A practical approach to continuous casting of copper-based by Robert Wilson PDF

By Robert Wilson

ISBN-10: 1861250991

ISBN-13: 9781861250995

ISBN-10: 1907747435

ISBN-13: 9781907747434

Contiuous casting of non-ferrous metals has been practiced for good over a hundred years. the method has many merits over static ingot and booklet mold casting, an important being enhanced yield, decreased power intake and aid in manpower, with a consequent aid in fee. This e-book offers an account of ways non-stop casting has built and the way the method can be utilized inside an engineering surroundings for casting quite a lot of copper-based alloys and valuable metals, together with gold and silver, and chosen nickel alloys.

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Manufacturers of casting equipment generally have their own proprietary specification. The material is either CuAg or CuCrZr. The copper cooler plates are ground flat to ensure mating with the ground graphite surface. It is essential that as close to 1000/0 copper-graphite contact is achieved otherwise heat transfer will be drastically impaired. 12, nitrogen protection within the 'air gap' is provided. It is recommended this is used in all continuous casting die construction. At or close to the solidification front the ingot shrinks away from the die forming the 'air gap'.

4 Temperature Control Thermocouples are positioned within the furnace system and by using microprocessor control the melt temperatures and temperatures close to the die position are generally controlled within a band of ±soC. The degree of melt temperature control and stability is essential to ensure a consistent quality product. 9. The full range of Rautomead graphite resistance heated furnaces are to this basic design ranging from small 'table top' units to installations with crucible capacity of 2500 kg (copper).

43 SINGLE ROD Continuous casting of Copper-Based Alloys and Precious Metals used, and as would be expected a 'thermally turbulent' zone is created, resulting in poor heat transfer from the inner surfaces of the rods. In horizontal casting the resulting oval-shaped isotherm exaggerates defects such as hot tearing, and in tin bronzes inverse segregation tends to be more pronounced on the inner surfaces. Jacket-cooled dies are limited to slower casting speeds. In probe-cooled dies heat transfer is predominantly axial.

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A practical approach to continuous casting of copper-based alloys and precious metals by Robert Wilson

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