In the die-cutting process of copperplate silicone paper, paper deformation and edge burrs will seriously affect product quality and subsequent use effects. To solve these problems, it is necessary to start from the raw material performance, equipment parameters, processing technology and other aspects, and take systematic optimization measures.
The quality of raw materials directly affects the die-cutting effect. High-quality copperplate silicone paper base paper should have good stiffness and uniform fiber structure. Base paper with high stiffness can better maintain its shape during die-cutting and reduce deformation caused by force. The uniform fiber structure can ensure that the paper is evenly stressed during the die-cutting process to avoid local excessive deformation. At the same time, the uniformity and stability of the silicone oil coating are also crucial. If the silicone oil is unevenly coated, the release effect of each part of the paper will be inconsistent, and it is easy to pull and deform during die-cutting; a stable silicone oil coating can ensure the stability of the physical properties of the paper before and after die-cutting, and reduce the deformation caused by coating changes.
The accuracy and parameter setting of the die-cutting equipment are key factors. Advanced die-cutting machines are equipped with high-precision tools and transmission systems to achieve precise cutting. The sharpness of the cutter directly affects the edge quality. A sharp cutter can cut the paper fiber cleanly and neatly, reducing the generation of burrs. In addition, the pressure adjustment of the equipment should be accurate and reasonable. Excessive pressure will cause the paper to be over-pressed and deformed, and even damage the cutter; too little pressure may lead to incomplete cutting and edge burrs. Therefore, it is necessary to accurately adjust the pressure parameters of the die-cutting machine according to the thickness and hardness of the copperplate silicone paper to ensure a smooth and efficient cutting process.
The selection and optimization of the die-cutting process also plays an important role in reducing deformation and burrs. Laser die-cutting technology uses a high-energy laser beam to instantly melt or vaporize paper materials. The cutting edge is smooth, almost burr-free, and the mechanical pressure on the paper is small, which can effectively reduce deformation. However, laser die-cutting is costly and is suitable for high-end products with extremely high precision requirements. For ordinary production, traditional knife die-cutting is still widely used, but the effect can be improved by optimizing the knife die design. For example, by using a stepped die cutter, the paper is cut off step by step in stages to avoid the impact caused by a one-time strong cutting, thereby reducing paper deformation; at the same time, the blade angle of the die cutter is reasonably designed to make cutting smoother and reduce the probability of edge burrs.
The control of the processing environment should not be ignored either. Appropriate temperature and humidity conditions can ensure the stability of the physical properties of copperplate silicone paper. In a dry environment, paper tends to become brittle, and burrs are easily generated on the edges during die cutting; if the humidity is too high, the paper will become soft, increasing the risk of deformation. Therefore, it is necessary to control the temperature and humidity of the processing workshop within a reasonable range, generally keeping the temperature at 20-25℃ and the relative humidity at 45%-60%, so that the paper is in the best condition and improves the die-cutting quality.
During the die-cutting process, auxiliary measures can also be used to reduce problems. For example, adding a layer of protective film to the surface of copperplate silicone paper plays a buffering role during die cutting, reduces the direct pressure of the cutter on the paper, and reduces deformation. At the same time, the film can fix the paper fibers to prevent the fibers from loosening during cutting, thereby reducing burrs. In addition, the use of a dedicated die-cutting pad can also improve the effect. The die-cutting pad has good elasticity and resilience, and can evenly disperse the pressure when the knife is pressed down, avoiding excessive local force on the paper, and further reducing deformation and burrs.
The skill level and experience of the operator have a direct impact on the quality of die-cutting. Skilled operators can quickly adjust the equipment parameters and select the appropriate die-cutting process according to the characteristics of copperplate silicone paper. They can also promptly discover and deal with problems that arise during the processing, such as tool wear and abnormal pressure, to ensure the smooth progress of the die-cutting process. Therefore, companies should strengthen the training of operators, improve their professional skills and quality awareness, and ensure the quality of die-cutting from the human factor.
Quality inspection and feedback mechanism is an important part of continuous improvement. During the die-cutting process, the product should be regularly inspected, the edge burrs should be observed through a microscope, and the degree of paper deformation should be measured with a caliper. Once a problem is found, the cause should be analyzed in time, and the raw materials, equipment parameters or processing technology should be adjusted. At the same time, a complete quality file is established to record the process parameters and product quality of each die-cutting, provide reference for subsequent production, continuously optimize the die-cutting process, reduce the deformation and burr problems of copperplate silicone paper during processing, and improve product quality.
