JPS58142816A - Preparation of pipe route covering construction - Google Patents

Abstract

PURPOSE:To continuously form a pipe route covering construction material which crushes a pipe route by heat for shutting off flames and smoke by such an arrangement wherein the raw material of an expansion layer is caused to adhere to the outer circumference of a tubular element and is dried, and a strip of base material is wound around its outer circumference and the material of protective film is coated and dried. CONSTITUTION:A tubular element 3 is formed by throwing in plastic raw material 2 in the hopper 1A of a protrusion forming machine 1. The tubular element is cooled by a cooling tank 4 and moved in the direction of an arrow by pulling rolls 5, 5, and in the painting machine 6, raw material paste 7 of an expansion layer which expands by heat is discharged from a hopper 6A and caused to adhere to the outer circumference of the tubular element 3. Next, the raw material paste 7A on the outer circumference of the tubular element 2 is dried by heating, ventilation and drying process in a drier 8 and an expansion layer 7 is formed. Next, a strip of base material 9 which substantially does not expand or contract is wound around the outer circumference of the expansion layer 7 and a protective film forming material 14A is coated on the outer circumference of the base material 9 by spray painters 13, 13 in a painting room 12 and it is dried by heating, ventilation and drying process by a drier 5 and a protective film 14 is formed to produce a pipe route covering construction.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a pipe covering structure that crushes the pipe in the event of a fire or the like to prevent fire, fire, etc. from passing through the pipe.

As is well known, buildings are equipped with conduits such as water and sewage pipes, electric wires, telephone wires, and other covered pipes. It is very often the main cause of the spread of smoke books.

The purpose of the present invention is to prevent the spread of fire damage and smoke damage caused by pipes in the event of a fire, etc., and to push the pipes using an expansion layer created by the high heat of a fire. The main idea is to manufacture a pipe covering structure that can be crushed.

The present invention will be explained based on the example shown in (■).
- In Figure 1, the hopper (1) of extrusion or l111 (1)
) From the tube, put in the plastic material (2) such as composted vinyl, polyethylene, polybutyrene, etc., and make a tubular body (SE
E purify. Extruded tubular body (3) #i cooling tank (4)
is cooled by the take-up row A/(5), (5)
Therefore, it moves to the arrow Manryo while being taken over. In step 1, the tubular body (1) is exposed to heat press-fitted from the hopper (6) of the hammer machine (6) in the coating* (6).
Therefore, the material paste (7) for the expansion layer to be applied is applied to the outer periphery. In step (2), dry tension layer (
7). Needless to say, the heating temperature should be lower than the expansion temperature of the expansion layer (T).

In the work 513), the outer circumference r- of the 11 tension 111 (7)
A substantially non-stretchable base material (9) is wrapped. The base material (9
) is shown in Fig. 2. The row j&/ (!I) is taken out from the membrane and wrapped around the outer circumference of the expansion layer (7). In step (4), in the #1 scissor chamber (b), the protective film forming material from the sub-V-tool is applied to the outer part of the base material (9). Engineering 1! In +5), the protective buoy yAzo is formed by heating and ventilation drying in the drying process 11QII. Canada
It goes without saying that the ll' temperature should be lower than the expansion temperature of the expansion 411 layer (7). In this way, a conduit covering structure consisting of the expanded tube (7), the Ik material (9), and the protective fin V gosakaki is formed on the outer periphery of the tubular body (3). As shown in FIG. 3, the pipe covering structure may be formed partially on the tubular body (3).

In the IC# of the present invention, the base material (9) is a metal such as iron, A/4Nium, stainless steel V, etc., or other inorganic material, or fibers of these inorganic materials, paper, brassite, etc. It is made of a material that does not substantially expand or contract, such as a thin plate-like body, sheet-like body, rope-like body, woven fabric, non-woven fabric, etc. of organic matter. It is preferable that minerals should maintain the property of not expanding or contracting,60 and that they do not emit harmful gases due to high heat during a fire.In this respect, inorganic non-combustible materials are preferable to mineral materials. It is desirable to select

In the present invention E#, the raw material paste (7) for the lI#It layer is an organic blowing agent such as hydrazocica-bonamide, azobisisobutyronitriy, etc., silicon aI! wood, boric acid wood, sulfuric acid wood,
Inorganic compounds with water of crystallization such as phosphorus, chromate, lower fatty acids such as formate, acetate, and oxalic acid 1.・Vertical acid salt 1
Heavy acid wax, alum □, the above-mentioned organic blowing agent □ and the solvent □ carboxylic acid are decomposed by heat to produce electric gas water and lower fatty acids.

Mainly consists of substances that release gases such as leg acid gas and organic solvents, and the above substances are combined with a binder to produce vinyl acetate Wm fat, composted vinyl resin, acrylic resin, methacrylic resin, and styrene. mm, polyethylene, bo9boobin, °・fluorine*m,
Aj-rylonitrile-butadiene copolymer, ac-9u nitrile-butadiene-styrene copolymer, styrene-1-tadiene copolymer, styrene-nibutadiene blotter copolymer, vinyl acetate-ethylene copolymer, urethane 111 resin , urea-1! t, 'Medimine resin, phenol p.
Reso M Shin resin, Evokiru resin, polyamide, polyester y, natural rubber, #powder, polyvinyl V-co-J-'IV,
% Sodium alginate, poxymethy A/Se V loin, rosin, natural resins such as petroleum II fat, 1 synthetic resin, semi-synthetic resin Ema A/t) H, aqueous solution, and miso agent solution are mixed. Knead into a paste. I again! If desired, add acid V sium, titanium white, chrome yellow, carbon black, aluminum oxide, gamma siminium hydroxide, magnesium oxide, small magnesium oxide.

