Ultrasonic test screen is the abbreviation of standard ultrasonic test screen, also known as ultrasonic inspection screen (inspection screen), ultrasonic analysis screen, widely used in scientific research and production, laboratory, quality inspection room, and higher education laboratory of abrasive, geological, metallurgy, pharmacopoeia, metallurgy, chemical, pharmaceutical, powder, building materials, national defense, geology and other departments for precise screening, filtration, and detection of particle size structure, liquid solid content, and impurity content of granular and powdery materials. It is also commonly used in research and development by Tsinghua University, Shantou University, Zhengzhou Sanmu Institute, Zhongmo Company, Baige Group and other units.

The ultrasonic test screen consists of an ultrasonic vibration power supply, XF-300 test screen (host), J200 test screen frame, high-frequency connecting wires, connectors, and time relays. The high-frequency electrical oscillation generated by the ultrasonic vibration power supply is converted into a high-frequency sine wave by the oscillator, and the oscillator uniformly transmits the oscillation wave to the screen surface. The material on the sieve undergoes low-frequency three-dimensional vibration combined with ultrasonic vibration, which can prevent mesh blockage and improve screening yield and quality.

Ultrasonic testing screen (ultrasonic inspection screen, ultrasonic experimental screen) structural components:

A: The standard test sieve (host) - XF-300 test sieve is a particle size analysis instrument that can be timed and automatically shut down to ensure test repeatability, with comprehensive functions and simple operation. A granular material can be precisely divided into 2-8 particle segments simultaneously. Can be used for analyzing the fineness and impurity content of slurry materials.

B: Ultrasonic vibration power supply - with built-in microcomputer chip, it can automatically track the digital frequency throughout the process according to the different states of ultrasonic waves. The operation is simple and convenient, and the oscillator has low heat generation and stable working state after long-term operation.

C: J200 type test sieve frame - equipped with an ultrasonic oscillator on the national standard Φ 200 sieve frame.

D: Time relay is a control device that utilizes electromagnetic or mechanical principles to achieve delay control.

E: The high-frequency connection line - J200 type test screen frame is connected to the ultrasonic vibration power supply through a cable.

F: Connector - aviation connector plug-in.

G: Oscillators - high-performance ultrasonic conversion devices.

Basic working principle of ultrasonic inspection screen

The ultrasonic test screen consists of an ultrasonic vibration power supply, XF-300 test screen (host), J200 test screen frame, high-frequency connecting wires, and connectors. The high-frequency electrical oscillation generated by the ultrasonic vibration power supply is converted into a high-frequency sine wave by the oscillator, and the oscillator uniformly transmits the oscillation wave to the screen surface. The material on the sieve undergoes low-frequency three-dimensional vibration combined with ultrasonic vibration, which can prevent mesh blockage and improve screening yield and quality.

Ultrasonic test screen parameters:

Ultrasonic vibration power supply:

4.1 Power input: AC 220V ± 10%

4.2 Whole machine current: ≤ 0.6A

4.3 High frequency current: ≤ 0.5A

4.4 Operating frequency: 30KHz

4.5 Working mode: continuous, pulse

4.6 Environmental temperature: -10~40 ℃

Regarding the power supply of ultrasonic test screens (ultrasonic inspection screens, ultrasonic test screens):
The ultrasonic control system and the test screen are powered separately, and both the test screen and the ultrasonic power supply are single-phase powered.

The connection between the ultrasonic inspection screen host and the ultrasonic vibration power supply:
Insert the plug on the connection line of the oscillator in the J200 test sieve frame into the socket behind the ultrasonic vibration power supply, turn on the power supply, and the ultrasonic vibration power supply will start working. Adjust the power knob according to the screening needs.

Operation of Ultrasonic Test Screen:

Firstly, place the 200 type test sieve frame on the test sieve tray to adjust the height of the fixture, tighten the M12 and M8 nuts, then plug the power cord into a 220V socket, adjust the time timer according to the testing requirements, turn on the switch to start the test sieve, and the countdown timer will reset to zero. The host will automatically shut down.

Ultrasonic test sieve (ultrasonic inspection sieve, ultrasonic experimental sieve) features:

The overall appearance design of the machine is exquisite, and the relay circuit arrangement is reasonable and stable;

The overall screening machine is lightweight, has a small external volume, and is easy to place and move for use;

The screening accuracy is accurate and the screening efficiency is high in the inspection process, which can screen up to 0.025-3mm;

Analyze the low overall noise in the screening process and test the product through practice;

The 300J standard test screen box and vibrating plate are made of high-quality SUS304 stainless steel material refined;

The inspection and screening time is controlled by a Chint time relay, accurately keeping the inspection time within one second;

The product has been reformed through nanotechnology, and four high elasticity rubber springs have been specially installed at the bottom of the test screen, cleverly and effectively reducing the vibration of the whole machine on the office desk;

The test screen frame is made of SUS304 (0Cr18ni9) stainless steel by stretching and polishing, with a wall thickness of 0.6 millimeters and uniform surface gloss. The overall molding is sturdy and durable, without any magnetism. The standard screen mesh and the standard screen frame are fixed by soldering, without relaxation or shaking, and can withstand high temperatures below 300 degrees.

Ultrasonic testing screen (ultrasonic inspection screen, ultrasonic experimental screen) with matching inspection screen frame composition:

The upper part of the 300J test screen is composed of fixed brass nuts, pressure plates, screen covers, screen frames, middle screen frames, screen bottoms, equidistant adjustment rods, and other components. All components are made of high-quality SUS304 stainless steel and are finely processed. They can be flexibly matched with each other and have high interchangeability, making them one of the standard test screen frames.

Ultrasonic test sieve (ultrasonic inspection sieve, ultrasonic experimental sieve) supporting inspection sieve frame specification table:

The screen frame prepared for ultrasonic test sieve has a diameter of 200mm; (standard sieve/standard test sieve) there are two types of mesh screens: metal wire woven mesh according to GB6003.1-1997 and perforated plate mesh according to GB6003.2-1997. It can also be used in standard test sieves or impact type standard inspection sieves to classify the particle size of various national powder materials. Widely used for precise standard screening and particle size detection of granular materials in industries such as superhard materials (diamond, cubic boron nitride) abrasives, geology, metallurgy, pharmacopoeia, chemical building materials, etc.