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However, there are many types of film thickness measuring equipment on the market. Have you chosen the right thickness gauge when purchasing?
The thickness of the plastic film test Zui used for film thickness measurement is the laboratory thickness measurement technology, that is, film sampling in the laboratory, thickness testing to obtain the thickness data of the film. Later, as technology continued to evolve, online thickness measuring equipment that could be used on film production lines was gradually developed. On-line thickness gauge technology and off-line thickness measurement technology are completely different in the test principle. Generally speaking, online thickness gauges mostly use non-contact measurement methods such as ray technology, while online thickness measurement techniques generally use mechanical contact measurement. The method is based on the measurement method of eddy current and electromagnetic induction principle, and also adopts optical thickness measurement and ultrasonic thickness measurement technology.
In the face of such a large number of thickness measurement methods, what choices should companies make when choosing film thickness testing equipment?
1. Ray-type thickness gauge ray technology is mostly used on equipment for online thickness measurement, and the requirements for measuring objects are not high. However, since the online thickness gauge needs to be installed on the film production line, the requirements of the ray thickness gauge are very high due to the changes in ambient temperature, atmospheric pressure, and the fluctuation of the film appearing in the production line, so the price of the equipment and the subsequent maintenance cost will be quite big. For companies, the cost will be high.
2, mechanical contact thickness gauge mechanical contact thickness gauge, it is essentially different from the non-contact thickness measurement method - the equipment will apply a certain pressure to the measurement surface of the test (point contact force or surface contact force) ), this can avoid the phenomenon that data fluctuations may occur when using non-contact thickness gauges to measure materials with certain compressibility and uneven surface. The mechanical contact thickness gauge adopts the traditional thickness measurement method of Zui, and the data is stable and reliable, and has no selectivity for the sample. Since the test accuracy of such a thickness gauge mainly depends on the accuracy of the thickness measurement sensor, the test accuracy of the mechanical contact thickness gauge currently on the market is uneven. The CHY-C2 and CHY-CA thickness gauges developed by Labthink use ultra-high resolution 0.1μm sensors with high test accuracy and excellent data stability. They can be applied to various films, composite films, sheets and Other materials. Thickness detection. The equipment complies with GB6672 (measurement of plastic film and sheet thickness - mechanical measurement method), GB/T451.3-2002 (measurement of paper and board thickness), GB/T6547, ASTMD645, ASMTD374, ASTMD1777, TAPPIT411, ISO4593, JISZ1702 BS3983, BS4817 and other test standards. If enterprises need to purchase non-online thickness gauges, they can consider the thickness gauge equipment of Jinan Languang Electromechanical Technology Co., Ltd.
3. Eddy current thickness gauge, magnetic thickness gauge eddy current thickness gauge and magnetic thickness gauge are generally small portable devices, which utilize the principle of eddy current and electromagnetic induction respectively. The device can be used to measure a variety of specific coating thicknesses, but there is the possibility of errors in measuring the thickness of the film or paper. For enterprises with very high test accuracy requirements, it is necessary to consider more when purchasing, the accuracy is not high enough, and the error is easy to occur, which may bring unnecessary trouble to the enterprise.
4, ultrasonic thickness gauge ultrasonic thickness gauge is also a small portable equipment, using the principle of ultrasonic reflection, can measure the thickness of metal, plastic, ceramic, glass and any other good ultrasonic conductor. It can work at high temperatures, which is not available in many other types of thickness gauges, but is selective for the type of test specimen.
The above information was released by Jinan Languang Electromechanical Technology Co., Ltd., Jinan Languang Electromechanical Technology Co., Ltd. specializes in the research and development of mechanical contact film thickness gauges. For more detailed information, please contact us!
Plastic film thickness gauge, are you right?
Whether the thickness of the film is uniform or not is the basis for detecting the properties of the film. Obviously, if the thickness of a batch of single-layer film is not uniform, it will not only affect the tensile strength and barrier properties of the film, but also affect the subsequent processing of the film. In addition, reasonable control of the thickness of the product not only improves product quality, but also reduces material consumption and improves production efficiency. Therefore, whether the thickness of the film is uniform, whether it is consistent with the preset value, and whether the thickness deviation is within the specified range, these are all important prerequisites for whether the film can have certain characteristic indexes. Film thickness measurement is one of the basic inspection items for the film manufacturing industry.