TH32071B - Gap electric chokes - Google Patents

Abstract

The DC60 (25/02/53) electric chokes have a magnetic core with a diffuse gap. The magnetic core consists of a metal alloy that rapid hardening of steel The formation of the scattered space pattern is created by baking. ductile, which will crystallize into part of the Amorphos alloy. As a result of annealing, the magnetic core has permeability in the 100 to 400 range, low core losses (less than 70 W/Kg at 100 kHz and 0.1T), and excellent DC bias. (At least 40% of the initial permeability is maintained at a DC bias field of 3980 A/M or 50 Oe). The chokes have a magnetic core with a diffuse gap. The magnetic core consists of a metal alloy that rapid hardening of steel The formation of the scattered space pattern is created by baking. ductile, which will crystallize into part of the Amorphos alloy. As a result of annealing, the magnetic cores have permeability in the 100 to 400 range, low core losses (less than 70 W/Kg at 100 kHz and 0.1T), and yased. Excellent DC (at least 40% of initial permeability is maintained at 3980 A/M or 50 Oe DC bias field).

Claims (9)

1.Method for constructing a magnetic core electromagnetic choke containing a metal alloy. Iron-based amorphos have a scattered space. Consists of the steps of Choke baking in a protective atmosphere at temperature And selected time For that alloy The amorphous metal of the core is partially crystallized in excess of 10% of its volume and has an infusion of 100 to 400 at 10 kHz. 2. Method As described by claim 1, the amorphous alloy is Fe80 B11Si8, the annealing temperature is 425? C and the annealing time is approximately 6 to 8 hours. 3. Method As described by claim 1, the amorphous alloy will be Fe80 B12Si8, the annealing temperature is 455? C and the annealing time is approximately 4 h. 4. Method as described by any of the 1st to 3rd claim. Sticky baking process Will be induced with the absence of a magnetic field 5. Method as described by any of the 1st to 3rd claim. Temperature is controlled To be within about 2-5 degrees centigrade during the baking process. 6. Method As described by claim 5, the baking process is done in the oven. Bringing the heat right into the box 7.Method as described by one of Claims 1 to 6. Temperature and time will be Select to crystallize the amorphous metal alloy approximately 10 to 25% of the volume. 8.Method as described by one of Claims 1 to 7. The reaction will be Selected so that partial crystallization will cause formation of Fe and Fe2 crystals within. 9. Any of the methods described by Claims 1 to 8. Consists of steps The core is coated with some high temperature resin. Which will be the electrical insulation of the core and keep the core stable 1 0.Electric chokes built in accordance with one of the trajectories mentioned in Claims 1 to 9.