Advantages of YYF-50 slow strain rate stress corrosion testing machine

Advantages of YYF-50 slow strain rate stress corrosion testing machine
The system consists of a stretching machine frame, an environmental container, a computer control system, and corresponding accessories.
1. Stretching machine frame:
The load frame of the slow strain rate stress corrosion testing machine ensures the accuracy and flexibility of testing the slow tensile rate effect
Activity. There are two types of load racks: floor standing and tabletop, which can accommodate loads ranging from 2.54x10-3 to 2.54 x 10-8 mm/s
Within the speed range of loading or unloading, its maximum load can reach 10000psi (50 KN).
In order to ensure the accuracy of the test results to the greatest extent possible, the system adopts a heavy-duty load rack, which maximizes the limit
Reduce the deformation of the system while ensuring accurate positioning of the loading mechanism and gear drive mechanism to provide a constant
The stretching rate. The loading mechanism components are made of 17-4PH high-strength tool steel. Floor standing rack for testing samples
The form of assembly and environmental containers provides the greatest flexibility and workspace, with good passability.
2. Environmental container:
According to different experimental requirements, the working conditions of the environmental container can be raised from normal temperature and pressure to over 22MPa (3300 psi) and 350 ° C. This high-temperature and high-pressure container is specifically designed to simulate tensile testing in high-temperature and high-pressure corrosive environments on site. *The high-temperature and high-pressure container adopts a dynamic sealing device to achieve loading experiments of test samples in high-temperature and high-pressure environments.
Users can choose the manufacturing materials for high-temperature containers based on experimental conditions. We usually provide various materials such as SS316 stainless steel, C-276 H2S resistant Hastelloy, Inconel alloy, etc.
3. Computer control system:
3.1 Hardware System
Adopting PXI modular hardware, including a modular PC (MICROSOFT)
Industrial integrated systems using WINDOWS compatible technology and standardized components can be very efficient
Effectively achieve computerized measurement and automatic control.
The modular distributed I/O system is installed in a sturdy and reliable enclosure. This distribution
The I/O system can input/output analog and digital signals, including in networked situations. can
Select 8-16 channels. This simple distributed system is a low-cost solution and improves reliability.
3.2 Measurement and Control Software
The software developed using the LABVIEW platform provides a very user-friendly and powerful user interface for comprehensive control and measurement of the testing system. Users can easily modify the user interface using the graphical programming language provided by our development software and add the functions they need.
The control interface is a simple and reasonable operating environment for controlling high-temperature and high-pressure vessels, stress corrosion testing, and recording.

Advantages of YYF-50 slow strain rate stress corrosion testing machine

Performance characteristics:
1. Adopting a highly integrated, powerful control, data processing capability, and high reliability control measurement system.
2. Adopting a fully digital, three closed loop (force, deformation, displacement) control system based on neuron adaptive PID algorithm to achieve fully digital three closed loop control of force, deformation, and displacement. The control loops can be automatically switched between, and a smooth transition without impact can be achieved when switching between different modes.
3. Multiple closed-loop control modes such as positioning, fixed speed, fixed strain, fixed strain rate, fixed load, and fixed load rate can be implemented.
4. High precision 24 bit data acquisition system, high resolution, expandable to 8-channel AD acquisition.
The entire control system has high cost-effectiveness and high reliability.
6. It can be adjusted at any speed during the testing process to improve testing efficiency.
7. The entire testing process is controlled by a microcomputer, which dynamically displays the load value, displacement value, deformation value, testing speed, and testing curve in real time.
8. Data processing and analysis are carried out using a microcomputer, and the test results can be automatically saved. After the test is completed, the test curve can be retrieved again, and the test process can be reproduced by traversing the curve, or curve comparison and curve amplification can be performed.
9. The synchronous belt circular arc tooth symmetrical reduction system has the advantages of high efficiency, long service life, low noise, and no maintenance required. Adopting phase-locked loop pulse position control mode, without drifting or misalignment
10. The data can be easily imported into an EXCEL spreadsheet, making it convenient for users to process later.