Product Introduction of CHS-1 Silicon Steel Sheet Iron Loss Tester

The Epstein Square Circle method experimental apparatus is widely used as a standard method for measuring iron loss in silicon steel sheets, but it requires the preparation of specific experimental samples, the tested silicon steel sheets are damaged, and it takes a lot of time. The CHS-1 silicon steel sheet iron loss tester is a yoke type experimental device that has significant advantages over the Epstein method. It can provide direct reading values of iron loss per kilogram of a single sample, saving time and effort without damaging the sample.

This instrument can visually and quantitatively measure the iron loss value of cold-rolled and hot-rolled silicon steel sheets, and can be used for product factory or incoming inspection. It can flexibly study the performance of each point of silicon steel, improve the process flow, or distinguish the types of silicon steel sheets.

Working principle of CHS-1 silicon steel sheet iron loss tester:

The 50Hz oscillator generates a 50Hz sine wave signal, which is then passed through a voltage controlled linear variable resistor G to control the output current of the power amplifier. Regardless of the magnetic induction intensity of 1.7T or 1.0T, the voltage waveform of probe N2 is a sine wave. No waveform correction is required. By testing the sample, the magnetic circuit is closed, and the sine voltage induced on N2 is amplified. Under the control of the preset value of magnetic flux density B and the preset value of chip thickness, this amplified voltage is compared with the reference voltage after rectification and filtering. The difference is controlled by a linear variable resistor to ensure the preset value of magnetic flux density. It is then multiplied with the H wave amplified by another current flowing through N1 after R sampling. The product is filtered and density corrected, and the corresponding iron loss value is directly shown using DPM.

Technical Specifications:

Quantity limit: below 20W/kg

Magnetic flux density: 1.0T, 1.5T, 1.7T

Sample thickness: 0.05~0.99mm

Sample type: Cold rolled grain oriented silicon steel sheet

Cold rolled non grain oriented silicon steel sheet

Hot rolled silicon steel sheet

Measurement frequency: 50Hz

Error: 5%

Power supply: AC 220V (1 ± 10%), 50Hz

Chassis size: 300 × 360 × 140mm

Operating environment temperature: 5 ℃ -40 ℃

Precautions for silicon steel single piece iron loss tester:

If the surface of the sample is uneven, measurement will result in errors.

2. Generally, when measuring, place the probe on a flat surface of the sample, relying on the weight of the probe itself, and do not press the probe hard.

3. The measured sample requires a width greater than 40mm. If it is less than 40mm, the measured value tends to be greater than the actual value.

4. The probe should avoid violent collisions.

5. Randomly bring three steel plates as reference plates. If the steel strips are not subjected to stress accumulation due to significant vibrations during transportation, the values obtained by the instrument from testing the performance of these three steel strips should be within 5% of the values marked on the strips.

When testing reference films, attention should be paid to parameters such as the category, thickness, density, etc. marked on the film. The sample should be placed on a smooth wooden table for testing, and the probe should be aligned with the center of the drawn frame, that is, the four sides of the probe should be symmetrically spaced from the four sides of the drawn frame, and all should fall inside the frame without any external force.