THERMOPROCESSING PLANTS AND EQUIPMENT ... FOR COPPER EXTRUSION PLANTS

I Otto Junker GmbH Established in 1924, OTTO JUNKER GmbH draws on more than 90 years of experience and continuous product development. The company is represented by subsidiaries, service agencies and sales offices all over the world. The product range embraces melting, casting, heating and heat treating equipment for the aluminium and copper industries as well as melting and casting equipment for iron and steel foundries. Beyond that, the in-house special-steel foundry in Lammersdorf produces finish-machined castings ready for installation. Since 1982, the company has been owned by the OTTO JUNKER...

I Tailor-Made Innovations The guiding principle of our company‘s founder, Dr.-Ing. E. h. Otto Junker, applies more than ever today: “Identifying all problems without bias, finding the solution through joint scientific and practical enterprise, and supplying the result to the customer in the form of quality products. “ Achieving this goal necessarily involves a number of success factors: First and foremost among these is our workforce - about 450 skilled, experienced and highly motivated employees, plus about 25 technical and commercial apprentices every year, who excel at their diverse duties...

OTTO JUNKER is the leading supplier of continuous roller hearth annealing furnace lines for the heat treatment of copper and copper based alloys under protective atmosphere. Many of the world‘s major and well-known manufacturers are customers of OTTO JUNKER. OTTO JUNKER roller hearth furnaces operate on the proven principle of high-convection. OTTO JUNKER offer two different types of roller hearth furnaces: ■ Jet-heating systems ■ Mass-flow systems The Jet-heating furnace type is characterized by an extremely high air velocity which makes for an even more intense heat transfer. It is therefore...

Mass-Flow furnaces rely on a "soft” high-convection process and are particularly well suited for multi-layer products (LWC coils and material to be annealed in bundled form). The proven space-saving configuration is the stack furnace in which multiple loads are annealed while stacked one above the other. The main characteristics of a mass-flow furnace, apart from its high atmosphere circulation rate and the resulting intense heat transfer, are the defined flow pattern and a uniform furnace chamber temperature which exceeds the material temperature by just a few Kelvin. In addition, stack furnaces...

CTP (Copper Tube Purging System) Most mass-flow furnaces supplied by OTTO JUNKER are equipped with our Copper Tube Purging System (CTP). This OTTO JUNKER tube purging technology ensures clean, high-quality copper tubes by flushing out the oil vapours that will typically form inside tubular material during the heating process. As a result, carbon deposits on the interior surfaces of the tube will be reduced significantly. Studies have shown that with an OTTO JUNKER tube purging system, much less carbon and oil residue will usually remain present on interior tube surfaces when compared to a system...

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