Silicon carbide rod installation and matters needing attention
When silicon carbide rods are used, each group of rods should be matched with resistance. The resistance tolerance of the resistance matching is: ≥￠ 12mm rod matching resistance, resistance value tolerance ≤ 0.2 Ω ≤￠ 8mm rod matching resistance, resistance value tolerance ≤ 0.5 Ω
• During the use of silicon carbide rods, the resistance value increases with the use of time. This phenomenon is called aging. The aging of the rod will cause the furnace temperature to decrease. For normal use, the voltage can be appropriately increased or the wiring method can be changed to compensate the furnace temperature.
• When power is supplied, the voltage should be gradually increased. Generally, the voltage should be half of the rated voltage at the beginning to prevent the temperature from rising too fast. Avoid overloading when powering on.
• Silicon carbide rods are best used continuously, and continuous use can increase the life of the rods.
• Silicon carbide rods are hard and brittle, so be careful when loading, unloading, and transportation.
• The silicon carbide rod should be placed in a dry place to prevent deterioration of the aluminum head by moisture.
• The heated workpiece should not contain excessive moisture and should be dried in advance to avoid affecting the life of the rod. If it is a new kiln or a kiln that has not been used for a long time, old rods must be used for kiln drying, and new rods must not be used for baking kilns.
• When silicon carbide rods are used in hydrogen, the rods will become brittle and shorten their life.
• Silicon carbide rods will corrode in contact with alkali metals, alkalis, silicates, borides, etc., so avoid contact with them.
• The silicon carbide rod terminal clamp should be in close contact with the aluminum head at the cold end of the rod body.
• During use, if the silicon carbide rod is broken or white burned, replace it with a new rod in an emergency. So as not to affect the service life of other rods.
• For electric furnaces using silicon carbide rods for the first time, if the rods are broken after a period of time, they should be replaced as a whole. The replaced old rods are used to replace broken rods in future use. When replacing, choose a rod with similar resistance to the broken rod for replacement.
• When installing the silicon carbide rods, they should not be in contact with the insulation material, and should be separated by high-temperature insulated porcelain pipes. In order to avoid arcing due to leakage, causing the wall to melt
• During the use of silicon carbide rods, the resistance value increases with the use of time. This phenomenon is called aging. The aging of the rod will cause the furnace temperature to decrease. For normal use, the voltage can be appropriately increased or the wiring method can be changed to compensate the furnace temperature.
• When power is supplied, the voltage should be gradually increased. Generally, the voltage should be half of the rated voltage at the beginning to prevent the temperature from rising too fast. Avoid overloading when powering on.
• Silicon carbide rods are best used continuously, and continuous use can increase the life of the rods.
• Silicon carbide rods are hard and brittle, so be careful when loading, unloading, and transportation.
• The silicon carbide rod should be placed in a dry place to prevent deterioration of the aluminum head by moisture.
• The heated workpiece should not contain excessive moisture and should be dried in advance to avoid affecting the life of the rod. If it is a new kiln or a kiln that has not been used for a long time, old rods must be used for kiln drying, and new rods must not be used for baking kilns.
• When silicon carbide rods are used in hydrogen, the rods will become brittle and shorten their life.
• Silicon carbide rods will corrode in contact with alkali metals, alkalis, silicates, borides, etc., so avoid contact with them.
• The silicon carbide rod terminal clamp should be in close contact with the aluminum head at the cold end of the rod body.
• During use, if the silicon carbide rod is broken or white burned, replace it with a new rod in an emergency. So as not to affect the service life of other rods.
• For electric furnaces using silicon carbide rods for the first time, if the rods are broken after a period of time, they should be replaced as a whole. The replaced old rods are used to replace broken rods in future use. When replacing, choose a rod with similar resistance to the broken rod for replacement.
• When installing the silicon carbide rods, they should not be in contact with the insulation material, and should be separated by high-temperature insulated porcelain pipes. In order to avoid arcing due to leakage, causing the wall to melt