Recently, the project (Rapid Testing Device and Application of Cavitation Resistance of Coating Surface) jointly cooperated by our company (Nanjing Xian'ou Instrument Manufacturing Co., Ltd.), Institute of Product Quality Standard of Ministry of Water Resources and Hangzhou Mechanical Design and Research Institute of Ministry of Water Resources, has been awarded the 2022 New Technology Promotion Guidance Catalog of Zhejiang Province Water Resources (Certificate No.: ZST2022001).

In the research process of anti-wear (wear-resistant) materials, it is necessary to measure, compare and evaluate the wear resistance of materials. For example, components such as pumps, valves, runners and blades of hydraulic turbines often fail due to cavitation damage. Cavitation damage is one of the common forms of failure in aero-engine oil supply system components. Aero-engine oil supply system components work in the high-pressure aviation kerosene medium, a large number of the presence of the addition of force and pumping components caused by the work of the system between the different parts of the pressure changes are huge, very easy to occur cavitation damage, and even lead to parts of the breakdown and rupture, seriously affecting the safe operation of the aero-engine. Hydraulic turbines working in sediment-laden water are subject to serious abrasion and rapid damage, requiring frequent shutdowns for maintenance, and even being forced to release water during the flood season, resulting in huge losses in economy and energy. Therefore, solving the problem of rapid abrasion damage of hydraulic turbine is an important task for the development of hydropower.

The device consists of ultrasonic vibration system and constant temperature system, etc. Based on the mechanism of hydro-mechanical cavitation damage, the use of ultrasonic cavitation technology can improve the simulation effect of hydro-mechanical cavitation environment and shorten the development cycle of anti-cavitation materials. Main performance characteristics: wide range of ultrasonic amplitude, high peak value, can more accurately simulate the cavitation damage; significantly reduce the test equipment area and construction costs, amplitude 100μm ± 5%; ultrasonic maximum power: 2500W; equipment occupies an area of about 3m2; testing time of about 1 hour.

Gao Wenhua, general manager of Nanjing Xian'o Instrument Manufacturing Co., Ltd. said that the company will always maintain a high level of R&D investment and adhere to technological innovation to ensure the technological advancement of this product. With stable product quality and service system to provide users with efficient and reliable solutions.

Product Description:
Ultrasonic material cavitation tester     
 Model: XOQS-2500

Optional electrochemical working platform

Replaceable replacement head made of titanium alloy as standard (stainless aluminum, copper, iron and other metals are optional)
Use: For material cavitation test, metal fatigue strength test, etc.
Details:
The series of intelligent temperature-controlled ultrasonic material cavitation tester also known as vibratory ultrasonic cavitation system, ultrasonic cavitation machine, ultrasonic abrasion tester, ultrasonic acoustic focusing probe-type acoustic chemical treatment system produced by Xian'eu Company is developed and manufactured in full accordance with the requirements of the American Society for Testing and Materials standard (ASTM) G32-06, and won the second prize of the Science and Technology Progress of China Surface Engineering Association in 2019. Ultrasonic technology itself has outstanding advantages, it has no moving parts, no electromagnetic radiation, very simple installation and fixation, especially suitable for applications in high-pressure and high-temperature, toxic and explosive hazardous environments. This set of system is through high-power ultrasonic action on the sample, simulating the sample and liquid contact surface cavitation phenomenon, and then can be analyzed on the anti-cavitation of materials, a detailed study of the inherent anti-cavitation properties of the given material and its process, or in different test conditions to study the test variables on the material to produce damage to the impact.

With high power, low investment, easy installation, stable experimental results and other characteristics, this system after independent research and development so that it has real-time monitoring, adjustment, display and time control functions to meet the various needs of customers. Working principle: Through the cavitation effect produced by high-power ultrasonic waves in the liquid, the cavitation condition of the material is simulated at high speed. Under the specified frequency and temperature, the larger the amplitude of the ultrasonic wave, the faster the speed of material cavitation. The product is widely used in new material testing, metal fatigue strength test, can be customized according to the requirements of different frequency custom.

