Preparation method of ultra-thin ultra-low dilution rate high-temperature alloy cladding layer for garbage incinerator

Abstract

The invention relates to a preparation method of an ultra-thin and ultra-low dilution rate high-temperature alloy cladding layer for a garbage incinerator, and belongs to the technical field of new material surface protection. The preparation method of the ultra-thin and ultra-low dilution rate high-temperature alloy cladding layer for the garbage incinerator aims at a protection process for preparing the high-temperature alloy cladding layer for preventing high-temperature corrosion of fused salts such as chlorine, sulfur and compounds thereof on a heating surface of the garbage incinerator. The cladding layer has a good anti-corrosion effect on the heating surface of the garbage incinerator, and the service life of the garbage incinerator can be effectively and greatly prolonged; and safe and efficient operation of a garbage incineration power station boiler is guaranteed, environmental protection is achieved, and social harmonious development is promoted.

Description

technical field

[0001] The invention relates to a method for preparing an ultra-thin and ultra-low dilution rate high-temperature alloy cladding layer for a garbage incinerator, aiming at preparing a high-temperature corrosion-resistant high-temperature alloy cladding layer on the heating surface of a garbage incinerator The invention discloses a layer protection process, which belongs to the technical field of new material surface protection. Background technique

[0002] With the development of social economy and the acceleration of urbanization, the global domestic waste production is increasing rapidly, and it is increasing at a rate of 3-5% every year. Therefore, the effective treatment and disposal of municipal solid waste has become a major issue affecting the ecological environment and the national economy and people's livelihood. The country's waste disposal method has gradually changed from landfill to incineration.

[0003] In the garbage incinerator, the most c...

Examples

example 1

[0051] Example 1: An ultra-thin ultra-low dilution superalloy cladding layer for a waste incinerator

[0052] 1. The thickness of the superalloy cladding layer is ≥1.2mm.

[0053] 2. The mass percentage of the main components of the cladding layer: Ni: 58-64%, Cr: 20%-23%, Mo: 8%-10%, Nb: 3.15%-4.15%.

[0054] 3. Dilution rate Fe≤3.0%.

[0055] Using the ultra-thin and ultra-low dilution superalloy cladding layer of the present invention, the appearance and thickness of the superalloy anti-corrosion coating are detected and fed back: the weld seam of the cladding layer is still clear, the thickness reduction is not obvious, and the composition is normal, etc., indicating that Excellent corrosion resistance.

example 2

[0056] Example 2: An ultra-thin ultra-low dilution superalloy cladding layer for a waste incinerator

[0057] 1. The thickness of superalloy cladding layer is ≥2.0mm.

[0058] 2. The mass percentage of the main components of the cladding layer: Ni: 58-64%, Cr: 20%-23%, Mo: 8%-10%, Nb: 3.15%-4.15%.

[0059] 3. Dilution rate Fe≤3.0%.

[0060] Using the ultra-thin and ultra-low dilution rate high-temperature alloy cladding layer of the present invention, the appearance and thickness of the superalloy anti-corrosion coating are detected and fed back: the welding seam of the cladding layer is slightly corroded, and the thickness reduction rate is less than the design requirement. The composition of the layer is normal, indicating that the anti-corrosion performance is good.

technical field

[0001] The invention relates to a method for preparing an ultra-thin and ultra-low dilution rate high-temperature alloy cladding layer for a garbage incinerator, aiming at preparing a high-temperature corrosion-resistant high-temperature alloy cladding layer on the heating surface of a garbage incinerator The invention discloses a layer protection process, which belongs to the technical field of new material surface protection. Background technique

[0002] With the development of social economy and the acceleration of urbanization, the global domestic waste production is increasing rapidly, and it is increasing at a rate of 3-5% every year. Therefore, the effective treatment and disposal of municipal solid waste has become a major issue affecting the ecological environment and the national economy and people's livelihood. The country's waste disposal method has gradually changed from landfill to incineration.

[0003] In the garbage incinerator, the most c...

Examples

example 1

[0051] Example 1: An ultra-thin ultra-low dilution superalloy cladding layer for a waste incinerator

[0052] 1. The thickness of the superalloy cladding layer is ≥1.2mm.

[0053] 2. The mass percentage of the main components of the cladding layer: Ni: 58-64%, Cr: 20%-23%, Mo: 8%-10%, Nb: 3.15%-4.15%.

[0054] 3. Dilution rate Fe≤3.0%.

[0055] Using the ultra-thin and ultra-low dilution superalloy cladding layer of the present invention, the appearance and thickness of the superalloy anti-corrosion coating are detected and fed back: the weld seam of the cladding layer is still clear, the thickness reduction is not obvious, and the composition is normal, etc., indicating that Excellent corrosion resistance.

example 2

[0056] Example 2: An ultra-thin ultra-low dilution superalloy cladding layer for a waste incinerator

[0057] 1. The thickness of superalloy cladding layer is ≥2.0mm.

[0058] 2. The mass percentage of the main components of the cladding layer: Ni: 58-64%, Cr: 20%-23%, Mo: 8%-10%, Nb: 3.15%-4.15%.

[0059] 3. Dilution rate Fe≤3.0%.

[0060] Using the ultra-thin and ultra-low dilution rate high-temperature alloy cladding layer of the present invention, the appearance and thickness of the superalloy anti-corrosion coating are detected and fed back: the welding seam of the cladding layer is slightly corroded, and the thickness reduction rate is less than the design requirement. The composition of the layer is normal, indicating that the anti-corrosion performance is good.

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