1. Slitting and cutting.
In the past, amorphous materials were cut in a straight line. Around 2015, some manufacturers have started the application of relevant prototypes. The principle is to cut the amorphous strip in a straight line according to the designed core section, which is somewhat similar to the section of our laminated step core, which can be met by conventional amorphous straight-line cutting equipment.
At present, enterprises mostly use oblique line cutting, which is very similar to the oblique line cutting process of three-dimensional silicon steel.
The opening is divided into: single sheet opening, single sheet amorphous strip opening efficiency is very low, which is suitable for closing; 5 opening material, suitable for opening.
2 closed winding.
It is recommended to use lying down winding, and make multiple groups of 120 ° inclined tooling at the same time. Place an iron sheet on each tooling to facilitate the separation of the iron core after dipping paint. Use the weight and tooling to form a 120 ° inclined plane, and the winding speed cannot be too fast.
At the same time, the discharging should be slightly higher than that of the winding equipment, because the single sheet winding has extremely low efficiency. Based on the 200KVA transformer core, about two-thirds of a three-dimensional core can be wound in one day, that is, two pieces can be completed. Because the amorphous alloy is very thin, about one tenth of the thickness of the oriented silicon steel sheet, the single sheet winding time is about ten times that of the silicon steel sheet, the amorphous alloy steel strip can not be stressed, the winding tension can not be too large, and the processing is very difficult.
The open structure can be cut by the existing amorphous transverse shear line, and some open silicon steel sheets are used as the internal support framework, which can greatly increase the mechanical strength.
Amorphous annealing is very different from silicon steel sheet annealing. Three dimensional amorphous needs to be annealed with tooling and connected with DC between core windows.
4 split dip paint.
After annealing, dip paint together with the tooling, or brush glue. The effect of dip paint is better, because it can increase the strength, and the opening structure can only brush glue.
5 assemble the three single frame amorphous iron cores after split dipping paint on a smooth operation platform with good flatness. It is best to use the operation platform of fitter.
6 after assembly, bind the core column, half fold the shrink band for two layers, and then dip paint or apply glue as a whole. Because it has been dipped in paint before, you can apply glue twice. After drying and fixing, a complete three-dimensional amorphous iron core is made. If it is an open structure, it can not be dipped in paint, but can only be applied with glue.