1、 Performance Description

The JBDW-300C low-temperature impact testing machine is used to test the impact resistance performance of metal materials under dynamic loads. It is an essential testing instrument for metallurgical machinery manufacturing and other units, as well as an indispensable testing instrument for research institutions conducting new material research.

1. This machine adopts fully automatic control, and the lifting, hanging, feeding, positioning, impact, and temperature adjustment equipment are all electrically and mechanically controlled. It is equipped with a dedicated feeding device for automatic feeding and automatic section positioning of the sample. The time from the sample being taken out of the furnace to impact shall not exceed 2 seconds, meeting the requirements of the low-temperature Charpy impact test method for metals. After impacting the sample, the remaining energy can be used to automatically swing and prepare for the next test, resulting in high work efficiency;

2. The main body of the testing machine is a split structure, with a cantilever hanging method and a U-shaped pendulum body;

3. The impact knife is fixed with screws, making replacement simple and convenient;

4. Sample simply supported beam type support;

5. The host is equipped with security protection pins and a safety net;

6. The testing machine complies with the national standard GB/T3803-2002 "Inspection of Pendulum Impact Testing Machines" and conducts impact tests on metal materials according to the national standard GB/T229-2007 "Charpy Notch Impact Test Method for Metals".

2、 Main technical parameters:

1. Impact energy: 150J, 300J

2. Pre swing angle of pendulum: 150 °

3. Distance from the center of the pendulum axis to the impact point: 750mm

4. Impact speed: 5.2m/s

5. Sample support span: 40mm

6. Jaw corner: R1-1.5mm

7. Impact blade fillet: R2-2.5mm

8. Impact knife thickness: 16mm

9. Refrigeration method: liquid nitrogen refrigeration

10. Sample box capacity: 6 pieces

11. Low temperature range: 0-196 ℃

12. Temperature control accuracy: fluctuation ± 1.5 ℃, gradient 2 ℃

13. Sample size: 10 × 10 × 55mm

14. Dimensions: 1500 mm × 850 mm × 1340 mm

15. Net weight of testing machine: 650Kg

16. Power supply: AC three-phase 380V ± 10% 50HZ 5A

17. Environmental conditions: There is no corrosive medium, no vibration, and no strong electromagnetic field around

5、 Main equipment configuration:

1. One 300 joule host;

2. One 150J and one 300J pendulum respectively

3. One motor (installed on the main unit);

4. Take a set of pendulum transmission device (installed on the main engine);

5. One set of automatic hanging device (installed on the host);

6. One set of refrigeration and temperature control device;

7. One set of automatic feeding device (installed on the host);

8. One set of safety protection net;

9. One support calibrator;

10. One sample centering device;

11. One disassembler (for swing replacement)

12. One proximity switch;

13. One set of dedicated measurement and control software

14. One branded microcomputer and one printer each

15. Four foundation screws

16. Adjust the four pieces of inclined iron

(The above parameters are for reference only, and detailed parameters are based on real devices)