Laser Soldering Machine in Sensor Electronic Packaging

Rigid PVC sheet is a high-strength, corrosion-resistant, and easy-to-process general-purpose plastic material. Featuring high cost performance, excellent insulation, and stable physical properties, it is widely used in packaging boxes, home appliance accessories, air purifier inner parts, industrial baffles, advertising printing materials, and medical auxiliary components. However, the market is flooded with PVC sheets of uneven quality. To cut production costs, some manufacturers heavily adopt recycled materials, excessive inorganic fillers, and inferior additives, resulting in common defects such as brittleness, deformation, yellowing, and surface precipitation. These flaws seriously affect processing results and service life, and may even fail industry environmental and safety standards. For procurement personnel, production staff, and quality inspectors, mastering an efficient and accurate identification method is essential for quality control, risk avoidance, and production loss reduction.