JPH0353901A - Manufacture of wooden fireproofing door - Google Patents

Abstract

PURPOSE:To make fireproofing ability perform for the period of 60 minutes or more by decompressing boards within a vacuum chamber, and exhausting bubbles existing in intercellular spaces or gaseous substances which would act to prevent injection, and further, injecting incombustible drugs by compression. CONSTITUTION:Boards 1 with a thickness of 10-12mm, a width of 10-15cm and having an effective dimension in accordance with the dimension of products in its length are decompressed within a vacuum chamber, and then bubbles existing in the intercellular spaces of lumbers or gaseous substances which would act to prevent injection are exhausted, wherein polyphosphoric acid ammonium drugs which are incombustible drugs are injected up to the enter of the boards 1 through pressurization in order to render them flameproofing. And, they are joined to each other in use of a resorcinol adhesive agent and laminated in a staggered form, and further, one layer thereof is made to have a fireproofing ability of about 12 minutes, moreover, the number of lamination is increased by two layers, three layers, four layers, five layers and so on, for manufacturing a wooden laminated board 3 having a fireproofing ability of 60 minutes or more. And, a wooden fireproofing door is manufactured by adhering a decorative frames 4 on the laminated board 3.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention enables wooden doors, which were conventionally excluded as combustible materials, to maintain a fire-retardant performance of 60 minutes or more, allowing them to be used as general construction materials. This invention relates to a method for shearing a wooden fire door that can also be used.

<Explanation> Conventional technology and the problems to be solved by the present invention In the past, it was thought that wood grains were made of burnt S. There have been attempts to produce a combustible effect by looking at each other, but no attempt has been made to produce a combustible effect for a certain period of time. Ta. Especially 6
Trying to avoid the spinning performance of 0 minutes or more was considered to be unethical.

In view of the fact that wood is treated as flammable, the present inventor attempted to make it possible to use water as a building material, by using μJ fire doors, etc., by making wood +4 retain its fire-retardant properties. There's a lot of trouble.

(c) Dingdan lumber, wooden building materials, etc. to solve the problem have traditionally been made from combustible materials, such as materials, to be used as construction materials. Inject appropriate mulberry powder into the sawing board,
This method allows us to utilize the original properties of bamboo without relying on the combination of inorganic or metallic materials with sawn boards that have been treated with chemical injections, something that has not been possible in the past. To create a fire-sealing door that has the ability to not burn through for more than 60 minutes, but does not suffer from deformation or damage that impairs airtightness during combustion, and is also excellent in delivery and decorative properties. The aim is to make this possible.

That is, the present invention has a thickness of 10 to 12IIIn and a width of 10 to 1
5Cffl. ．． The best part is that a grinding plate of an efficient length according to the method of the product is reduced in vacuum chamber 1 to remove air bubbles or gaseous substances that are injected into the cell cavity of the sawing plate. The sawing boards made flame-retardant by injecting ammonium polyphosphate-based non-flammable chemicals under pressure were then cross-cut using resorcinol adhesive, and then stacked in a staggered manner.
Fireproof performance maintained for 0 minutes or more. J: Depressed.

(2) Effects and Examples of the Invention ``Effects'' As described above, the present invention manufactures a non-combustible wooden fire door that has a fire protection performance of 60 minutes or more using wood that is treated as a combustible material. First, a sawn board with a thickness of 10 to 12 cm, a width of 10 to 15 cm, and a length that is determined according to the dimensions of the product is depressurized in a vacuum chamber to create a wooden shrine. Exhaust air bubbles existing in the cell cavity or gaseous substances that may damage the injection, and pressurize;
Ammonium polyphosphate, which is a non-flammable chemical, was injected into the center of the sawn board to make it flame retardant, and then it was cross-shaped using resorcinol adhesive, and then 1,000 r. J
A wooden laminate with a fireproof performance of more than 60 minutes is manufactured by increasing the number of layers, two layers, four layers, and five layers, and a decorative frame is glued to this laminate to create a wooden gA fat fire door. It is manufactured.

