Precautions For The Use Of Silicon Carbide Rollers

The electric heating elements of box-type resistance furnaces often use silicon carbide rollers, molybdenum disilicide or metal alloys. Fast melting can shorten the melting time, increase the productivity, and ensure the quality of the melt. Space vacuum and missing scenes make any liquid lubricant used on the ground vaporize in an instant, while solid materials such as molybdenum disulfide are electroplated or deposited on the movable structure to achieve lubrication. Electric arc furnace operates an electric furnace that smelts metals and other materials by the thermal effect of an electric arc. When oil or gas is used as fuel, there is a nozzle under the crucible, and fuel and air are injected to burn and heat. This is an oil-fired crucible furnace or a gas furnace.

The heating temperature of the silicon carbide rollers can reach 1350℃, and they are installed straight or with water on both sides of the furnace cavity, and some furnaces are installed on the top and bottom of the furnace cavity.

Commonly used electric heaters are iron-chromium-aluminum electric heaters, nickel-chromium electric heaters, silicon carbide rollers and molybdenum disilicide rods. At present, most box-type resistance furnaces with spraying machines whose temperature is less than 1200℃ use metal or metal alloy electric heating elements. Graphite crucible: Graphite crucible is produced and supplied by professional refractory materials factory. There are many standards for crucible size and capacity. The number of crucible is the kilogram of molten copper alloy. For example, crucible No. 50 can melt 50 kilograms of copper. The capacity should be divided by a factor of 0.4.