Inorganic fireproof board and its manufacturing method

Abstract

The invention relates to inorganic fireproof sheets and a production method therefor. The inorganic fireproof sheets are prepared from the ingredients in percentage by mass: 50% to 94% of inorganic mineral powder, 4% to 10% of fibers, 5% to 45% of filler and 0.5% to 6% of binding agent. The production method for the inorganic fireproof sheets comprises the steps of uniformly mixing the inorganic mineral powder, the fibers, an excitant, the filler and water so as to prepare slurry with the mass concentration of 5% to 40%, preparing sheet blanks by a copying, slurry flowing or die pressing method, carrying out curing at the temperature of 20 DEG C to 90 DEG C, and carrying out drying, sanding and cutting, thereby preparing the inorganic fireproof sheets. The sheets prepared by the method have the characteristics of environment-friendliness, low production cost, high production efficiency, light weight, high strength, fire prevention and heat insulation, thereby being capable of being extensively applied to the fire-resistive partition and explosion protection of fire doors, hung ceilings and partition walls and the fireproof coating of air pipes, steelwork beam-columns, wire cables and the like.

Description

technical field

[0001] The invention relates to the field of home building materials, in particular to an inorganic fireproof board and a manufacturing method thereof. Background technique

[0002] Commonly used fireproof panels for suspended ceilings and partition walls in building materials include fiber cement boards, gypsum boards, glass magnesium boards, vermiculite boards and resin composite boards. And other defects, only suitable for the application of various fireproof linings; gypsum board loses its strength at 130°C, so the fire resistance time limit is short in the event of a fire, and it is not suitable for high-level fireproof applications; the fireproof rating of vermiculite board is very high. High, but the strength is limited and the decoration is poor; because the resin composite board uses organic resin, its weather resistance is not good, long-term use deformation or volatile organic compounds will have adverse effects on human health; fiber cement board ...

Examples

Embodiment Construction

[0015] The present invention will be further described below in conjunction with embodiment:

[0016] Examples The composition and test results of the inorganic fireproof boards prepared in the examples are given in Table 1.

[0017] Prepare the inorganic fireproof board with the following steps:

[0018] 1) Mixing: Measure the raw materials, fully dissolve the cement in water, mix evenly with water in a high-speed mixer, and control the mass concentration of the slurry to 18%.

[0019] 2) Board making: The mixed slurry is dehydrated by the commonly used method of making fiber cement boards, such as drawing method, flow method or molding method, to make a slab of a certain thickness.

[0020] 3) Curing: Curing in a curing room for 4-48 hours at 20-80°C.

[0021] 4) Drying: Dry the cured slabs with a dryer until the water content is less than 10%, then sand them and cut them into inorganic fireproof boards of required size.

[0022] 5) Testing: test the flexural strength, de...

technical field

[0001] The invention relates to the field of home building materials, in particular to an inorganic fireproof board and a manufacturing method thereof. Background technique

[0002] Commonly used fireproof panels for suspended ceilings and partition walls in building materials include fiber cement boards, gypsum boards, glass magnesium boards, vermiculite boards and resin composite boards. And other defects, only suitable for the application of various fireproof linings; gypsum board loses its strength at 130°C, so the fire resistance time limit is short in the event of a fire, and it is not suitable for high-level fireproof applications; the fireproof rating of vermiculite board is very high. High, but the strength is limited and the decoration is poor; because the resin composite board uses organic resin, its weather resistance is not good, long-term use deformation or volatile organic compounds will have adverse effects on human health; fiber cement board ...

Examples

Embodiment Construction

[0015] The present invention will be further described below in conjunction with embodiment:

[0016] Examples The composition and test results of the inorganic fireproof boards prepared in the examples are given in Table 1.

[0017] Prepare the inorganic fireproof board with the following steps:

[0018] 1) Mixing: Measure the raw materials, fully dissolve the cement in water, mix evenly with water in a high-speed mixer, and control the mass concentration of the slurry to 18%.

[0019] 2) Board making: The mixed slurry is dehydrated by the commonly used method of making fiber cement boards, such as drawing method, flow method or molding method, to make a slab of a certain thickness.

[0020] 3) Curing: Curing in a curing room for 4-48 hours at 20-80°C.

[0021] 4) Drying: Dry the cured slabs with a dryer until the water content is less than 10%, then sand them and cut them into inorganic fireproof boards of required size.

[0022] 5) Testing: test the flexural strength, de...

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