Machine-made inorganic silicon-magnesium external wall thermal insulation composite board through one-step molding and production technology thereof

Abstract

The invention relates to a machine-made inorganic silicon-magnesium external wall thermal insulation composite board through one-step molding and a production technology thereof. The composite board contains a thermal insulation composite board panel layer prepared from magnesium chloride, magnesium oxide, silicon dioxide, glass fiber cloth, mat sheets, magnesite filler and modifier, an intermediate thermal insulation layer and a thermal insulation composite board bottom board layer prepared from magnesium chloride, magnesium oxide, silicon dioxide, glass fiber cloth, magnesite filler and modifier. One-step roll forming is performed to the thermal insulation composite board panel layer, the intermediate thermal insulation layer and the thermal insulation composite board bottom board layer, thus the traditional manual field operation is changed, the mechanized factory production using inorganic silicon-magnesium cement material is realized, the labor cost and the time are reduced and the engineering quality and the operability of quality check are greatly increased; the weight of the composite board is 1 / 2 to 1 / 3 of that of the external wall thermal insulation material prepared by the traditional technology; the impact strength is more than twice of that of the common composite board; the composite board has freeze-thaw resistance and can not change after 40 times of freeze-thaws, which is better than the portland cement board; and the composite board has good toughness and high wind resistance, and is the best product of the current external wall external thermal insulation composite board.

Description

technical field [0001] The invention relates to an external wall thermal insulation composite board and a production process, in particular to an external wall thermal insulation composite board made of inorganic silicon-magnesium material by mechanized one-shot molding and a production process. Background technique [0002] Over the past 30 years of reform and opening up, my country's economic construction has advanced by leaps and bounds, the deterioration of ecological balance has intensified, and resources have decreased significantly. In order to promote the whole society to save energy, improve energy utilization rate, protect and improve the environment, and promote the comprehensive, coordinated and sustainable development of economic construction. It is a major issue to develop new products for building insulation, energy saving, environmental protection, and protection of natural ecological balance. [0003] The history of implementing external wall insulation in ...

AI Technical Summary

Problems solved by technology

[0003] The history of implementing external wall insulation in my country is relatively short, so there are few types of products and single methods

At present, large-scale implementation is mainly based on plastering mortar and sticking insulation board. Although this process has made great progress, there are still a series of quality problems such as poor surface flatness, cracks, deformation, hollowing, and falling off.

In terms of quality control, because it is an on-site construction operation and there are so many construction workers, it is difficult to carry out effective quality assurance management

[0004] With the popularization and development of energy-saving and thermal insulation, exterior wall thermal insulation board products with calcium silicate board bonded thermal insulation boards have also appeared on the market. Organic special glue bonding, this kind of bonding exists: board bonding rate, bonding fastness, bonding glue environmental protection and other aspects of quality problems

In addition, the calcium silicate board is a brittle material with poor impact strength, especially in areas with strong winds, cracks and shedding may occur due to the damage of negative wind pressure.

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