Core forming method of non-combustible heat insulation flat plate and manufacturing method of non-combustible heat insulation flat plate

Abstract

According to the invention, a plurality of core blocks, which are characterized in that the extension direction of fibers is consistent with the thickness direction, are arranged to form a core, so that the core is easy to process and the operation of fixing metal plates on two planes is easy. The core forming method comprises the steps of arranging a plurality of core blocks (10) cut from asbestos blank (1) in such a manner that the extension direction of fibers (1a) is consistent with the thickness direction, coating the upper surfaces of the core blocks with adhesive (25) to form a first core block layer (21), laminating core blocks (10), which are characterized in that the extension direction of fibers (1a) is consistent with the thickness direction, on the upper surface the first core block layer (21) in a toothed structure or a #-shaped structure to form a second core block layer (22), and extruding the laminated core block layers (21, 22) in the thickness direction to obtain the core (20).

Description

technical field [0001] The invention relates to a method for forming a core material of a non-combustible and heat-insulating flat plate and a method for manufacturing the non-combustible and heat-insulating flat plate. Background technique [0002] The above-mentioned non-combustible heat-insulating panels are installed to prevent the spread of fire in the event of a fire, for example, as a partition to divide the interior of a large building such as a warehouse or a factory into multiple spaces with a certain area or less, or as a panel on the outer wall of a building. to set. For this kind of non-combustible heat-insulating flat plate, the Building Standard Law stipulates that it must pass a certain specification of fire-proof material performance test. As its structure, a sandwich structure is generally used, that is, asbestos and other heat-insulating materials are sandwiched between two steel plates as the core material (refer to Japan Invention patent application JP-...

AI Technical Summary

Problems solved by technology

However, when manufacturing such a non-combustible heat-insulating flat panel, multiple core blocks tend to be separated and scattered, so it is difficult to handle, it is difficult to fix the steel plate, and the cost of equipment required for the automation of the production line will increase.

In addition, it is difficult to obtain a variety of non-combustible insulating panels of various lengths

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