KR102152771B1 - Fire door manufacturing method and fire door by the manufacturing - Google Patents

Abstract

The present invention relates to a fire door, which is installed on an entrance for entering indoors and outdoors and an emergency passage. More specifically, the fire door is manufactured by forming a flame resistant coating layer and a flame resistant adhering layer on one surface of a panel for manufacturing the fire door in order, allowing the flame resistant coating layer and the flame resistant adhering layer to be positioned on an inner surface of the fire door, and inserting a honeycomb core thereinto, wherein the flame resistant coating layer is formed by being compressed and dried in a high density state through a heating roller after paint and insulation are mixed and applied and the flame resistant adhering layer is configured to have increased bonding and fixing force with the core by mixing the insulation with flame retardant adhesives to apply the same, thereby improving flame resistant and fireproof performance with respect to the fire door due to the double flame resistant coating layer using the insulation which is powder of a microscopic hollow sphere, increasing insulating and soundproofing effects, and preventing dew condensation. In the fire door, the double flame resistant coating layer is formed on the inner surface of the fire door not to be exposed at all from the outside and not to affect the overall thickness of the fire door at all, thereby being very reasonable.

Description

Fire door manufacturing method and fire door by the manufacturing method with improved performance

The present invention relates to a fire door installed at an entrance for entering or leaving the room or an emergency passage, and more particularly, a flame-retardant coating layer and a flame retardant on the inner surface of the fire door using an insulating powder, which is a microscopic hollow sphere. By sequentially forming the adhesive layer, excellent fire protection, flame retardant performance and heat insulation properties due to the double insulating coating layer are obtained, as well as a method of manufacturing a fire door that can suppress condensation and improve sound insulation, and a fire door by the method.

Common fire doors are mainly used as entrance doors for general houses, apartments, factories, offices, prefabricated temporary buildings, etc. or as opening and closing doors for emergency passages, preventing external fires from spreading indoors, or fires occurring indoors to the outside. It is generally made of a solid metal material to prevent it from being made, and it must meet the requirements of the physical properties that the door or emergency door should not be burned or deformed even by strong internal heat during a fire.

In particular, as buildings or apartments have become very high-rises, the risk of fire is increasing a lot.If the spread of flames and smoke cannot be prevented when a fire occurs, people living in high-rises will suffer from smoke suffocation or moving fire. Because property damage occurs, the role of fire doors is very important. In addition, in order to lighten the load of the fire door, which is usually made of metal, the front panel and the rear panel are separately formed, and a honeycomb-shaped honeycomb core is inserted in the spaced space to lighten the weight of the fire door, while providing heat insulation, sound insulation, and heat dissipation. Excelled.

In addition, in order to install the fire door as described above, it is installed in a frame made of a rectangular frame of a certain shape, and a hinge corresponding to a hinge axis fixedly mounted to the upper and lower ends of the fire door at one side of the frame Has.

These fire doors are being developed in various forms for the purpose of improving assembly, heat insulation, sound insulation and fire resistance, and the combination of upper, lower, left, and right formed on the back of the outer panel as in Patent No. 10-0766339. The upper, lower, left, and right coupling parts formed on the front of the inner panel are fitted to the end to improve the aesthetics of the interface between the inner and outer panels, and the inner and outer panels can be quickly installed without additional assembly parts. A fire door and its manufacturing method have been devised and registered so that it can be combined to improve workability, and to allow the inner and outer panels to be combined without welding, so that a colored steel plate coated with various patterns and colors can be used.

Next, as in Registration Patent No. 10-0982752, it relates to a fire door installed at an entrance for entering and exiting the interior or outside or an emergency passage. More specifically, a fire door having an internal space due to the corresponding bonding of the front panel and the rear panel. In the inner space, a honeycomb core is inserted into the inner space, but the space between the honeycomb cores is filled with pearlite or vermiculite powder, which is an eco-friendly material, and the honeycomb core and the filler are formed by filling the front panel and the rear panel. By configuring to be fixed by the urethane foam adhesive layer applied to the inner surface, the honeycomb core spread and deployed inside the fire door is uniformly fixed, so that the uniformity of the durability of the entire fire door is guaranteed, and is accommodated in the voids of the honeycomb core. Due to its excellent physical properties, pearlite or vermiculite powder, which is an eco-friendly material, prevents thermal deformation of the fire door, and at the same time further improves insulation, sound insulation, and fire resistance.Since the manufacturing process is simple, the method of manufacturing fire door that enables mass production It has been drafted and registered.

In addition, as in Patent No. 10-1942861, a fire door made of an inner reinforcing frame and an exterior plate and a pair of thermal deformation preventing members corresponding to the door frame are organically connected to prevent heat deformation and distortion of the fire door due to high heat in case of fire. A fire door equipped with a thermal deformation prevention member to prevent the flame and heat at the point of fire from spreading to the opposite side has been devised and registered.

