KR920000739B1 - A concertrated material for the glass duct and its manufacturing method - Google Patents

Abstract

The stuff forming plate or tube shape, is used for wrapping glass- wool duct in heating or cooling apparatus. The method comprising flame spraying or centrifugal method, has a first process of spraying phenolic resin reacted with 2-6 % phenol, 90-96 % water, 0.9-3 % ammonium sulfate, 0.3-3 % ammonia on mono-fibric glass wool and hot-compressing and hardening; second process of spraying surface-treating agent mixed with 50-55 % ammonium sulfate, 0.2-0.8 % surfactant,20-30 % inorganic hardening agent, 2-6 % dust-collecting and water-repellent agent, 10-25 % inorganic dyestuff on the first-processed glass-wool and bonding aluminium foil on the other side of the stuff.

Description

Manufacturing method of focusing body for glass surface duct construction

1 is a manufacturing process diagram of the present invention.

2 is another manufacturing process diagram of the present invention.

The present invention relates to a plate- or tubular focusing body manufacturing method for constructing a glass surface duct used as a cooling and heating supply pipe.

Recently, no additional insulation work is required after construction, and ducts made of glass surface that are free from problems such as noise generation or air leakage due to the airflow being transferred have been put into practical use. When the cutting surface is not uniform because the workability of the focusing body is not uniform, and the glass surface focusing body is bent, swelling occurs at the cutting part during the cutting operation to form the recessed portion in the form of “a” or “v”. There is a problem that can not be uniform, there is a closed end in which the air leakage occurs in the joint sleeve shape portion for the coupling between the plate-shaped focusing body and the focusing body or the jointing site for coupling between the tubular focusing body and the focusing body when used after construction. In addition, the glass surface of the focusing body is not sufficiently cured, the fine glass fiber by the transport stream Problems such as fragments scattering have been found.

The object of the present invention is to improve the processability of the focusing body in consideration of the problems of the glass surface duct construction focusing body and to fully harden the surface of the glass surface material does not cause leakage phenomenon in the air flow at the joint portion of the focusing body during use In order to prevent the scattering of glass fibers, the object of the present invention is a phenolic resin based on phenol, amnonia and yuan in monofiber wool obtained by flame spraying or centrifugal manufacturing. After spraying with proper air pressure, resin-treated wool is manufactured, and it is inserted into a hot plate or tubular hot plate and heated and cured to obtain a plate or tubular wool concentrator, and phenolic resin and ammonia on the inner surface during duct construction , Oil, surfactant, inorganic hardener, dust repellent, inorganic dye Thus, in order to lower the increased water content at this time, the surface of the surface-treated focusing material may be hardened by drying in a hot air dryer, and the back surface thereof may be achieved by bonding an aluminum foil having glass yarn or kraft paper attached thereto. When described in detail according to the embodiment as follows.

Example 1

The short-fiber wool is obtained by flame spraying or centrifugal manufacturing, and the phenol resin reacted with 4.4% phenol resin, 94.4% water, 0.9% yuan and 0.3% ammonia is sprayed with air pressure. At this time, when the resin adhesion rate of the wool is less than 10%, the wool concentrator becomes soft and the bonding force between the glass fibers is weakened, so that the sliding phenomenon occurs during cutting work or cutting work, and the workability decreases. If the amount is more than 17%, the wool concentrator becomes too hard, and the thermal conductivity and the non-combustible performance are reduced, so that the resin adhesion rate of the wool is maintained at about 10-17% by adjusting the air pressure and nozzle diameter injecting phenolic resin. The resin-attached wool obtained in this way is concentrated at an appropriate thickness in the collector and becomes a wool concentrator having a specific gravity of 60 kg / m 3 or 48 kg / m 3.

The focusing body thus obtained is placed in a heater having a plate-shaped hot plate made of two upper and lower heating plates or a heater having a tubular hot plate made of two internal and external heat pipes, and heat-cured for 10 minutes. It becomes what has a hardened tubular form. At this time, it is preferable to keep the heating plate of the heater at about 180 ° C-200 ° C. Also, if the uneven type rib is formed at both ends of the condensing body that is formed by forming irregularities on both ends of the upper and lower heating plates of the heater and the inner and outer heat pipes, a large number of concentratings are applied during construction Sieves can be easily combined, and the thickness of the converging body formed into a plate or tubular shape can be adjusted to 20, 25, 50 mm, etc., by adjusting the distance between the upper and lower plates of the heater and the inner and outer heat pipes. It is.

In this way, after the plate or tubular focusing body has been obtained, the surface treatment process should be carried out on the inner surface which is in contact with the transport airflow when it is constructed by duct. For this surface treatment, add ammonia to phenolic resin, mix for about 1 minute, mix it for 3 minutes until it is completely dissolved by adding yuan, and mix it for 10 minutes while sequentially adding surfactant, inorganic hardener, and dust repellent agent. In order to obtain the surface treatment agent by adding an additional inorganic dye and mixing for about 2 minutes, and if the focusing body is plate-shaped, it is transported by the conveyor with the surface that becomes the inner surface of the duct to be the surface, and the air pressure 5kg above. / Cm2 and 5 nozzles to spray the above surface treatment agent so that the surface treatment agent is evenly penetrated into the surface of the focusing body, and in the case of tubular focusing body, the cylindrical porous spray nozzle passes through the inside of the tube of the focusing body to concentrate the surface treatment agent. Make sure to penetrate the inner circumference of the body evenly.

