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MZG-300BD upright metallographicMicroscope is suitable for microscopic observation of transparent or opaque objects. By adopting an excellent infinite optical system and modular functional design concept, the system can be easily upgraded to achieve polarization observation, dark field observation, and other functions. The compact and stable high rigidity body fully reflects the anti vibration requirements of microscopic operations. Ideal design that meets ergonomic requirements, making operation more convenient, comfortable, and spacious. Suitable for microscopic observation of metallographic structure and surface morphology, it is a research field in metallurgy, mineralogy, and precision engineering
The ideal instrument for research.

Technical Specifications
eyepiece	Large field of view WF10X (field of view size Φ 22mm)
Infinite flat field Achromatic objective lens	MZG300BD (Equipped with bright/dark field objective lens)	PL L5X/0.12 BD working distance: 9.7 mm
		PL L10X/0.25 BD working distance: 9.3 mm
		PL L20X/0.40 BD working distance: 7.2 mm
		PL L40X/0.60 BD working distance: 3.0 mm
Eyepiece tube	Tilt at 30 degrees, with an adjustment range of 53-75mm for pupillary distance
focusing system	Coarse micro coaxial focusing with locking and limiting devices, micro grid value: 2 μ m
converter	Five holes (inward ball positioning)
Carrier platform	Double layer mechanical mobile stage, external dimensions: 210mmX140mm, movement range: 63mmX50mm
Falling light illumination system	MZG300		6V30W halogen lamp, adjustable brightness
	MZG300BD		12V50W halogen lamp, adjustable brightness
	MZG320BD		Configure yellow, blue, green color filters and frosted glass sheets
	MZG322		Configure yellow, blue, green, and red color filters
	Built in field of view light barrier, aperture light barrier, color filter conversion device, push-pull analyzer and polarizer
Transmissive lighting system	Abbe spotlight NA.1.25 can be raised and lowered up and down
	Built in field of view light bar in the light collecting mirror
				Configure blue filter and frosted glass sheet
				12V30W halogen lamp, adjustable brightness

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After the results of the metallographic experiment are available, we can analyze the sampling location and grinding direction through the metallographic photos on the experimental report. Some experimental content about cross-section: observing how the microstructure changes from the outer edge of the sample to the center position. Check whether there are defects such as decarburization and oxidation on the surface of the sample. Observation of surface treatment results, such as surface coating, surface quenching, chemical heat treatment, etc. Grain size determination. (5) The distribution of non-metallic inclusions on the cross-section. Some experimental content about longitudinal section: By measuring the degree of grain elongation, the degree of material cold deformation can be analyzed. The quantity, shape, and size of non-metallic inclusions are closely related to the sampling location, so it is important to note that the sampling location can represent the entire material. Identifying the banded structure of steel and the effectiveness of heat treatment in eliminating banded structure. Precautions for using a metallographic microscope: The posture of holding the metallographic microscope must be correct. Hold the mirror arm and the mirror holder with both hands.