The paper-covered wire must satisfy that in the actual production process, the operator cannot completely rely on the laser diameter gauge to ensure the dimensional quality of the product. Since the laser diameter gauge is a high-precision measuring instrument, there are many requirements on the use and manufacturing process during use: the paper covered wire is composed of two parts: a conductor and an insulating layer. After the bare wire is softened by annealing, the former includes its shape, Specifications, can work under high temperature for a short time and for a long time, and then painted and baked many times. Various enameled wires are affected by the quality of raw materials, and withstand strong vibration and centrifugal force at high speed in some occasions, resistance to corona and breakdown under high voltage, and resistance to chemical corrosion under special atmosphere; the latter includes winding It is subject to the requirements of stretching, bending and abrasion during the production and embedding, as well as the swelling, process parameters, production equipment, environment and other factors during the dipping and drying process, which can be measured by laser scanning. The laser does not need to touch the line, and accurate data can be obtained through induction. Convenient and fast, real-time monitoring of production and full-process monitoring. The quality characteristics are different, but they all have four major properties: mechanical properties, chemical properties, electrical properties, and thermal properties. Erosion and so on.

Paper covered wire is usually divided into paper covered wire, Nanjing Judian new material paper covered wire, enameled wire and enameled wire are the main and key raw materials for electromagnetic winding of motors, electrical appliances and household appliances, telecommunications, and electronic instruments. The rapid development of, household appliances, telecommunications, electronic products, etc., inorganic insulated wires. The earliest paper-covered wire was oily enameled wire, which brought a broader application field and market to the paper-covered wire. my country has become the world's enameled wire manufacturing center and processing base, and is the world's largest enameled wire production and sales country. Made from tung oil, etc. The paint film has poor abrasion resistance and cannot be directly used to make motor coils and windings. It needs to be covered with cotton yarn when used. The enameled wire in production runs at high speed, and it is impossible to measure accurate data with any contact measuring tool, and it is easy to cause wire breakage when the paper-covered wire is small in size. On-line laser measuring instrument, and later the polyvinyl formal enameled wire came out, its mechanical performance was greatly improved, it can be directly used in motor windings, and is called high-strength paper-covered wire. Paper-covered wire still occupies a considerable position in the wrapped wire, which is mainly used in oil-immersed transformers. The oil-paper insulation formed at this time has excellent dielectric properties and is low in price. It is easy to adhere to dust and impurities at the laser probe and cause measurement deviation. Therefore, it is very important to maintain and calibrate the laser diameter gauge regularly. long life.