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Combined insulating layer and manufacturing method thereof

A thermal insulation layer, combined technology, applied in jet propulsion devices, rocket engine devices, machines/engines, etc., can solve the problems of heavy workload, unguaranteed quality, slow manual patching speed, etc., and save manufacturing time. , avoid internal defects, improve the effect of structural integrity and reliability

Active Publication Date: 2018-11-30
HUBEI SANJIANG AEROSPACE JIANGHE CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Manual placement is slow, the workload is heavy, and the quality cannot be guaranteed

Method used

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  • Combined insulating layer and manufacturing method thereof
  • Combined insulating layer and manufacturing method thereof
  • Combined insulating layer and manufacturing method thereof

Examples

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Embodiment 1

[0031] It is used for the heat insulation layer structure bonded on an engine casing, such as Figure 1-10 As shown, the combined heat insulation layer is a symmetrical structure, including a curved plate unit 1, the two sides of which are connected to the first flat unit 3 through the first transfer unit 2, and the two sides of the first flat unit are connected through the second transfer unit 4. Connect the second flat plate unit 5; the combined heat insulation layer takes the central axis of the curved plate unit as the axis of symmetry, and the two sides are axisymmetric; the thickness of the curved plate unit is greater than that of the first flat plate unit and that of the second flat plate unit thickness.

[0032] Specifically: the thickness of the arc-shaped plate unit is 90 mm, the thickness of the first flat plate unit is 50 mm, and the thickness of the second flat plate unit is 30 mm; the first transfer unit and the second transfer unit are right-angle transfer unit...

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Abstract

The invention discloses a combined heat insulating layer and a manufacturing method thereof, wherein the combined heat insulating layer comprises a plurality of spliced insulating layer units, whereinthe heat insulating layer units are spliced by using tongues and grooves, and an adhesive layer coats on the tongues and grooves; the heat insulating layer unit comprises a flat plate unit, an arc-shaped plate unit and a switching unit for connecting the insulating layer units with different thicknesses. The invention also relates to a manufacturing method of the combined heat insulating layer, which comprises the following steps of: firstly, forming a heat insulating layer unit by using a mould, coating the spliced part of the obtained heat insulating layer unit with adhesive, and finally assembling and curing at normal temperature to obtain the combined heat insulating layer. Compared with the prior art, the method greatly saves the manufacturing time, ensures the compactness of the inner part of the heat insulating layer by molding, and avoids internal defects caused by manual sticking, such as gas clamping, debonding, material shortage and the like, the structural integrity and reliability thereof are improved, and the conversion from manual to semi-automatic can be achieved.

Description

technical field [0001] The invention belongs to the technical field of solid rocket motors, and in particular relates to a combined heat insulation layer and a manufacturing method thereof. Background technique [0002] The heat insulation layer structure is an important part of the solid rocket motor charge combustion chamber, which can prevent the charge combustion chamber shell from losing strength or being burned through due to high temperature under the action of high temperature gas, which has a great impact on the safety and reliability of the engine. plays a very important role. The traditional manufacturing process of the inner heat insulation layer of solid rocket motor adopts the manual patching process, which needs to be pasted piece by piece and layer by layer. For example, a 30mm thick heat insulation layer needs to be obtained by pasting 10 layers of 3mm thick heat insulation sheets, and it takes at least 30 days to prepare the heat insulation layer by using ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02K9/34F02K9/38
CPCF02K9/34F02K9/38
Inventor 邱奇陈永钊刘美珍高运平朱稼麟陈小辕
Owner HUBEI SANJIANG AEROSPACE JIANGHE CHEM TECH
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