Coating method of oil-immersed amorphous alloy transformer core

Abstract

The invention discloses a coating method of an oil-immersed amorphous alloy transformer core. The coating method comprises the following steps: (1) matching glue, and fully stirring and mixing the glue and a diluting agent according to a proportion of 10-12:1 to form mixed glue solution; (2) cleaning chips on the surface of the core by using a steel brush; (3) dipping the brush with sufficient mixed glue solution, and uniformly brushing on the top surface of the core in three steps; (4) feeding the core into a tunnel drying furnace; (5) turning over the core to face the bottom surface of the core upward, dipping the brush with sufficient mixed glue solution and uniformly brushing on the bottom surface of the core in three steps; (6) feeding the core into the tunnel drying furnace; (7) fixing the core through adhesion of an adhesive tape, and storing for over 12 hours to finish the coating of the core. According to the method, the mixed glue solution which is formed by fully mixing the glue and the diluting agent is coated, so that the permeability is better, the core can be effectively cured into a whole body, the problems such as peeling, cracking and loosening of the core are avoided, the core chips are greatly reduced, and the reliability of a product is improved.

Description

Technical field: [0001] The invention relates to an oil-immersed amorphous alloy transformer core coating method. Background technique: [0002] Oil-immersed amorphous transformer core manufacturing is divided into four processes: forming, annealing, stress relief and coating. The coating process is commonly known as surface gluing process. Powder coating and coating process have been used as insulation for motor rotor cores for a period of time. up. It has the advantages of excellent anti-corrosion performance, insulation performance, high material utilization rate, and basically no pollution. Generally, the painting process is used to solve the rust prevention problem, and when the iron core is used for body assembly, the iron core is prone to layering, cracking, and looseness, resulting in a large assembly size. After assembly is difficult, the iron core is squeezed to produce a large amount of iron core debris. In severe cases Even cause the transformer to burn out. ...

AI Technical Summary

Problems solved by technology

Generally, the painting process is used to solve the rust prevention problem, and when the iron core is used for body assembly, the iron core is prone to layering, cracking, and looseness, resulting in a large assembly size. After assembly is difficult, the iron core is squeezed to produce a large amount of iron core debris. In severe cases Even cause the transformer to burn out