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Name：Automatic Feeding charpy pendulum impact tester for metal
Model：
Description：The microcomputer-controlled automatic feeding charpy pendulum impact tester for metal is a new type of impact testing machine introduced by our company first in China. After continuous technological upgrading and improvement in recent years, the product has reached the level of domestic advanced technology. The automatic feeding charpy pendulum impact testing machine for metal is also exported to Australia, India, Malaysia, Turkey, Brazil and other countries, and won the praise of the majority of users at home and abroad.
Automatic Feeding charpy pendulum impact tester for metal Detailed information：
Automatic Feeding charpy pendulum impact tester for metal
一、Project Description：
The microcomputer-controlled automatic feeding charpy pendulum impact tester for metal is a new type of impact testing machine introduced by our company first in China. After continuous technological upgrading and improvement in recent years, the product has reached the level of domestic advanced technology. The automatic feeding charpy pendulum impact testing machine for metal is also exported to Australia, India, Malaysia, Turkey, Brazil and other countries, and won the praise of the majority of users at home and abroad.
二、Application Areas：
The automatic feeding charpy pendulum impact tester for metal is suitable for measuring the impact toughness value of metal materials and the impact resistance of metal materials under dynamic load in various fields such as mechanical metallurgy, aerospace, universities, research institutes and other fields.
三、Standards：
GB/T3038-2002 Inspection of pendulum impact tester
GB/T229-2007 «Metal Charpy notched impact test method»
JJG145-82 Pendulum Impact Tester
If you change the structure and replace the relevant parts, you can meet the requirements of the American Standard, European Standard ASTM E23, EN 10045, ISO 148, ISO 83 and other international relevant standards.
四、Main features of equipment
The automatic feeding charpy pendulum impact testing machine for metal adopts German Siemens PLC as the lower machine control, the brand computer as the upper computer control, the upper computer program adopts VB programming, RS232 communication method, completes the data exchange and command transmission of the upper and lower position machine, makes full use of the powerful function of the PC machine to process the data, Report processing and so on. The inner-control high-precision rotary encoder was used to obtain the real-time position of the pendulum, and the impact absorption work was obtained. With system reliability, stability, data accuracy and so on.
Microcomputer controlled automatic feeding charpy pendulum impact testing machine for metal is composed of upper and lower two-level control system of PLC and industrial PLC programmable controller. The upper computer mainly completes the full automation control, data processing, data management, data printing of the test process, and the lower computer is in accordance with the instructions of the upper computer. Complete the whole process of oscillating, impacting, automatic swinging and re-strike. After impacting the sample, the PLC programmable controller can transfer the collected impact energy test data to the microcomputer through the RS-232 interface. The test software can automatically save the test data in the database and import the test report into the database. Test report template (Excel format), can be read at any time, print out the test report.
2、Advanced control theory
2.1 This Computer controlled automatic feeding charpy impact testing machine for metal adopts PLC programmable logic controller produced by Germany Siemens Company to realize the full automation control of taking pendulum, impact, automatic swing and re-strike for multiple tests during impact test, and can perform data processing and data printing functions.
2.2Test data can be automatically obtained after impacting the specimen. Use Siemens PLC (or use the high-precision PCI bus control card) to collect data and control the pendulum motion to completely avoid the interference often caused by the SCM control system. Ensure that every data collected is absolutely correct. Each action is precisely controlled. . Prevent damage to the equipment due to inaccurate control due to interference (especially damage to the dog clutch).
2.3 The automatic feeding charpy impact testing machine for metal has the advantages of simple operation, high reliability, strong anti-interference ability, versatility, adaptability, expansibility, and small maintenance workload, and has high work efficiency. The superiority of the steel and iron manufacturers, machinery factories, and scientific research institutes that continuously perform impact tests can be better reflected.
2.4The data acquisition system has a high resolution. With an angular resolution of 0.1 degrees, the accuracy is about 10 times higher than that of a disc-type pendulum, which ensures measurement accuracy.
The main frame base and column are cast, the stiffness of the main frame is greatly improved, greatly improving the stability of the test; the pendulum shaft is supported by a simple beam method, and the radial load distribution is reasonable, which greatly reduces the energy loss caused by bearing friction. The pendulum impact absorption work is less than 0.3%. Adopting a single standard deceleration motor lifter will greatly reduce the complexity of the lifter system, avoiding the problems of the assembly and use of the deceleration link in the past; the suspension device is spring buffered and has a small sound, which makes hanging stable.
The pendulum square pendulum body design adopts 3-dimensional software design analysis to ensure accurate strike center and accurate pendulum torque, which fundamentally ensures the accuracy of test data.
Built-in national standard energy loss correction program, so that each test results are corrected according to the standard requirements, the test results more accurate. And has the equipment calibration function.
The main electrical components of the control circuit are produced by well-known foreign or Sino-foreign joint ventures to ensure the reliability and stability of the equipment.
The device not only designs a safety protection pin protection device in the control circuit, but also is equipped with a fully enclosed protective cover, which completely protects the personal safety. It is safer and more reliable to use, and the appearance is elegant and generous.
