Cast-in-situ fireproof material of fireproof door and manufacturing method of fireproof door

Abstract

The invention relates to a cast-in-situ fireproof material of a fireproof door and a manufacturing method of the fireproof door, in particular to a cast-in-situ inorganic gelled material of a fireproof door leaf and a fireproof door frame, comprising the following components by weight percent: 30-60 of magnesia; 17-50 of magnesium chloride solution; 0.5-3 of modifier; 0.1-1 of flock and 5-30 of fly ash, which are mixed to be a liquid inorganic gelled material. The invention has the advantages that the inorganic gelled material is manufactured by a cast-in-situ mode, and no adhesive or no prefabricated inner is needed, thereby the conditions of cracks, filling and uneven material mix in the prior art are avoided, and materials which can evaporate noxious gas after heating are completely cancelled; the inorganic gelled material containing a large amount of foam is filled in a framework, thereby the weight of the whole fireproof door is reduced, and the transportation and the installation efficiencies are greatly enhanced; the foam has good insulation effect, and the solidified foam in the fireproof material can further shrink after pressure processing so as to have complete filling, thereby enhancing the density of the fireproof door and greatly strengthening the fireproof performance.

Description

technical field [0001] The invention relates to a fireproof material for the construction industry, in particular to a cast-in-place inorganic gelling material for fireproof door leaves and frames. Background technique [0002] At present, the fire protection of fireproof doors and frames in the prior art is mainly changed in materials and structures, but all parts of the fireproof doors are made in a split type and then assembled into a complete door leaf and frame. The gaps or joints between the parts are easy to be broken in case of fire, thus reducing the fire prevention effect of the whole fire door. Moreover, many of them use solid objects to fill the gaps in the fire doors. This method is prone to problems such as dead corners that cannot be filled and uneven mixing of various mixed materials. When a fire occurs, the fire resistance of the cracks is much lower than that of other parts. Some fillers will produce harmful substances when heated, endangering human health...

AI Technical Summary

Problems solved by technology

However, rock wool is used for internal hollow filling, which does not meet the requirements of the new national GB12955-2008 standard

Rock wool is solid, if the workers operate carelessly, it will cause gaps and bring fire hazards at the same time