At this time, each component of the surface treatment agent was 50.62% of phenol resin, 2.30% of ammonia water, 0.48% of surfactant, 0.20% of surfactant, 28.10% of inorganic curing agent, 4.4% of dust collecting water repellent, 13.90% of inorganic dye. If the surface resin adhesion rate adhered to the surface is 40% or less, there is a risk of glass fiber being scattered and scattered by the conveying airflow during use, and the workability is low. If the surface resin adhesion rate is 50% or more, the sound absorption rate is lowered and Surface resin adhesion rate was 40% -50% because there is a problem that the glass fiber is bent during bending work for assembly.

In addition, when the glass fiber diameter of the focusing body is 8 µm or more, the thermal conductivity may decrease and the fiber structure and the arrangement state may be poor. Therefore, the glass fiber diameter of the focusing body is preferably 8 µm or less.

The surface-treated focusing body thus obtained has a significantly increased moisture content, so when dried in a transfer hot air dryer maintaining a temperature atmosphere of 140 ° C., the thermal conductivity becomes 0.030 ± 0.003 KCal / mh ° C. and the cutting property, cutting The plate-like or tubular focusing body for glass surface duct construction with good color and sound absorption and clear color was obtained.

If the focusing body obtained in this way is plate-shaped, the horizontal and vertical cuttings are made to the desired standard, and if the focusing body is tubular, it is cut to a predetermined length. Kraft paper, glass yarn, When the thermal insulation film made of aluminum foil with a polyethylene film is bonded with heat or bond, the duct construction focusing body is completed.

Example 2

In this embodiment, in the same manner as in Example 1, by spraying phenolic resin on the short-fiber wool obtained by the flame spraying method or the centrifugal manufacturing method, the resin adhesion rate is about 10-15%, which is 60 kg / m 3 or 48 kg / m 3 Heated and bonded aluminum foil with kraft paper, glass yarn, or polyethylene film on the back or outer surface of the plate or tubular collector obtained by collecting with a bundle of wool having specific gravity and heating by heating in a heater having a plate or tubular heating plate The surface treatment agent was sprayed onto the surface or the inner circumferential surface of the plate-like or tubular concentrator, and in this embodiment, the compounding ratio of the surface treatment agent was 51.20% phenol resin, 2.10% ammonia water, 0.43% fluoride, and surfactant, unlike Example 1. 0.27%, inorganic curing agent 26.40%, dust-repellent water repellent 4.60%, inorganic dye 15.00%, the surface resin adhesion rate at this time is 40-50% When dried in a hot air re-fiber wonder 8μ or less transferred to the treated surface so that the bundling body obtained by drying and cutting into an appropriate size to the finished body for converging duct construction. As in the case of Example 1, the focusing body had a thermal conductivity of 0.030 ± 0.003 KCal / mh ° C., and the cutting, sound absorbing, and cutting properties were all good and the color became clear.

Example 3

In this embodiment, a plate-like or tubular focusing body is manufactured in the same manner as in Examples 1 and 2, except that in the blending ratio of the surface treatment agent, 52.28% of phenol resin, 3.60% of ammonia water, 0.29% of fluoride, and 0.33% of surfactant , 29.00% mineral hardener, 3.50% dust repellent agent, 11.00% inorganic dye. The product has good cutting, sound absorption and cutting property, and thermal conductivity is 0.030 ± 0.003KCal / mh ℃. .

Example 4

In this embodiment, a plate-like or tubular focusing body was prepared in the same manner as in Examples 1 and 2, except that in the mixing ratio of the surface treatment agent, 53.01% of phenol resin, 3.50% of ammonia water, 0.20% of surfactant, 0.49% of surfactant, Inorganic curing agent 29.80%, dust collecting water repellent 3.00%, inorganic dye 10.00%, the cutting, sound absorption, cutting properties are all good, the thermal conductivity is 0.030 ± 0.003KCal / mh ℃, it was possible to obtain a product with a clear color.

Example 5

This embodiment is also prepared in the same manner as in Example 1 and Example 2 in the production of a plate-like or tubular focusing agent in the mixing ratio of the surface treatment agent, phenolic resin 55.00%, ammonia water 3.07%, yuan 0.34%, surfactant 0.35%, inorganic The curing agent was 24.34%, the dust collecting water repellent 4.00%, and the inorganic dye was 12.90%. The thermal conductivity was 0.030 ± 0.003 KCal / mh ° C., and the product was vivid in color and had excellent cutting, sound absorption, and cutting properties.

