Brief introduction of water-cooled cable for medium frequency electric furnace

Huaxin Electric Furnace is one of the excellent induction furnace manufacturers in China. After nearly 30 years of production practice, the following rules have been summarized:

The water-cooled cable in the medium frequency electric furnace is a special cable connecting the medium frequency power supply and the induction coil. Because the inside of the cable can pass water to achieve the effect of cooling and cooling, it is called a water-cooled cable. Although the water-cooled cable used in the medium frequency electric furnace is also carrying current, its internal structure is different from that of ordinary cables.

The water-cooled cable used in the medium frequency electric furnace is composed of electrodes, copper-stranded wires, insulating hoses, water nozzles, and stainless steel hose clamps. The electrode is made of copper rods and is connected to the copper stranded wire for cooling. The insulating rubber tube is sleeved outside the copper-stranded wire and fastened to the electrode with a hose clamp. The electrode is equipped with a water nozzle, and the cooling water passes through the water nozzle on the electrode. Enter the inside of the insulating rubber tube to cool the copper-stranded wire to achieve the purpose of overcurrent.

1. The cross-section of the water-cooled cable in the medium frequency electric furnace is in the range of 25 to 500 square millimeters and the length is in the range of 0.3 to 20 meters. When the cross-section is not enough, multiple parallel connections are often used. When the water-cooled cable is too long, it also meets the standard, but the loss, when it is energized, will be very large, which does not meet the energy-saving requirements.

2. The insulating rubber tube of the water-cooled cable in the medium frequency electric furnace is made of carbon-free high-quality rubber tube, with a water pressure resistance of 0.8MPa and a breakdown voltage of not less than 3000V. Special requirements must use flame-retardant hose sleeves.

3. The electrode of the water-cooled cable in the medium frequency, the electric furnace is made of T2 copper and the selection standard refers to JB/T10358-2002 "Water-cooled cable for industrial electric heating equipment"

4. The water-cooled cable in the medium frequency electric furnace has strict requirements on the cooling water quality to ensure the cooling effect and the life of the water-cooled cable.

5. The copper-stranded wire of the water-cooled cable in the medium frequency electric furnace is cut from multiple strands of copper-stranded wire. The more strands of copper stranded wire, the softer the water-cooled cable, and of course the higher the price.