Temperature-field simulation of the cast-rolling nozzle of 3 xxx aluminum alloy
The finite element method was used for Hunter casting nozzles.The simulation with production parameters show W-shaped temperature curves at the nozzle outlet.The test with thermocouples embedded in the nozzle front edge verifies the validity of the temperature field simulation.The subsequent research was carried on the effects of cast-rolling speed,cast-rolling temperature,spoiler structure,heat dissipation conditions,and strip width on the temperature field of aluminum alloy cast-rolling.The results indicate that the cast-rolling speed influences the temperature field in two stages.When the casting speed is less than 0.046 5 m/s,the temperature field at the nozzle front edge is V-shaped,and the tempera-ture uniformity is not improved obviously.When the casting speed is in the range of 0.046 5-0.1 m/s,the temperature field at the nozzle front edge is W-shaped,and the temperature uniformity is better.It is found that increasing the cast-rolling temperature can improve the temperature of the flow field inside the casting nozzle,but has little effect on the uniformity of the temperature field.The research provides important references for improving the shape of spoiler structure and determining production process parameters.
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