Application of metallographic microscope in metal materials and machinery manufacturing industry
The application fields and importance of metallography are mainly reflected in the following aspects
1 Material selection: There is a certain correspondence between the microstructure and performance of the material, based on which the appropriate material can be selected.
2 Check: raw material check and process check
3 Sampling inspection: The product manufacturing process conducts metallographic inspection on semi-finished products to ensure that the microstructure of the product meets the processing requirements of the next process.
4 Process evaluation: Judging and identifying the qualification of the product process.
5 In-service evaluation: Provide basis for the reliability, reliability and in-service life of in-service parts.
6 Failure analysis: To find out the manufacturability and material defects, so as to provide macro and micro analysis basis for the analysis of failure reasons.
7 Research methods: provide an important basis for adjusting the research direction and technology.
metallographic effect
1. Research on steel heat treatment process: The principle of steel heat treatment is based on the phase change of steel during heating and cooling, and metallographic technology is an important experimental method for phase change research.
2. Development of shape memory alloys: shape memory alloys are also discovered through metallographic analysis.
3 Product quality control: every link in the production process, from the acceptance of raw materials, the control of processing technology, to the evaluation of the quality of semi-finished products and finished products, etc.
4 Failure analysis: It is difficult to completely avoid failures in the form of deformation, fracture wear and corrosion during the use of mechanical equipment and parts. Use metallographic inspection to find out the reasons and prevent them.
5 Accident analysis: application and fire accident analysis and proof in the field of fire cause identification, with good repeatability, good comparability and intuitiveness.
Application field
1. Metallographic inspection of ferrous metals
2. Metallographic inspection of non-ferrous metals
3. Metallographic examination of powder metallurgy
4. Tissue identification and evaluation after material surface treatment
Metallographic examination of ferrous metals
1. Metallographic inspection of structural steel
2. Metallographic inspection of tool and die steel
3. Metallographic inspection of bearing steel
4. Metallographic inspection of spring steel
5. Metallographic inspection of stainless steel, heat-resistant steel and superalloy
6. Metallographic inspection of cast steel and cast iron
7. Metallographic inspection of weldments