However, in the general fire door as described above, since both the front panel and the rear panel are made of metal plates, when a fire occurs indoors or outdoors, the high temperature heat from the fire is transmitted to the front panel and the rear panel made of the metal plate. Heat deformation of the fire door made of metal plate occurs, and when warping or bending occurs due to the heat deformation of the fire door as described above, there is a problem that flames or toxic gases are introduced through the gap with the door frame. .

In addition, the existing fire door has a problem that the sound insulation effect is relatively inferior.The front panel and the rear panel made of metal plates are butt welded, and a honeycomb core made of lightweight paper is placed between the front panel and the rear panel. Since it is inserted, it cannot effectively block noise generated indoors or outdoors, as well as fire doors made of metal panels are very vulnerable to insulation and condensation.

Korean Patent Registration 10-0766339 (registered on October 5, 2007) Korean Patent Registration 10-0982752 (2010.09.10. registered) Korean Patent Registration 10-1942861 (registered on January 22, 2019)

The present invention is to improve the problems as described above, and a flame-retardant coating layer and a flame-retardant adhesive layer are sequentially formed on one surface of a panel for manufacturing a fire door, and the flame-retardant coating layer and the flame-retardant adhesive layer are located on the inner surface of the fire door and at the same time inside. Produce a fire door with a comb core inserted, and the flame-retardant coating layer is formed by mixing paint and insulation and then compressing and drying it in a dense state through a heating roller, and the flame-retardant adhesive layer is insulated in a flame-retardant adhesive. By mixing and forming a coating to increase the adhesion and fixation force with the core,

An object of the present invention is to provide a fire door manufacturing method and a fire door according to the method of manufacturing a performance-enhancing fire door having features such as minimizing condensation and improved sound insulation, as well as improving excellent heat insulation and fire protection performance by the flame-retardant coating layer and the flame-retardant adhesive layer. There is.

The present invention for achieving the object as described above, and a panel cutting process for manufacturing a fire door; A flame-retardant coating layer forming step of applying a flame-retardant coating solution in which paint and insulation are mixed on one surface of the cutting panel; A compression drying step of compressing and drying the cutting panel on which the flame retardant coating layer is formed using a heating roller and natural drying; A flame-retardant adhesive layer forming step of applying a flame-retardant adhesive solution in which an adhesive and an insulation are mixed on the surface of the flame-retardant coating layer of the cutting panel; After placing the honeycomb core on the top of the flame-retardant adhesive layer, another cutting panel on which the flame-retardant adhesive layer is formed is placed on the top of the honeycomb core, and a pair by the flame-retardant adhesive layer of the cutting panel formed on the top and bottom of the honeycomb core. A core fixing step of bonding and fixing the Hanacom core between the cutting panels of the A panel finishing step of bending and bonding the ends of each cutting panel to which the honeycomb core is fixed to the inner side; It can be completed by sequentially performing a surface coating layer forming process of applying a paint to the outer surface of the cut panel that has been mutually bonded.

The present invention is capable of improving the flameproof and fireproof performance of the fire door due to the double flameproof coating layer using an insulating powder, which is a microscopic hollow sphere, and also increases the insulation and soundproof effect, while preventing condensation. It is very reasonable because the double flame retardant coating layer is formed on the inner surface of the fire door and is not exposed at all from the outside and does not affect the overall thickness of the fire door at all.

1 is an overall perspective view of a fire door according to the present invention
2 is an overall cross-sectional view of the fire door according to the present invention
3 is a block diagram for each manufacturing process of a fire door according to the present invention
4 is a first detailed view for each manufacturing process of a fire door according to the present invention
5 is a second detailed view for each manufacturing process of a fire door according to the present invention
6 is an enlarged cross-sectional view of a fire door according to the present invention

Additional objects, features, and advantages of the present invention may be more clearly understood from the following detailed description and accompanying drawings.

Prior to the detailed description of the present invention, the present invention can be made various modifications and various embodiments, and the examples described below and shown in the drawings are intended to limit the present invention to specific embodiments. It should be understood as including all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

In addition, when a component is referred to as being "connected" or "connected" to another component, it may be directly connected or connected to the other component, but other components may exist in the middle. It should be understood that there is. On the other hand, when a component is referred to as being "directly connected" or "directly connected" to another component, it should be understood that there is no other component in the middle.

Subsequently, the terms used in the present specification are used only to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, but one or more other features. It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

In addition, terms such as "... unit", "... unit", and "... module" described in the specification mean a unit that processes at least one function or operation, which is hardware, software, or hardware and It can be implemented as a combination of software.

