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Photos 1 Uses of Silicon Molybdenum（MOSI2）Heating Elements and Silicon Carbide (Sic) Electric Heating Elements 2 Differences Between Silicon Molybdenum（MOSI2）Heating Elements and Silicon Carbide (Sic) Electric Heating Elements 
Customers who bought this product also boughtSilicon Carbide (Sic) Electric Heating Elements and silicon molybdenum (MoSi2) heating elements are widely used as new types of electric heating elements in various types of modern electric heating type Industrial furnaces.
The principle of an electric heating furnace is that relying on the electrical conductivity of the electric heating elements, such as electric wire, silicon carbide (sic) electric heating elements, and silicon molybdenum (MoSi2) heating elements, transform electrical energy into heat energy. Through heat conduction such as radiation, the temperature of the products in the furnace chamber is increased and the firing is completed according to the predetermined sintering conditions.
The electric heating furnace needs to calculate the heating power according to the heating requirements and the internal dimensions of the furnace, and select the suitable electric heating elements according to the different heating temperatures (below 800 degrees - main electric Heating Wire, 800 degrees to 1400 degrees - silicon carbon rods, 1400 degrees to 1800 degrees - silicon molybdenum rods), then determine the size and number of heating elements according to the space of the furnace, the heating power allocated to a single Heating Element, and finally select the power supply and control equipment according to the calculated data.
From the operations point of view, being a relatively small structure, the electric heating kiln allows for precise temperature control, which results in better firing quality. Due to this advantage, industries with high requirements for sintered products use electric heating elements with silicon carbide (sic), silicon molybdenum (MoSi2) heating elements, or a combination of both for the sintering of related products. For example, silicon carbide (sic) electric heating elements and silicon molybdenum (MoSi2) heating elements are used for the sintering of various magnetic materials, glass products, industrial ceramic parts, and the rapidly developing sintering furnaces for lithium battery cathode materials. elements as the heating source
From the cost perspective, the electrical equipment attached to the electric heating furnace is relatively complex, the price of high-quality refractory materials is relatively high, and the silicon carbide (sic) electric heating elements and silicon molybdenum (MoSi2) heating elements as heat sources are consumable, and the electricity consumed by the furnace operation is relatively expensive, resulting in the relatively high cost of using the electric heating furnace. Therefore, for industrial products that must be sintered in electric furnaces, the choice of high-quality control equipment, refractory materials, and heating elements is the way to effectively reduce production costs and improve productivity and product quality. TOPE INTL's unique production process and proprietary technology enable its products to have a more stable operation and longer service life than other companies' products, effectively avoiding common problems such as breakage of heating element components while in use, instability of current in use, and rapid aging. The production process of this type of electric heating element is divided into five processes: synthesis, forming, sintering, welding, and shaping. There are two key points in the welding process: the heating time needs to be between 6-7 minutes and the maximum temperature needs to reach above 1600 degrees. With the introduction of "vacuum welding" technology, TOPE INTL uses one furnace for automated welding and precise welding in a confined space, requiring only one person to complete the welding control, which greatly improves efficiency and saves cost, accomplishing the company's exploration of technology and digital management.
Although Silicon carbide heating elements and silicon molybdenum (MoSi2) heating elements both belong to High-Temperature heating elements, they have many differences.
Typically, silicon-carbon rods are used in the range of about 1000-1450 degrees. The new process of hot bending silicon-molybdenum rods can now reach temperatures of more than 1900 degrees. Therefore, silicon-carbon rods are commonly used in small chambered, experimental electric and muffle furnaces. Large muffle, chamber, and tube furnaces, ceramics, magnetic materials, glass, metallurgy, refractory materials, and other industries require silicon-molybdenum rods.
In use, silicon carbide heating elements have high voltage and low current. Silicon molybdenum (MoSi2) heating elements, on the other hand, are high current and low voltage. When using silicon carbide high-temperature elements, the resistance of the elements must be considered, while the resistance of silicon molybdenum (MoSi2) heating elements is so small that it is negligible. Since the lower part of the U-type silicon carbide (sic) electric heating element’s hot end does not generate heat (except for custom-made ones), the U-type silicon carbide (sic) electric heating elements can be placed directly on the bottom of the furnace to play a supporting role. The hot end of the silicon molybdenum (MoSi2) heating element must be kept at a certain distance from the bottom of the furnace to prevent burning the bottom of the furnace. Silicon carbide (sic) electric heating elements are generally linked in a chilled manner, which reduces the resistance and keeps the temperature from getting too high. Silicon molybdenum (MoSi2) heating elements are generally linked in a series way because silicon molybdenum (MoSi2) heating elements are used at higher temperatures. So, it is easier to install in series. Silicon molybdenum (MoSi2) heating elements do not deteriorate with long-term use (aging: resistance increases with use). So, silicon molybdenum (MoSi2) heating elements can be used with old and new rods at the same time. The resistance of silicon carbide (sic) electric heating elements increases with time.
Silicon molybdenum (MoSi2) heating elements are a kind of resistance heating element based on molybdenum disilicide. Silicon carbide (sic) electric heating elements are made of high purity green hexagonal silicon carbide as the main raw material, which is recrystallized by high-temperature siliconization at 2200℃. The densities of silicon carbide (sic) electric heating elements are more than twice that of silicon carbide (sic) electric heating elements. The recycling value of silicon molybdenum (MoSi2) heating elements is much greater than that of silicon carbide components after the use and scrap of the components.
Silicon molybdenum (MoSi2) heating elements can be made into any shape theoretically using modern heat bending technology and can be customized according to customer requirements. When carbon rods and molybdenum rods have the same shape, the slim and delicate one is the molybdenum rod.
The surface of silicon molybdenum (MoSi2) heating elements is smoother, the cold section is half as thick as the hot end, while silicon molybdenum (MoSi2) heating elements are made solid. The contact surface of the silicon carbide (sic,) electric heating elements has more visible weld marks. And it is hollow. Silicon carbide (sic) electric heating elements and silicon molybdenum (MoSi2) heating elements are similar in many ways, but they are still different. The choice of silicon carbide (sic) electric heating elements or silicon molybdenum (MoSi2) heating elements depends on the usage temperature.
