Blueing treatment process for semi-processed electrical steel rotor or stator
A semi-process electrical steel, bluing treatment technology, applied in the direction of metal material coating process, coating, solid diffusion coating, etc., to achieve the effects of increased magnetic induction intensity, reduced iron loss, and low production cost
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Example Embodiment
[0013] In Example 1, the process flow of the present invention includes the following steps: burning oil → decarburization and stress relief annealing → bluing, and finally performing electromagnetic performance inspection, bluing layer appearance and thickness inspection.
[0014] The oil burning process is: heating the stator and rotor punching pieces that enter the oil burning furnace to a process temperature of 380-450°C to burn off the punching lubricating oil on the punching piece, purifying the surface finish of the punching piece, and avoiding the phenomenon of sticking of the punching piece. Ensure that the punch has the best insulation performance. The heating of the oil burning furnace is divided into two parts. One is to use the high temperature gas generated by the DX gas generator to heat the air through a heat exchanger, and then the heated air is sent to the bottom of the oil burning furnace through the insulation pipe; the second is to arrange electric heating rad...
Example Embodiment
[0021] Embodiment 2, the processing process of the present invention includes: the mother roll is divided into strips with a width of 294.00 (-0.10 / -0.20) mm on the slitting machine, and continuous punching on a high-speed punching machine to produce motor rotor and stator fragments , Bundle these rotors and stator pieces together, stator: 100 pieces / string (10.03kg), rotor: 150 pieces / string (9.90kg), note that the burr directions and marking openings of all punching pieces must be consistent, including annealing treatment And finally packed in a carton. The bundled punches need to be stacked neatly up and down in the annealing turnover iron box, and the inner holes of the punches are smooth up and down. Put it on the loading table of the continuous annealing furnace, first enter the oil burning furnace, burn off the stamping lubricating oil at 400°C, purify the surface of the punching sheet, improve the smoothness, and avoid the phenomenon of punching sheet sticking. Then in...
Example Embodiment
[0023] Example 3, the processing process of the present invention includes: the mother roll is divided into strips with a width of 332.00 (0 / -0.10) mm on a slitting machine, and continuous punching on a high-speed punching machine to produce motor rotor and stator fragments. Bundle these rotor and stator loose pieces, stator: 100 pieces / string (14kg), rotor: 150 pieces / string (14kg), note that the burr directions and marking openings of all punching pieces must be consistent, including annealing treatment and final assembly Carton. The bundled punches need to be stacked neatly up and down in the annealing turnover iron box, and the inner holes of the punches are smooth up and down. Put it on the loading table of the continuous annealing furnace, first enter the oil burning furnace, burn off the stamping lubricating oil at 400℃, purify the surface of the punching sheet, improve the smoothness, and avoid the phenomenon of punching sheet sticking. Then under a controlled atmosphe...
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