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Inorganic fireproof door core material plate

A fire door core and material board technology, which is applied in the field of fire door components, can solve the problems of poor strength, core material board fragmentation, fire door core material board fragmentation, etc., and achieve high strength, good thermal insulation performance, and good The effect of fire retardant properties

Active Publication Date: 2012-03-14
CHONGQING YUWANTONG NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In 2008, the Ministry of Public Security drafted a new version of the standard GB12955-2008 for fire doors. The new standard stipulates that non-degradable fibers should not be used as fire door core materials in fire door core materials. According to the current domestic technical conditions, fire door core materials can only be Use perlite plus organic glue and inorganic glue to form a board
Due to the poor strength of perlite itself, after bonding with the steel plate or multi-layer board, the processing deformation, thermal deformation, and collision deformation of the thin steel plate will easily lead to the cracking of the fire door core material board, thus affecting the overall performance of the fire door. performance
After the multi-layer board is bonded to the core board made of perlite, the core board is easily broken by external impact during transportation and installation. In the event of a fire, when the multi-layer board is burned out, the fire door will Fall apart by itself, lose the function of fire door

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0013] This inorganic fireproof door core material plate is made by the steps of following sequence:

[0014] (1) Add 1Kg polypropylene fiber, 5Kg fly ash and 20Kg nano-SiO2 to 100KgMgO, and vibrate and stir to obtain a mixture of 126Kg.

[0015] (2) Add 189Kg1°Bé MgSO4 aqueous solution to the obtained mixture, and add 47.25Kg (the total amount of mixture and MgSO4 aqueous solution is 15%) AB glue, 0.142 Kg (AB glue amount 3‰) glue additive type AB, stir well and add 0.945 Kg (mixture and MgSO4 aqueous solution total amount 3‰) cement foaming aid, 2.52 Kg (mixture and MgSO4 aqueous solution total amount 8‰) cement foaming agent, stir evenly, and add 0.366 cubic meters of carbon dioxide gas during the stirring process (that is, the amount of carbon dioxide gas added per 1000 kg of agitator is 1 cubic meter).

[0016] (3) Put the mixture obtained in step (2) into a plate mold, and release it after curing at 35°C for 48 hours, and continue to cure at room temperature for 20 days...

Embodiment approach 2

[0018] This inorganic fireproof door core material plate is made by the steps of following sequence:

[0019] (1) Add 15Kg polypropylene fiber, 10Kg fly ash and 1Kg subnanometer SiO2 to 100KgMgO, and vibrate and stir to obtain a mixture of 126Kg.

[0020] (2) Add 84Kg 40°Bé MgSO4 aqueous solution to the obtained mixture, and add 84Kg (the total amount of the mixture and MgSO4 aqueous solution is 40%) AB glue, 1.26 Kg (AB glue amount 15‰) glue additive AB type, after fully stirring, add 1.68 Kg (mixture and MgSO4 aqueous solution total amount 8‰) cement foaming aid, 2.52 Kg (mixture and MgSO4 aqueous solution total amount 12‰) cement foaming agent, stir evenly, and add 0.599 cubic meters of carbon dioxide gas ( That is, the amount of carbon dioxide gas added per 1000 kg of agitator is 2 cubic meters).

[0021] (3) Put the mixture obtained in step (2) into a plate mold, and release it after curing at 65°C for 24 hours, and continue curing at room temperature for 30 days.

Embodiment approach 3

[0023] (1) Add 8Kg polypropylene fiber, 8Kg fly ash and 10Kg nano-SiO2 to 100KgMgO, and vibrate and stir to obtain a mixture of 126Kg.

[0024] (2) Add 126Kg 20°Bé MgSO4 aqueous solution to the obtained mixture, add 70.56Kg (the total amount of mixture and MgSO4 aqueous solution is 28%) AB glue, 0.635 Kg (AB glue amount 9‰) glue additive type AB, stir well and then add 0.353 Kg (the total amount of mixture and MgSO4 aqueous solution is 5‰) cement foaming aid, 0.706 Kg (the total amount of mixture and MgSO4 aqueous solution is 10‰) cement foaming agent, stir evenly, and add 0.486 cubic meters of carbon dioxide gas during the stirring process (That is, the addition of carbon dioxide gas per 1000 kg of agitator is 1.5 cubic meters).

[0025] (3) Put the mixture obtained in step (2) into a plate mold, and release it after curing at 50°C for 36 hours, and continue curing at room temperature for 25 days.

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PUM

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Abstract

The invention relates to an inorganic fireproof door core material plate, which is formed by forming a mixture from polypropylene fibre, flyash, nano or sub-nano SiO2, mixing the mixture with MgSO4 aqueous solution, AB glue, AB type glue additive, cement foaming assistant agent, cement foaming agent and carbon dioxide gas and curing. The inorganic fireproof door core material plate is very good in fireproof flame retardant property and very good in thermal insulation property. Furthermore, the inorganic fireproof door core material plate is high in intensity; and the combustion property is upto national A1-level standard.

Description

technical field [0001] The present invention relates to components in fire doors, especially fire door core panels. Background technique [0002] In 2008, the Ministry of Public Security drafted a new version of the standard GB12955-2008 for fire doors. The new standard stipulates that non-degradable fibers should not be used as fire door core materials in fire door core materials. According to the current domestic technical conditions, fire door core materials can only be The board is made of perlite plus organic glue and inorganic glue. Due to the poor strength of perlite itself, after bonding with the steel plate or multi-layer board, the processing deformation, thermal deformation, and collision deformation of the thin steel plate will easily lead to the cracking of the fire door core material board, thus affecting the overall performance of the fire door. performance. After the multi-layer board is bonded to the core board made of perlite, the core board is easily bro...

Claims

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Application Information

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IPC IPC(8): B28B1/14C04B38/02C04B28/30
Inventor 徐小波
Owner CHONGQING YUWANTONG NEW MATERIAL TECH
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