FIREPROOFING PANEL

• Main Authors: YAZAKI MITSUHIKO, AKINE KENJI, KUWAE SHIGERU, HOKARI MINORU
• Format: Patent
• Language: English
• Published: 06.05.1994
• Edition: 5
• Subjects: BUILDING; CEILINGS; FIXED CONSTRUCTIONS; FLOORS; GENERAL BUILDING CONSTRUCTIONS; INSULATION OR OTHER PROTECTION OF BUILDINGS; ROOFS; WALLS, e.g. PARTITIONS

PURPOSE:To provide a lightweight fireproofing panel excellent in fire resistance. CONSTITUTION:A fireproofing panel is formed by bonding and integrating metallic plates 7, 7 to both sides of a fibrous mat having a coefficient of linear contraction of less than 5% when heated at 1000 deg.C for eight hours, formed by compression molding of rockwool fibers. The fibrous mat is composed mainly of natural rock containing 35-wt.% or more SiO2 and 20-wt.% or less CaO, which is compression molded at a density of 80 to 250kg/m with a binding material blended therein in the range 0.5 to 3wt.%. Also, the rockwool fibers are compressed in the direction parallel to a stack face while being compressed from the vertical direction on a belt conveyor, and are usable as a long strip 6 cut out therefrom with its longitudinal direction extending perpendicular or parallel to the direction of movement of the belt conveyor. In this case, a surface C abutting the surface of the initial fibrous mat is laid at right angles to the surface of each metallic plate 7 and the long strip 6 is sandwiched between the metallic plates 7, 7. Therefore, the fibrous mat serves as a heat insulation layer and even when the panel is exposed to flame radiation in a fire, etc., the temperature rise of the back of the panel is restrained so that early action to extinguish the fire or to evacuate, etc., is safely carried out.