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Fireproof door core material and application thereof in preparation of fireproof door

A fire-proof door core and fire-proof door technology, applied in the field of building materials, can solve the problems of non-toxicity of smoke produced by combustion that cannot meet new standards, inconvenient transportation, construction and installation, and affect the normal use of fire-proof doors, etc., and achieve good social and economic benefits. Use stability, stable strength effect

Inactive Publication Date: 2012-08-29
邓东华 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many existing fire doors are sandwiched with cement core materials in the steel plate to improve the fireproof, heat insulation and sound insulation effects of the door, but the door body is too heavy, which is inconvenient in the process of transportation and construction installation. The hinges used to support the fire doors are also easily bent and deformed by the weight of the doors, thus affecting the normal use of the fire doors
Facing the increasingly severe fire safety situation, the relevant national prevention and control departments have formulated more stringent fire safety regulations. The fire door core filling materials currently in use cannot meet the new standards in terms of fire performance and non-toxicity of smoke produced by combustion. Standard technical requirements, urgently need a new alternative product

Method used

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  • Fireproof door core material and application thereof in preparation of fireproof door
  • Fireproof door core material and application thereof in preparation of fireproof door
  • Fireproof door core material and application thereof in preparation of fireproof door

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The fire door core material of the present invention comprises lightly burned magnesium powder 50Kg, magnesium chloride 12Kg~18Kg, water 12Kg~26Kg, magnesium sulfate 2.5Kg~7Kg, silica sol 0.5Kg~3.5Kg, diffusing agent 0.6Kg~2.3Kg, polypropylene fiber or Vinylon fiber 0.1Kg~1.8Kg, foaming agent 1Kg~3.8Kg.

[0025] The process for preparing a steel fire door according to the components of the above fire door core material comprises the following steps:

[0026] 1) Preparation of brine: dissolving magnesium chloride in water to obtain a magnesium chloride solution with a Baume degree Be of 22 to 28;

[0027] 2) Stirring: put the light-burned magnesium powder into the mixer, start the mixer, add the magnesium chloride solution prepared in step 1) into the mixer and stir with the light-burned magnesium powder for 3 to 5 minutes to make them evenly mixed, then add the silica sol in turn, spread Agent, polypropylene fiber or vinylon fiber, foaming agent, magnesium sulfate, sti...

Embodiment 2

[0037] Adopt the technology of fireproof door core material in embodiment 1 to prepare wooden fireproof door, comprise the following steps:

[0038] 1) Preparation of brine: dissolving magnesium chloride in water to obtain a magnesium chloride solution with a Baume degree Be of 22 to 28;

[0039] 2) Stirring: put the light-burned magnesium powder into the mixer, start the mixer, add the magnesium chloride solution prepared in step 1) into the mixer and stir with the light-burned magnesium powder for 3 to 5 minutes to make them evenly mixed, then add the silica sol in turn, spread Agent, polypropylene fiber or vinylon fiber, foaming agent, magnesium sulfate, stir for 3 to 8 minutes;

[0040] 3) Pouring molding: Pour the magnesium oxychloride cement mixture stirred in step 2) into the inner cavity of the wooden door leaf, and scrape the surface with a scraper; after the initial setting is completed, demould, heat preservation and moisturizing for 3 to 7 days, use The sanding ma...

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Abstract

The invention provides the technology for preparing a fireproof door by using a fireproof door core material. The fireproof door core material comprises the following components in parts by weight: 50 parts of caustic calcined magnesia, 12-18 parts of magnesium chloride, 12-26 parts of water, 2.5-7 parts of magnesium sulfate, 0.5-3.5 parts of silica sol, 0.6-2.3 parts of dispersing agent, 0.1-1.8 parts of polypropylene fiber or polyvinyl alcohol fiber and 1-3.8 parts of foaming agent. The technology for preparing a fireproof door comprises the steps of modulating brine, mixing, casting and molding. The fireproof door core material can overcome the fundamental shortcomings of poor fireproof performance, easy flame over and release of harmful gas during the high-temperature heating process of the existing fireproof door filling core material, achieve or exceed the requirements of the new fire protection technical specification and be an ideal renewal product of the existing fireproof door filling core material; furthermore, the advent of the product can create good social and economic benefits.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a process for preparing a fireproof door by using a fireproof door core material. Background technique [0002] The accredited laboratory designated by the Ministry of Economic Affairs, according to the new version of the national standard for fire doors GB_12955-2008 implemented on January 1, 2009, has passed the test of the fire resistance test method for fire doors, and has obtained the verification registration certificate and authorized logo issued by the Bureau of Standards and Inspection of the Ministry of Economic Affairs , called fire doors. There are actually many types of fire doors. For example, according to materials, there are wooden fire doors, steel fire doors, etc.; according to functions: access control fire doors, indoor fire doors, etc.; according to technology: electronic fire doors, etc. Many existing fire doors are sandwiched with cement core ma...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/32B28B1/14
Inventor 邓东华谢家菊
Owner 邓东华