Embedded casing pipe, manufacturing method of embedded casing pipe and ALC autoclaved aerated concrete slab

Abstract

The invention relates to the technical field of building wallboards, in particular to an embedded sleeve, a manufacturing method of the embedded sleeve and an ALC autoclaved aerated concrete plank.The embedded sleeve comprises a pipe body formed by rolling a composite material, the composite material comprises a high-temperature-resistant kraft paper layer and a high-temperature-resistant waterproof layer, and the high-temperature-resistant waterproof layer is aluminum foil; the high-temperature-resistant kraft paper layer is arranged between the two high-temperature-resistant waterproof layers and combined with the high-temperature-resistant fireproof layers, and the embedded sleeve made of the composite material has the advantages of being resistant to high temperature and high pressure, low in cost and the like and is suitable for being used in an ALC board. The invention further provides a manufacturing method of the pre-embedded sleeve and an ALC autoclaved aerated concrete slab using the pre-embedded sleeve.

Description

Technical Field

[0001] The invention relates to the technical field of building wall panels, and in particular to a pre-buried sleeve, a method for making the pre-buried sleeve, and an ALC autoclaved aerated concrete board. Background Art

[0002] ALC Autoclaved Lightweight Concrete, also known as ALC board, is a lightweight, high-strength building material widely used in building structures such as walls and floor slabs. In the production process of ALC board, it is usually necessary to embed casing in the board for subsequent installation of pipelines. However, the production of ALC board requires high-temperature and high-pressure steam curing above 200°C. Ordinary plastic casing is easy to melt and deform under high temperature and high pressure. Although steel or iron casing is resistant to high temperature and high pressure, it is expensive and not conducive to large-scale application. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a pre-buried casing which is rolled from a composite material made of a high-temperature resistant kraft paper layer and two high-temperature resistant waterproof layers and has the advantages of low cost and high strength.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a pre-buried casing, including a pipe body rolled from a composite material, the composite material including a high temperature resistant kraft paper layer and a high temperature resistant waterproof layer, the high temperature resistant kraft paper layer is arranged between two high temperature resistant waterproof layers and combined with each high temperature resistant fireproof layer. The composite material made of the high temperature resistant kraft paper layer and the two high temperature resistant waterproof layers can be formed into a pre-buried casing by rolling, has high structural strength, is resistant to high temperature and high pressure, and has low cost, and is suitable for popularization and use.

[0005] As an optional solution, the high temperature resistant waterproof layer is aluminum foil, and two layers of aluminum foil are respectively bonded to the two sides of the high temperature resistant kraft paper layer. The high temperature resistant waterproof layer is aluminum foil, which has good waterproof effect, high temperature and high pressure resistance, and low price.

[0006] As an optional solution, the aluminum foil is bonded to the high temperature resistant kraft paper layer by a high temperature adhesive.

[0007] Based on the same inventive concept, a method for making an embedded sleeve comprises preparing two layers of aluminum foil and a layer of high-temperature resistant kraft paper, sandwiching the high-temperature resistant kraft paper between the two layers of aluminum foil, using a high-temperature adhesive to bond the high-temperature resistant kraft paper and the two layers of aluminum foil to form a composite material, and rolling the composite material into a tube and bonding them to form an embedded sleeve.

[0008] As an optional solution, the thickness of the aluminum foil is 0.1 mm-0.2 mm, and the thickness of the high temperature resistant kraft paper layer is 0.2 mm-0.3 mm.

[0009] As an optional solution, the thickness of the aluminum foil is 0.1 mm and the thickness of the high temperature resistant kraft paper layer is 0.2 mm.

[0010] As an optional solution, the thickness of the aluminum foil is 0.15 mm and the thickness of the high temperature resistant kraft paper layer is 0.25 mm.

[0011] Based on the same inventive concept, the present invention also provides an ALC autoclaved aerated concrete board, comprising the above-mentioned embedded sleeve or the embedded sleeve made according to the above-mentioned method.

[0012] Compared with the prior art, the present invention has the following beneficial effects: the embedded sleeve is rolled from a composite material, the composite material is composited from two layers of aluminum foil and a high-temperature resistant kraft paper layer placed between the two layers of aluminum foil, the embedded sleeve is suitable for the ALC board, can remain stable under high temperature and high pressure environment, and has the advantage of low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the embedded casing; Figure 2 is a schematic diagram of the structure of the composite material; Figure 3 This is a schematic diagram of the structure of the ALC autoclaved aerated concrete slab; In the figure: 1. embedded casing, 10. composite material, 11. high temperature resistant kraft paper layer, 12. high temperature resistant waterproof layer. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] Example 1 See also Figure 1 and Figure 2The embedded casing includes a pipe body rolled from a composite material. The composite material 10 includes a high-temperature resistant kraft paper layer 11 and a high-temperature resistant waterproof layer 12. The high-temperature resistant kraft paper layer 11 is arranged between two high-temperature resistant waterproof layers 12. The high-temperature resistant kraft paper layer 11 is combined with two high-temperature resistant fireproof layers to form the composite material 10. The composite material 10 is rolled into a tube and bonded to form the embedded casing 1.

[0017] The high temperature resistant waterproof layer 12 is preferably aluminum foil, and two layers of aluminum foil are bonded to both sides of the high temperature resistant kraft paper layer 11 by a high temperature adhesive.

