Folded Core Requiring No Secondary Annealing

The folded core requiring no secondary annealing is a product improved through process optimization. Traditional folded cores usually need a secondary annealing step after forming. This step relieves internal stress. However, we have eliminated this step by optimizing our material selection and bending parameters. This approach shortens our production cycle. It also avoids the potential damage that high-temperature annealing can cause to the silicon steel's insulation coating. We use high-permeability grain-oriented silicon steel coils from Baowu and Ansteel. These materials have good processing properties. They are well-suited for our no-annealing process. Our folded core requiring no secondary annealing is a smarter choice.

Our company has 26 years of practical experience in core manufacturing. We developed this no-secondary-annealing process through years of production exploration. We now apply this process to cores for single-phase distribution transformers, dry-type transformers, and reactors. Our technical team tests the elongation and yield strength of each silicon steel coil batch. This helps us determine the optimal bending speed and pressure parameters. This level of control ensures that the internal stress inside the folded core is evenly distributed. There is no need for annealing to release stress. Our folded core requiring no secondary annealing is the result of continuous improvement.

Precision Equipment for Consistent Results

Our production equipment strongly supports this process. All 15 shearing lines are CNC-operated. They precisely control the cutting length and angle of each silicon steel sheet. For the bending operation, we use specially designed high-precision bending machines. These machines ensure that there are no wrinkles or cracks at the folded corners. Our quality inspectors perform hardness sampling and magnetic performance tests on each batch. This verifies the consistency and stability of the no-annealing process. All test data is recorded for quality traceability. Our folded core requiring no secondary annealing delivers consistent quality.

Shorter Lead Times and Competitive Pricing

The no-secondary-annealing process saves energy and reduces production time. Our standard lead time is 10 to 15 days. For repeat orders, we can shorten this further. This process also lowers our production costs. We pass some of these savings on to you. This gives you a more competitive price. We believe that continuous technical improvement creates value for our clients. It also strengthens our own market position. Choose our folded core requiring no secondary annealing for efficiency and value.