JPS55121993A - Producing non-porous alumina-based single crystal abrasive grain - Google Patents

Producing non-porous alumina-based single crystal abrasive grain

Info

Publication number
JPS55121993A
JPS55121993A JP2995079A JP2995079A JPS55121993A JP S55121993 A JPS55121993 A JP S55121993A JP 2995079 A JP2995079 A JP 2995079A JP 2995079 A JP2995079 A JP 2995079A JP S55121993 A JPS55121993 A JP S55121993A
Authority
JP
Japan
Prior art keywords
alumina
heated
titanium oxide
carbonaceous material
sodium compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2995079A
Other languages
Japanese (ja)
Inventor
Shuichi Sekikawa
Morinosuke Kano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Carlit Co Ltd
Original Assignee
Japan Carlit Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Japan Carlit Co Ltd filed Critical Japan Carlit Co Ltd
Priority to JP2995079A priority Critical patent/JPS55121993A/en
Publication of JPS55121993A publication Critical patent/JPS55121993A/en
Pending legal-status Critical Current

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  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PURPOSE: To efficiently provide high-quality abrasive grain with a little power consumption, by a method wherein alumina-based powder is mixed with sodium compound and titanium oxide powder, the mixture is grained, calcined with carbonaceous material, and is heated in oxidizing atmosphere.
CONSTITUTION: Alumina-based powder is mixed with flux consisting of sodium compound and titanium oxide powder, usig a mixer such as pot mill. The mixture is dried and granuled. The granules are heated with carbonaceous material at 1500W1650°C under half-sealed condition until the carbonaceous material is deposited on the surface of the granules. The calcination provides crystalline grains, which is crushed and heated at 800W1000°C in air atmosphere to oxidize and remove the carbon particles deposited on the surface. The obtained alumina-based crystal grain has deposited flux of the sodium compound and titanium oxide on its surface, which is removed by either mechanical or cheminal means.
COPYRIGHT: (C)1980,JPO&Japio
JP2995079A 1979-03-16 1979-03-16 Producing non-porous alumina-based single crystal abrasive grain Pending JPS55121993A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2995079A JPS55121993A (en) 1979-03-16 1979-03-16 Producing non-porous alumina-based single crystal abrasive grain

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2995079A JPS55121993A (en) 1979-03-16 1979-03-16 Producing non-porous alumina-based single crystal abrasive grain

Publications (1)

Publication Number Publication Date
JPS55121993A true JPS55121993A (en) 1980-09-19

Family

ID=12290259

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2995079A Pending JPS55121993A (en) 1979-03-16 1979-03-16 Producing non-porous alumina-based single crystal abrasive grain

Country Status (1)

Country Link
JP (1) JPS55121993A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008156184A (en) * 2006-12-26 2008-07-10 Yufeng Zhuang Method for growing sapphire crystal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008156184A (en) * 2006-12-26 2008-07-10 Yufeng Zhuang Method for growing sapphire crystal

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