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A fire door core filling material and its application

A fire-proof door and core-filling technology, which is applied to fire-proof doors and other directions, can solve problems such as inconvenient handling and installation, anti-halogenation of the door core board, corrosion of steel door panels, etc., and achieves convenient handling and installation, light weight and good performance indicators Effect

Inactive Publication Date: 2016-06-29
重庆远东门窗有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Chinese patent document CN101623894 discloses a processing method of lightweight inorganic foamed perlite fireproof door core board, which utilizes the advantages of perlite in preparing fireproof door core materials, and uses seamless filling technology to avoid gaps The problem, however, is that it also uses a magnesite cement system of magnesium chloride and magnesium oxide. This system is a metastable system. After absorbing water, the door core material will undergo electrolysis, which will cause the door core board to produce anti-halogen phenomenon, and then corrode the steel. Door panels, which is a fatal flaw for steel fire doors
[0004] Chinese patent document CN102477838 discloses an environment-friendly perlite fireproof door core board that does not corrode steel plates, which avoids the use of magnesite cement system. Although the obtained door core board does not corrode steel plates, due to its material composition , the overall quality of the door core board is relatively heavy, and it is inconvenient to carry and install

Method used

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  • A fire door core filling material and its application
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  • A fire door core filling material and its application

Examples

Experimental program
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Effect test

Embodiment 1-5

[0029] Prepare raw materials according to the weight ratio of raw materials in Table 1. Steel fire doors are manufactured in the following steps:

[0030] (1) Pour magnesium sulfate into water to melt, then pour magnesium oxide into the magnesium sulfate solution and stir evenly to obtain a mixed solution;

[0031] (2) Add the mixed solution of step (1) to it under perlite stirring;

[0032] (3) After the perlite and the mixed solution are stirred evenly, pour in boron oxide, bentonite, calcium hydroxide and lignin, and mix evenly to obtain a core material that can be used for fire door filling;

[0033] (4) Inject the core filling material obtained in step (3) into the fire door, heat it to 80°C after compaction, and keep it warm for 20 minutes, and it is ready.

[0034]

experiment example

[0055] According to GB12955-2008 "New Standard for Fire Doors", the following items were tested on Examples 1-5 and Comparative Examples 1-7, and the test results are shown in Table 3-4.

[0056]

[0057]

[0058] As can be seen from Table 3, the compressive strength of the fire door filler core obtained according to the present invention is above 1MPa, the flexural strength is above 0.1MPa, and the thermal conductivity, flame-resistant temperature and fire-resistant limit all meet the standard requirements; and Table 4 shows that when changing Under the situation of component ratio and preparation process, all more or less can't meet standard requirement. Therefore, under the premise that there will be no anti-halogen in the fire door core filling material of the present invention, the components will act synergistically, so that the performance indicators of the obtained material such as compression resistance, flexural resistance, and fire resistance all meet the standar...

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Abstract

The invention relates to a fire door core filling material and its application. The fire door core filling material is made of the following raw materials in weight ratio: 30-40 parts of perlite, 14-22 parts of bentonite, 10-14 parts of magnesium sulfate, 16-24 parts of magnesium oxide, and 8-12 parts of calcium hydroxide , 4-6 parts of boron oxide, 4-8 parts of lignin and appropriate amount of water. Since the fire door core filling material of the present invention does not use magnesite cement system, does not contain halogen, and does not have anti-halogen phenomenon, and because of the synergistic effect between various components, it has good performance indicators such as compression resistance, flexural resistance, and fire resistance, and the overall It is light in weight, easy to carry and install, and can be widely used as fire door core, fireproof sealing material, thermal insulation and sound insulation material, etc.

Description

technical field [0001] The invention relates to the technical field of fireproof materials, in particular to a fireproof door core filling material and its application. Background technique [0002] In the prior art, as the core material for steel fire doors, one is aluminum silicate cotton board, which requires high-temperature sintering to make cotton during its production process, which has the defects of high energy consumption and environmental pollution, especially its board is made of additives It is not only not waterproof, but its adhesive produces a lot of harmful smoke in case of fire, and its use has been banned. The other is perlite board. Although it has good thermal insulation and fire protection performance, its strength is very poor. According to some data, the damage rate in the process of transportation and installation is as high as 30%, which not only increases the cost of use, but also affects the quality of the board due to its fragility. The fireproo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/30E06B5/16C04B14/18C04B14/12
Inventor 易崇良
Owner 重庆远东门窗有限公司
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