Anti-corrosion bottom valve screen net surface treatment method

A surface treatment and anti-corrosion technology, applied to special surfaces, pre-treated surfaces, and devices for coating liquids on surfaces, etc., can solve the problems of restricting the development of pump bottom valves, damage, and poor anti-corrosion performance, and achieve long-term effective screening net, enhance activity, and prevent corrosion by corrosive substances

Inactive Publication Date: 2017-09-22
ANHUI LUYUAN PUMP&VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the screen is divided into two types according to the material, plastic screen and alloy screen. The plastic screen has good anti-corrosion performance, but during its use, due to the excessive pressure of the water flowing into the bottom valve, it often appears Although the screens of some alloy products have excellent mechanical properties and are not easy to cause mechanical damage, their corrosion resistance is poor, which also severely limits the development of the field of pump bottom valves.

Method used

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  • Anti-corrosion bottom valve screen net surface treatment method
  • Anti-corrosion bottom valve screen net surface treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A surface treatment method for a corrosion-resistant bottom valve screen, comprising the following steps:

[0020] (1) Soak the bottom valve screen in the activation solution for 10 minutes, wherein the activation solution is made of the following components by weight: 16 parts of 3,5-dichloro-4-fluorobromobenzene, bromoacetaldehyde acetal 10 parts of diol, 35 parts of isopropanol;

[0021] (2) Immediately spray paint on the activated bottom valve screen, spray two coats of paint on the outer surface of the screen, and one coat of paint on the inner surface, wherein the paint is made of the following components by weight: silicone resin 60 parts, 5 parts of melamine cyanurate, 9 parts of disodium sebacate, 11 parts of silicon micropowder, 17 parts of polymethyl methacrylate, 0.5 parts of triethyl methanephosphonate, 2-fluoro-2-phosphorus 0.1 part of triethyl acyl acetate;

[0022] (3) Put the painted bottom valve screen into the oven, after drying, take it out, and le...

Embodiment 2

[0030] A surface treatment method for a corrosion-resistant bottom valve screen, comprising the following steps:

[0031] (1) Soak the bottom valve screen in the activation solution for 13 minutes, wherein the activation solution is made of the following components in parts by weight: 18 parts of 3,5-dichloro-4-fluorobromobenzene, bromoacetaldehyde acetal 12 parts of diol, 38 parts of isopropanol;

[0032] (2) Immediately spray paint on the activated bottom valve screen, spray two coats of paint on the outer surface of the screen, and one coat of paint on the inner surface, wherein the paint is made of the following components by weight: silicone resin 70 parts, 6 parts of melamine cyanurate, 11 parts of disodium sebacate, 12 parts of silicon micropowder, 19 parts of polymethyl methacrylate, 0.6 parts of triethyl methanephosphonate, 2-fluoro-2-phosphorus 0.2 parts of triethyl acyl acetate;

[0033] (3) Put the painted bottom valve screen into the oven, after drying, take it ...

Embodiment 3

[0041] A surface treatment method for a corrosion-resistant bottom valve screen, comprising the following steps:

[0042] (1) Soak the bottom valve screen in the activation solution for 15 minutes, wherein the activation solution is made of the following components by weight: 20 parts of 3,5-dichloro-4-fluorobromobenzene, bromoacetaldehyde acetal 13 parts of diol, 40 parts of isopropanol;

[0043] (2) Immediately spray paint on the activated bottom valve screen, spray two coats of paint on the outer surface of the screen, and one coat of paint on the inner surface, wherein the paint is made of the following components by weight: silicone resin 80 parts, 7 parts of melamine cyanurate, 13 parts of disodium sebacate, 13 parts of silicon micropowder, 20 parts of polymethyl methacrylate, 0.7 parts of triethyl methanephosphonate, 2-fluoro-2-phosphorus 0.3 parts of triethyl acyl acetate;

[0044] (3) Put the painted bottom valve screen into the oven, after drying, take it out, and ...

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Abstract

The invention discloses a method for surface treatment of a corrosion-resistant bottom valve, which comprises the following steps: (1) soaking the bottom valve screen in an activation solution for 10-15 minutes; Spray paint on the net, spray two coats of paint on the outer surface of the screen, and one coat of paint on the inner surface; (3) Put the painted bottom valve screen in the oven, after drying, take it out, and let it cool down to room temperature naturally , The corrosion-resistant bottom valve screen is completed. By adopting the method of the present invention, the prepared pump bottom valve screen not only has excellent mechanical properties, will not be washed away by high-speed flowing water, but also has excellent corrosion resistance, and can effectively prolong the service life of the bottom valve screen. Greatly improved the quality of the pump bottom valve.

Description

technical field [0001] The invention belongs to the field of pump bottom valve manufacturing, and in particular relates to a surface treatment method for a corrosion-resistant bottom valve screen. Background technique [0002] The pump bottom valve is composed of valve body, valve cover, valve disc, sealing ring and gasket and other components. The valve disc of the pump bottom valve has several types such as single disc, double disc and multi disc. After the pump bottom valve is connected to the pipeline, the liquid medium enters the valve body from the direction of the valve cover, and the pressure of the liquid acts on the valve disc, so that the valve disc is opened to allow the medium to flow through. When the medium pressure in the valve body changes or disappears, the valve The flap closes to prevent media backflow. In order to effectively protect the impeller of the pump body, a screen is often installed at the bottom valve to reduce the inflow of debris. Among the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/02B05D1/18B05D5/00B05D3/02C09D183/04C09D133/12C09D7/12C09D5/08
CPCB05D1/02B05D1/18B05D3/0254B05D5/00C09D5/08C09D183/04
Inventor 凤元军
Owner ANHUI LUYUAN PUMP&VALVE CO LTD
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