1、 Performance Description:

The JBDW-300Y 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 pendulum hammer body type;

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 indicators:

1. Impact energy: 150J, 300J

2. Scale range and division value of the dial

3. Pendulum moment (impact constant):

4. Pre swing angle of pendulum: 150 °

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

6. Impact speed: 5.2m/s

7. Sample support span: 40mm

6. Jaw corner: R1-1.5mm

7. Impact blade fillet: R2-2.5mm (national standard)

8. Impact knife angle: 30 °

9. Thickness of impact knife: 16mm

10. Sample box capacity: 10 pieces

11. Refrigeration method: Compressor refrigeration

12. Low temperature range: Room temperature~-60 ° C/-80 ° C

13. Temperature control accuracy: fluctuation ± 1.5 ° C, gradient 2 ° C

14. Feeding speed: ≤ 2S

15. Sample size: 10 × 10 × 55mm

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

17. Net weight of testing machine: 850Kg

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

19. Environmental conditions: No corrosive media, no vibration, no strong electromagnetic field around

20. The operation mode is controlled by a microcomputer, which displays the results and can be printed.

3、 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. A set of Lenovo microcomputers

15. One HP inkjet printer

16. Four foundation screws

17. Adjust the four pieces of inclined iron

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