Low temperature bending test method
The low temperature bending instrument is designed and manufactured according to the specifications of GB/18173-2006. Low temperature bending test for waterproof materials.
Low temperature bending test method
1,
Low temperature bender
In the standard environment, the thickness of the sample is measured by thickness measurement, and the thick surface of the sample should have no obvious defects.
2. The test surface is completely 180 degrees outward, so that the 50mm (or 25mm) wide edge is flush and flush, and ensure that no misalignment occurs. The edge can be fixed with a clip or stapler or 10mm wide tape.
3, will
Bending instrument
The spacing between the upper and lower plates is adjusted to three times the thickness of the sample.
4. Open the upper and lower plates of the bender and place the sample on the upper and lower plates. The overlapping side faces the rotating shaft and is 20mm away from the rotating shaft (or 25mm).
5. Put the bending instrument together with the sample into the low temperature box, keep it at the specified temperature for 1 hour (or 2 hours), then press the flat plate on the bending instrument within 1S to reach the adjusted spacing and keep 1S. , take the sample out.
6. After returning to room temperature, observe whether the bend of the sample is broken, or use a magnifying glass to observe whether the sample is bent or not.
7. When two or three specimens are not broken or crack-free, they are evaluated as no cracks.
Low temperature bending instrument after-sales commitment
1. Under the normal conditions of storage, transportation, maintenance and use of the customer, if the product cannot be used normally due to the quality of the product, the "five packs: warranty, return, replacement, delivery, package disassembly" service is provided. The product warranty period is usually one year, and the warranty can be extended according to user needs.
2. When receiving feedback on quality information, we will quickly process the opinions, or rush to the scene to deal with the problem, after normal operation, analyze the reasons and clarify the responsibility.
3. The instrument factory provides necessary technical documents and product ex-factory certificate and other related documents for the products to be shipped.
4. Provide spare parts, spare parts and installation, commissioning, maintenance services and technical training to relevant personnel in a timely manner according to customer needs or agreements.
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