Fine work in the manufacturing process of single-phase transformers

In the precision manufacturing process of single-phase transformers, each step carries strict requirements on the performance and quality of the final product. Among them, the deburring of the edge of the silicon steel sheet after cutting is a key fine operation in the manufacturing process, and its importance is self-evident.

Silicon steel sheet: the cornerstone of transformer core construction
Silicon steel sheet, with its excellent magnetic conductivity and extremely low loss characteristics, has become the preferred material for transformer core manufacturing. In the production process of single-phase transformers, silicon steel sheets are first precisely cut to meet the specific requirements of core design. However, edge burrs are inevitable during the cutting process. If these tiny protrusions are not processed, they will have an adverse effect on the subsequent core stacking and the overall performance of the transformer.

Deburring: the core link of fine process
The deburring of the edge of the silicon steel sheet after cutting is to eliminate these potential hidden dangers. The main purpose of this step is to completely remove the burrs on the edge of the silicon steel sheet to reduce the additional friction caused by the burrs during the core stacking process and reduce the electromagnetic noise that may be caused by it. Specifically, the benefits of deburring include but are not limited to:
Optimizing the efficiency of iron core stacking: After removing the burrs, the edges of the silicon steel sheets are smoother, making the core stacking process smoother and reducing the difficulty and time cost of assembly caused by friction resistance.
Reducing the level of electromagnetic noise: Burrs are not only physical protrusions, but also may become a scattering source of electromagnetic waves. Through deburring, this scattering effect can be effectively reduced, thereby reducing the electromagnetic noise of the transformer and improving the quietness of the operating environment.
Improving the stability of iron core performance: The presence of burrs may also affect the flux distribution and hysteresis characteristics of the iron core, thereby affecting the overall performance of the transformer. Deburring can ensure the flatness and consistency of the edges of the silicon steel sheets, thereby improving the performance stability and reliability of the iron core.
Extending the service life of the transformer: During long-term operation, burrs may aggravate the wear and corrosion between the silicon steel sheets, posing a threat to the service life of the transformer. Deburring can reduce the risk factors of such wear and corrosion, thereby extending the service life of the transformer.

Rigorous process control and quality assurance
In order to ensure the effect and quality of deburring, single-phase transformer manufacturers usually adopt a series of advanced process control methods and strict quality inspection methods. This includes but is not limited to the selection of appropriate deburring tools, precise control of deburring parameters, and strict quality inspection. Through these measures, manufacturers can ensure that each silicon steel sheet meets the optimal edge smoothness requirements before entering the core stacking stage.

Deburring the edges of the cut silicon steel sheets is an indispensable and crucial delicate operation in the manufacturing process of single-phase transformers. It not only affects the efficiency of core stacking and the electromagnetic noise level of the transformer, but also directly affects the overall performance and service life of the transformer. Therefore, in the manufacturing process of single-phase transformers, it is necessary to attach great importance to and strictly implement the process control and quality assurance measures of this key step.