[0018] The embedded casing 1 made of a high-temperature resistant kraft paper layer 11 and two layers of aluminum foil has significantly lower material costs compared to traditional iron, steel and other casings, and can remain stable and non-deformed under high temperature and high pressure environments above 200°C, and is suitable for use as a casing in ALC autoclaved aerated concrete panels.

[0019] In some embodiments, in order to improve the structural strength of the embedded sleeve 1, the composite material 10 may also include more than two high-temperature resistant waterproof layers 12, the high-temperature resistant waterproof layers 12 are stacked, and a high-temperature resistant kraft paper layer 11 is arranged between each adjacent two high-temperature resistant waterproof layers 12, and each high-temperature resistant kraft paper layer 11 is bonded to the adjacent high-temperature resistant waterproof layer 12, and multiple high-temperature resistant kraft paper layers 11 and multiple high-temperature resistant waterproof layers 12 form a composite material 10 with greater thickness and higher strength.

[0020] Example 2 See also Figure 1 and Figure 2 , a method for manufacturing a pre-buried casing, wherein the pre-buried casing 1 is a composite material 10 described in Example 1, including two layers of high temperature resistant waterproof layers 12 and a layer of high temperature resistant kraft paper layer 11. For example, the high temperature resistant waterproof layer 12 is aluminum foil: First, two layers of aluminum foil and a layer of high temperature resistant kraft paper are prepared, and the three are stacked and arranged with the high temperature resistant kraft paper located between the two layers of aluminum foil, and the high temperature resistant kraft paper and the two aluminum foils are bonded and connected using a high temperature adhesive to form a composite material 10. Specifically, when making the composite material 10, a layer of aluminum foil is first laid, and a high temperature adhesive is applied on the aluminum foil, and then the high temperature resistant kraft paper is laid on the aluminum foil, and a high temperature adhesive is applied on the high temperature resistant kraft paper, and another layer of aluminum foil is laid on the high temperature resistant kraft paper, and after the high temperature adhesive bonds the high temperature resistant kraft paper and the aluminum foil, the composite material 10 is formed.

[0021] After the composite material 10 is rolled into a cylinder with an inner diameter of 20 mm, the connecting edges are bonded to form the embedded sleeve 1. After the end of the embedded sleeve 1 is trimmed or the embedded sleeve 1 is cut into a required length, it can be put into use.

[0022] The thickness of the aluminum foil is in the range of 0.1mm-0.2mm, and the corresponding thickness of the high temperature resistant kraft paper is in the range of 0.2mm-0.3mm. As one preferred embodiment, the thickness of the aluminum foil is 0.1mm, and the thickness of the high temperature resistant kraft paper layer 11 is 0.2mm. As another preferred embodiment, the thickness of the aluminum foil is 0.15mm, and the thickness of the high temperature resistant kraft paper layer 11 is 0.25mm.

[0023] The embedded sleeve 1 made according to the above method was embedded in the ALC board according to the design requirements. After being cured by high-temperature and high-pressure steam at 200° C. and 1.2 MPa, no deformation was found after testing.

[0024] Example 3 ALC autoclaved aerated concrete board, please refer to Figure 3 , including the embedded sleeve 1 described in Example 1, or including the embedded sleeve 1 made according to the manufacturing method of Example 2. Specifically, it includes a casting block, a sleeve pre-installation hole is provided in the casting block, and the embedded sleeve 1 is installed in the sleeve pre-installation hole.

[0025] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Pre-buried casing, characterized by: It comprises a pipe body formed by rolling a composite material (10), wherein the composite material (10) comprises a high-temperature resistant kraft paper layer (11) and a high-temperature resistant waterproof layer (12), and the high-temperature resistant kraft paper layer (11) is arranged between two high-temperature resistant waterproof layers (12) and is combined with each high-temperature resistant fireproof layer.

2. The embedded sleeve according to claim 1, characterized in that: The high temperature resistant waterproof layer (12) is an aluminum foil, and two layers of aluminum foil are respectively bonded to two sides of the high temperature resistant kraft paper layer (11).

3. The embedded sleeve according to claim 2, characterized in that: The aluminum foil and the high temperature resistant kraft paper layer (11) are bonded by a high temperature adhesive.

4. The method for making the embedded casing is characterized by: Two layers of aluminum foil and a layer of high temperature resistant kraft paper are prepared, the high temperature resistant kraft paper is sandwiched between the two layers of aluminum foil, the high temperature resistant kraft paper and the two layers of aluminum foil are bonded together using a high temperature adhesive to form a composite material (10), and the composite material (10) is rolled into a tube and bonded together to form a pre-buried casing.

5. The method for making the embedded casing according to claim 4, characterized in that: The thickness of the aluminum foil is 0.1 mm to 0.2 mm, and the thickness of the high temperature resistant kraft paper layer (11) is 0.2 mm to 0.3 mm.

6. The method for making the embedded casing according to claim 5, characterized in that: The thickness of the aluminum foil is 0.1 mm, and the thickness of the high temperature resistant kraft paper layer (11) is 0.2 mm.

7. The method for manufacturing the embedded casing according to claim 5, characterized in that: The thickness of the aluminum foil is 0.15 mm, and the thickness of the high temperature resistant kraft paper layer (11) is 0.25 mm. 8.ALC autoclaved aerated concrete board, characterized by: It comprises the embedded sleeve (1) as claimed in any one of claims 1 to 3 or the embedded sleeve (1) made by any one of the methods of claims 4 to 7.

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