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Recycling of Copper/Brass Radiators
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English
Abstract
Scrap is an important source of copper. Of the total consumption of copper in the western world 1993, 12 473 000 t, the scrap content was 4 697 000 t or 38%. This is much more than the production of the largest copper mine. The use of scrap has long traditions. The metal can, with a fracture of the energy used for the original production, be refined to high purity.
Heat exchangers in scrapped cars are in many cases removed together with other valuable parts before the shredding operation. Copper is also separated during the treatment of the shredded car. It is important to avoid mixture of copper and steel. Today standard copper/brass radiator joined with lead/tin solder can be used for production of lead containing casting or extrusion ingots. If the metal is too mixed up a new refining can be done which gives as result pure metals.
Lead free copper/brass radiators are likely to be used more and more. Soft solder based on tin alloyed with copper, silver, antimony is one option. Another and more advanced is brazing using a CuNiSnP-alloy. Both these types of heat exchangers can go back to the melting shop for production of new tube strip. This will be a case where real recycling back into the same product is possible.
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Authors
Topic
Citation
Sundberg, R., "Recycling of Copper/Brass Radiators," SAE Technical Paper 960245, 1996, https://doi.org/10.4271/960245.Also In
References
- Metal Statistics 1993 Germany 1994
- Taylor, J.C. The Recycling of Non-Ferrous Metals Extractive Metallurgy of Copper, Nickel and Cobolt 1 TMS 1993 1199 1210
- Recycling of the Automobile Automotive Engineering 1993 10 42 44
- Jody, B.J. et al. Recovering Recyclable Material from Shredder Residue J of Metals 1994 2 40 43
- US Bureau of Mines
- Recycling of the Automobile Automotive Engineering 1992 10 41 57
- Glöckman, K. Recycling of Copper Copper 91 TMS Ottawa 1991
- Tapper, L. Sundberg, R. Miner, D. New Joining Methods for Copper/Brass Heat Exchangers SAE Techn Paper 931076 1993
- Sundberg, R. Tapper, L. Beal R.E. Melnyk, W. Optimized Brazed Copper/Brass Radiator I Mech E SAE C 496/051/95 1995
- Kamf, A. Tapper, L. Sundberg, R. Alloys for Brazing 1995
- Krumholz, P. Residual Copper Trends for Steels Advanced Materials & Processes 1995 5 39 40
- Günther, D. Metall 49 1995 3 199 201