By Robert Wilson
Contiuous casting of non-ferrous metals has been practiced for good over a hundred years. the method has many benefits over static ingot and e-book mildew casting, crucial being superior yield, diminished power intake and aid in manpower, with a consequent relief in price. This publication presents an account of the way non-stop casting has constructed and the way the method can be utilized inside an engineering atmosphere for casting quite a lot of copper-based alloys and invaluable metals, together with gold and silver, and chosen nickel alloys.
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Extra info for A practical approach to continuous casting of copper-based alloys and precious metals
When designing withdrawal equipment the total torque requirement is a critical factor. The displacement over a given pulse length in time and distance must remain constant independent of the increasing load as the mass of ingot beyond the withdrawal rolls increases. Strip casting plants requiring high traction forces to counteract in-line forces caused by runout track resistance, milling equipment, travelling shear, coiler and die resistance, use hydraulic amplified drives to achieve the forces required.
On assembly careful graphite die surfaces is essential to ensure good barrier effect between die and cooler. The large in mild steel. (6) Insulation on cooler outer surfaces The outside surfaces of the cooler are insulated using a refractory such as alumina silicate sheet 'trade name fiberfax'. 9, it will be noted that in the normal furnace assembly the die and cooler are contained within the furnace casing, therefore adequate insulation is essential to limit heat losses from the furnace. (7) 'Grafoil sealing gasket' A 'grafoil' sealing gasket is fitted between die hot end face and the crucible die seal face.
1, the solidification profile in vertical continuous casting is highly symmetrical, whereas in horizontal casting there is always a degree of asymmetry. Owing to the weight of metal, better contact is maintained on the bottom surface of the mould in the horizontal mode. Methods of adjusting to improve asymmetry are discussed in later sections. 4 MANIPULATION OF HEAT TRANSFER IN THE REGION h. Casting conditions, including die and cooler design and withdrawal parameters, have a marked effect on heat transfer within the die assembly.
A practical approach to continuous casting of copper-based alloys and precious metals by Robert Wilson