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1Equipment Name:Microcomputer controlled fully automatic ultra-low temperature impact testing machine
IItype number:JB-W300CDZ
IIISpecifications：
The JBW-300CDZ ultra-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 impact testing machine uses liquid nitrogen refrigeration, with a minimum temperature of -190 ℃ (-190 ℃~-196 ℃ is a special requirement), making it particularly suitable for measuring the impact resistance of metal materials at extremely low temperatures. It is an important testing method for metallurgical, mechanical manufacturing, scientific research and testing units to test materials and research and develop new materials.
2. This machine is a microcomputer screen display fully automatic control, with electrical and mechanical controls for lifting, hanging, feeding, positioning, and impact. A dedicated sample feeding device is used for automatic feeding, with automatic end face positioning of the sample to ensure that the impact time from the sample being taken out of the furnace is not more than 2 seconds, meeting the requirements of the metal low-temperature Charpy impact test method. After the impact of the sample, the remaining energy can be used to automatically swing and prepare for the next test. The microcomputer can calculate and display the material's impact absorption energy, impact toughness, pendulum swing angle, and test average value, and can print the current test data and test average value.
3. The host adopts a double support column, with a spindle simply supported beam and hanging pendulum. The radial load distribution of the bearings is reasonable, especially for high-energy impact machines, which reduces spindle deformation and greatly reduces energy loss caused by bearing friction;
4. Adopting a two-stage standard deceleration motor to lift the hammer, it runs smoothly;
5. The hanging pendulum adopts a buffering device, ensuring a stable hanging pendulum;
6. The three-dimensional design of the pendulum ensures accurate impact center and precise pendulum torque
7. The impact knife is fixed with screws, making replacement simple and convenient
8. The host is equipped with security protection pins and a safety net;
9. 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 Pendulum Impact Test Method for Metals".
fourMain technical indicators:
1. Impact energy: 300J
2. Pre swing angle of pendulum: 150 °
3. Distance from the center of the pendulum axis to the impact point: 800mm
4. Impact speed: 5.4m/s
5. Sample support span: 40mm
6. Jaw corner: R1-1.5mm
7. Impact blade fillet: R2-2.5mm R8mm
8. Thickness of impact knife: 16mm
9. Refrigeration method: liquid nitrogen refrigeration
10. Sample box capacity: 21 pieces
11. Low temperature range: -60 ℃~~-190 ℃
12. Temperature control accuracy: fluctuation ± 1 ℃, gradient 2 ℃
13. Sample size: 10 × 10 × 55mm
14. Dimensions: 1600 mm × 850 mm × 1530 mm
15. Net weight of testing machine: 1500Kg
16. Power supply: AC three-phase 380V ± 10%
17. Environmental conditions: There are no corrosive media, no vibration, and no strong electromagnetic field interference in the surrounding environment.
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