Application of laser particle size analyzer winner318 in electrostatic spraying powder coating industry Foreword In recent years, the application scope of powder coatings has been continuously expanding, and the requirements for powder coatings and coating equipment have become higher and higher for users. In addition to epoxy powders, polyester-modified epoxy powders and polyester powders have also appeared. This greatly improves the outdoor performance of powder coatings. In terms of color, the current types of powder coatings are more abundant and can meet the requirements. Different needs. As a result, powder coatings have evolved from the past with high-performance anti-corrosion coating applications to the current thin coating of gorgeous decorative applications. Is a qualitative leap in China's powder coating varieties. The majority of powder coatings are currently electrostatically sprayed - the cold coating technology of the powder is heat cured and then filmed. The electrostatic spraying process of powder coating essentially consists of two major parts: the performance of powder coating and electrostatic spraying equipment (including spraying process). These two parts are interdependent and promote each other. Only with the ideal (for electrostatic spraying) powder coating, but also with a good electrostatic spraying equipment, in order to obtain high-quality powder coating. Effect of Particle Size Distribution on Performance of Coatings 1, appearance, leveling In general, the smaller the particle size of the powder, the better the leveling property when the coating is cured, and the smoother and smoother the appearance of the coating film, but the chargeability of the powder is proportional to the square of the particle size, and the powder is too thin and the chargeability is reduced. The coating application efficiency will drop, and the ultra-fine powder (particle size <10 μm) will not be charged. 2, on the powder rate The powder rate has an important relationship with the charging performance of the powder coating itself. Increasing the charge of the paint particles will increase the rate of dusting. The charge of the particles is proportional to the square of the particle size. Increasing the particle size increases the amount of charge of paint particles and increases the rate of dusting. However, the particle size of the particles can not be too large and the particle size is too large. The gravitational effect of the coating particles exceeds the aerodynamic force and the electrostatic force, which in turn reduces the powdering rate. 3, recovery rate Powder coating has the problem of powder recovery during production and use. Generally, the recovery rate of ultrafine powder with particle size of less than 10 μm is low, and when the particle size of powder is >10 μm, the recovery rate of powder coating rapidly increases, and the recovery rate of powder increases. The increase in particle size increases. Based on the above points, it can be seen that the particle size distribution of the powder coating particles largely affects the use performance and the use efficiency of the powder coating. Therefore, there is a need for particle size testing equipment to monitor product quality and assist in the development of new product technologies. Jinan micron particle size analyzer application Jinan Micronner Particle Instruments Co., Ltd. developed a Winner318 split spray laser particle size analyzer for particle size testing of powder coatings. It is a fully automatic laser particle size analyzer. This instrument uses Fraunhofer diffraction theory and typical parallel light test technology and spectrum amplification technology to achieve a wide range of measurement range expansion in a limited space, and to add a number of auxiliary integrated photodetectors, can effectively collect the test range The scattered light at each angle corresponds to the test accuracy and reliability in the full range. In addition, in order to avoid contamination of the lens by powder, mist, etc. during the test, an airflow protection system is designed to effectively protect the lens. The split structure and adjustable test area meet the needs of spray test in any occasion. It has the characteristics of non-contact measurement of powder and droplets, and does not interfere with the flow field, making operation easier and results more stable. The generation of this instrument conforms to the market demand for coatings, focusing on the development trend of electrostatic spraying powder coatings, and is the preferred partner and competent assistant for coating-related particle size testing. Customer application case Beijing Mingjie Painting Equipment Co., Ltd. is an innovative coating technology company with the ability to design, manufacture, install, commission and service automatic spraying systems, using the core equipment of the world-leading ITW Ransburg brand, automation Integrated DISK (rotating dish) spraying system, BELL (spiral cup) spraying system, GUN (electrostatic gun) spraying system, etc. The equipment has been successfully used in domestic well-known auto parts, building materials, home appliances, wood and other industries. ITW Ransburg Industrial Electrostatic Spray System Integrator. The company's goal is to satisfy customers' needs, and in accordance with the technical requirements of the product's coating process, various industrial spray coating system solutions have been individually designed. Beijing Mingjie company has strong technical force and has a special technical center responsible for product quality inspection and research and development. In recent years, due to the need for the production and development of new and high-efficiency electrostatic spraying powder coating equipment and other products, Jinan Micron Particle Instruments Co., Ltd. has cooperated with Jinan Micron Particle Instruments Co., Ltd. to use the Winner318 split spray laser particle sizer for process improvement. A variety of influencing factors in powder particle size measurement of related products were tested and tested, and product testing and analysis provided technical basis for quality inspection and optimization. Over the past 30 years, Jinan Micron Particle Instruments Co., Ltd. has been adhering to the advanced technology to bring benefits to enterprises, create a good environment for the society, provide services for enterprises at all levels, with excellent quality and strong technical support. Has won the majority of users. Bearing Mount,Flange Bearing Housing,Dt Ⅱ Bearing Housing,Bearing Block Types Qufu Zhuoyue Heavy Industry Science&Technology Co., Ltd , http://www.zhuoyueindustry.com