Gypsum, silica, alumina, diconia, stellite, sirasuban, vermiculite.

Fillers such as perlite, lime, ill sand, cement, slag, etc. may be added, I! If desired, anti-foaming agents, ultraviolet absorption agents, S refueling agents, and other additives may be added to the pot. The weight ratio of the binder such as a foaming agent and filler to the above-mentioned binder is too:
It ranges from 3 to 100: about 30. The glass transition point of the resin constituting the binder is preferably 30°C.
Further, the temperature is more desirably 15°C or lower. Also l+14
11M117) Ti11 for the first time due to high temperatures during a large fire.
It is necessary to start 4III, for example during summer high m#
! It is hoped that the dose will not cause any mg&. Therefore, the expansion start temperature of the expansion layer (7) should be at least 10G'' (preferably 3 or higher and E1, and approximately 120°C or higher).

As the protective film WJ-Trout, a material is used that is impermeable to gas and moisture, protects the expansion layer (7) from the outside world, and prevents denaturation. Such film forming materials include polyvinyl chloride μ, polyvinylidene vinylide, Atari resin, methacrylic μat resin, vinyl acetate V resin, styrene resin, etc. Examples include emulsions or solutions of synthetic resins such as V-tan resin, epoxy resin, polyester v, ethylene-vinyl acetate copolymer, styne V-butadiene copolymer, and acrylonitrile-butadiene copolymer.

Specific examples preferable as pipe covering structure forming materials are shown above.

Magnetic 1 Plate material: Stainless steel ~ Wire mesh expansion layer Raw material paste: Water glass powder 100 parts by weight Acrylic A
/Resin Emma y Gene 30 (50 fiit% solids content) Water glass liquid 15 parts by weight Protective film forming material: Polyethylene Vene Emy Jiben IL2 Base material Nigarastalis expansion layer raw material paste: Potassium borate 10 G 11 parts by weight Styrene-butadiene Copolymer 15 Latex (40% solids by weight) Power M poxymethyl v- to loin 0.5 water
10 Protective film A/A forming material: Styrene-butadiene copolymer emulsion + vulcanizing agent Na3 / base material near y1nium thin film expansion layer raw material paste): Azobisinbutyronitrile / 115 Electrical Department Vinyl acetate ~ Resin Ema V Di1 30 parts by weight Water glass powder
100 A/lium hydroxide 100 Protective film wA@composition material - Polyfluorinated vinyl V Emma V Dimushroom The pipe covering structure of the present invention is not directly or indirectly exposed to flames in the event of a fire, etc. When exposed to the heat, as shown in FIG. 4, the tube housing (3) softens due to the high flame-like heat, and the 1141 layer expands, but the expansion layer (7) is similar to the base material (9).
Since W- is restricted from expanding in the outer circumferential direction, it expands in the inner circumferential direction, that is, to the extent that it crushes the tubular body (3).

In this way, the part extending from the wall (to) of the tubular body (3) is pushed down and the conduit Fi is blocked.

Since the present invention has the above-mentioned configuration, the bulge 41 that covers the outer periphery of the pipe! When the layer expands due to heat, its expansion in the outer circumferential direction is restricted by the base material, and as a result, it expands in the inner circumferential direction, crushing the pipe, and quickly breaking the pipe, thereby preventing fire and smoke from occurring in the pipe. A conduit covering structure that reliably prevents ＼ and □ when passing through is easily produced.

[Brief explanation of the drawing]

Fig. 1 is a process diagram of an embodiment of the present invention, Fig. 2 is a front view of the process of wrapping a base material, and Fig. 3 is a side view of a tubular body partially forming a conduit covering structure. The figure is a side cross-sectional view showing the state 1 in which the pipe is crushed in the event of fire or the like. In the figure, (3)... Tubular body, (1) Mu... Expansion layer raw material base), (7)... Expansion layer, (9)...
Base material, trout...protective film forming material, support...
Protective Film Patent Applicant Aron Kasei Co., Ltd. 71ff1 Figure: AI2 Figure 7t'4 lSa Procedural Amendment July 26, 1980 Commissioner of the Patent Office Kazuo Wakasugi 1, Indication of Case 1988 Patent 1 No. 026341 2. Title of the invention: Manufacturing method for pipe covering structure 3. Relationship with the case of the person making the amendment Patent applicant Name (Name) (05Q) Aron Kasei Co., Ltd. Representative Director Katsuabe Eguchi 4, Acting representative Person〒467 6 Number of inventions increased by amendment Contents of amendment 1, Pair 1, line 12 [derived from -...] is corrected to ``derived from...''. 2 “Figure 1” is corrected to attachment 01111. that's all

Claims (1)

[Claims] 1. Process III in which the raw material paste of the expansion layer to be 1141 is adhered to the outer periphery of the tubular body by heat. Step 2 of drying the Ml paste adhered to the outer periphery of the tubular body to form a swollen 411I monolayer 2 Step of wrapping a substantially non-stretchable base material around the swollen 41IJll outer scrap λ Applying a protective film forming material to the outer shoulder of the crystal material - Process 114° Drying the forming material applied to the outer periphery of the base material to form a protective film III & Above process @1. ．． 2. ．． ! ,4. ．． Method for manufacturing pipe covering structure OIl consisting of