The overall equipment is made of high-grade automotive special paint, with a well-designed color registration scheme. The overall appearance of the equipment is elegant and coordinated with the overall good working environment of the quality inspection department.
一、Main technical specifications of automatic feeding charpy pendulum impact tester for metal:
1.Impact energy: 500J 300J
2.Dial scale range and division value:
Energy range 0-500J 0-300J
3. Pendulum torque: 0-500J M=267.9492N.m
0-250J M=133.9746N.m
4. Pendulum pre-angle: 150°
5.Swivel axis rotation center to impact point (sample center) Distance: 800mm
6. Impact speed: 5.4m/s
7. Sample holder span: 40mm
8. Support jaw fillet: R（1.0～1.5）mm (1mm for special order)
9.Blade radius of curvature: R（2.0～2.5）mm (8mm for special order)
10. Specimen bearing support surface inclination:11°
11. Impact blade angle: 30°
12. Impact blade thickness: 16mm
13. Measuring angle range: 0-360°
14. Angle resolution: ≤0.06°
15. Specimen specification: 10×10（7.5或5）×55 mm
16. Sample box capacity: ten
17.Refrigeration method: Compressor refrigeration
18. Low temperature range: -40℃～-196℃，(liquid nitrogen purity is above 99.999%)
19.Temperature control accuracy: Fluctuation ±0.5°C, gradient 2°C
20.Digital display timer: 1 minute - 9999 minutes, resolution 1 point
21. Cooling medium: Liquid nitrogen
22. Feed speed: ≤4S
23.Host Dimensions (Length × Width × Height): （2230×1510×1480）mm
24. Host weight: 740Kg
25.Power supply： Three-phase four-wire system 380V 50Hz 2.9KW
26. Working conditions of automatic feeding charpy impact testing machine for metal:
1.Room temperature 20 °C ± 5 °C range;
2.Relative humidity is not more than 85%;
3.No corrosive medium around, no vibration, no strong electromagnetic interference in the environment;
4.Installed on a concrete foundation with a thickness of not less than 200mm or fixed on a foundation of more than 1400Kg;
5.The base level of the mounting base is adjusted to 2/1000.
二、Structure Introduction of automatic feeding charpy impact tester for metal:
The main components of automatic feeding charpy impact tester for metal are:
Host, cryogenic equipment, feeding mechanism, positioning mechanism, electric control box, microcomputer and so on.
1. Host: It is composed of a fuselage, a transmission mechanism, a hanging-off mechanism, an indicating mechanism, a pendulum, and an automatic yaw signal device.
After pressing the “take the pendulum” button, the pendulum is lifted and the safety pin is extended. Press the "Automatic Feeding" button, the tester will realize: Sample delivery → Positioning → Clamping → Sample is in place, then press the “Retreat” button, and then press “Shock” to perform an impact test. After breaking the sample, the pendulum The automatic pendulum hangs and the insurance pin is automatically extended to prepare for the next impact test.
The function of the indicating mechanism is to display the absorbed work of the sample during the test, which consists of a dial, a pointer, and a dialing pin. The automatic feeding charpy impact tester for metal is controlled by a microcomputer and contains two sets of reading systems. The test results are displayed on the computer at the same time.
Pendulum is composed of pendulum, blade, pendulum, connector, plug, hook and other parts. To facilitate the user to replace the pendulum with different energy levels, a detacher is included.
2. Cryogenic device: mainly composed of two parts of the refrigeration system and the cryogenic tank.
After turning on the power supply and cooling switch, the high temperature compressor starts to work. When the low temperature compressor start condition is reached (about 5 minutes), the low temperature compressor will start automatically and the refrigeration system will enter the official cooling state. The refrigeration compressor works continuously. When the temperature in the tank approaches the set temperature, the heating device in the cooling tank begins to provide heat according to the PID adjustment method to balance the excess cooling produced by the refrigeration system so as to achieve the purpose of constant temperature. Stirring allows the medium in the cooling tank to circulate continuously so that the temperature in the tank is uniform.
3. Feeding mechanism:
After the sample is cooled to the desired temperature in a cryogenic apparatus, the mechanism can quickly deliver the sample to the jaw support surface. Adjust the position of the switch impact block to adjust the position and stroke length of the feed rod.
4. Positioning mechanism:
In the impact test, the sample must be close to the side of the jaw so that the notch of the sample is correctly centered on the axis of the pendulum. Only in this way can the accuracy of the test result be ensured. This machine uses the positioning mechanism to align the sample by means of positioning the end face.
5. Electrical Control System:
The electrical control system of the machine is a microprocessor control system independently developed by our company.
三、Main configurations of low temperature pendulum impact tester for metal:
1.500J host one
2.300J、500JPendulum one
3.Sample box one
4.Refrigeration temperature control device One set (installed on the host)
5.Automatic feeding device One set (installed on the host)
6.Take the pendulum transmission device One set (installed on the host)
7. Automatic hanging pendulum device One set (installed on the host)
8. Brand computer one
9.Brand Color Inkjet A4 Printer one
10.Dedicated data processing and control software one set
11.Span board one
12.Specimen centering device one
13.Remover One (for changing pendulum)
14.Anchor bolt four
15.Safety protection device one set
16. 50L liquid nitrogen tank one
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