Title:
FIREPROOF HEAT INSULATING BRICK AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2020079182
Kind Code:
A
Abstract:
To provide a fireproof heat insulating brick capable of preventing deterioration of strength while obtaining heat insulating performance.SOLUTION: A fireproof heat insulating brick production method for producing a fireproof heat insulating brick includes following steps of: a rice husk ash adding step of adding 5-20 wt.% of rice husk ash as a porous sintered body mainly composed of SiOto the raw material of a fireproof insulation brick; a kneading and molding step of kneading the raw material to which the rice husk ash has been added to form it into the shape of a brick; and a firing step of firing the molded brick at a predetermined temperature, wherein when 10-20 wt.% of the rice husk ash is added in the rice husk ash adding step, the firing step is performed at a firing temperature raised by 50-100°C from the predetermined temperature.SELECTED DRAWING: Figure 1
Inventors:
ISHIZUKA MICHIO
NARUSE NAOYUKI
KOMURA TAKAYUKI
NARUSE NAOYUKI
KOMURA TAKAYUKI
Application Number:
JP2018213217A
Publication Date:
May 28, 2020
Filing Date:
November 13, 2018
Export Citation:
Assignee:
ROZAI KOGYO KK
International Classes:
C04B38/08; C04B35/101; C04B35/66; C04B38/00; F27D1/00
Attorney, Agent or Firm:
Atsumi Motoyuki