Preparation method of lightweight composite wallboard

Abstract

The invention provides a preparation method of a lightweight composite wallboard and belongs to the technical field of lightweight composite wallboard manufacturing. The method comprises the following steps: assembling a flat slab for flat-die roller forming and a combined type baffle into a set of forming mould, wherein a wallboard body with tenons and notch shapes at the two sides can be formed by the set of forming mould; when the forming mould moves along the preparation flow line, finishing a series of operations for forming the wallboard body, such as placing a bottom layer cement fiber face plate, paving and rolling a bottom layer light aggregate concrete layer, placing a reinforcement rib net, paving and rolling an upper layer light aggregate concrete layer, paving a surface layer mortar layer, paving glass gridding cloth, rolling a surface mortar layer, paving a plastic film, and preparing the lightweight composite wallboard after the wallboard body with the forming mould gets down a flow line delivering platform. The lightweight composite wallboard prepared by the preparation method has ideal overall mechanical strength, and is particularly suitable to be used for constructing insulation and sound-proof walls of housing industrialized buildings.

Description

technical field [0001] The invention belongs to the technical field of manufacturing lightweight composite wallboards, and in particular relates to a method for preparing lightweight composite wallboards by rolling with a flat die. Background technique [0002] Lightweight composite wallboard is a kind of sandwich wallboard, the middle layer is a light aggregate concrete sandwich layer, and the two sides are cement sheet layers. The cement sheet layer can be GRC board, Eterra board, calcium silicate board, gypsum board, etc., light weight Aggregate concrete sandwich layer is made of cement, mortar and lightweight aggregate mixed evenly, and then filled into lightweight concrete. Light aggregate includes lightweight ceramsite, polystyrene particles, pumice, hollow glass beads, wood bran, straw powder, etc. . The existing lightweight composite wallboard manufacturing technology mostly adopts the vertical mold forming process, which is formed on a large forming machine. The fo...

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Problems solved by technology

[0003] 1. In order to pour several panels at a time, the molding body is generally large, and the equipment is heavy and cannot be moved; molding operations (mold opening, mold cleaning, mold closing, inserting panels, pouring lightweight concrete, pressing, etc.) need to be separated in situ Batch completed, low work efficiency

[0004] 2. The mold opening and closing mechanism is complex and difficult to process and manufacture

[0005] 3. It is difficult to adjust the size change of the formed wallboard

[0006] 4. The production process of wallboard is discontinuous, the hardening process takes a longer period of forming equipment, and the single machine production capacity of wallboard is low

[0009] Although the flat die roll forming has changed the discontinuous production in the vertical mold casting into continuous production, and the production capacity has been greatly improved, but this process requires prefabricated panels for lightweight concrete (or light aggregate concrete). The connection between the surface layer of the laminate and the lightweight concrete slab (or with the lightweight aggregate concrete slab) is prone to hollowing and falling off, and it is not easy to process (or cannot be processed) on both sides while having a lightweight thermal insulation structure and Thicker composite wall panels with notch and tenon mating shapes

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