Treatment method for improving surface corrosion and wear resistance of pig iron casting

A corrosion-resistant and wear-resistant technology for pig iron castings, applied in liquid cleaning methods, chemical instruments and methods, cleaning methods and utensils, etc., can solve problems such as corrosion and wear, economic losses, etc., to improve corrosion and wear resistance and improve quality , the effect of prolonging the service life

Inactive Publication Date: 2021-02-02
安徽省含山县威建铸造厂(普通合伙)
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, pig iron castings will be accompanied by corrosion and wear due to ch

Method used

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  • Treatment method for improving surface corrosion and wear resistance of pig iron casting

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0040]Example 1

[0041]A treatment method for improving the surface corrosion resistance of pig iron castings includes the following steps:

[0042](1) Mud water soaking treatment:

[0043]Put river mud and pure water in a mixing tank with a weight-to-volume ratio of 1g:20mL. After stirring and mixing, the pig iron castings are immersed in the resulting muddy water. After ultrasonic treatment for 1 hour, the raw iron castings are filtered and the muddy water on the surface of the pig iron castings Clean it and dry it for later use; the number of viable bacteria in the river mud is 3000 CFU / mL; the ultrasonic frequency is controlled to 20kHz during ultrasonic treatment;

[0044](2) Microwave activation treatment:

[0045]Put the pig iron castings obtained after the muddy water immersion treatment in step (1) in a microwave environment for microwave activation treatment, 400W treatment for 20 minutes;

[0046](3) Freezing treatment:

[0047]Take out the pig iron castings after the microwave activation tr...

Example Embodiment

[0052]Example 2

[0053]A treatment method for improving the surface corrosion resistance of pig iron castings includes the following steps:

[0054](1) Mud water soaking treatment:

[0055]Put river mud and pure water in a mixing tank with a weight-to-volume ratio of 1g:25mL. After stirring and mixing, the pig iron castings are immersed in the resulting muddy water. After ultrasonic treatment for 1.5 hours, the raw iron castings are filtered and the surface of the pig iron castings The muddy water is cleaned and dried for later use; the number of viable bacteria in the river mud is 4000CFU / mL; the ultrasonic frequency is controlled to 50kHz during ultrasonic treatment;

[0056](2) Microwave activation treatment:

[0057]Put the pig iron castings obtained after the muddy water immersion treatment in step (1) into a microwave environment for microwave activation treatment, and treatment at 450W for 25 minutes;

[0058](3) Freezing treatment:

[0059]Take out the pig iron castings after the microwave acti...

Example Embodiment

[0064]Example 3

[0065]A treatment method for improving the surface corrosion resistance of pig iron castings includes the following steps:

[0066](1) Mud water soaking treatment:

[0067]Put river mud and pure water in a mixing tank with a weight-to-volume ratio of 1g:30mL. After stirring and mixing, the pig iron castings are immersed in the resulting muddy water. After ultrasonic treatment for 2 hours, the raw iron castings are filtered and the muddy water on the surface of the pig iron castings Clean it and dry it for later use; the number of viable bacteria in the river mud is 5000 CFU / mL; the ultrasonic frequency is controlled to 80kHz during ultrasonic treatment;

[0068](2) Microwave activation treatment:

[0069]Put the pig iron castings obtained after the mud water immersion treatment in step (1) in a microwave environment for microwave activation treatment, 500W treatment for 30 minutes;

[0070](3) Freezing treatment:

[0071]Take out the pig iron castings after the microwave activation tre...

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Abstract

The invention discloses a treatment method for improving the surface corrosion and wear resistance of a pig iron casting, and belongs to the technical field of pig iron casting surface treatment. Thetreatment method comprises the following step (1) of mud water soaking treatment; the step (2) of microwave activation treatment; the step (3) of freezing treatment; the step (4) of dipping treatment;and the step (5) of laser shock wave strengthening treatment. According to the treatment method for improving the surface corrosion and abrasion resistance of the pig iron casting, the pig iron casting treated through the method has high resistance to acid, alkali and salt corrosion, the quality of the pig iron casting is effectively improved, and the service life of the pig iron casting is prolonged.

Description

technical field [0001] The invention belongs to the technical field of surface treatment of pig iron castings, and in particular relates to a treatment method for improving the corrosion and wear resistance of the surface of pig iron castings. Background technique [0002] With the advancement of science and technology and the development of modern industry, the working efficiency of mechanical equipment is constantly improving, and the speed of parts being worn out by friction is getting faster and faster. Therefore, the service life of parts has become one of the important factors affecting the production efficiency of industrial equipment. Wear is one of the main reasons for the failure of mechanical equipment parts. Although material wear rarely causes catastrophic damage, the energy and material consumption caused by it cannot be ignored, because wear not only leads to frequent replacement of parts and reduces productivity, but also It will lead to a significant reducti...

Claims

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Application Information

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IPC IPC(8): C21D10/00B08B3/12C21D6/04
CPCB08B3/12C21D6/04C21D10/005
Inventor 徐正平徐正东
Owner 安徽省含山县威建铸造厂(普通合伙)
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