The motor winding is dirty in the motor.The lifespan and operational reliability of a motor mainly depend on the manufacturing quality of the winding and the influence of electromagnetic operation, mechanical vibration, and environmental factors. To ensure the manufacturing quality of motor windings, it is necessary to correctly grasp the technical essentials, technical parameters, and technical knack of winding manufacturing, winding installation, and insulation treatment.
The reliability of welding quality is an important process in ensuring the manufacturing quality and technical standard of windings during the production and processing of electric motors.
The winding inside the motor requires the use of enameled wire, which is usually made of copper or aluminum wire with a painted surface. The two types of enameled wire are round wire and flat copper line. The manufacturing of motor windings mainly involves the welding of single and multiple enameled wires, as well as the welding of multiple enameled wires and outgoing wires. Traditional welding methods include tin welding, butt welding, and oxyacetylene flame brazing.
Tin welding is suitable for two small diameter enameled wire, but its disadvantages include:
1. Need to remove paint, which consumes labor hours. Paint remover is a highly corrosive solution that is harmful to human health and the environment.
2. The melting point of tin is low, and tin soldered products cannot be used for long-term and high-temperature environments, which can easily cause detachment.
3. During the tin melting process, strong odors and smoke will be generated.
The second traditional welding method is butt welding, which mainly involves welding less than 20 pieces enameled wires, with its disadvantages:
1. Need to remove paint.
2. Due to only welding the surface of the end of the enameled wire, it is not easy to penetrate and may cause false soldering.
3. There is strong light during welding, which can harm the eyes of workers.
4. It Consumes carbon rods.
The third traditional welding method is oxyacetylene flame brazing, which is used for large diameter enameled wire welding, with disadvantages:
1. Oxyacetylene is a stored high-pressure gas cylinder with the risk of explosion.
2. After one bottle is consumed, it requires working hours to replace it.
3. High pressure storage of gas cylinders requires special storage areas, which is inconvenient.
4. The combustion of acetylene has black smoke and a strong smell.
The last new welding process is oxyhydrogen flame enameled wire welding, which is similar to oxyacetylene welding and has the following advantages:
1. Oxy-hydrogen gas is produced and used on-site. It is not stored, ensuring safety.
2. Oxy-hydrogen gas is produced by electrolysis of water, and after combustion, it generates water vapor, which is not harmful to human health and environmentally friendly to the environment.
3. The flame temperature is up to 2800 degrees Celsius. The welding speed is fast, welder joint is strong and there is no false welding.
4. No need to remove paint.
5. Easy operation with the function of water shortage and fault alarm.
6. The flame is stable and can be for 24-hour uninterrupted work.
