Fire-proof plate and preparation method thereof

Abstract

The invention discloses a fire-proof plate and a preparation method thereof. The fire-proof plate comprises closed cell perlite, volcanic ash, cement, asbestos fibers, talcum powder, sodium bicarbonate, calcium bicarbonate, barium sulfate, aluminum oxide C and water. The preparation method of the fire-proof plate includes the steps: uniformly mixing the closed cell perlite, the volcanic ash, the cement, the asbestos fibers, the barium sulfate and the aluminum oxide C to obtain a solid mixture A; adding the talcum powder into the water, adding the calcium bicarbonate and the sodium bicarbonateafter homogenization, and uniformly mixing the talcum powder, the calcium bicarbonate and the sodium bicarbonate to obtain liquid B; adding the liquid B into the solid mixture A and uniformly stirringthe liquid B and the solid mixture A to obtain mixed slurry; pouring the mixed slurry into a mould and performing standing, foaming and curing to obtain the fire-proof plate. The fire-proof plate isgood in heat insulation effect and suitable for manufacturing a fire-proof and heat insulation layer of special equipment such as a safety box and an ATM (automatic teller machine) and can effectivelyinsulate high temperature.

Description

technical field [0001] The invention relates to the field of preparation of fireproof and heat insulating materials, in particular to a fireproof board and a preparation method thereof. Background technique [0002] With the development of society and the increase of application requirements, people have higher and higher requirements for fireproof materials, and their uses are becoming more and more extensive. In special equipment such as traditional safes and automatic teller machines (ATMs), the fire performance of its materials has attracted more and more attention. The current common safes and automatic teller machines (ATMs) have been continuously innovated, and their anti-theft performance has been basically satisfied, but their fire protection performance still needs to be improved. In some special cases, such as fires, the ambient temperature may reach several hundred or even higher. Thousands of degrees Celsius, the general safe can withstand such a high temperatu...

AI Technical Summary

Problems solved by technology

The current common safes and automatic teller machines (ATMs) have been continuously innovated, and their anti-theft performance has been basically satisfied, but their fire protection performance still needs to be improved. In some special cases, such as fires, the ambient temperature may reach several hundred or even higher. Thousands of degrees Celsius, the general safe can withstand such a high temperature immediately without deformation, but the temperature inside the cabinet also rises sharply, and the i