The JBW-300B microcomputer screen display semi-automatic impact testing machine is mainly used to test the resistance of metal materials to impact under dynamic loads. It is an essential testing instrument for metallurgical, mechanical manufacturing and other units, as well as an indispensable testing instrument for scientific research units to conduct new material research.

1. JBW-300B microcomputer screen display semi-automatic impact testing machine is a microcomputer screen display semi-automatic impact testing machine, which adopts PC microcomputer control and can achieve microcomputer based operations such as swing, impact, measurement, calculation, screen digital display, and printing. It has high work efficiency and testing accuracy. After impacting the sample, the remaining energy is used to automatically swing and prepare for the next test. The operation is simple and the work efficiency is high. Especially in laboratories that conduct continuous impact tests and in industries such as metallurgy and mechanical manufacturing that conduct a large number of impact tests, its superiority can be better demonstrated. Computers can calculate and display the impact absorption energy, pendulum swing angle, and experimental average value of materials. Remote data transmission can also be achieved according to user needs.
2. The pendulum is designed with a C-shaped body, and the pendulum torque is precise;
3. The impact knife is fixed with screws, making replacement simple and convenient;
4. Equipped with safety protection pins and safety nets;
5. Microcomputer control, complete the entire process of swing taking, impact, automatic swing lifting, and re impact testing according to instructions.
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 Pendulum Impact Test Method for Metal Materials"

Technical specifications of JBW-300B microcomputer screen display semi-automatic impact testing machine:
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 R8mm
8. Thickness of impact knife: 16mm
9. Angle accuracy: ± 0.1 °
10. Sample size: 10 (7.5, 5) × 10 × 55mm
11. Dimensions: 650mm × 1900mm × 2200mm
12. Net weight of testing machine: approximately 650Kg
13. Power supply: AC three-phase 380V ± 10% 50Hz 5A
14. Environmental conditions: There are no corrosive media, no vibration, and no strong electromagnetic field interference in the surrounding environment.

Main configuration:
One 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 insurance institution (installed on the host);
7. A set of protective nets;
8. One support calibrator;
9. One sample centering device;
10. One set of specialized measurement software;
11. One microcomputer and one printer each
12. A set of pendulum disassemblers;
13. Four sets of foundation screws;
14. Adjust four pieces of inclined iron;
15. One Allen wrench;
16. One proximity switch;
4、 Measurement and Control Section Description:
1. Lenovo brand computer (17 inch LCD, 1G memory, 160GB hard drive)
2. HP laser printer
3. The Windows operating system serves as the working platform, with screen display and mouse operation.
4. The software supports multiple pendulums.
5. Record impact strength, impact energy, etc The maximum and minimum mean and standard deviation can also be calculated.
6. Automatic processing of experimental data and automatic measurement of oscillation period
7. All system parameters are open, and user level operators have a comprehensive understanding of the system core.
8. Equipped with perfect data analysis capabilities, suitable for users to perform various complex data analyses.
9. Having a complete file operating system. Test report files, sample files, etc.
10. Store test data in ASC code format, and use any general commercial report or word processing software to perform user side reprocessing on the test data
11. A single computer can meet the measurement and control needs of multiple testing machines by configuring cards such as AD and I/O.
12. Support various commercial general-purpose printers.
13. Factory settings can be stored in file format for easy recovery.
14. System upgrade is easy.
15. The interface of the measurement and control system displays:

The main window (as shown in the figure) is the software operation control center. Supervise the management of experimental results
The testing software is capable of real-time virtual digital display, monitoring energy and angle values, and maintaining the impact energy of a single strike or swing in real time to print the results