Product Introduction

Upgrade and renovation of universal material testing machine, nationwide door-to-door service

Basic requirements for upgrading and renovating universal material testing machines:

1. The ball screw or T-screw of the universal material testing machine is intact and running normally.
2. The transmission system is operating normally, including the power system, gearbox, toothed belt, chain, etc.
3. The operation of the hydraulic universal material testing machine oil cylinder needs to be normal.
4. The one-way displacement control is normal, and the one-way force control is normal.
The principle of upgrading and transforming the universal material testing machine:
The so-called transformation and upgrading refers to the transformation of the measurement and control system, which is an important component of the universal material testing machine. The main part of the testing machine should be intact. By installing precision measuring devices such as force sensors and displacement sensors, the original mainframe of the testing machine is connected to our company's measurement and control device. Thus, data collection can be carried out, and for electronic universal testing machines and electro-hydraulic servo universal testing machines, functions such as host control output, force holding, deformation holding, etc. can also be performed.

Upgrade and renovation of universal material testing machine, nationwide door-to-door service

Introduction to the Upgrade and Transformation Plan of Hydraulic Universal Material Testing Machine

The testing process of this hydraulic universal testing machine adopts hydraulic manual loading, sensor force measurement, real-time display on the computer screen, and automatic storage and printing function. After the experiment is completed, the maximum strength, tensile strength, yield strength, elastic modulus, elongation at break, and reduction in cross-sectional area of the material will be automatically calculated The software system adopts a standard database design, which is powerful but easy to use. Electronic measurement collects experimental data, automatically analyzes, prints reports and curves. This system is suitable for the technical transformation of a full range of hydraulic universal testing machines from manufacturers in Wuxi, Zhejiang, Beijing, Hebei, Jinan, Changchun, Hongshan, Shanghai, Guangzhou, and other regions.
1、 Transformation method:
l. Install high-precision hydraulic sensors on the dynamometer of the original testing machine;
2. Add one computer and one printer, and install them inside the computerOne set of EHC-3100 measurement and control electrical system;
3. Install a set of MaxTest universal software on the computer;
4. The measurement and control signals are processed and managed on the computer through MaxTest software.
2、 Main indicators:
1. Maximum test force: 300kN
2. Testing machine level: Level 1;
3. Test force grading: equivalent to four grades without grading throughout the entire process (with constant resolution throughout the entire process);
4. Effective measurement range of experimental force: 2% to 100% FS
5. Force resolution: 1/300000;
6. Accuracy of test force measurement: better than ± 1% of the indicated value;
7. Stretching gauge gauge length: 50mm
8. Deformation measurement range: 0-15mm
9. Effective measurement range of deformation: 2% to 100% FS
10. Deformation resolution: 1/300000 of the largest deformation;
11. Accuracy of deformation measurement: better than ± 0.5% of the indicated value;
12. Displacement measurement range: 0-250mm
13. Limit error of displacement indication: better than ± 1% of the indication;
14. Displacement resolution: 0.01mm
15. Software and Interface: Software and interactive human-computer dialogue operation interface in WINDOWS operating environment;
3、 Function Introduction:
（1） Advantages of the system:
(1) The entire system has no adjustable devices such as potentiometers, making it easy for users to use;
(2) The system is fully digital designed, with high precision, stability, and security;
(3) The system adopts digital zeroing and parameter calibration;
(4) The system control parameters can be automatically calibrated, and there will be no situation where the system cannot be used after the technical personnel leave;
(5) After the experiment is completed, the system automatically analyzes the experimental data and curves, which can also be analyzed under manual intervention;
(6) Special test reports can be customized according to customer requirements;
(7) System software integrates over thirty national standards or test methods, including GB/T228-2002;
(8) The software is simple and easy to operate;
(9) The software can display the loading speed of the load;
(10) Experimental data can be queried, printed, and browsed through the internet.
（2） Introduction to Measurement and Control Acquisition System: (1) Circuit Introduction of Measurement and Control Acquisition Card:
The AD800 all digital data measurement and control acquisition card is a microcomputer built-in PCI test card based on the PCI interface, which complies with the PCI2.1 specification. This card can be directly inserted into any PCI slot of the microcomputer, and connected directly to the testing machine through a simple connection to achieve automatic measurement and control of the microcomputer, truly achieving plug and play testing. The AD800 universal test card integrates functions such as programmable amplification A/D conversion, digital I/O, counting and pulse generation (PWM), and square wave generation (SWP). Its system structure is reliable, simple, and has excellent interchangeability.