In addition, in the description with reference to the accompanying drawings, the same reference numerals are assigned to the same components regardless of the reference numerals, and redundant descriptions thereof will be omitted. In describing the present invention, when it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an overall perspective view of a fire door according to the present invention, FIG. 2 is an overall cross-sectional view of the fire door according to the present invention, and FIG. 3 is a block diagram for each manufacturing process of the fire door according to the present invention.

As shown in the figure, the fire door according to the present invention is made to increase the effect of flame-proofing and fire-proofing the entire fire door, improving insulation performance, and preventing condensation by forming a multi-layered flame-retardant layer on the entire inner surface of the fire door. The panel cutting process is first performed for manufacturing.

At this time, in the panel cutting process, the panel is cut to fit the designed values of the front panel 10 and the rear panel 20 for constructing the fire door, and each of the front panel 10 and the rear panel 20 as described above is At the ends, bent portions for bonding and finishing between panels may be formed together.

Subsequently, a flame retardant coating layer 30 and 30 ′ is formed on one surface of the cut panel made by performing the panel cutting process as described above, that is, the entire surface to be located inside the fire door, and the flame retardant coating layer 30 ) (30') may consist of applying a flame retardant coating solution obtained by mixing an insulating powder with a liquid paint such as paint on the entire surface of the panel.

Here, the above paint plays a role of imparting the sound absorption and sound insulation properties of the paint to the panel while performing a rust prevention function for the entire panel surface, and the insulating powder mixed in the paint is flame retardant for the panel. And it is to produce a fireproof effect.

That is, the insulating powder is a unique and innovative additive designed to be easily mixed and used in all kinds of paints. It is a microscopic hollow sphere powder having a size of 30 to 100 microns (㎛) based on aluminum silicate. , It is known to exhibit excellent heat reflection and heat resistance effects by forming a ceramic film of a closed air layer.

In addition, it is an environmentally friendly material that does not have any volatile organic compounds (VOC) and toxicity as well as eight harmful heavy metals.It is a non-combustible material with a melting point of about 1,800℃, and the film has a compressive strength of about 3,000N/cm3, which is a very hard structure. It is a material that has excellent durability and exhibits a semi-permanent insulation effect.

This is very excellent in blocking solar radiation heat in summer (equivalent to 200mm glass fiber and 100mm urethane foam), as well as blocking heat loss by indoor convection in winter (equivalent to 50mm glass fiber and 25mm urethane foam), and condensation due to temperature difference indoors and outdoors in winter. The prevention effect is also very excellent, and it is widely known to have an effect of blocking about 89% of ultraviolet rays, suppressing an increase in sensational temperature caused by ultraviolet rays, and suppressing paint aging.

In addition, in terms of physical properties, it has excellent anti-corrosion performance (acid resistance, alkali resistance and weather resistance), and excellent flame retardancy, condensation prevention, insect repellency, sound insulation, abrasion resistance, impact resistance, etc., and the physical properties and color of the paint itself when mixed with paint It does not change and has a semi-permanent life.

Subsequently, in the case of the flame-retardant coating layers 30 and 30 ′, the flame-retardant coating layers 30 and 30 ′ are formed on one side of the panel with a predetermined thickness by the mixed insulating powder. If it is too thick, since the total thickness of the fire door may be thickened, a compression drying process is performed on the flame retardant coating layer to prevent this.

That is, the panel in the state in which the flame-retardant coating layers 30 and 30' are applied on the surface as described above is heated and dried simultaneously with the flame-retardant coating layers 30 and 30' through a heating roller as shown in FIG. Compression is performed, and due to the heat drying of the paint component and compression by a heating roller, the flame retardant coating layers 30 and 30 ′ have a very dense state of the insulation powder, and at the same time, the flame retardant coating layer 30 ) The thickness of (30') is formed thin with a high density that does not affect the thickness of the existing fire door.

In the state of having a plurality of cutting panels that have undergone such a compression drying process, a process of additionally forming flame-retardant adhesive layers 40 and 40 ′ on the surface of the flame-retardant coating layers 30 and 30 ′ on these cutting panels is performed. The flame-retardant adhesive layers 40 and 40 ′ are formed by mixing a liquid flame-retardant adhesive or a liquid inorganic adhesive with an insulating powder on the surface of the flame-retardant coating layers 30 and 30 ′. It is applied to and made as shown in FIG. 5.

The flame-retardant adhesive layers 40 and 40 ′ serve to adhere and fix the honeycomb core 50, which is a material inside the fire door, and at the same time have a flame-retardant and fire-retardant performance enhanced by the mixed insulation.

