The Resistance and Strength of Soft Solder Splices Between Conductors in MICE Coils

Author

Wu, H. ; Pan, H. ; Green, M.A. ; Dietderich, D. ; Gartner, T.E. ; Higley, H.C. ; Mentink, M. ; Tam, D.G. ; Xu, F.Y. ; Trillaud, F. ; Liu, X.K. ; Wang, L. ; Zheng, S.X.

Author_Institution

Inst. of Cryogenics & Superconductive Technol., HIT, Harbin, China

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1738

Lastpage

1741

Abstract

Two of the three types of MICE magnets will have splices within their coils. The MICE coupling coils may have as many as fifteen one-meter long splices within them. Each of the MICE focusing coils may have a couple of 0.25-meter long conductor splices. Equations for the calculation of resistance of soldered lap splices of various types are presented. This paper presents resistance measurements of soldered lap splices of various lengths. Measured splice resistance is shown for one-meter long splices as a function of the fabrication method. Another important consideration is the strength of the splices. The measured breaking stress of splices of various lengths is presented in this paper. Tin-lead solders and tin-silver solders were used for the splices that were tested. From the data given in this report, the authors recommend that the use of lead free solders be avoided for low temperature coils.

Keywords

solders; splicing; superconducting coils; superconducting magnets; MICE coupling coils; MICE magnets; conductors; soft solder splices; Coils; Conductors; Electrical resistance measurement; Mice; Resistance; Stress; Superconducting magnets; Splice resistance; splice strength;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2087371

Filename

5643122