Comparative Example 1

In this comparative example, a plate-like or tubular focusing body was produced in the same manner as in Examples 1 and 2 of the present invention, but in the blending ratio of the surface treatment agent, 43.70% of phenol resin, 5.00% of ammonia water, 0.40% of yuan, and interface 0.50% of active agent, 40.00% of inorganic hardener, 2.00% of water repellent agent, 8.40% of inorganic dye. Thus, the product obtained in this way has a swelling phenomenon and swelling on the cutting surface, and the color is lightly expressed. The same level as the Examples and the poor cutting property was not uniform cutting surface and sound absorption was good. Therefore, it can be seen that Comparative Example 1 has problems in machinability, cutting property and color.

Comparative Example 2

In this comparative example, a plate-like or tubular focusing body was produced in the same manner as in Examples 1 and 2 of the present invention, but in the blending ratio of the surface treatment agent, 47.00% of phenol resin, 4.70% of ammonia water, 0.50% of yuan, and interface. 0.40% of the active agent, 35.20% of the inorganic hardener, 2.80% of the water repellent agent, and 9.40% of the inorganic dye. As in Comparative Example 1, it was confirmed that there were problems in machinability, cutting property and color.

Comparative Example 3

This comparative example was also prepared in the same manner as in Examples 1 and 2, but in the form of a plate-like or tubular concentrator, in the mixing ratio of the surface treatment agent, 48.40% phenol resin, 2.30% ammonia water, 0.75% fluoride, 0.65% surfactant , 36.90% of an inorganic curing agent, 2.00% of a dust repellent agent, and 9.00% of an inorganic dye. As in Comparative Examples 1 and 2, there were problems in machinability and color, and thermal conductivity, cutting property, and sound absorption were found to be in good condition.

[Comparative Example 4]

In this comparative example, a plate-like or tubular focusing body was produced in the same manner as in Example 1 and Example 2, but in the blending ratio of the surface treatment agent, 57.00% of phenol resin, 1.50% of ammonia water, 0.35% of fluoride, 0.25% of surfactant. , 18.40% mineral hardener, 6.00% dust collector and 16.50% inorganic dye. The cutting performance is not good, but the color is very dark and the thermal conductivity is very hard, so cutting is difficult and sound absorption is poor.

[Comparative Example 5]

In this comparative example, a plate-like or tubular focusing body was produced in the same manner as in Example 1 and Example 2, but in the blending ratio of the surface treatment agent, the phenol resin was 60.00%, ammonia water 2.30%, aviation 0.7%, and surfactant 0.80%. , Inorganic curing agent 15.00%, dust-repellent agent 3.70%, inorganic dyes 17.50% bar, similar to Comparative Example 4 was not good cutting and dark color, poor thermal conductivity, difficult cutting and poor sound absorption.

As can be seen from Examples 1 to 5 and Comparative Examples 1 to 5 according to the present invention, the compounding ratio of the surface treatment agent is 50-55% phenol resin, 1-5% ammonia water, 0.1-0.75 yuan. %, Surfactant 0.2-0.8%, inorganic hardener 20-30%, dust repellent 2-6%, inorganic dye 10-25% was concluded that it is preferable in cutting, color, thermal conductivity, cutting properties, sound absorption.

The plate-like or tubular focusing body according to the present invention obtained in this way has sound absorption and thermal conductivity at the same level as the existing glass surface. Therefore, when a duct is constructed, a separate thermal insulation work is unnecessary, light weight, and incombustible. Not only can it be used, but it is also provided with proper elasticity and breaking property so that it can be processed accurately without cutting or swelling of the fiber tissue during cutting or cutting. There is no possibility of any damage, and the inner surface of the duct is sufficiently hardened by the surface treatment agent, so that a good quality product can be obtained without scattering of the glass surface fragments during the blowing. In addition, the glass surface duct using the focusing body of the present invention has a maximum allowable wind speed of about 15 m / sec, which is the same as the maximum allowable wind speed of iron low speed duct of the international standard.

Claims (4)

In the manufacturing of glass-fiber duct construction focusing body used for air-conditioning and air supply pipe, which is produced by flame spraying or centrifugal manufacturing, 2-6% of phenol in wool, 90-96% of water, and yuan Phenolic resin reacted with 0.9-3% and 0.3-3% ammonia was first sprayed and laminated, and 50-55% phenolic resin and 1-5% aqueous ammonia on one surface of the cluster obtained by heat-pressing and curing for a considerable period of time. It is applied by spraying with a second surface treatment agent composed of 0.1-0.75% of surfactant, 0.2-0.8% of surfactant, 20-30% of mineral hardener, 2-6% of dust repellent agent, and 10-25% of inorganic dye. Method for producing a glass surface duct construction focusing body, characterized in that by adhering a thin aluminum plate. The method according to claim 1, wherein the adhesion ratio of the phenol resin applied by primary injection to the short-fiber wool is 10-17%. The method for manufacturing a glass surface duct construction focusing body according to claim 1, wherein the surface resin adhesion rate of one surface of the focusing body to which the surface treating agent is applied by secondary injection is 40-50%. The method of manufacturing a glass surface duct construction focusing body according to claim 1, wherein the glass fiber diameter of the focusing body is 8 m or less.

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