Combination fire-proof door and method for making same

Abstract

The invention relates to a fire safety building equipment, in particular to a combination fire door and a fabricating method, in the scheme, a new expanding material is adopted and mixed with water and then poured into a door frame and a door leaf frame, the expanding material is composed of sulphate aluminium cement, silicate cement, coal ash and modifying agent, the contents of which are respectively 4-15 percent, 50-65 percent, 18-35 percent and 2-10 percent according to the weight percentages, wherein the modifying agent comprises early strength agent, water reducing agent, suspending agent, diffusing agent, foaming solution and foam stabilizer, the weight percentages of which in the modifying agent are respectively 5.4-34.6 percent, 3.3-39.6 percent, 5.4-28.8 percent, 2.7-21.6 percent, 3.8-27.4 percent and 1.1-25.9 percent; in the foaming solution, weight percentages of the foaming agent and water are 1.6-3.5 percent, weight percentages of the mixture of water and the expanding material is 45-72 percent. In the scheme, the adoption of the foam molding fillers of liquid materials can ensure the fillers in the door frame and the door leaf frame are solidly filled without dead corner, in addition, the material has no harmful substances, accounts for one tenth of concrete mortar, and can be directly poured by the manufacturer, therefore, the late-stage in-situ concreting procedure is avoided. The materials in use are uniform and free from peculiar smell, thus ensuring completeness, reliability and security of the fire door.

Description

technical field [0001] The invention relates to a fire safety building equipment, in particular to a combined fire door and a manufacturing method. Background technique [0002] The door frame and door leaf of conventional fire doors are filled with rock wool, asbestos, aluminum silicate wool or other organic materials, which are dangerous to the human body. According to the requirements of the new standard, when some solid materials are used to fill the door leaf, the filling cannot be guaranteed, and the qualified rate of the fire doors in the spot check is low. [0003] In 1994 CN2213222 and 1997 CN2294324 patents, the applicant proposed an integral forming method for magnesia composite fire doors and fire doors, using magnesia cementitious materials and glass fiber cloth as reinforcing materials, filled with rock Cotton, aluminum silicate wool, calcium plastic, asbestos, etc. are solidified under the action of molds under high temperature and high pressure to form woode...

AI Technical Summary

Problems solved by technology

[0002] The door frame and door leaf of conventional fire doors are filled with rock wool, asbestos, aluminum silicate wool or other organic materials, which are dangerous to the human body. According to the requirements of the new standard, when some solid materials are used to fill the door leaf, the filling cannot be guaranteed, and the qualified rate of the fire doors in the spot check is low

[0003] In 1994 CN2213222 and 1997 CN2294324 patents, the applicant proposed an integral forming method for magnesia composite fire doors and fire doors, using magnesia cementitious materials and glass fiber cloth as reinforcing materials, filled with rock Cotton, aluminum silicate wool, calcium plastic, asbestos, etc. are solidified under the action of molds under high temperature and high pressure to form wooden fire doors. The overall structure of the fire doors is good, and the fire doors have good fire performance. According to the new standard of "Fire Doors" in 2008, the standards of some local indicators have been greatly changed, and higher requirements are put forward in terms of fire resistance

Some of the existing steel fire doors are filled with concrete mortar in the door frame. Due to the heavy weight, the transportation is affected, so the inside of the fire doors are not filled when they leave the factory, and some are refilled when they are transported to the site for installation. Installation starts after perfusion, which will bring hidden dangers to future safety

Images