yosiyanasiyana ya abrasive abrasive corundum muzinthu zowawa. Ubale pakati pa ufa woyera wa corundum ndi alumina ndikuti umapangidwa ndi kutentha kwambiri kusungunuka ndi alumina ufa monga zopangira zazikulu. Zomwe zili mu Al2O3 nthawi zambiri zimakhala 97% -99%, zomwe ndi zoyera. White Corundum imakhala ndi kuuma kwakukulu, kutsekemera sikophweka kumveka, ndipo kulimba kwake kumakhala kotsika pang’ono kusiyana ndi korundum ya bulauni. Njere za abrasive zimathyoledwa mosavuta pansi pa kukanikiza kupanga nsonga zatsopano zodula. Chifukwa chakuti abrasive imakhala yolimba kwambiri kuposa corundum ya bulauni, imakhala yosavuta kudula muzitsulo zogwirira ntchito, ndipo njere za abrasive zimakhala ndi ntchito yabwino yodziwotcha, kotero kuti white corundum abrasive imakhala ndi luso lodula bwino, lomwe lingathe kuchepetsa kupunduka kwa workpiece ndi kutentha.

Choncho, ma abrasives oyera a corundum ndi oyenera kupukuta, kuwola, kupukuta ulusi, ndi zina zotero, komanso pogaya zingwe zomwe zimakhala zosavuta kupunduka ndikuwotchedwa, monga kupukuta mwatsatanetsatane zitsulo zolimba, zitsulo zothamanga kwambiri, zitsulo za carbon, ndi zoonda. -zigawo zokhala ndi mipanda. White Corundum ili ndi mawonekedwe ang’onoang’ono, oyenera kugaya galasi. Nthawi yomweyo, corundum yoyera imakhalanso ndi mawonekedwe a asidi ndi kukana kwa dzimbiri zamchere, kukana kutentha kwambiri, komanso kukhazikika kwamafuta abwino. Amagwiritsidwa ntchito kwambiri m’magawo apamwamba kwambiri monga kuponyera mwatsatanetsatane, zokanira zitsulo, zokanira mankhwala, zoumba zapadera, zadothi zomwe zimagwiritsidwa ntchito tsiku ndi tsiku, mafakitale ankhondo, ndi zamagetsi.

Zomwe zili mu sodium oxide mu corundum yoyera zili pakati pa 0.2 ndi 0.6%. Ubale pakati pa white corundum powder ndi alumina. Sodium oxide ndi chonyansa choyipa ku white corundum. Amapanga β-Al2O3 mu chitsulo chosungunuka ndi alumina, ndipo kuchuluka kwa mapangidwe kumawonjezeka ndi kuwonjezeka kwa sodium oxide okhutira.

Ndikukula kwachangu kwa msika wama abrasives apamwamba kwambiri, zida zamagetsi zamagetsi ndi zida zapamwamba zokanira, kuchepetsa zomwe zili mu sodium mu white corundum kwakhala njira yofunika yofufuzira pakuwongolera mtundu wa white corundum. Pali njira zambiri zochotsera sodium mu corundum yoyera, monga kuchotsa sodium kuzinthu zopangira, kugula mwachindunji zipangizo zopangira alumina ya mafakitale otsika kwambiri, kapena kuchotsa sodium ku zipangizo zamtengo wapatali za aluminiyamu. Mabizinesi opanga amagwiritsa ntchito magulu ambiri.