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Metallurgical replica material as well as preparation method and replica process thereof

A technology of process and raw materials, applied in the field of preparation method and replica technology, metallographic replica material, can solve problems such as difficulty in metallographic inspection

Active Publication Date: 2021-01-29
国能锅炉压力容器检验有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The solvents acetone and chloroform used in the replica are precursor chemicals, which are controlled by the public security and cannot be purchased from formal channels during the on-site inspection. Because they are liquid and controlled, they cannot be mailed. come with great difficulty

Method used

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  • Metallurgical replica material as well as preparation method and replica process thereof
  • Metallurgical replica material as well as preparation method and replica process thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0039] The preparation method of metallographic replica material of the present invention, comprises the following steps successively:

[0040] The first step is to fully mix the powdered methyl violet with the curing agent, so that the methyl violet is fully dissolved in the curing agent, so as to ensure that the laminating film has a better contrast;

[0041] The second step is to mix the curing agent dissolved in the methyl violet in the first step and the epoxy resin in proportion, and stir it, and let it stand for at least 2 hours to obtain the metallographic replica material.

[0042] combine figure 1 with figure 2 As shown, during the replication process, an appropriate amount of metallographic replica material 2 can be poured directly on the inspection site of the inspected part 1, or an appropriate amount of replica material can be sucked up with a straw and dropped on the inspection site, and the composite material can be completely soaked in a liquid state. The c...

Embodiment 1

[0045] In this embodiment, an amine curing agent such as ethylenediamine is selected as the curing agent.

[0046] The first step: configure the metallographic replica material.

[0047] Metallographic replica materials can only be prepared and used immediately, but the configured replica materials need to be reserved for 2 hours of standing time. First, the powdered methyl violet and the curing agent ethylenediamine are fully mixed to allow the methyl violet to fully Dissolve in the curing agent ethylenediamine to ensure that the film has a good contrast, then mix the curing agent ethylenediamine and epoxy resin in proportion, and stir. The stirring direction is the same direction and cannot be replaced repeatedly Stirring direction, after fully mixing, let it stand for a period of time, usually 2 hours, to eliminate the air bubbles generated during mixing, so as to obtain the replica material. The prepared replica material should be a viscous purple transparent liquid. The ...

Embodiment 2

[0051] In this embodiment, a synthetic resin curing agent such as polyamide resin is selected as the curing agent.

[0052] The first step: configure the metallographic replica material.

[0053] Metallographic replica materials can only be prepared and used immediately, but the configured replica materials need to be reserved for 2 hours of standing time. First, the powdered methyl violet and the curing agent polyamide resin are fully mixed to allow the methyl violet to fully Dissolve in the curing agent polyamide resin to ensure that the lamination film has a good contrast, then mix the curing agent polyamide resin and epoxy resin in proportion, and stir, the stirring direction is the same direction, and cannot be replaced repeatedly Stirring direction, after fully mixing, let it stand for a period of time, usually 2 hours, to eliminate the air bubbles generated during mixing, so as to obtain the replica material. The prepared replica material should be a viscous purple tran...

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Abstract

The invention discloses a metallurgical replica material, a preparation method and a replica process thereof, and relates to the technical field of metallographic examination. The metallurgical replica material comprises the following raw materials: epoxy resin which is used as a composite material main body; a curing agent which is used for curing the epoxy resin; and a coloring agent which is added into the curing agent and is used for increasing the contrast of replica. The preparation method of the metallurgical replica material comprises the following steps: firstly, fully mixing powderymethyl violet with the curing agent to fully dissolve the methyl violet in the curing agent so as to ensure that a replica film has better contrast; and mixing the curing agent dissolved with methyl violet with epoxy resin in proportion, stirring, and standing for at least 2 hours to obtain the metallurgical replica material. The brand-new metallurgical replica material provided by the invention does not need to adopt solvents acetone and trichloromethane used in the prior art, is convenient to manufacture, and can be applied to a metallurgical replica process.

Description

technical field [0001] The invention relates to the technical field of metallographic inspection, in particular to a metallographic replica material, a preparation method and a replica process thereof. Background technique [0002] Metallographic inspection is a widely used material inspection method, which may be used in the production, processing, and use of materials. On-site metallographic inspection generally requires metallographic replicas, using AC paper or plexiglass sheets. The process is as follows: Grinding, polishing, etching, cleaning, and drying the parts that need to be metallographically inspected, and then performing replicating operations. First, use organic solvents such as acetone and chloroform to dissolve part of the AC paper or plexiglass sheet, and then stick it. On the test site, after the solvent evaporates completely, peel off the AC paper or plexiglass sheet to complete the replica operation. [0003] The solvents acetone and chloroform used in ...

Claims

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Application Information

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IPC IPC(8): C08L63/02C08K5/00C08G59/50C08G59/44C08G59/42
CPCC08K5/0041C08G59/5006C08G59/44C08G59/4207C08L63/00
Inventor 代小号王强郝晓军
Owner 国能锅炉压力容器检验有限公司
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