Patent ID: 8138871
Filing Date: 2012-03-20
Classification: B23K,H01F,Y10T

Abstract:
1. A pole tube of a solenoid actuator comprising: three joining partners including: wherein a first and a second of the three joining partners are configured to be connectable to each other using electric fusion at a corresponding fusion joining region corresponding to one of the first and second joining regions, wherein the first joining partner includes a first material and the second joining partner includes a second material having a different conductivity than the first material, a resistivity of the first material being higher than a resistivity of the second material, wherein a respective end face at the fusion joining region of the second joining partner has a smaller cross-sectional area than a respective end face at the fusion joining region of the first joining partner, and wherein a respective part of the first joining partner disposed in the fusion joining region is configured to have an electrical resistance substantially equal to an electrical resistance of a corresponding part of the second joining partner disposed in the fusion joining region.