The thus manufactured wooden fire door has a fire prevention performance of 60 minutes or more, that is, heat insulation and flame insulation bamboo ability, so it is highly effective as a wooden fire door for construction.

The heating test results of the noodle-combusted wood door manufactured by the method according to the present invention are shown in the table below.

In addition, the enemy sample A was made by laminating 6 sheets of flame-treated sawn boards with a thickness of IQ mm with a resorcinol resin adhesive, and attached flame-retardant treated sawn boards with a thickness of 10III l on both sides. The frame for mounting the specimen was made of steel, and the steel frame was welded to the iron restraining wall, and mortar was filled between the steel frame and the restraining wall to prevent deformation during heating. I took measures to prevent it from happening.

Specimen B was made by laminating five of the above-mentioned sawn plates, and was otherwise the same as Specimen A.

Specimen C is a stack of four sawn boards,
The door frame and restraint frame were made of wood, and the rest were the same as specimens A and B above.

Heating of the specimen was carried out using a large-scale vertical test furnace using propane gas as fuel, in accordance with the fireproof heating standard curve specified in JISA 1311r Fire Protection Test Method for Fire Doors for Buildings. Heating was performed on a reference specimen covered with a calcium silicate plate in advance along a standard fire resistance curve, and the required fuel consumption was then recorded, and the test was conducted while supplying fuel according to the recorded fuel consumption. . The heating time was set until flame appeared on the non-heated side of the specimen.

-5 Specimen ASB is intended for continuous heat/flame insulation bamboo IJ heat for 60 minutes or more, and specimen C is intended for performance for 30 minutes or more. As shown in the table, the times were 73, 66, and 49 minutes, respectively, and it was confirmed that the performance as expected was maintained.

=6- [Example] An example of implementing the method for manufacturing a wooden fire door according to the present invention will be described with reference to the drawings.

In the figure (1) is a sawing board with an appropriate cross section and length.

(2) is a vacuum chamber in which a grinding plate is placed inside and the pressure is reduced to expel air bubbles in the cell cavity or gaseous substances that inhibit injection.
Inject the non-combustible mulberry agent into the core of the sawn board by adding If-. (3) Inject the sawn board (1) impregnated with the non-combustible agent using resorcinol adhesive to the size of the door body. A laminated board made of horizontally laminated sheets.

(4) is a decorative frame made from the laminate board (3) to create a wooden fire door.

(e) Effects of the Invention The method for manufacturing a wooden fire door according to the present invention is as follows: As described above, the thickness is 10 to 12 IIlm, the width is 10 to 150,111 mm, and the length is a sawn board having efficient dimensions according to the manufacturing method of the product. By reducing the pressure in a vacuum chamber, air bubbles existing in the cell cavity or gaseous substances that harm the injection are expelled, and the chemical solution is removed. Since it is completely injected to the core of the sawn board, by making the sawn board horizontally crosswise and laminated to achieve a fireproof performance of 12 minutes, the sawn board can be made into two layers, three layers, three layers, etc. ~ By adding six layers and laminating them, it is possible to fully demonstrate fire protection performance for more than 60 minutes, so it is used in various fields as a highly flame-retardant building block. It is a sign that exerts a great effect.

[Brief explanation of drawings]

Figure 1 is a slope view of the sawing board. Figure 2 is a front view of the vacuum chamber. Figure 3 is a front view of a wooden fire door. FIG. 4 is a sectional view taken along line t--8 shown in FIG. 3. In the figure (1> is a sawing board. (No. 2, vacuum chamber. (3) is a mausoleum board. (4) is a decorative frame. 14-

Claims (1)

[Claims] In a vacuum chamber, air bubbles existing in the cell cavities of the sawing board or gaseous substances that inhibit injection are removed by reducing the pressure, and ammonium polyphosphate nonflammable chemicals are injected under pressure to make it flame retardant. This method of manufacturing a wooden fire door is characterized in that it maintains fire protection performance for 60 minutes or more by slicing sawn boards using resorcinol adhesive, laminating them in a staggered manner, and then applying a decorative frame.