I. Applications: 

4XB binocular-type inverted metallurgical microscope is used for the identification and analysis of various metals and alloys of the organizational structure, the general microstructure of the research work for the material after heat treatment. Microscope imaging is clear, of broad vision; the overall design is in line with the man-machine functions, fit to being operated for a long time. Can be widely used in factories or laboratories for the identification of casting quality. Raw material inspection or the treated material microstructure research and analysis work. This is an inverted optical microscope, because the surface of the specimen was observed coincide with the table surface, so it has nothing to do with the sample height, the use of convenience, the apparatus of compact structure, elegant appearance, apparatus base supporting the larger, curved arm robust, low center of gravity so that the equipment placed smooth and reliable, because of eyepiece with the support surface is tilted 45 degrees, so that the observation of comfort.   

II. Specification:

2. The main technical indicators of apparatus

2.1. Eyepiece

2.2. Objective

2.3. The total optical magnification: 100X-1250X 
2.4. Mechanical tube length: 160 mm 
2.5. Rough focusing fretting institutions: Focus Range: 7 mm 
                    Lattice-valued scale: 0.002 mm 
2.6. Rough dynamic focusing range: 7 mm 
2.7. Machinery table: 75 * 50 mm 
2.8. Lighting bulb: 6v 12w bromine tungsten lamp 
2.9. Containing object (diameter): 10,20,42 
2.10. Instrument Weight: 5 kg 
2.11. Packing box size: 360 * 246 * 360 millimeters 

III. The complete sets of equipment:

3.1. The main microscope:             one 
3.2. Eyepiece 10X, 12.5X:           per two 
3.3. objective lens 10X, 40X (flat-field), 100 (oil):  per one  
3.4. binocular tub:                 one  
3.5. 10 X eyepiece micrometer :       one 
3.6. micrometer-foot (0.01) :         one 
3.7. contents pressure spring:         one
3.8. slide φ10, φ20, φ42 :             per one 
3.9. filter (yellow, green, gray and frosted glass):per one  
3.10. fir oil :                       one bottle

3.11. light bulb (bromine tungsten lamp) (standby): two 
3.12. fuse:                          one