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Production method of fiber cement board

A fiber cement board and a production method technology, applied in the field of building materials, can solve the problems of cement fiber board not easy to demould, asbestos carcinogenic risk, health hazards of production personnel, etc., and achieve easy demoulding, simple and convenient operation, and high yield. Effect

Inactive Publication Date: 2018-03-13
张克勤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the adhesives used in the production process of cement fiberboard are resins or isocyanates, etc., which are prone to produce harmful gases. Most of the fibers are asbestos fibers. hazards, and the existing cement fiberboard production methods have problems such as difficult demoulding

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A kind of production method of fiber cement board, comprises the following steps:

[0016] (1) According to the size of the fiber cement board, make the abrasive mold of the same size and the bottom surface is a water-permeable sheet, and apply a release agent in the mould;

[0017] (2) 50 parts of magnesium oxychloride cement, 5 parts of wood fiber, 10 parts of fly ash, 8 parts of quartz sand, 3 parts of diatomaceous earth, 0.5 part of modifying agent, 0.5 part of sodium lignosulfonate will be formed by weight Put it in a container and mix it with water, stir to make cement slurry;

[0018] (3) Pour the cement slurry of step (2) into the grinding tool of step (1), at 0.5-1kg / cm 2 Rolling and leveling under pressure, removing moisture, curing at 10-50°C and then releasing the mold.

Embodiment 2

[0020] A kind of production method of fiber cement board, comprises the following steps:

[0021] (1) According to the size of the fiber cement board, make the abrasive mold of the same size and the bottom surface is a water-permeable sheet, and apply a release agent in the mould;

[0022] (2) 60 parts of magnesium oxysulfide cements, 8 parts of wood fibers, 12 parts of fly ash, 9 parts of quartz sand, 5 parts of diatomaceous earth, 0.8 parts of modifiers, 0.6 parts of calcium lignosulfonate are formed by weight parts Put it in a container and mix it with water, stir to make cement slurry;

[0023] (3) Pour the cement slurry of step (2) into the grinding tool of step (1), at 0.5-1kg / cm 2 Rolling and leveling under pressure, removing moisture, curing at 10-50°C and then releasing the mold.

Embodiment 3

[0025] A kind of production method of fiber cement board, comprises the following steps:

[0026] (1) According to the size of the fiber cement board, make the abrasive mold of the same size and the bottom surface is a water-permeable sheet, and apply a release agent in the mould;

[0027] (2) 80 parts of magnesium phosphate cement, 10 parts of glass fiber, 15 parts of fly ash, 12 parts of quartz sand, 10 parts of diatomite, 1 part of modifier, 1 part of naphthalenesulfonate formaldehyde condensate, 1 part of magnesium phosphate cement, 10 parts of glass fiber, 10 parts of diatomaceous earth, 1 part of weight parts put into a container and mix with water, and stir to prepare cement slurry;

[0028] (3) Pour the cement slurry of step (2) into the grinding tool of step (1), at 0.5-1kg / cm 2 Rolling and leveling under pressure, removing moisture, curing at 10-50°C and then releasing the mold.

[0029] Adopting the production method of the present invention to produce fiber cemen...

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Abstract

The invention discloses a production method of a fiber cement board. The production method comprises the following steps: (1) manufacturing molds according to the size of the fiber cement board, wherein the molds have the same size and water-penetration thin plates are arranged on bottom surfaces of the molds; coating a de-molding agent in the molds; (2) putting raw materials of the fiber cement board into a container and mixing the raw materials with water; stirring and blending to prepare cement paste; (3) pouring the cement paste of step (2) into the molds in step (1); rolling and flattening under the pressure of 0.5kg / cm<2> to 1kg / cm<2>; removing water and de-molding after curing at 10 DEG C to 50 DEG C. When the production method is used for manufacturing the fiber cement board, the production method is simple and convenient to operate; a board body is easily de-molded; the board body is not easily damaged and the rate of finished products is high; the produced fiber cement boardhas the advantages of environmental friendliness and health, uneasiness of being cracked, good waterproof performance and the like.

Description

technical field [0001] The invention relates to a production method of a fiber cement board, which belongs to the technical field of building materials. Background technique [0002] At present, most of the adhesives used in the production process of cement fiberboard are resins or isocyanates, etc., which are prone to produce harmful gases. Most of the fibers are asbestos fibers. harm, and the existing production methods of cement fiber boards have problems such as difficult demoulding. Contents of the invention [0003] In view of this, the present invention provides a production method of fiber cement board to overcome the above-mentioned deficiencies mentioned in the prior art. [0004] For solving above technical problem, technical scheme of the present invention has adopted a kind of production method of fiber cement board, and it comprises the following steps: [0005] (1) According to the size of the fiber cement board, make the abrasive mold of the same size and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/30C04B28/32C04B28/34
CPCC04B28/30C04B28/32C04B28/344C04B16/02C04B18/08C04B14/06C04B14/08C04B2103/0068C04B24/18C04B24/226
Inventor 张克勤
Owner 张克勤
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