High-strength high-temperature-resistant heat shrink tube
By combining an outer reinforcing layer and an inner heat insulation layer, the problem of heat shrink tubing damage under high-temperature environments is solved, achieving improved high strength and high-temperature resistance.
Patent Information
- Application Number
- CN202422992755.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Existing heat shrink tubing is easily damaged in high-temperature environments, especially when wrapping high-voltage cables, due to the heat generated during cable operation.
It adopts a heat-shrinkable outer tube and a heat-shrinkable inner tube structure. The outer tube is equipped with an outer reinforcing layer, a perfluoroether rubber layer and a corrosion-resistant layer, while the inner tube is equipped with a heat insulation layer and a high-temperature resistant ceramic layer. The combination of these layers improves the high-temperature resistance and structural strength.
The high-temperature resistance and structural strength of the heat shrink tubing are improved in high-temperature environments, preventing damage and extending its service life.
Smart Images
Figure CN223502514U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat shrink tubing technology, specifically relating to a high-strength, high-temperature resistant heat shrink tubing. Background Technology
[0002] Heat shrink tubing is a specially made polyolefin heat shrink sleeve. It has excellent flame retardant and insulation properties, is very soft and elastic, has a low shrinkage temperature, and shrinks quickly. It can be widely used for wire connection, wire end treatment, solder joint protection, wire harness marking, insulation protection of resistors and capacitors, etc.
[0003] In related technologies, existing heat shrink tubing has a wide range of applications. However, due to different environments or different application methods, the performance requirements for heat shrink tubing vary. Existing heat shrink tubing has certain defects in high temperature resistance and is prone to damage in high-temperature environments. When used to wrap high-voltage cables, it is easily damaged by the heat generated during cable operation. Utility Model Content
[0004] The purpose of this invention is to provide a high-strength, high-temperature resistant heat shrink tubing to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-strength, high-temperature resistant heat shrink tubing, comprising a heat shrinkable outer tube and a heat shrinkable inner tube, wherein the heat shrinkable outer tube is fixedly sleeved on the outside of the heat shrinkable inner tube, an outer reinforcing layer is fixedly connected to the outer surface of the heat shrinkable outer tube, a perfluoroether rubber layer is fixedly connected to the outer surface of the outer reinforcing layer, a corrosion-resistant layer is fixedly connected to the outer surface of the perfluoroether rubber layer, a heat insulation layer is fixedly connected to the inner surface of the heat shrinkable inner tube, a high-temperature resistant ceramic layer is fixedly connected to the inner surface of the heat insulation layer, and an insulating layer is fixedly connected to the inner surface of the high-temperature resistant ceramic layer.
[0006] In a preferred embodiment, a hot melt adhesive layer is filled between the heat-shrinkable outer tube and the heat-shrinkable inner tube.
[0007] In a preferred embodiment, the outer reinforcing layer is woven from carbon fiber material.
[0008] In a preferred embodiment, the corrosion-resistant layer is a polytetrafluoroethylene layer.
[0009] In a preferred embodiment, the insulation layer is a polyurethane foam layer.
[0010] In a preferred embodiment, both the heat-shrinkable outer tube and the heat-shrinkable inner tube are provided with multiple reinforcing ribs inside.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] This high-strength, high-temperature resistant heat shrink tubing improves the high-temperature resistance of the outer tubing through the addition of a perfluoroether rubber layer, and improves the high-temperature resistance of the inner tubing through the addition of a high-temperature resistant ceramic layer, making the heat shrink tubing less prone to damage in high-temperature environments.
[0013] This high-strength, high-temperature resistant heat shrink tubing features an outer reinforcing layer that enhances its structural strength, making it less prone to breakage under stress. The corrosion-resistant layer further improves its corrosion resistance and extends its service life. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the heat-shrinkable outer tube of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the heat-shrinkable inner tube of this utility model.
[0017] In the diagram: 1. Heat-shrinkable outer tube; 11. Outer reinforcing layer; 12. Perfluoroether rubber layer; 13. Corrosion-resistant layer; 2. Heat-shrinkable inner tube; 21. Heat insulation layer; 22. High-temperature resistant ceramic layer; 23. Insulation layer; 3. Hot melt adhesive layer; 4. Reinforcing rib. Detailed Implementation
[0018] The present invention will be further described below with reference to the embodiments.
[0019] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.
