Overview
Testex Press-O-Film HT asperity replication tape, commonly known as anchor paper, rubbing paper. This product consists of polyester film and compressible film with a rated Measurement range of 40 to 115 microns. Each roll of tape has a manufacturing code and date for traceability, and can be used for a long time under suitable storage conditions.
Features
The composite structure of 2 mils (50 microns) polyester film and about 5 mils (127 microns) compressible film is adopted.
2. Small changes in compressible film thickness do not affect measurement accuracy.
3. Measurement range of 1.5 to 4.5 mils (40 to 115 microns).
4. Each roll of tape is labeled with the manufacturing code and date for easy product traceability.
5. It can be stored for a long time in a clean drying environment with stable performance.
Principle
The product uses a profiling method for measurement of surface roughness. First, a copy tape is used on the surface treated with sand blasting or shot peening to generate an "impression" reflecting the asperity characteristics of the substrate. Subsequently, the peak and valley structure of the impression is measured using a dedicated Roughometer to obtain the asperity value of the copied surface.
Applications
Sand blasting surface roughness measurement, shot peening surface roughness measurement
Steps
1. Paste the asperity copy tape on the sand blasting or shot peening surface to be tested.
2. Make sure the tape is in full contact with the surface and replicate to form a "impression".
3. Remove the tape with the impression.
4. Use Roughometer for peak and valley measurement of the impression on the tape.
5. Read and record the surface roughness value obtained from the measurement.
Notice
* Tape should be kept in a relatively clean, drying environment.
* Avoid tape exposure to environments above 120 degrees Fahrenheit (50 degrees Celsius) to prevent performance degradation.
* It is strictly forbidden for the tape to contact the environment with a temperature higher than 140 degrees Fahrenheit (60 degrees Celsius), otherwise it will affect the reproduction effect.
* The tape should be kept away from petroleum products to avoid tape degradation.