Technical parameters:
1, with integrated chassis, 7-inch visualization touch interface control, high-precision temperature control, as well as directional transmission and other functions, and the use of independent patented ultrasonic cavitation technology.
2, the use of imported original British Cambridge has a non-pulsed and pulsed ultrasonic dual generation system, stable performance;
Ultrasonic power: 2500W, ultrasonic frequency: 20KHz, ultrasonic maximum amplitude: 100um, test container acid and alkali resistance.
3, ultrasonic transducer with liquid level lifting function, according to the experimental requirements of precise control of the immersed liquid level, vertical lifting and lowering of the liquid level accuracy: ± 0.01cm;
4. Equipped with light source device: power 100W;
5, with a high-precision low-temperature chiller, can control the temperature range: -10 ~ 100 degrees, capacity: 5L, temperature fluctuation: 0.05 ℃, LCD resolution: 0.01 ℃,;
6, the maximum volume of the sample: 1000ml, ultrasonic probe diameter (random): Φ15.9 a, titanium alloy replacement head 5;
7, the container can be optional with a unique design of the through the cold water device function: can control the temperature: -10 ~ 100 ℃; can effectively control the production of high temperature due to ultrasonic cavitation impact, to ensure that the uniformity and repeatability of the batch test;
8, parameter control part of the 7-inch sensitive touch screen operating system, all parameters programmable control, 10 groups of experimental data storage;
9, with AAA-level high-precision platinum sensing temperature measurement and over-temperature abnormal alarm system, real-time accurate detection and control of temperature 10, working time: can work continuously, in 0-999s adjustable;

11, can be equipped with a variety of ultrasonic probe diameter: Φ2, Φ3, Φ10, Φ15, Φ18, Φ25, Φ30, Φ35 suitable for experiments with different size samples;
12, with high-precision sample platform lifting device, in order to combine with ultrasonic;
13. Configuration list:
1）、Ultrasonic signal generator ：Operating system, full touch screen control Qty: 1.
2）、Ultrasonic amplifier rod: Titanium alloy Φ15.9, Quantity: 1, 5 replacement heads.
3）、High-precision low-temperature chiller: -10 degrees 5L Qty: 1.
(4), high-precision liquid level control lifting device: immersion level accuracy: ± 0.01cm Qty: 1.
(5), irradiation light source device: power 100W, quantity: 1
6), PT100 probe type temperature sensor: 1
7）、Universal fixture: stainless steel, quantity: 1
8）、Condensing device: metal serpentine condensing tube, quantity:1
9）、Circulation pipe with heat preservation sleeve: Silicone material, Quantity: 4 meters

The units that have been used the instrument are: Institute of Metals, Chinese Academy of Sciences, Beijing Armored Corps College, Jiangsu Provincial Institute of Water Conservancy Research, Nanjing Institute of Water Conservancy Research, Hohai University, Jiangsu University, Jiangsu University of Science and Technology, Shanghai Jiao Tong University School of Materials Science, Shanghai University, Shanghai University of Power, Zhejiang University of Technology, Jiangnan University, School of Mechanical Sciences, Suzhou Research Institute of Thermal Engineering, Zhejiang Provincial Institute of Product Quality Standards of the Ministry of Water Resources, Nanchang Aviation University, Marine Chemical Research Institute (Qingdao), Dalian Maritime Academy, Zhejiang University Hydraulics, Shanghai Electric Power Institute, Jiangsu Xisiwei Bearing Company, Yangzhou University, College of Environment, and articles published such as: 1, corrosion and protection (TC4 titanium alloy in lithium bromide solution cavitation behavior) Nanchang Aviation University, College of Materials Science and Engineering. 2. Journal of Power Engineering (17) -4PH turbine blade laser solid solution strengthening anti-cavitation performance research) Zhejiang University of Technology Laser Advanced Manufacturing Research Institute, Hangzhou Turbine Co., Ltd. and Carleton University School of Mechanical and Engineering.