| 摘要 |
ELECTRIC IMMERSION HEATING APPARATUS AND METHODS OF CONSTRUCTING AND UTILIZING SAME An electric immersion heating apparatus is provided which includes a first tubular electrode which holds a semiconductor substance each as glass or borate lithium oxide therein. Immersed in the semiconductor is at least one other second electrode whose polarity differs from the polarity of the first electrode. The electric current passing through the electrodes heats up the semiconductor material whose heat is thermally transferred through the first electrode into a material, such as aluminum, to be melted. The first electrode may constitute a graphitic ungrounded casing. The heated semiconductor or liquid resistor maintains a uniform temperature, and uniformly transmits heat. The apparatus makes practical 100-200 kilowatts per square foot of surface area times 3-4 feet of immersion depth. |
