Metal collector slab core diversion pipe anticorrosive film and preparation process and film plating process thereof

A technology of heat collectors and diversion tubes, which is applied in the field of anti-corrosion film of metal pipes and its preparation process and coating process, which can solve the problems of low processing cost, increased cost, and difficulty in industrial stainless steel welding.

Inactive Publication Date: 2013-05-08
KUNMING HOLGUIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The plate core of the flat solar collector is composed of upper and lower headers and a chip guide tube with heat-absorbing fins. It is usually made of metal materials, especially the aluminum heat collector plate has high heat collection efficiency, good heat transfer, and low processing cost, so It is widely used, but its anti-corrosion performance is poor. Sodium carbonate and calcium carbonate in water are easy to cause corrosion to the inside of the diversion tube ...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1, prepare 20 parts of vinyl fluoride emulsions according to the weight ratio, 1 part of sodium polyacrylate, 8 parts of shellac, 20 parts of absolute ethanol, 50 parts of water;

[0015] Preparing the anticorrosion film anticorrosion liquid of the metal heat collector plate core diversion tube,

[0016] Step 1, shellac is put into ethanol, and the time is greater than 48 hours, and it is fully dissolved as shellac solvent;

[0017] Step 2: Dissolve sodium polyacrylate in water to obtain a sodium polyacrylate solution. When dissolving, first place the dissolving container filled with water in water heated to 70-80°C, heat the dissolving solvent with water, and pass through the temperature control device , so that the water temperature of the heating and dissolving container is kept at 70-80°C, add sodium polyacrylate to the dissolving container, and when adding, add a small amount and stir evenly, so as not to agglomerate, the whole process of heating, stirri...

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PUM

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Abstract

The invention relates to a technology for corrosion protection of metal pipes, and in particular relates to a metal pipe anticorrosive film and a preparation process and a film plating process thereof. The invention discloses a metal collector slab core diversion pipe anticorrosive film and a preparation process and a film plating process thereof, wherein the anticorrosive film is prepared from the following components in parts by weight after mixing: 15 to 25 parts of polytetrafluoroethylene emulsion, 1 to 2 parts of sodium polyacrylate, 6 to 10 parts of shellac, 15 to 20 parts of absolute ethyl alcohol and 40 to 60 parts of water. The metal collector slab core diversion pipe anticorrosive film has good corrosion resistance, and can protect metal pipes while heat transfer is not influenced.

Description

technical field [0001] The invention relates to the metal pipe anticorrosion technology, in particular to the anticorrosion film of the metal pipe and its preparation process and coating process. Background technique [0002] The plate core of the flat solar collector is composed of upper and lower headers and a chip guide tube with heat-absorbing fins. It is usually made of metal materials, especially the aluminum heat collector plate has high heat collection efficiency, good heat transfer, and low processing cost, so It is widely used, but its anti-corrosion performance is poor. Sodium carbonate and calcium carbonate in water are easy to cause corrosion inside the diversion tube and affect the service life of the collector. In order to prolong the service life, some people choose industrial stainless steel tubes and copper tubes as production materials. This greatly increases the cost, and the welding of industrial stainless steel is difficult, and the copper tube cannot w...

Claims

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Application Information

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IPC IPC(8): C09D127/18C09D133/02C09D193/02C09D5/08
Inventor 李韬文李海婧李俊玲王蕾
Owner KUNMING HOLGUIN TECH
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