CST-50M Charpy Impact Specimen Gap Projector

Gap Projector

Usage and Characteristics

The impact test has strict requirements on the notch of the impact specimen, and the small change of the notch will cause a large deviation of the test result. In order to ensure the gap of the impacted specimen is qualified, the inspection of the quality of the gap is an important control method. At present, optical projection magnification inspection is the only practical method that can guarantee the quality of the impact of the sample.

CST-50M Charpy projector is a special design and development of our company according to ASTM E23-18 "Standard Test Methods for Notched Bar Impact Testing of Metallic Materials" 8.2.2 and GB/T229-2020. It is a special optical instrument for checking the quality of the notch processing of Charpy V-type and U-type impact specimens.With independent intellectual property rights. It is a special equipment for the physical and chemical laboratories of metallurgy, boiler and pressure vessel, vehicle and shipbuilding and engineering machinery manufacturing and scientific research departments.

This equipment uses the optical projection method to magnify and project the notch contour of the impact sample onto the projection screen, and compare it with the standard pattern of the V-shaped or U-shaped notch of the impact sample on the projection screen to determine whether the notch processing of the tested impact sample is qualified. This equipment only needs power, easy to operate, intuitive to check and contrast, high in efficiency, small in size, easy to move and easy to maintain.

Main technical parameters

1. Magnification: 50X

Objective lens magnification: 2.5X

Projection objective magnification 20X

2. Projection screen diameter: Φ200 mm

3. Workbench size:

Square table (110X125)mm

Round table Φ90 mm

Workbench glass diameter: Φ70 mm

4. Worktable stroke:

Longitudinal ±10 mm

Transverse ±10 mm

Lifting ±12 mm (no scale)

5. The table rotation range: 0 ° -360 ° (no scale)

6. Light source (halogen tungsten lamp): 12V 100W

7. Power: 220V 150W

8. Dimensions (length * width * height): (510 * 220 * 600) mm

9. Weight: about 20kg