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Production process of a new type of anti-corrosion coating for water pipe elbows

An anti-corrosion coating and production process technology, applied in anti-corrosion coatings, coatings and other directions, can solve the problems that anti-corrosion coatings cannot meet long-term anti-corrosion needs, large contact area between sewage and elbows, waste of manpower and material resources, etc., to achieve outstanding acid resistance. , The effect of strong acid or alkali corrosion resistance, not easy to corrode and leak

Active Publication Date: 2018-04-03
RONGCHENG PIPE IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the sewage is domestic wastewater or production wastewater, its chemical properties are corrosive to a certain extent, turbulent flow usually occurs at the elbow, and the elbow is under great pressure, often structurally dredging or buffering the water flow, resulting in sewage and elbow The contact area of ​​the head is large, the time is long, it is easy to corrode and leak, and the elbow is replaced frequently, which not only causes waste of manpower and material resources, but also brings inconvenience to residents' lives
[0003] The anti-corrosion performance of the water pipe elbow is the biggest problem in improving its durability. There are many patents in the prior art that propose some anti-corrosion coatings. However, due to the limitation of the working environment of the water pipe elbow, long-term contact with sewage with acid or alkali , the anti-corrosion coating in the existing technology cannot meet the long-term anti-corrosion requirements

Method used

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  • Production process of a new type of anti-corrosion coating for water pipe elbows

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A new type of production process for anti-corrosion coatings for water pipe elbows, the production process is as follows:

[0041] (1) Organic material handling

[0042] ① Put 32 parts by mass of isocyanate into the reaction kettle, stir at a rate of 170r / min, and gradually add 19 parts by mass of amino resin to obtain a reaction mixture;

[0043] ② Stir the mixed reactants obtained in step (1) ① at a rate of 200r / min, control the reaction temperature at 72-76°C, and react for 3.5 hours to obtain a reaction polymer;

[0044] ③Stir at a rate of 300r / min, gradually add 8 parts by mass of biuret into the reactor, and mix it with the reaction polymer obtained in step (1)②. After adding the biuret, control the temperature to 48 Stir at -53°C for 50min at a rate of 150r / min to obtain an organic coating;

[0045] (2) Inorganic material handling

[0046] ① Grinding zinc oxide particles with 7 parts by mass into zinc oxide fine powder through a grinder;

[0047] 2. Gained zi...

Embodiment 2

[0055] A new type of production process for anti-corrosion coatings for water pipe elbows, the production process is as follows:

[0056] (1) Organic material handling

[0057] ① Put 33 parts by mass of isocyanate into the reaction kettle, stir at a rate of 180r / min, and gradually add 25 parts by mass of amino resin to obtain a reaction mixture;

[0058] ② Stir the mixed reactants obtained in step (1) ① at a rate of 140r / min, control the reaction temperature at 75-79°C, and react for 4.5 hours to obtain a reaction polymer;

[0059] ③Stir at a rate of 320r / min, gradually add 8 parts by mass of biuret into the reactor, and mix it with the reaction polymer obtained in step (1)②. After adding the biuret, control the temperature to 47 Stir at -50°C for 50min at a rate of 190r / min to obtain an organic coating;

[0060] (2) Inorganic material handling

[0061] ① Grinding zinc oxide particles with 6 parts by mass into zinc oxide fine powder through a grinder;

[0062] 2. Gained zi...

Embodiment 3

[0069] A new type of production process for anti-corrosion coatings for water pipe elbows, the production process is as follows:

[0070] (1) Organic material handling

[0071] ① Put 26 parts by mass of isocyanate into the reaction kettle, stir at a rate of 230r / min, and gradually add 32 parts by mass of amino resin to obtain a reaction mixture;

[0072] ② Stir the mixed reactants obtained in step (1) ① at a rate of 210r / min, control the reaction temperature at 73-76°C, and react for 3.5 hours to obtain a reaction polymer;

[0073] ③Stir at a rate of 320r / min, gradually add 7 parts by mass of biuret into the reactor, and mix it with the reaction polymer obtained in step (1)②. After adding the biuret, control the temperature to 43 Stir at -46°C for 45min at a rate of 260r / min to obtain an organic coating;

[0074] (2) Inorganic material handling

[0075] ① Grinding zinc oxide particles with 7 parts by mass into zinc oxide fine powder through a grinder;

[0076] 2. the zinc ...

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Abstract

A production process of a new type of anti-corrosion coating for water pipe elbows. The production process is as follows: (1) Organic material treatment: put isocyanate into a reaction kettle to react with amino resin, and add biuret to obtain an organic coating; (2) Inorganic material Treatment: mix fine zinc oxide powder, graphite powder and nano-silicon oxide evenly, and add them to the modified wet attapulgite to obtain inorganic coatings; (3) Preparation of anti-corrosion coatings: mix inorganic coatings with organic coatings, add Attapulgite and dispersant are used to prepare anti-corrosion coatings, and the anti-corrosion coatings prepared by the invention can effectively ensure that water pipe elbows are not easily corroded for a long time, improve their service life and reduce costs.

Description

technical field [0001] The invention relates to the field of anti-corrosion technology, in particular to a production process of a novel anti-corrosion coating for water pipe elbows. Background technique [0002] The water pipe elbow is used to connect two straight drain pipes to achieve the purpose of turning water flow. Since the sewage is domestic wastewater or production wastewater, its chemical properties are corrosive to a certain extent, turbulent flow usually occurs at the elbow, and the elbow is under great pressure, often structurally dredging or buffering the water flow, resulting in sewage and elbow The contact area of ​​the head is large, the time is long, it is easy to corrode and leak, and the elbow is replaced frequently, which not only causes a waste of manpower and material resources, but also brings inconvenience to the lives of residents. [0003] The anti-corrosion performance of the water pipe elbow is the biggest problem in improving its durability. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/02C09D1/00C09D5/08C08G18/66C08G18/32C08G18/54
Inventor 朱加荣
Owner RONGCHENG PIPE IND
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