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Green fire door core and manufacturing method of same and fire door

A fire-resistant door core and green technology, applied to fire-resistant doors and other directions, can solve the problems of poor fire-resistant and heat-insulating performance and poor mechanical strength of the fire-resistant door core, and achieve the goal of improving the overall function of fire-resistant and heat-insulating, reducing production costs, and inhibiting mildew Effect

Inactive Publication Date: 2013-05-08
邝钜炽 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a high-performance green fire-resistant door core that does not use fire-resistant boards and greatly saves glue, and its manufacturing method and fire-resistant door. Problems such as poor performance and poor mechanical strength

Method used

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Examples

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preparation example Construction

[0043] The present invention also provides the preparation method of the green fireproof door core, which is specifically carried out in the following steps:

[0044] Put the magnesium salt into a blender and add water to dissolve;

[0045] Add magnesia, glass fiber and additives, stir well and react at room temperature for 8-15 minutes;

[0046] Add the foaming agent into the mixer, stir and foam evenly for 5-12 minutes (depending on the required bulk density, the door panel requires high strength, high bulk density, and short foaming time; the door panel requires low strength, low bulk density, and the foaming time long);

[0047] Put the perlite combination into the mixer and stir for 2-8 minutes until the volume of the slurry is stable, and a paste slurry is obtained;

[0048] Put the paste slurry into the pre-prepared fire door core frame;

[0049] Naturally cured for 8-12 hours under the condition of indoor temperature 20-40℃ and air relative humidity 40-80% for initi...

Embodiment 1

[0066] The fire door core is manufactured according to the following steps:

[0067] 1. Put 25kg of magnesium salt (magnesium chloride and magnesium sulfate, the mass ratio is 5:1) into a mixer and add 30kg of water to dissolve;

[0068] 2. Add magnesium oxide (magnesia active ingredient 65%±2, fineness 200 mesh, purity 85%) 40kg, glass fiber (diameter 1.5mm) 5kg and additives (sodium silicate, colloidal silicon dioxide mass ratio of 1:1) 4.5kg, fully stirred at room temperature for 10 minutes;

[0069] 3. Add 1 kg of foaming agent into the mixer, stir and foam evenly for 10 minutes;

[0070] 4. Put 23kg of perlite combination (the mass ratio of perlite and filler is 5:1, and the filler is calcined kaolin and bentonite with a mass ratio of 1:1) into the mixer and stir for about 8 minutes until the slurry volume is stable as the end point;

[0071] 5. Put the stirred paste slurry into the pre-prepared steel fire door core frame;

[0072] 6. Under the condition of indoor temp...

Embodiment 2

[0076] The fire door core is manufactured according to the following steps:

[0077] 1. Put 33kg of magnesium salt (magnesium chloride and magnesium sulfate, the mass ratio is 4:1) into a mixer and add 40kg of water to dissolve;

[0078] 2. Add magnesium oxide (magnesia active ingredient 65%±2, fineness 200 mesh, purity 85%) 45kg, glass fiber (diameter 3mm) 5kg and additives (aluminum chloride, calcium carbonate, di-tert-nonyl poly The mass ratio of sulfide is 1:1:1) 4kg, fully stirred and reacted at room temperature for 12 minutes;

[0079] 3. Add 1.5 kg of foaming agent into the mixer, stir and foam evenly for 8 minutes;

[0080] 4. Put 26.5 kg of perlite combination (the mass ratio of perlite and filler is 5:1, and the filler is talcum powder) into the mixer and stir for 5-8 minutes until the slurry volume is stable as the end point;

[0081] 5. Put the stirred paste slurry into the pre-prepared wooden fire door core frame;

[0082] 6. Natural curing for 8-12 hours under...

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Abstract

The invention discloses a green fire door core, a manufacturing method of the green fire door core and a fire door. By quality percent, the preparation materials of the green fire door core comprise magnesium oxide 15-40%, magnesium salt 15-35%, vesicant 0.5-5%, glass fiber 1.5-5%, assistant 2-10%, perlite composition 16-30%, and water 20-45%. Door core slurry can be directly filled into a door core frame, gaps and filling dead angles do not exist in the door core frame, the whole function of fire resistance and heat insulation is improved, and the door core is in accordance with A1 level fire protection standard of GB8624-2006. The door core can be relatively strong bound to a wood door panel and steel door pane, and glue is not needed or just a little. Bond strength can be kept still in the oxidation burning atmosphere of 750-1000 DEG c. Due to the fact that chloride does not overflow out of the surface of the door core, the capacity of rust resistance of the steel door panel is greatly improved. The door core has the advantages of preventing a wood door from mildewing, can not release hydrochloric acid (HCL) toxic cloud in the burning atmosphere and is green and environment-friendly.

Description

technical field [0001] The invention relates to the field of fireproof lightweight (foaming) materials, in particular to a high-performance green fireproof door core that does not use a fireproof board and greatly saves glue, a manufacturing method thereof, and a fireproof door. Background technique [0002] In the prior art, the door core used as fireproof filler for fireproof doors is made of four kinds of materials, one is aluminum silicate wool board, which requires high temperature sintering to make cotton during its production process, which has the disadvantages of high energy consumption and environmental pollution. In particular, its board is formed by adding an organic adhesive, which is not only not waterproof, but also produces a large amount of harmful smoke when its adhesive encounters a fire, which has been banned from use. The second type is perlite board. Although it has good thermal insulation and fire protection performance, its strength is very poor. Acco...

Claims

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Application Information

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IPC IPC(8): E06B5/16
Inventor 邝钜炽伍容秀
Owner 邝钜炽
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