Methods of manufacturing gypsum boards

Abstract

The term "prevention" refers to a technical solution that can effectively prevent, by simple, chemical-free methods, the "appearance of wrinkles" on the liner paper used to create gypsum-impregnated products obtained through the gypsum board manufacturing process, and can be applied to continuous gypsum-impregnated production processes in practice. and it is possible to produce high-quality gypsum board with high productivity. This gypsum board production method includes the step of transporting multi-layered base sheets in which the gypsum material layer is pressed between the top and bottom layers of the gypsum board backing paper while forming these thin, multi-layered sheets, in which: This step involves a series of processes such as placing the bottom layer of paper onto the operating conveyor-and-forming table, continuously pouring plaster mortar of the raw material for the plaster layer onto the bottom layer of paper being transported, rolling the top layer of paper onto the plaster mortar of the forming machine to mold this thin multi-layer centerpiece, and transporting this thin multi-layer to the rough cutting machine by conveyor-and-forming table; and spray or apply water onto the top layer of paper at the following locations: between the position of the forming machine and the position of the roughing machine; and at a distance from the forming machine equal to 1 / 4 of the distance between them, or at a location on the forming machine side opposite to the location at a distance from the forming machine equal to 1 / 4 of the distance between the position of the forming machine and the position of the roughing machine.