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A damping heat insulation structure and its preparation method and application

A damping and heat insulation layer technology, applied in applications, other household appliances, protective equipment, etc., can solve problems such as product procurement and use restrictions, protective structure volume and quality, unfavorable product assembly and use, etc. Lightweight, thermal insulation, good insulation effect

Active Publication Date: 2021-02-09
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Such products are basically imported from abroad. On the one hand, in order to achieve impact resistance and heat insulation performance indicators, it is usually necessary to cover a thicker outer layer of material, resulting in a larger overall volume and quality of the protective structure, which is not conducive to the assembly and use of the product. On the other hand, the structure, materials and preparation process of imported products are in a state of technical blockade, and the procurement and use of products are easily restricted, and even affect the development of products in the above fields

Method used

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  • A damping heat insulation structure and its preparation method and application
  • A damping heat insulation structure and its preparation method and application
  • A damping heat insulation structure and its preparation method and application

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preparation example Construction

[0056] A method for preparing a damping heat insulation structure, the steps of the method comprising:

[0057] (1) Mix the raw materials of polyurethane damping layer 1 to obtain polyurethane damping material slurry;

[0058] (2) Install the core components to be protected in the restraint shell 2, pour the polyurethane damping material slurry obtained in step (1) into the cavity between the core components to be protected and the restraint shell 2, and solidify ;

[0059] (3) After the curing in step (2) is completed, the outer surface of the constraining shell 2 is coated with adhesive, the inner surface of the heat insulation layer 3 is coated with adhesive, and then the constrained shell 2 coated with the adhesive on the outer surface is placed into the cavity of the thermal insulation layer 3 coated with adhesive on the inner surface, and cured at room temperature for 3 to 5 days;

[0060] (4) After the curing in step (3) is completed, apply the adhesive on the outer s...

Embodiment 1

[0071] Such as figure 2 Shown, a kind of preparation method of damping heat insulation structure, the step of this method comprises:

[0072] (1) Constraint shell 2 and shell 4 are made of high-strength alloy 0Cr17Ni4Cu4Nb, and the outer surfaces of both shells are blasted with 0.05MPa, 40-mesh sand.

[0073] (2) The preparation method of the polyurethane damping layer 1: including the synthesis of the polyurethane material and the potting and molding of the damping layer. The synthesis of the polyurethane material includes the following components by weight: 40 parts of liquefied MDI, 60 parts of castor oil, 0.05 parts of dibutyltin dilaurate, and a chain extender polyether polyol N210 is added according to the chain extension coefficient of 0.9. The polyurethane material is synthesized by a two-step method. Use tooling to fix the data recording circuit unit in the center of the restraint shell, ensure that there is no contact point between the circuit unit and the restrai...

Embodiment 2

[0086] (1) Constraint shell 2 and shell 4 are made of high-strength alloy 30CrMnSiA, and the outer surfaces of both shells are blasted with 0.05MPa, 40-mesh sand.

[0087] (2) The preparation method of the polyurethane damping layer 1: including the synthesis of the polyurethane material and the potting and molding of the damping layer. The synthesis of the polyurethane material includes the following components by weight: 30 parts of liquefied MDI, 70 parts of castor oil, 0.1 part of dibutyltin oxide, and the chain extender polyether polyol N303 is added according to the chain extension coefficient of 0.95. The polyurethane material is synthesized by a two-step method. Use tooling to fix the data recording circuit unit in the center of the restraint shell, ensure that there is no contact point between the circuit unit and the restraint shell, inject the synthetic polyurethane slurry into the restraint shell, and stop at 1 / 2 of the bound shell. Potting, the whole is transferr...

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Abstract

The invention relates to a damping / heat insulation structure and its preparation method and application, belonging to the technical field of protection of electronic components, in particular to a preparation method of a damping / heat insulation composite functional structure for protecting core components. The damping / insulation structure is used to protect the core components, and the structure includes a polyurethane damping layer, a restraint shell, a heat insulation layer, an outer shell and a heat shield from the inside to the outside. The preparation method includes the synthesis and potting molding of the damping layer material, the processing and molding of the heat insulation tile structure, the preparation of the constrained shell and the shell, the assembly, connection and sealing of the multilayer structure, and the preparation of the heat-resistant coating. The present invention realizes the normal operation of the core components in the environment of short-term high temperature or instantaneous severe shock and vibration through the superposition of multi-layer structures and the sealed connection between the layers. Strong vibration and shock capability.

Description

technical field [0001] The invention relates to a damping heat insulation structure and its preparation method and application, belonging to the technical field of protection of electronic components, in particular to a preparation method of a damping heat insulation composite functional structure for protecting core components. Background technique [0002] In the fields of aerospace, ships, high-speed trains, etc., in order to ensure that electronic components, data recorders and other precision instruments can continue to work normally for a period of time to record information and data in complex working environments or severe emergencies such as high temperature and impact, It is necessary to increase the protective structure on the outside of these core components. [0003] Such products are basically imported from abroad. On the one hand, in order to achieve impact resistance and heat insulation performance indicators, it is usually necessary to cover a thicker outer ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K5/00H05K5/06B32B7/12B32B1/02B32B9/00B32B9/04C08G18/10C08G18/66C08G18/36C08G18/48C08G18/32B32B1/00
CPCH05K5/0091H05K5/06H05K5/064B32B7/12B32B9/005B32B9/04C08G18/10C08G18/6696C08G18/36B32B2255/26B32B2307/304B32B2307/306B32B2307/558B32B2307/73B32B2571/00B32B1/00C08G18/48C08G18/3814
Inventor 许勇唐波周雨琪孙春燕陈风波孙妮娟胡晓燕刘群策赵鑫
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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