Device for measuring surface flow field of molten steel in crystallizer based on current change
A measuring device and a technology for current change, applied in the field of iron and steel metallurgy and steelmaking, can solve the problems of difficulty in measuring the change of the molten steel flow field of the mold, and achieve the effect of ensuring accuracy
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[0034] Example 1
[0035] combine Figures 1 to 3, a device for measuring the surface flow field of molten steel in a mold based on current changes in this embodiment includes a pin 4, an ammeter 5, a power supply 7, a pin fixing plate 8 and a voltmeter 10, and the pin 4 is vertically fixed In the pin fixing plate 8, the pin 4 is in the shape of a cylinder. The pin 4, the ammeter 5, the power supply 7 and the mold copper plate 2 are respectively connected in series by wires, and the voltmeter 10 is connected in parallel with the pin 4. The plug 4 is composed of a resistor 41 and a refractory material 42. The resistor 41 is equally distributed along the inner surface n of the cylinder of the refractory material 42. In this embodiment, the value of n is 8. The ammeter 5 is connected to the resistor 41 through a wire. 5 is composed of a first ammeter 51, a second ammeter 52, a third ammeter 53, a fourth ammeter 54, a fifth ammeter 55, a sixth ammeter 56, a seventh ammeter 57, an...
Example Embodiment
[0045] Example 2
[0046] The basic content of this embodiment is the same as that of Embodiment 1, the difference is that: the plug 4 further includes a heating member 43, the heating member 43 is cylindrical, and is arranged inside the cylinder of the plug 4, and the heating member 43 is a silicon molybdenum rod for heating or electromagnetic heating such as Figure 5 As shown in the figure, the heating temperature of the heating element 43 is consistent with the temperature of the molten steel 1 during use. The temperature field around the nail 4 changes sharply, which leads to a change in the flow field, and the original temperature field and flow field are kept unchanged to the greatest extent, so as to achieve the accuracy of the measurement.
[0047] The method and steps of the method for measuring the flow field change of the molten steel 1 in the mold based on the current change of the present embodiment are basically the same as those in the embodiment 1. The differ...
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