Copper Continuous Casting Machine for Tin Phosphors Bronze Strip Billet Production and Precisio

Up Ward Continuous Casting Machine is a new technology to produce oxygen free copper rod, tube, and flat billet at a rewet length. Its production of oxygen free copper rod and profiles and featured with high conductivity and low oxygen content. Compare with some traditional technology. This new method is lower in capital investment, easy to operate with, economic in producing. high qulity in production, flexible in changing production size no pllution to eviroment.

Copper cathode (panel) →induction furnace(copper melt→reduction→molten copper holding)→casting mechanism casts rod (copper crstalize and become solild)→Take-up→Sale productionor for further process.

Burdening (Returns should be baled) → Smelting furnace → Chemical analysis → Heating up the sealed launder → Crystallizer → Primary cooling → Secondary cooling → Withdrawal machine → Shearing machine →Coiler

Select the raw materials according to process document, determine the feeding procedure according to melting points of metallic elements, furnace burden proportions, and difficulty of oxidation burning losses, and charge the raw material into the smelting furnace; When smelting, add certain thickness of covering agent into the furnace, which shall be supplemented in-time; When the molten copper inside the furnace reaches tapping temperature, lab-test the composition of molten copper inside the furnace; Before tapping, completely clean out the clinkers in molten copper; After the tapping of each furnace, keep around 800 kg molten copper inside the furnace, as the starting block. Transfer the molten copper (molten and well-adjusted in the melting chamber) through the sealed launder into the holding furnace, control the temperature of molten copper, keep the molten copper inside the holding furnace at the casting temperature and at certain level range. Under the action of level, the molten copper flows into the crystallizer, and get crystallized into plate-type copper billet through primary cooling by crystallizer. Under the continuous drawing by withdrawal machine, the plate billet of required shape is formed. Secondary cooling system is installed at plate billet outlet, and the flow rate of cooling water is adjustable. The main purpose for adopting these control measures is to ensure crystallization temperature as well as stabilization of process parameters, so as to ensure product quality. The withdrawal of strip billet is realized by means of the dragger, and the time of drawing, stop and reverse pushing by the dragger is continuously adjustable. The optimal control parameter should be determined and timely adjusted according to different materials, different specifications and surface quality conditions. The drawing is controlled by PLC program, realizing cyclical actions of drawing, stop, and reverse pushing.

• Production variety:copper base alloy(Cu-Ni) strip

• 2.1 Number of billets: 1 strips
• 2.2 Billet width: 380mm-500mm
• 2.3 Billet thickness: 60mm
• 2.4 Inside diameter of coil: minimum Φ 600- 800mm
• 2.5 Outside diameter of coil: maximum Φ1800mm
• 2.6 Maximum weight of coil: max: 6000kg

• 3.1 Transverse thickness difference of billet: ＜0.75mm—0.3 (After mould modification)
• 3.2 Longitudinal thickness difference of billet: <0.3mm (After mould modification)
• 3.3 Average energy consumption for smelting by smelting furnace: 250-380kwh／t
• 3.4 Average energy consumption for temperature preservation by holding furnace: 50-80kwh/t
• 3.5 Maximum pushing and drawing force: 50KN
• 3.6 Pushing and drawing speed range: 1.5-70mm/ sec
• 3.7 Average maximum casting speed: 300mm／ min
• 3.8 Maximum shearing force of hydraulic shear: 600KN
• 3.9 Coiling speed of coiler: 750mm／min

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