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Preparation method of cement plate material with high surface compactness

A cement and board technology, which is applied in the field of preparation of high-density cement boards on the surface, can solve the problems of aging service life, insufficient surface hardness, water seepage of cement boards, etc., and achieve good scratch resistance and long service life.

Inactive Publication Date: 2019-02-12
湖南兴龙环境艺术工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a method for preparing a cement board with high surface density, which can solve the technical problems of water seepage, insufficient surface hardness, aging phenomenon and short service life of the existing cement board

Method used

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  • Preparation method of cement plate material with high surface compactness
  • Preparation method of cement plate material with high surface compactness

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preparation example Construction

[0029] The present invention provides a kind of preparation method of surface high-density cement plate, and this preparation method comprises the following steps:

[0030] Step 1, preparation of glass powder filler:

[0031] Weigh each raw material according to the formula ratio, and the formula of glass powder filler is as follows in terms of mass percentage: 30-35% industrial grade boric acid, 10-15% spodumene powder, 10% feldspar powder, 20-30% Talc powder, 5-10% vanadium sulfide, 5% tin oxide and 10-15% calcium fluoride;

[0032] Put the weighed raw materials into a V-shaped mixer and mix them for 1-2 hours at 30 rpm;

[0033] Put the mixed raw materials into the crucible furnace, raise the temperature from room temperature to 1200°C at a rate of 3-6°C / min, keep it warm for 0.5-1 hour, and make glass liquid;

[0034] Pour the molten glass into water and cool to form broken glass;

[0035] Put the broken glass pieces into a roller crusher for crushing, the distance betw...

Embodiment 1

[0050] The present invention provides a kind of preparation method of surface high-density cement plate, and this preparation method comprises the following steps:

[0051] Step 1, preparation of glass powder filler:

[0052] Take each raw material by formula ratio, the formula of glass powder filler, by mass percent, is as follows: 35% technical grade boric acid, 10% spodumene powder, 10% feldspar powder, 20% talcum powder, 5% Vanadium sulfide, 5% tin oxide and 15% calcium fluoride;

[0053] Put the weighed raw materials into a V-shaped mixer and mix them for 2 hours at 30 rpm;

[0054] Put the mixed raw materials into a crucible furnace, raise the temperature from room temperature to 1200°C at a rate of 4°C / min, and keep it warm for 1 hour to make molten glass;

[0055] Pour the molten glass into water and cool to form broken glass;

[0056] Put the broken glass pieces into a roller crusher for crushing, the distance between the two rollers is 0.2 mm, and dry the crushed ...

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Abstract

The invention discloses a preparation method of a cement plate material with high surface compactness. The preparation method comprises the following steps of 1, preparing glass powder filling materials; 2, preparing cement plate shaping slurry; 3, shaping the cement plate material; 4, sintering the cement plate material. The method has the following beneficial effects that the specially designedglass filling materials are added into a cement plate material shaping material; in the subsequent sintering process of the cement plate material, the glass filling materials become liquid state to beenriched to the surface of the cement plate material; the spreading is performed on the surface of the cement plate material under the surface tension driving to form the smooth and compact inorganicglass film. The cement plate prepared by the method has the advantages that a full-compactness smooth glass film exists on the surface; the problem of water seepage of the cement plate material can be effectively solved; the surface hardness of the cement plate material can reach the grade 7 Moh's hardness; good anti-scratching capability is realized; the surface compact film layer on the surfaceof the cement plate is an inorganic material; the illumination aging phenomenon does not exist; the service life is long.

Description

【Technical field】 [0001] The invention relates to the technical field of building material preparation, in particular to a method for preparing a surface high-density cement board. 【Background technique】 [0002] Because of its simple preparation process and low cost, cement board can be easily made into boards of various colors and shapes. It is currently the commonly used panel material for integrated wall insulation boards. At present, the common preparation process of cement board is to add a certain amount of aggregate and functional filler to the cement first, add water and stir to make cement slurry, pour it into the board mold, and gel and solidify under certain conditions to obtain a certain strength. cement slab. The process of making cement boards with this process is simple and low in cost, but the surface of the prepared cement boards has a certain porosity, and it is easy to absorb moisture after being exposed to water. If it is used as an exterior wall panel...

Claims

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Application Information

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IPC IPC(8): C03C6/06C04B28/04C04B41/00
CPCC03C1/00C04B28/04C04B41/0072C04B14/22C04B14/38C04B22/16
Inventor 伍治东
Owner 湖南兴龙环境艺术工程股份有限公司
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