[0020] Please see Figure 1-3 This utility model provides a high-strength, high-temperature resistant heat shrink tubing, comprising an outer heat shrink tubing 1 and an inner heat shrink tubing 2. The outer heat shrink tubing 1 is fixedly sleeved on the outside of the inner heat shrink tubing 2. A hot melt adhesive layer 3 is filled between the outer heat shrink tubing 1 and the inner heat shrink tubing 2, allowing the outer heat shrink tubing 1 and the inner heat shrink tubing 2 to be tightly connected together. Multiple reinforcing ribs 4 are provided inside both the outer heat shrink tubing 1 and the inner heat shrink tubing 2, which improves their structural strength and bending resistance.
[0021] An outer reinforcing layer 11 is fixedly connected to the outer surface of the heat shrinkable outer tube 1. The outer reinforcing layer 11 is woven from carbon fiber material. The outer reinforcing layer 11 can improve the structural strength of the heat shrinkable outer tube 1 and make it less prone to damage under stress. A perfluoroether rubber layer 12 is fixedly connected to the outer surface of the outer reinforcing layer 11. The perfluoroether rubber layer 12 can improve the high temperature resistance of the heat shrinkable outer tube 1. A corrosion-resistant layer 13 is fixedly connected to the outer surface of the perfluoroether rubber layer 12. The corrosion-resistant layer 13 is a polytetrafluoroethylene layer. The corrosion-resistant layer 13 can improve the corrosion resistance of the heat shrinkable outer tube 1.
[0022] A heat insulation layer 21 is fixedly connected to the inner surface of the heat shrinkable inner tube 2. The heat insulation layer 21 is a polyurethane foam layer. The heat insulation layer 21 can improve the heat insulation effect of the heat shrinkable inner tube 2. A high temperature resistant ceramic layer 22 is fixedly connected to the inner surface of the heat insulation layer 21. The high temperature resistant ceramic layer 22 can improve the high temperature resistance of the heat shrinkable inner tube 2. An insulation layer 23 is fixedly connected to the inner surface of the high temperature resistant ceramic layer 22. The insulation layer 23 can improve the insulation effect.
[0023] The working principle and usage process of this utility model are as follows: First, by setting the outer reinforcing layer 11, the structural strength of the heat shrinkable outer tube 1 can be improved, making the heat shrinkable outer tube 1 less prone to damage under stress. By setting the perfluoroether rubber layer 12, the high temperature resistance of the heat shrinkable outer tube 1 can be improved. By setting the high temperature resistant ceramic layer 22, the high temperature resistance of the heat shrinkable inner tube 2 can be improved. By setting the corrosion resistant layer 13, the corrosion resistance of the heat shrinkable outer tube 1 can be improved.
[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A high-strength, high-temperature resistant heat shrink tubing, comprising a heat shrinkable outer tubing (1) and a heat shrinkable inner tubing (2), characterized in that: The heat-shrinkable outer tube (1) is fixedly sleeved on the outside of the heat-shrinkable inner tube (2). An outer reinforcing layer (11) is fixedly connected to the outer surface of the heat-shrinkable outer tube (1). A perfluoroether rubber layer (12) is fixedly connected to the outer surface of the outer reinforcing layer (11). A corrosion-resistant layer (13) is fixedly connected to the outer surface of the perfluoroether rubber layer (12). A heat insulation layer (21) is fixedly connected to the inner surface of the heat-shrinkable inner tube (2). A high-temperature resistant ceramic layer (22) is fixedly connected to the inner surface of the heat insulation layer (21). An insulating layer (23) is fixedly connected to the inner surface of the high-temperature resistant ceramic layer (22).
2. The high-strength, high-temperature resistant heat shrink tubing according to claim 1, characterized in that: A hot melt adhesive layer (3) is filled between the heat-shrinkable outer tube (1) and the heat-shrinkable inner tube (2).
3. The high-strength, high-temperature resistant heat shrink tubing according to claim 1, characterized in that: The outer reinforcing layer (11) is woven from carbon fiber material.
4. The high-strength, high-temperature resistant heat shrink tubing according to claim 1, characterized in that: The corrosion-resistant layer (13) is a polytetrafluoroethylene layer.
5. The high-strength, high-temperature resistant heat shrink tubing according to claim 1, characterized in that: The heat insulation layer (21) is a polyurethane foam layer.
6. The high-strength, high-temperature resistant heat shrink tubing according to claim 1, characterized in that: Both the heat-shrinkable outer tube (1) and the heat-shrinkable inner tube (2) are provided with multiple reinforcing ribs (4).