Patent ID: 6012219
Filing Date: 2000-01-11
Classification: B22F,B29C,B29L,H01F,Y10T

Abstract:
A method for making electronic parts including a conductive material arranged in a magnetic material, comprising the steps of:supplying a conductive material enclosed by removable material to a guide sleeve of an extruding means having a delivery portion shaped to form a hollow core;simultaneously charging pasty magnetic material to said extruding means about said guide sleeve and extruding said magnetic material with said conductive material embedded therein to form an intermediate;sintering said intermediate to form a sintered material;removing said removable material by application of heat during said sintering step to produce a gap between said conductive material and said magnetic material defining a hollow core in said magnetic material of different shape than that of said conductive material wherein said magnetic material contacts said conductive material at only spaced points thereabout.