Usage of the hottest silicon carbide rod

2022-07-31
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Usage of silicon carbide rod

usage of silicon carbide rod

(1) after the silicon carbide rod is heated in the air, a dense silicon oxide film is formed on the surface, which becomes an anti-oxidation protective film and plays a role in prolonging the service life. In recent years, a variety of such Ferrograph heating methods have been developed to detect abrasive materials and components, which is a relatively feasible and useful method to prevent the cracking of silicon carbide rods. The coating is used in furnaces with various gases

(2) the greater the current applied to the silicon carbide rod, the higher the surface temperature of the silicon carbide rod. It is recommended to use a minimum surface load density (power). Please note that the value recorded at the cold end of the silicon carbide rod is the current and voltage of 1000 ℃ in the air, which may not be consistent with the actual use. Generally, the surface power of the silicon carbide rod is obtained from the relationship between the furnace temperature and the surface temperature of the silicon carbide rod. It is recommended to use the surface power (w/cm2) of 1//3 value of the ultimate density of the silicon carbide rod.

(3) to continuously make robots, 3D printing, smart factories, intelligent manufacturing and other topics become the hot topics in the manufacturing industry. When using the silicon carbide rod, we hope to slowly increase the resistance to maintain a long life

this kind of testing machine is the mainstream product of the universal material testing machine nowadays.

when the workpiece is large, (4) the silicon carbide rods shall be connected in parallel as much as possible. If the resistance values of the silicon carbide rods are different, the load of the silicon carbide rods with high resistance in series is concentrated, resulting in a rapid increase in the resistance of a silicon carbide rod and a shorter service life

(5) the temperature distribution characteristics of the silicon carbide rod. The inspection specification at the time of new shipment is within the effective heating length Δ It is qualified only when the temperature is less than 60 ℃. Of course, the temperature distribution will increase with its aging, and may eventually reach 200 ℃. The specific temperature distribution varies with the furnace atmosphere and service conditions

(6) the service life of silicon carbide rod is shorter with the higher service temperature. Therefore, after the furnace temperature exceeds 1400 ℃, the oxidation speed is accelerated and the service life is shortened. During use, pay attention not to let the surface temperature of silicon carbide rod be too high

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