(2) Technical performance of AD800 acquisition card:
1. The entire system adopts digital design, which is safe, stable, reliable, and highly accurate;
2. There are no adjustable components in the entire system, and digital zeroing and automatic calibration of measurement and control parameters are required;
3. The system integrates CPLD computing devices with high-speed computing capabilities to process digital signals in real-time;
4. This system adopts the PCI2.1 bus standard, which is easy to expand, upgrade, and achieve "plug and play" functionality;
5. Automatic zero detection.
4、 Introduction to Measurement and Control Software:
6. Based on the WINDOWS operating platform, the software has simple operation, powerful functions, and a human-machine dialogue structure;
7. Display the test force value in four levels of digital display, with an accuracy of ± 1% of the displayed value starting from 20% of each range;
8. Four levels of digital display deformation, with an accuracy of ± 0.5% starting from 20% of the range for each level;
9. Simultaneously record force time, deformation time, and force deformation test curves, which can be switched for observation at any time, zoomed in and out, moved horizontally or vertically, and sampled in real-time at high speed;
10. Use human-computer interaction to analyze and calculate the mechanical performance indicators of the test material. At the end of the test, the system will automatically calculate the results of elastic modulus, yield strength, tensile strength, etc. On the basis of automatic analysis, manual intervention can also be used to correct the analysis results, improving the accuracy of the analysis;
11. The experimental data adopts a standard database management method, which automatically saves all experimental data and curves;
During the experiment, the test curve will be displayed in real-time. After the experiment is completed, the test data, curve, and specimen information of the specimen will be displayed in this operation window;
13. The control software now integrates over 100 national standards or testing methods, which can meet customers' various testing needs. The testing report methods can be customized and updated according to customers' needs at any time, which can bring great convenience to customers;
14. Historical experimental data can be queried in the database, and by entering certain conditions, the experimental data can be immediately found;
15. The force value and deformation can be automatically calibrated. After our debugging is completed, if the user feels that the displayed values are inaccurate or the measurement and control parameters have been changed, they only need to click the automatic calibration button, and the system parameters will be restored to the debugging state;
16. Two acquisition channels can be zeroed with just a mouse operation, and the system usually only needs to be zeroed once. Under normal use, the system will automatically return to the true zero point;
17. It is possible to summarize and analyze a batch of similar specimens, compare the measurement and control data, and calculate the average value. The specimens can be summarized and printed in batches;
18. Provide multiple report printing formats, allowing users to edit reports in any format as needed (batch processing, control programmer, report processor, EXCEL report processor, etc.); Performance characteristics:
● Automatic control, measurement, data acquisition and processing, drawing and printing of test curves and test reports;
● Automatic calibration and zeroing of the measurement and control system;
● Speed control of test force, deformation, displacement, etc., with a control error better than ± 1% of the set value;
● Stepless speed regulation, the control speed and control mode can be smoothly switched and maintained during the test process;
● Data storage and curve amplification, which can display different experimental curves during the testing process;
During the automatic operation of the program, it can be switched to manual control at any time, and the control mode and speed can be manually adjusted;
● Test force overload automatic protection function, the protection range can be set arbitrarily;
● It is possible to establish microcomputer networking between laboratories for easy management.
Highlight excellent configuration:
● Manual automatic control operation mode, which can be automatically controlled by computer or
Manual operation greatly improves work efficiency and reduces the labor intensity of operators;
Hydraulic automatic tightening, sample clamping is secure and not easy to slip;
Using a spoke type load sensor to directly measure the actual force value of the sample, the measurement is accurate and reliable, avoiding the force drift caused by oil temperature in hydraulic sensor measurement and the influence of friction between the piston and cylinder on the test force;
Adopting Italian imported oil pump units, with low noise and stable oil circuit without impact;
Equipped with a universal ball head automatic centering mechanism, it ensures the alignment of the upper and lower clamps of the sample after being subjected to force.
5、 List of configuration for renovation plan
1). One set of AD800 data acquisition system;
2). One set of testing machine measurement and control software (including CD);
3). One computer (Fangzheng);
4). One printer (HPA4 inkjet);
5). One high-precision force measurement sensor;
6). One high-precision electronic extensometer;
7). One set of displacement measurement device (including one high-precision photoelectric encoder);
8). One software user manual;
9). Several other electrical and oil source connectors and accessories;