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Gypsum panel with cavities and dry-method production method thereof

A technology of hollow slats and production methods, which is applied in the field of building walls, can solve the problems of high water content, achieve low free water content, reduce production costs and cycles, and achieve low water-to-paste ratio

Inactive Publication Date: 2016-07-06
ANHUI SENKE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of high water content and the need for drying steps in the prior art, the present invention proposes a gypsum hollow lath with a water-to-paste ratio as low as 0.3-0.33, and the product quality is much higher than that of the gypsum lath JC / T829- 2010 "Gypsum Hollow Slats" Standard Requirements

Method used

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  • Gypsum panel with cavities and dry-method production method thereof

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Effect test

Embodiment 1

[0020] A gypsum hollow slab made of the following raw materials in parts by weight:

[0021] A total of 80 parts of desulfurized gypsum and titanium gypsum, 2 parts of XK dry process additive, 20 parts of expanded perlite and water, wherein the mass ratio of water: the total weight of desulfurized gypsum and titanium gypsum is 0.3:1.

[0022] A dry method for producing gypsum hollow slats, comprising the following steps:

[0023] 1) Weigh desulfurization gypsum and titanium gypsum, XK dry process additive and water, mix and stir, then add expanded perlite, and mix and stir evenly;

[0024] 2) The mixture obtained in step 1) is injected into the intermittent hydraulic extrusion molding gypsum hollow slab molding equipment, and hydraulic extrusion molding is completed.

Embodiment 2

[0026] A total of 90 parts of fluorogypsum and phosphogypsum, 1 part of XK dry process additive, 15 parts of vitrified microbeads and water, wherein the mass ratio of water: the total weight of fluorogypsum and phosphogypsum is 0.33:1.

[0027] A dry method for producing gypsum hollow slats, comprising the following steps:

[0028] 1) Weigh fluorogypsum, phosphogypsum, XK dry additive and water, mix and stir, then add vitrified microbeads, mix and stir evenly;

[0029] 2) The mixture obtained in step 1) is injected into the intermittent hydraulic extrusion molding gypsum hollow slab molding equipment, and hydraulic extrusion molding is completed.

Embodiment 3

[0031] A gypsum hollow slab made of the following raw materials in parts by weight:

[0032] A total of 85 parts of titanium gypsum and fluorine gypsum, 2 parts of XK dry process additive, a total of 18 parts of vitrified microbeads and saw foam ash, and water, wherein the mass ratio of water: total weight of titanium gypsum and fluorine gypsum is 0.32:1.

[0033] A dry method for producing gypsum hollow slats, comprising the following steps:

[0034] 1) Weigh titanium gypsum, fluorogypsum, XK dry process additive and water, mix and stir, then add vitrified beads and saw foam ash, mix and stir evenly;

[0035] 2) The mixture obtained in step 1) is injected into the intermittent hydraulic extrusion molding gypsum hollow slab molding equipment, and hydraulic extrusion molding is completed.

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Abstract

The invention proposes a gypsum hollow slab and its dry production method, comprising 80-90 parts of gypsum powder, 1-2 parts of XK dry process additive, 15-20 parts of light materials and water, wherein water and gypsum powder The weight ratio of the body is 0.3‑0.33:1. The production method includes the following steps: 1) Weigh the gypsum powder, XK dry process additive and water, mix and stir, then add light materials, and mix and stir evenly by adjusting the force; 2) Inject the mixture obtained in step 1) into the intermittent hydraulic pressure Extrusion molding Gypsum hollow slab molding equipment, hydraulic extrusion molding, can be. The gypsum hollow slab produced by this method has a water-to-plast ratio as low as 0.3-0.33, and the product quality is far higher than the standard requirement of JC / T829-2010 "Gypsum Hollow Slab" for gypsum slabs.

Description

technical field [0001] The invention belongs to the technical field of building walls, and in particular relates to a gypsum hollow lath and a dry production method thereof. Background technique [0002] Gypsum hollow slats are mainly made of building gypsum, mixed with appropriate amount of cement or fly ash, and at the same time added a small amount of reinforcing fiber (such as glass fiber, paper reinforcement, etc.), and can also add appropriate amount of expanded perlite and other additives. Lightweight panels made by slurry mixing, pouring molding, core pulling, drying and other processes. In the traditional production method of the existing gypsum hollow slats, in order to ensure the fluidity of the mixture of gypsum powder and water in mechanical production, the water-to-plaster ratio (weight ratio of water to gypsum) of the gypsum hollow slats is generally 0.8-0.9:1. However, the water requirement of hemihydrate gypsum crystallization is only about 16-18%, and the ...

Claims

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Application Information

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IPC IPC(8): C04B28/14B28B3/20
CPCC04B28/142B28B3/20C04B28/143C04B28/144C04B2103/22C04B2103/0068C04B2103/408C04B14/185C04B14/24C04B18/26
Inventor 张庚福
Owner ANHUI SENKE NEW MATERIAL
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