Zhixuan explains the low-temperature bending test method - Database & Sql Blog Articles

Low Temperature Bending Test Method

The low temperature bending instrument is designed and manufactured in accordance with the specifications of GB/T 18173-2006, specifically for conducting low temperature bending tests on waterproof materials.

Low Temperature Bending Test Method

1. Low Temperature Bender

In a standard environmental condition, measure the thickness of the sample using a thickness gauge. Ensure that the thick surface of the sample has no visible defects or irregularities.

2. Prepare the Test Surface

Ensure the test surface is completely bent outward at 180 degrees. The 50mm (or 25mm) wide edge should be aligned flush without any misalignment. Secure the edge using clips, staples, or 10mm wide tape to prevent movement during the test.

3. Adjust the Bending Instrument

Adjust the distance between the upper and lower plates of the bender to three times the thickness of the sample. This ensures proper bending pressure during the test.

4. Place the Sample on the Bender

Open the upper and lower plates of the bender and place the sample onto them. Make sure the overlapping side faces the rotating shaft and is positioned 20mm (or 25mm) away from it.

5. Conduct the Test

Place the bending instrument along with the sample into the low temperature chamber. Allow it to remain at the specified temperature for 1 hour (or 2 hours). Then, within 1 second, press the flat plate of the bender to the adjusted spacing and hold for 1 second. Remove the sample afterward.

6. Inspect the Sample

After returning to room temperature, inspect the sample for cracks or breaks. If necessary, use a magnifying glass to examine the bend thoroughly.

7. Evaluation Criteria

If two or three specimens show no cracks or fractures after testing, they are considered to have passed the test.

Post-Sales Commitment for Low Temperature Bending Instrument

1. Under normal storage, transportation, maintenance, and usage conditions, if the product cannot function properly due to quality issues, we offer a comprehensive service including warranty, return, replacement, delivery, and package disassembly. The standard warranty period is one year, and it can be extended based on customer requirements.

2. Upon receiving feedback regarding product quality, we will promptly address the issue, visit the site if necessary, resolve the problem, and then analyze the cause and determine responsibility once the system is back to normal operation.

3. The factory provides all necessary technical documents, certificates of conformity, and other relevant documentation when shipping the product.

4. We ensure timely supply of spare parts, installation, commissioning, and maintenance services, as well as technical training for relevant personnel, according to customer needs or agreements.