Insulating paint inseparable from the special oil pump motor

In the world of motor technology, hydraulic motor pumps and insulating paints are closely linked. As the components and manufacturing techniques of insulating paints continue to evolve, so do the methods used in motor design and production. These advancements have led to the widespread use of high-temperature, high-power density motors that were once considered unfeasible. Today, Dalan Motor's Xiao Bian is also exploring this field, engaging in a conversation about insulation paint. Motor insulation paint can be classified into five main types based on its application: impregnating paint, enameled wire paint, covering paint, silicon steel paint, and anti-corona paint. Among these, anti-corona paint is typically reserved for high-voltage motors due to its specialized function. Impregnating paint is divided into solvent-based and solvent-free types. It is primarily used to coat motor windings—both stator and rotor—to fill gaps and micro-holes. After curing, it forms a smooth, continuous film that enhances the mechanical and electrical properties of the winding. The viscosity, flowability, solid content, drying time, and adhesion of impregnating paint all play a critical role in determining the overall performance of the motor. Enameled wire paint is applied to magnet wires, which are essential components in motor construction. This type of paint ensures proper insulation around the wire core. Motor manufacturers should pay close attention to the quality of enameled wire. Testing equipment such as continuity checks, peel tests, scratch resistance evaluations, and dielectric strength tests can help ensure the reliability and durability of the paint film. Covering paint is used to coat impregnated coils and insulation parts, forming a uniform protective layer that shields against mechanical damage, environmental factors, and chemical corrosion. It must dry quickly, adhere strongly, and form a hard, durable film with excellent moisture and oil resistance, as well as good electrical properties. Silicon steel paint is applied to silicon steel sheets, a key material in motor cores. Its purpose is to reduce eddy current losses and improve corrosion resistance. Once applied, the paint is dried at high temperatures for a short period. It should be thin, smooth, evenly distributed, and possess strong adhesion, hardness, and good electrical characteristics. Anti-corona paint is specifically designed for high-voltage motors. Corona discharge occurs when air becomes ionized in an uneven electric field, often near sharp edges or points. To prevent this, many manufacturers apply anti-corona paint to the ends of high-voltage windings after impregnation. This helps reduce electrical stress and improves the long-term reliability of the motor. By understanding the different types of insulation paints and their applications, engineers and manufacturers can make more informed decisions, leading to better-performing and longer-lasting motors. ----- Editor: Dalan Oil Pump Motor 02 - Procurement Consultant Copyright http://Dalan Motor. Please indicate the source.

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