introduction
In modern packaging, printing and paper industries, cardboard is a widely used material, and its quality and strength are directly related to the safety of packaging and the quality of products. In order to ensure that the quality of cardboard meets standards, the cardboard strength testing machine has become a vital tool. This advanced instrument provides the paper industry with a reliable means of quality assurance by comprehensively and accurately testing the physical properties of cardboard. This article will deeply explore the principles, technical characteristics, application fields and future development trends of cardboard strength testing machines, showing readers this indispensable tough guardian in the paper industry.
Fundamental
The basic principle of the cardboard strength testing machine is to perform various mechanical tests such as stretching, folding, and compression on cardboard samples by applying force to measure their physical properties under various conditions. The working process of the testing machine mainly includes the following steps: cut or prepare the cardboard sample according to the size and shape specified by the standard; clamp the sample in the clamping device of the testing machine to ensure that the sample is evenly stressed and does not slip or Deformation; through the control system of the testing machine, a predetermined force is applied to conduct tensile, folding, compression and other tests on the cardboard sample; through the sensor and measurement system, the deformation of the sample is monitored in real time, including tensile deformation, folding times, and compression deformation. etc.; based on the measured data, calculate various physical performance indicators of cardboard, such as tensile strength, folding strength, compression strength, etc.

Technical features
The cardboard strength testing machine has the characteristics of multi-function testing and can comprehensively test the strength of cardboard in different directions and under different conditions, including longitudinal strength, transverse strength, etc. The advanced testing machine is equipped with high-precision sensors and measurement systems, which can accurately measure the tiny deformation of cardboard to ensure the reliability of test results. The testing machine can simulate various conditions of cardboard in actual use, such as performance testing under different humidity and different temperatures, to gain a more comprehensive understanding of its performance in various environments. Advanced cardboard strength testing machines usually have automatic control functions, which can automate the testing process through a computer control system to improve testing efficiency and accuracy. The testing machine can monitor data changes during the test process in real time and display them on the control screen in graphic or numerical form, allowing the operator to understand the test status at any time. For cardboard samples of different shapes and sizes, the testing machine is equipped with a variety of clamping devices to ensure that the samples remain stable during the testing process.
Application areas
In the packaging industry, cardboard is one of the commonly used packaging materials. The cardboard strength testing machine can be used to test the compressive strength of various packaging boxes and cartons to ensure that the packaging is not easily damaged during transportation and storage. Cardboard is widely used in the printing industry for covers or packaging of printed matter such as books and magazines. Strength testing helps determine the paperboard's resistance to abrasion and folding during the printing process. In the papermaking industry, cardboard is a raw material whose quality and strength have an important impact on the quality of the final paper product. Cardboard strength testing machines can be used in quality control and research and development processes. For electronic products, especially fragile or sensitive devices, cardboard strength testing machines can be used to evaluate the impact resistance of packaging to ensure that the product is not damaged during transportation. Food packaging requires cardboard to have certain strength and sealing properties to protect the freshness and safety of the food. Cardboard strength testing machine can be used to test the performance of various types of food packaging.
With the continuous advancement of technology, cardboard strength testing machines may achieve more comprehensive and diverse performance testing, including more detailed parameters such as the elastic modulus and elongation at break of cardboard. Future testing machines may be more suitable for testing a variety of paper materials, such as cardboard, corrugated paper, paper, etc., to meet the testing needs of different industries for different paper materials. Future designs may pay more attention to energy conservation and environmental protection, using greener materials and more energy-saving technologies, in line with the trend of sustainable social development. In the future, cardboard strength testing machines may realize remote transmission and monitoring of data through Internet technology, providing enterprises with more convenient means of data management and quality control.
Conclusion
As a key instrument in the paper industry, the cardboard strength testing machine provides reliable technical support for the production and quality inspection of paper products by accurately testing various physical properties of cardboard. By having an in-depth understanding of the principles, technical characteristics, application fields and future development trends of cardboard strength testing machines, we can better understand and utilize this tough guardian in the paper industry and play an active role in improving the quality and innovation of paper products. effect.
