High-silica ceramic fiber composite block structure

Abstract

The utility model discloses a high-silica ceramic fiber composite block structure which comprises a ceramic fiber blanket block, and each surface of the ceramic fiber blanket block is respectively coated with high-silica cloth. According to the utility model, the advantages of the two materials are effectively combined, the good heat insulation performance is ensured, and meanwhile, the pollution to use scenes is avoided.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation materials technology, and in particular to a high-silica ceramic fiber composite block structure. Background Technology

[0002] Ceramic fiber blankets are made from mineral materials such as alumina and silica through high-temperature melting, spun fibers, and needle punching, exhibiting excellent thermal insulation properties. Ceramic fiber blankets have a wide range of applications, including being punched into sealing gaskets, spacers for forging workpieces, furnace lining materials, high-temperature insulation in the electronics industry, and fireproofing and insulation in building decoration. They can operate stably at 1400℃ for extended periods. A major drawback of ceramic fiber blankets is the shedding of powder and slag from their surface. The slag shedding rate is >3% / h at 1200℃, significantly limiting their application in high-temperature, high-precision instruments and in home decoration insulation and fireproofing.

[0003] Therefore, through beneficial exploration and research, the applicant has found a solution to the above problems, and the technical solution to be introduced below is the result of this research. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a high-silica ceramic fiber composite block structure that, while ensuring good thermal insulation performance, avoids pollution to the application environment, in order to address the shortcomings of the existing technology.

[0005] The technical problem to be solved by this utility model can be achieved by the following technical solution:

[0006] A high-silica ceramic fiber composite block structure includes a ceramic fiber blanket block, with each surface of the ceramic fiber blanket block covered with a high-silica cloth.

[0007] In a preferred embodiment of the present invention, the ceramic fiber blanket assembly is composed of several ceramic fiber blankets stacked together.

[0008] In a preferred embodiment of this utility model, the ceramic fiber blanket assembly has a rectangular structure.

[0009] In a preferred embodiment of this utility model, the edges between two adjacent pieces of high-silica fabric are sewn together with high-temperature resistant thread, so that the edges between the two adjacent pieces of high-silica fabric are connected.

[0010] In a preferred embodiment of this utility model, the high-temperature resistant suture is a mullite-based ceramic suture.

[0011] In a preferred embodiment of the utility model, the diameter of the mullite-based ceramic wire is 0.1 mm to 0.3 mm.

[0012] Due to the adoption of the above technical solution, the beneficial effects of this utility model are as follows: by covering each surface of the ceramic fiber blanket assembly with high silica cloth, this utility model effectively combines the advantages of the two materials, ensuring good heat insulation performance, while avoiding pollution to the application environment, thus opening up a broad space for the application of ceramic fiber blankets and high silica cloth. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is an exploded view of the present invention. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0017] See Figure 1 and Figure 2 The figure shows a high-silica ceramic fiber composite block structure, including a ceramic fiber blanket block 100. The ceramic fiber blanket block 100 has a rectangular structure and can be composed of several ceramic fiber blankets stacked together. The ceramic fiber blanket block 100 has good thermal insulation performance.

[0018] Each surface of the ceramic fiber blanket assembly 100 is covered with a high-silica fabric 200. The edges of adjacent high-silica fabrics 200 are sewn together with high-temperature resistant sewing thread 300, connecting the edges of adjacent high-silica fabrics 200. This forms a spatial mesh connection between the ceramic fiber blanket assembly 100 and the high-silica fabric 200 through the high-temperature resistant sewing thread 300. In this embodiment, the high-temperature resistant sewing thread 300 is a mullite-based ceramic thread with a diameter of 0.1 mm to 0.3 mm.

[0019] This invention uses mullite-based ceramic thread to sew high-silica cloth 200 onto the surface of ceramic fiber blanket assembly 100, so that the high-silica cloth 200 covers the ceramic fiber blanket assembly 100, preventing the ceramic fiber blanket assembly 100 from shedding powder and residue. At the same time, the mullite-based ceramic thread can adapt to high-temperature environments, ensuring the stability of the overall structure.

[0020] High-silica fabric is a heat-resistant and soft special crystalline fiber fabric with a SiO2 content of over 96%. It possesses excellent heat resistance, can be used continuously at 1000℃, and can withstand instantaneous heat temperatures up to 1400℃. While it is relatively thin, it lacks thermal insulation properties. This invention effectively combines the advantages of both materials, ensuring good thermal insulation performance while avoiding pollution in the application environment.

[0021] This invention has undergone thermal insulation testing for aerospace components. The test results show that under 1500℃ oxyacetylene flame scouring, the back temperature is 210℃ lower than that of a single material, and the particle emission is <5mg / m³. 3 (Meets SEMIF47 cleanroom standards).

[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-silica ceramic fiber composite block structure, comprising ceramic fiber blanket blocks, characterized in that, Each surface of the ceramic fiber blanket assembly is covered with a high-silica cloth.

2. The high-silica ceramic fiber composite block structure as described in claim 1, characterized in that, The ceramic fiber blanket assembly is composed of several ceramic fiber blankets stacked together.

3. The high-silica ceramic fiber composite block structure as described in claim 2, characterized in that, The ceramic fiber blanket assembly has a rectangular structure.

4. The high-silica ceramic fiber composite block structure according to any one of claims 1 to 3, characterized in that, The edges between two adjacent pieces of high-silica fabric are sewn together with high-temperature resistant stitching to connect the edges of the two adjacent pieces of high-silica fabric.

5. The high-silica ceramic fiber composite block structure as described in claim 4, characterized in that, The high-temperature resistant suture is a mullite-based ceramic suture.

6. The high-silica ceramic fiber composite block structure as described in claim 5, characterized in that, The diameter of the mullite-based ceramic wire is 0.1 mm to 0.3 mm.

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