Title:
BELT CLEANER CHIP
Document Type and Number:
Japanese Patent JPH02192453
Kind Code:
A
Abstract:
PURPOSE: To improve the durability of the chip by sintering Al2O3, solid solution of Al2O3-Cr2O3 and Cr2O3, thereby increasing the hardness, lowering the reactivity with iron oxide and preventing the transformation at ≤300°C.
CONSTITUTION: The objective belt cleaner chip is formed of a sintered material composed of 1-3 components selected from Al2O3, solid solution of Al2O3-Cr2O3 and Cr2O3. The sintered material is hardly reactive with iron oxide, free from transformation in a temperature range up to 300°C and has a Vickers hardness of ≥1,700kg/mm2. The chip has remarkable durability to enable the cost reduction.
Inventors:
KATAOKA KOUICHIROU
HAYASHI KUNIHIDE
HASEGAWA JUNZO
OUCHI TATSUYA
TAIRA HATSUO
HAYASHI KUNIHIDE
HASEGAWA JUNZO
OUCHI TATSUYA
TAIRA HATSUO
Application Number:
JP1113289A
Publication Date:
July 30, 1990
Filing Date:
January 20, 1989
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B65G45/00; B65G45/12; C04B35/10; C04B35/12; (IPC1-7): B65G45/12; C04B35/10; C04B35/12
Attorney, Agent or Firm:
Teruo Taniyama (4 outside)
Previous Patent: PRODUCTION OF BOARD FOR SUPPORTING ELECTRONIC PART
Next Patent: INSULATING CERAMIC COMPOSITION
Next Patent: INSULATING CERAMIC COMPOSITION