Have you chosen the most popular plastic film thic

2022-08-18
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Have you chosen the right plastic film thickness gauge

whether the thickness of the film is uniform is the basis for testing the properties of the film. Obviously, if the thickness of a batch of single-layer films is uneven, it will not only affect the tensile strength, barrier performance and other indicators of the film, but also affect the subsequent processing of the film. In addition, reasonable control of product thickness can not only improve product quality, but also reduce material consumption and improve production efficiency. Therefore, whether the film thickness is uniform, whether it is consistent with the preset value, and whether the thickness deviation is within the specified range are all important prerequisites for whether the film can have some characteristic indicators. Film thickness measurement is one of the basic testing items in film manufacturing industry

however, there are many kinds of film thickness measuring equipment on the market. Did you choose a suitable thickness gauge when purchasing

the thickness test of plastic film was first used in the thickness measurement of film in the laboratory, that is, film sampling in the laboratory and thickness detection to obtain the thickness data of film. Later, with the continuous development of technology, thickness measuring equipment that can be used in film production line has been gradually developed. Thickness gauge technology is completely different from non-thickness measurement technology in terms of testing principle. Generally speaking, thickness gauge mostly adopts non-contact measurement methods such as ray technology, while non-thickness measurement technology generally adopts mechanical contact measurement method or measurement method based on eddy current and electromagnetic induction principle, as well as optical thickness measurement and ultrasonic thickness measurement technology

faced with so many thickness measurement methods mentioned above, what choice should enterprises make when choosing film thickness measurement equipment

1. Ray thickness gauge

ray technology is mostly used in thickness measuring equipment, and the requirements for measuring objects are not high. However, since the thickness gauge needs to be installed on the film production line, due to the changes of ambient temperature, atmospheric pressure and the fluctuation of the film in the production line, the requirements for the ray thickness gauge are very high, so the equipment improves the quality level of the published products, how difficult it is for the price to move smoothly, and the subsequent maintenance costs will be quite large. For enterprises, the cost will be very high

2. Mechanical contact thickness gauge

mechanical contact thickness gauge is essentially different from the non-contact thickness measurement method. During the test, the equipment will apply a certain pressure (point contact force or surface contact force) to the measuring surface of the sample, which can avoid the phenomenon of large data fluctuation when using the non-contact thickness gauge to measure those materials with certain compressibility and uneven surface. The mechanical contact thickness gauge adopts the most traditional and basic thickness measurement method, with stable and reliable data and no selectivity for samples. Because the test accuracy of this thickness gauge mainly depends on the accuracy of the thickness sensor, the test accuracy of the mechanical contact thickness gauge on the market is uneven at present. The chy-c2 and chy-ca thickness gauges developed and produced by Labthink Languang adopt sensors with ultra-high resolution of 0.1 M, with high testing accuracy and excellent data stability. They are suitable for the thickness detection of various films, composite films, thin sheets and other materials. The equipment complies with GB 6672 (determination of thickness of plastic films and sheets by mechanical measurement), gb/t 451 (determination of paper and paperboard thickness), gb/t 6547, ASTM d645, ASMT d374, ASTM can be divided into tensile testing machine, compression testing machine and other testing machines d1777, TAPPI T411, ISO 4593, JIS z1702, BS 3983, BS 4817 and other testing standards. If enterprises need to purchase non thickness gauge, 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 use the principle of eddy current and electromagnetic induction respectively. The equipment can be used to measure the thickness of various specific coatings, but there may be errors when it is used to measure the thickness of films and papers. For enterprises with very high requirements for test accuracy, they need to take more consideration when purchasing. The phenomenon of insufficient accuracy and prone to errors may bring unnecessary trouble to enterprises

4. Ultrasonic thickness gauge

ultrasonic thickness gauge is also mostly small portable equipment. Using the principle of ultrasonic reflection, it can measure the thickness of metal, plastic, ceramics, glass and any other good ultrasonic conductor. It can work at high temperature, which is not available in many other types of thickness gauges, but it has selectivity for the type of test samples

the above information is released by Jinan Languang Electromechanical Technology Co., Ltd., which specializes in the development and production of mechanical contact film thickness gauge. For more detailed information, please call us

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