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Heat conduction material capable of being tightly compounded with aluminum fin pipe

A thermally conductive material and compact technology, applied in the production field of heating radiators, can solve the problems of affecting the thermal conductivity of materials, reducing the pressure bearing performance of pipes, affecting product quality, etc., to solve the attenuation of thermal conductivity and increase the viscosity and ductility.

Active Publication Date: 2018-06-22
宁波格瑞特暖通科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the radiators used for water-based heating are mostly made of metal materials such as iron, steel, aluminum, copper, etc., which have problems such as easy corrosion, easy scaling, high energy consumption, and large pollution.
Although there are also plastic-aluminum composite radiators on the market, the plastic tube is used as the inner water channel of the radiator, and the aluminum alloy wing tube is used as the heat dissipation terminal part. Although this plastic-aluminum composite radiator solves the problems of pure metal radiators , high pollution problems, but the inner plastic tube and the aluminum alloy wing tube are difficult to be tightly combined, and with the thermal expansion and contraction of the materials in the heating work, the plastic tube and the aluminum alloy wing tube are delaminated, resulting in the radiator The heat dissipation performance is seriously degraded
For example, a plastic pipe disclosed in the existing patent (application number: 201010001190.0) is injection molded, and its length specification is limited by the plastic mold. A riser with a length of more than 1 meter will be bent and deformed after demoulding, resulting in serious wall deviation of the standpipe. , affecting product quality
In the technology disclosed in another patent (application number: 201110047424.X), although pipe extrusion is used, this material contains a large amount of graphite, which will absorb a large amount of water during the granulation process or storage, and cannot be extruded through the pipe. The drying hopper of the machine is dried, and the pipe formed by direct extrusion of such a material will produce a large number of pores, which affects the thermal conductivity of the material on the one hand, and reduces the pressure bearing performance of the pipe on the other hand, which cannot be used for a long time

Method used

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  • Heat conduction material capable of being tightly compounded with aluminum fin pipe
  • Heat conduction material capable of being tightly compounded with aluminum fin pipe
  • Heat conduction material capable of being tightly compounded with aluminum fin pipe

Examples

Experimental program
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Effect test

example 1

[0014] Example 1: 50 parts of polypropylene, 25 parts of graphite, 10 parts of carbon fiber, 1 part of acrylic acid, 0.1 part of dicumyl peroxide, 0.5 part of dimethylacetamide, and 1 part of antioxidant. The raw materials of the above components are put into an internal mixer, and when the kneading temperature is 100-150 degrees, the mixture is put into a twin-screw granulator to prepare pellets. The pellets are fully dehumidified by the high-speed mixer before being put into the pipe extruder to extrude the pipe.

example 2

[0015] Example 2: 52 parts of polypropylene, 32 parts of graphite, 13 parts of carbon fiber, 3 parts of acrylic acid, 0.5 part of dicumyl peroxide, 0.6 part of dimethylacetamide, and 2 parts of antioxidant. The raw materials of the above components are put into an internal mixer, and when the kneading temperature is 100-150 degrees, the mixture is put into a twin-screw granulator to prepare pellets. The pellets are fully dehumidified by the high-speed mixer before being put into the pipe extruder to extrude the pipe. The pipe material has the property of being bonded to the aluminum alloy wing tube, and the inner wall of the aluminum alloy wing tube is heated and bonded to the surface of the tube made of the material of the invention at the same time.

example 3

[0016] Example 3: 56 parts of polypropylene, 25 parts of graphite, 10 parts of carbon fiber, 5 parts of acrylic acid, 1 part of dicumyl peroxide, 1 part of dimethylacetamide, and 2 parts of antioxidant. Put the raw materials of the above components into the internal mixer, and when the mixing reaches 100-150 degrees, stop heating and continue mixing for 10 minutes. 240°C, 200°C, 200°C, 195°C, 195°C, 190°C, 190°C, 185°C, 185°C, 180°C, the temperature of the machine head is controlled at 235-250°C, and the extruded strips are cooled by the water tank. Blow dry and cut into pellets. Before preparing the pipe, the pellets must be stirred and heated to 95-115°C by a high-speed mixer to fully remove moisture. This method solves the problem that the oven hopper of the pipe extruder cannot be dehumidified.

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Abstract

The invention provides a heat conduction material capable of being tightly compounded with an aluminum wing pipe. The heat conduction material is characterized by being prepared from the following ingredients in parts by weight: 50 to 60 parts of polypropylene, 25 to 30 parts of graphite, 10 to 15 parts of carbon fiber, 1 to 10 parts of crylic acid, 0.1 to 5 parts of dicumyl peroxide, 0.5 to 5 parts of dimethylacetamide and 1 to 5 parts of antioxidants.

Description

technical field [0001] The invention relates to the production technical field of heating radiators, in particular to a heat-conducting material capable of being closely combined with aluminum wing tubes. Background technique [0002] At present, the radiators used for water-based heating are mostly made of metal materials such as iron, steel, aluminum, copper, etc., which have problems such as easy corrosion, easy scaling, high energy consumption, and large pollution. Although there are also plastic-aluminum composite radiators on the market, the plastic tube is used as the inner water channel of the radiator, and the aluminum alloy wing tube is used as the heat dissipation terminal part. Although this plastic-aluminum composite radiator solves the problems of pure metal radiators , high pollution problems, but the inner plastic tube and the aluminum alloy wing tube are difficult to be tightly combined, and with the thermal expansion and contraction of the materials in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L51/06C08L23/14C08K13/04C08K7/06C08K3/04C08K5/14C08K5/20F28D21/00C09K5/14
CPCC08L51/06C08L2203/18C08L2207/14C09K5/14F28D21/00F28D2021/0035C08L23/14C08K13/04C08K7/06C08K3/04C08K5/14C08K5/20
Inventor 周士钦周金瑞
Owner 宁波格瑞特暖通科技有限公司