Production method of cement composite board and production method of multi-layer composite cement board

Abstract

The invention discloses a production method of a cement composite board. The production method comprises the steps of batching, high-speed mixing, kneading and banbury mixing, vacuum dehumidification, extrusion and solidification, thickness determination treatment and maintenance treatment, and the finished cement composite board is obtained after the maintenance treatment. The method can realize continuous production of the cement composite board, the process is simple, the production efficiency is high, the production cost is low, and the produced cement composite board is high in structural strength, stable in size and stable in physical performance.

Description

technical field [0001] The invention relates to the technical field of production methods of cement composite boards, in particular to a production method of cement composite boards and a production method of multilayer composite cement boards. Background technique [0002] At present, in the production process of cement composite boards, the components used to produce cement composite boards are first mixed and stirred to obtain slurry-like raw materials, and then poured into molds for molding. The forming process is generally a layer of slurry-like raw materials and a layer Glass fiber cloth, or at least add glass fiber cloth to the bottom layer and the surface layer, and finally solidify to obtain a cement composite board. The boards are not produced continuously. It usually takes 15 days for each cement composite board to reach the best curing strength, and the curing time of the cement composite board is longer, so many molding molds are required to produce cement compo...

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Problems solved by technology

[0002] At present, in the production process of cement composite boards, the components used to produce cement composite boards are first mixed and stirred to obtain slurry-like raw materials, and then poured into molds for molding. The forming process is generally a layer of slurry-like raw materials and a layer Glass fiber cloth, or at least add glass fiber cloth to the bottom layer and the surface layer, and finally solidify to obtain a cement composite board. The boards are not produced continuously. It usually takes 15 days for each cement composite board to reach the best curing strength, and the curing time of the cement composite board is longer, so many molding molds are required to produce cement composite boards of various sizes. This leads to extremely low production efficiency of cement composite boards and high production costs. In addition, the thickness of the cement composite boards obtained by molding has a large thickness error, and the thickness size is unstable. The structural strength and bending resistance of cement composite boards produced in different batches The difference in performance and other properties is also large. The cement composite board obtained after molding and curing needs to undergo a long-term maintenance treatment to remove the internal stress of the cement composite board, and then various mechanical processing is required to realize the cement board. The thickness is controlled within the allowable thickness deviation range, there are many follow-up process steps, and the loss in the processing process is also very large, and a large amount of dust pollution is generated in the process of adding, so it is necessary to improve

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