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Composite aluminum pipe G-shaped pipe and machining process thereof

A processing technology, a technology of composite aluminum, applied in the direction of pipeline heating/cooling, pipe/pipe joint/pipe fitting, pipeline protection, etc., can solve the problem of affecting the protective effect of coating layer on metal, etc. The effect of enhancing the binding force

Inactive Publication Date: 2022-03-04
江阴博圣热能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The commonly used protection method is mainly based on the treatment of the coating layer, which is simple and efficient. The commonly used base resins include epoxy resin and silicone resin, but these resins also have some problems, which will also affect the protection of the coating layer on the metal. effect

Method used

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  • Composite aluminum pipe G-shaped pipe and machining process thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0032] Example 1: S1: After mixing 5 parts of tetraethyl orthosilicate and 10 parts of ethanol evenly, add 10 parts of water, use hydrochloric acid solution to adjust the pH value of the solution to 3, react at 30°C for 1 hour, then After continuing to react for 2 hours, mix well with 10 parts of ethanol and 3 parts of silicone monomer, slowly add 10 parts of water, continue to use hydrochloric acid solution to adjust the pH value of the solution to 3, react at 70°C for 4 hours, add 1 part of sodium carbonate to neutralize React, detect the pH value of the solution, when it is greater than 7, filter the solution and distill under reduced pressure, it is a silicone copolymer;

[0033] S2: Dissolve 8 parts of bisphenol A epoxy resin in a mixed solution of 10 parts of xylene, cyclohexanone and n-butanol, add 12 parts of silicone copolymer, mix well, add 0.1 part of organic bismuth, and heat at 80 °C Reaction for 3h, vacuum distillation, is the modified epoxy resin;

[0034] S3: ...

Embodiment 2

[0039]Example 2: S1: After mixing 10 parts of tetraethyl orthosilicate and 15 parts of ethanol evenly, add 15 parts of water, use hydrochloric acid solution to adjust the pH value of the solution to 3, and react at 35°C for 1-2h, then at 50 After continuing to react for 2.5 hours at ℃, mix well with 15 parts of ethanol and 5 parts of organosilicon monomer, slowly add 15 parts of water, continue to use hydrochloric acid solution to adjust the pH value of the solution to 3, react at 75℃ for 5 hours, add 3 parts of carbonic acid Sodium neutralization reaction, detect the pH value of the solution, when it is greater than 7, filter the solution and distill under reduced pressure, it is a silicone copolymer;

[0040] S2: Dissolve 12 parts of bisphenol A epoxy resin in a mixed solution of 20 parts of xylene, cyclohexanone and n-butanol, add 20 parts of silicone copolymer, mix well, add 0.3 parts of organic bismuth, and heat at 85 °C After reacting for 3.5h, under reduced pressure dis...

Embodiment 3

[0046] Example 3: S1: After mixing 15 parts of tetraethyl orthosilicate and 20 parts of ethanol evenly, add 20 parts of water, use hydrochloric acid solution to adjust the pH value of the solution to 3, react at 40°C for 2 hours, and then at 50°C After continuing to react for 3 hours, mix well with 20 parts of ethanol and 8 parts of silicone monomer, slowly add 20 parts of water, continue to use hydrochloric acid solution to adjust the pH value of the solution to 3, react at 80°C for 6 hours, add 5 parts of sodium carbonate to neutralize React, detect the pH value of the solution, when it is greater than 7, filter the solution and distill under reduced pressure, it is a silicone copolymer;

[0047] S2: Dissolve 16 parts of bisphenol A epoxy resin in a mixed solution of 25 parts of xylene, cyclohexanone and n-butanol, add 24 parts of organic silicon copolymer, mix well, add 0.5 parts of organic bismuth, at 80- React at 90°C for 34 hours, and distill under reduced pressure to ob...

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Abstract

The invention discloses a composite aluminum pipe G-shaped pipe and a machining process thereof, the composite aluminum pipe G-shaped pipe comprises a steel pipe, an aluminum pipe and fins, and the steel pipe and the aluminum pipe are combined in a cold drawing mode; the fins are connected with the aluminum pipe through the grooves in the outer portion of the aluminum pipe. A coating layer is arranged outside a G-shaped pipe of the composite aluminum pipe, and the method comprises the following steps that S1, modified epoxy resin, filler, auxiliaries and water are evenly mixed, then a curing agent is added, and slurry is obtained after even mixing; and S2, after the aluminum pipe is compounded on the outer portion of the steel pipe in a cold drawing mode, grooves are formed in the outer portion of the aluminum pipe, the fins are inlaid on the outer portion of the aluminum pipe through the grooves, slurry is sprayed, drying is conducted, a coating layer is formed, and the composite aluminum pipe G-shaped pipe is obtained.The prepared composite aluminum pipe G-shaped pipe has the advantages that the heat exchange effect is good, the cleaning process is reduced, and energy conservation and emission reduction are achieved. And meanwhile, the composite aluminum pipe G-shaped pipe has wear resistance, corrosion resistance and excellent mechanical strength.

Description

technical field [0001] The invention relates to the technical field of composite pipes, in particular to a composite aluminum G-shaped pipe and a processing technology thereof. Background technique [0002] Metal is one of the most important structural materials and is often used in industrial fields. Steel-aluminum composite pipes are widely used in automobiles, electronic power, energy and other fields. During the use of steel-aluminum composite pipes, there are disadvantages such as difficult preparation and low precision. . The existing steel-aluminum composite pipes on the market are formed by rolling aluminum pipes and steel pipes using a three-roll rolling mill, which has the problems of poor heat dissipation and difficult cleaning. [0003] During the use of metal components, metal corrosion will inevitably occur, and metal corrosion will not only cause the loss of resources, but also cause economic losses. The commonly used technical means are mainly to improve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/02C09D183/10C09D5/08C09D7/62F16L58/10F16L57/06F16L53/00
CPCC09D163/00C09D183/10C09D5/08C09D7/62C09D7/70F16L58/1072F16L57/06F16L53/00C08K2003/3009C08K2003/385C08K9/08C08K9/06C08K3/042C08K3/30C08K3/38
Inventor 陆烨星
Owner 江阴博圣热能科技有限公司
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