The stacking of iron laminations is a critical process in the manufacturing of electromagnetic equipment. Through orderly arrangement and compaction, this process enhances the overall density of the core, directly impacting electromagnetic conversion efficiency and operational stability. Prior to stacking, laminations must undergo surface cleaning to remove burrs and impurities while preserving the integrity of the insulation coating to prevent interlayer short circuits and increased losses. The laminations are arranged in a staggered pattern to offset joints, thereby minimizing magnetic circuit gaps and improving the continuity of magnetic flux conduction.
The stacking process relies on specialized tooling for positioning to control overall dimensions and geometry, preventing tilting, misalignment, or uneven tension. Uniform pressure is applied to ensure close contact between layers, reducing voids and increasing the stacking factor. The tightness of the stack is directly related to the equipment's operating condition; excessive looseness increases magnetic reluctance and no-load losses, causing vibration and noise, while over-compression can damage the insulation layer and compromise dielectric strength.
A rational stacking process balances density with insulation performance, maintaining the structural stab
ility of the core. Upon completion, the assembly undergoes overall calibration and fastening to prevent loosening or displacement during service. A standardized stacking workflow optimizes electromagnetic performance, reduces heat generation, and extends the equipment's service life.
