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Manufacturing equipment and preparation method of rigid heat-insulating tile body

A thermal insulation tile, rigid technology, applied in textiles and papermaking, inorganic fibers/sheets, etc., can solve the problems of few rigid thermal insulation tile forming process research, rigid thermal insulation tile waste, and poor density uniformity, etc. The effect of good density uniformity, low processing difficulty and low cost

Active Publication Date: 2019-12-10
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current research on rigid thermal insulation tiles mainly lies in the above aspects, and there is little research on the forming process of rigid thermal insulation tiles.
[0004] However, the rigid insulation tiles made by traditional methods have many wastes, difficult processing, high cost, poor density uniformity, and low strength.

Method used

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  • Manufacturing equipment and preparation method of rigid heat-insulating tile body
  • Manufacturing equipment and preparation method of rigid heat-insulating tile body
  • Manufacturing equipment and preparation method of rigid heat-insulating tile body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0069] This embodiment adopts as Figures 1 to 3 The equipment shown is carried out, and the specific process is as follows:

[0070] ① Each pump is preheated in advance and is in a ready state; put deionized water into the water tank; inject slurry into the slurry tank, the composition of the slurry is: 50kg water + 250g chopped quartz fiber + 5g starch + 5g carbonization Boron, where chopped fibers are about 8 mm in length and about 10 microns in diameter; pH of the slurry is adjusted to pH 9 using ammonia; a semi-cylindrical shaped surface filter mold of 400 mm in length and 300 mm in diameter is placed in a suction canister and inject deionized water, so that the liquid level is submerged in the highest point of the special-shaped surface suction filter tooling.

[0071] ②Open the membrane diffuser and let in compressed air to prevent the sedimentation and stratification of fibers in the slurry tank.

[0072] ③ Turn on the pump and pump the slurry into the filter tank. ...

Embodiment 2

[0081] Ceramic fiber rigid insulation tiles were prepared in substantially the same manner as in Example 1, except that chopped quartz fibers were replaced by a fiber mixture consisting of 78% quartz fibers + 22% alumina fibers, and boron nitride was used instead of carbonized Boron, pH adjusted to pH 10 using ammonia.

Embodiment 3

[0083] A ceramic fiber rigid thermal insulation tile was prepared in substantially the same manner as in Example 1, except that the chopped quartz fibers were replaced by a fiber mixture consisting of 85% quartz fibers+15% mullite fibers.

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Abstract

The invention provides a rigid heat insulation tile blank manufacturing device which comprises a water tank for containing water, a slurry tank for containing slurry, a suction filtration tank, a water guide pipe and a slurry guide pipe. The suction filtration tank comprises a bottom plate and a liquid collecting portion, the bottom plate is provided with filter holes, the liquid collecting portion is positioned on the lower portion of the bottom plate and provided with a liquid outlet, the water guide pipe is used for pumping and guiding the water into the slurry tank from the water tank, andthe slurry guide pipe is used for guiding the slurry into the suction filtration tank from the slurry tank. The invention further provides a rigid heat insulation tile blank manufacturing method which is implemented by the manufacturing device. Near-net-size rough blanks with uniform density can be manufactured by the device and the method, and the device and the method have the advantages of less material consumption, fewer waste materials, easiness in machining, low cost, good density uniformity, high strength and the like.

Description

technical field [0001] The invention relates to the technical field of thermal insulation composite materials, in particular to a rigid thermal insulation tile body and a preparation method thereof. Background technique [0002] Due to the advantages of light weight, high temperature resistance, low thermal conductivity and good high temperature stability, ceramic fiber rigid insulation tiles are the earliest thermal protection system with the most flight experience, and they are also the most used thermal protection materials for space shuttles. For future hypersonic vehicles, the temperature on the windward surface of the large area of ​​the fuselage will reach 1400°C or higher, and there is an urgent need for shape-resistant ultra-high temperature and heat-resistant insulation materials. Therefore, at present and in the future, research on thermal insulation tiles is mainly carried out in the following aspects: (1) Rigid thermal insulation tiles can withstand higher tempe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21J3/00D21H13/36
CPCD21H13/36D21J3/00
Inventor 鲁胜刘斌叶冉冉赵英民
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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