Metallographic Microscope Selection Tips
General in the purchase of metallurgical microscope is mainly to see the use of metallurgical microscope, for example, you just observe the surface of the sample, or to take pictures, the need for bright and dark field of view, do not want to do compositional analysis, etc., in addition to the public also want to see how much of your company's budget, in a limited budget to buy a cost-effective * high performance microscope, that's really real! Imported metallurgical microscope quality and effect is a little better than the domestic, but the price will be much more expensive. Mainly depends on your budget is not big, if the budget is not enough, domestic metallurgical microscope can also be considered, and now the domestic microscope in the effect and quality has really improved greatly, you can rest assured that the use of. Introduce the following kinds of performance according to the brand can be divided into a variety of grades to choose from.
1. Imported metallographic microscopes: these microscopes are characterised by: optical system using infinity, can provide bright field, dark field, transmission, reflection, DIC and other observation methods, high resolution lens, the use of a long period of time, but the price is higher.
2. Domestic orthogonal metallographic microscope: this microscope is suitable for general opaque objects, magnification requirements in more than 100X, 1000X below the use of customers, only the bright field, lens resolution is low, but the cost is very high.
3. Domestic inverted metallographic microscope: the characteristics of this microscope and domestic orthogonal basically the same, but the lens is below, the carrier stage is larger, no working distance requirements, more suitable for the lower price, but look at the larger samples of customers. In addition, the
Metallographic microscope is a high-value, high-precision optical instrument, its core part is the optical imaging system, the quality of the product is related to the imaging effect and the accuracy of the analysis and judgement. When choosing metallographic microscope, we should pay attention to the following two points:
1. In terms of imaging quality, four basic conditions should be met at the same time. Metallographic microscope is the use of optical imaging principles to obtain images of metal microstructure (i.e., metallographic profile), and then qualitative and quantitative analysis of the metallographic profile, the quality of the imaging is a measure of the quality of the metallographic microscope is the primary indicator of the quality of the good or bad. To obtain a clear image must meet the four basic conditions of high contrast, high brightness, good colour reproduction and high resolution.
The first three conditions are the user selection * easy to ignore, the user must not blindly pursue the resolution and ignore the other three aspects, only so as to achieve value for money, make the best use of it.
2. In the use of metallurgical microscope to consider the continued stability of mechanical properties. In addition to imaging quality, should also take into account the instrument in normal use of long-term stability to maintain * good working condition, we call the mechanical properties of the continued stability.
Metallographic microscope is a high-value, high-precision optical instruments, its service life of up to 30 years or more, the user in the purchase of the manufacturer should also be examined in the manufacture of the material selected, manufacturing precision, mechanical design of the scientific and rationality. The above two necessary conditions from a practical point of view on the manufacturer in the manufacture of more clear requirements, the user should also follow the above principles to buy affordable metallurgical microscope.