Therefore, after forming the flame retardant adhesive layer 40, 40' on the surface of the flame retardant coating layer 30, 30' of the cut panel to be used as the front panel 10 and the rear panel 20, the front panel 10 The honeycomb core 50 is pressed and placed on the flame-retardant adhesive layer 40, 40' of the honeycomb core 50, and the flame-retardant adhesive layer 40, 40' faces the lower side of the honeycomb core 50. A core fixing process of placing the rear panel 20 so that the front panel 10, the honeycomb core 50, and the rear panel 20 are firmly bonded and fixed to each other by the flame-retardant adhesive layer 40, 40'. If performed, the state as shown in the cross section of FIG. 6 is created.

At this time, the flame-retardant adhesive layers 40 and 40 ′ serve to adhere and fix each panel and the honeycomb core 50 to each other as described above, and at the same time, excellent adhesion to the flame-retardant coating layers 30 and 30 ′. And it is to realize a laminated structure, further enhanced flame retardant and fire retardant performance, heat insulation and condensation by the insulating powder contained in the flame retardant adhesive layer 40, 40' together with the flame retardant coating layer 30, 30' It will produce a preventive effect.

Here, the inorganic adhesive in which the powdered insulating powder is mixed is a non-flammable adhesive, which prevents the spread of fire by foaming the inorganic adhesive in the event of a fire, and does not emit toxic gases.It has excellent adhesion and does not burn, and has no skin irritation. It is well known as an eco-friendly, pollution-free adhesive that does not cause environmental pollution such as sick house syndrome because it does not emit formaldehyde and volatile organic compounds. In addition, cement and stone, as well as wood and fiber, styrofoam, gypsum board, and magnesium board have excellent mutual adhesion (e.g., Easy Bond).

Then, any one selected from among the honeycomb core 50, glass wool, and mineral wool is firmly bonded between the front panel 10 and the rear panel 20 by the flame-retardant adhesive layer 40, 40' as described above. When fixed, a panel finishing process is performed in which the corresponding ends of the front panel 10 and the rear panel 20 are bent and bonded to each other to form a fire door as a whole.

In addition, after performing the panel finishing process as described above, a surface coating layer forming process in which a paint such as paint is applied to the outer surfaces of the front panel 10 and the rear panel 20 can be performed. In the layer formation process, a post-process such as simple application of a paint or heat treatment for the applied paint may be added, and a material or painting process for the surface coating layers of the front panel 10 and rear panel 20 if necessary. It could be applied differently.

The fire door of the present invention made through the manufacturing process for each of these processes includes various surface coating layers 60 and 60 ′ formed on the outer surfaces of the front panel 10 and the rear panel 20 corresponding to the outer surface of the fire door. The rust prevention and decoration of the surface is produced, and the inner surfaces of the front panel 10 and the rear panel 20 corresponding to the inner surface of the fire door have a flame retardant coating layer 30, 30' and a flame retardant adhesive layer 40, 40. ') is sequentially formed in a state that contains the insulated red, thus forming a four-fold flame-retardant layer by these flame-retardant coating layers (30) (30') and flame-retardant adhesive layers (40) (40') and flame-retardant to the entire fire door. And it improves fire prevention efficiency and heat insulation performance, and further produces the effect of sound insulation and condensation suppression.

The configurations shown in the embodiments and drawings as described above are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention, so various equivalents and modifications that can replace them It should be understood that there may be examples.

10: front panel
20: rear panel
30,30': Flameproof coating layer
40,40': Flame retardant adhesive layer
50: Honeycomb core
60,60': Surface coating layer

Claims (4)

Panel cutting process for manufacturing fire doors;
A flame-retardant coating layer forming step of applying a flame-retardant coating liquid mixed with paint and insulation on one surface of the cutting panel to be located inside the fire door;
A compression drying process for compressing and drying the flame-retardant coating layer using a heating roller on the cutting panel on which the flame-retardant coating layer is formed;
A flame-retardant adhesive layer forming step of applying a flame-retardant adhesive solution in which a liquid flame-retardant adhesive and an insulating red are mixed on the surface of the compression-dried flame-retardant coating layer of the cutting panel;
After placing the honeycomb core on the top of the flame-retardant adhesive layer, another cutting panel in which the flame-retardant coating layer forming process, the compression drying process, and the flame-retardant adhesive layer forming process are sequentially formed is placed on the top of the honeycomb core. A core fixing step of bonding and fixing the Hanacom core between the pair of cutting panels by the flame-retardant adhesive layer of the cutting panel formed on the upper and lower sides;
A panel finishing step of bending and bonding the ends of each cutting panel to which the honeycomb core is fixed to the inner side;
A method of manufacturing a fire door with improved performance, characterized in that it is completed by sequentially performing a process of forming a surface coating layer in which a paint is applied to the outer surface of the cut panel that has been mutually bonded. delete delete delete

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