不锈钢激光切割机器人手臂使用隧道窑高温炉加热棒碳化硅管进行陶瓷烧结U硅碳棒的精密加工
在新窑建成或旧窑进行大修后，烤窑工作至关重要，以便放料生产。在条件允许的情况下，建议采用其他热源进行烤窑操作。如果确实需要使用硅碳棒，建议优先使用旧的硅碳棒。正如前述，在高温下水蒸汽对硅碳棒是不利的，而新建的料道通常含有大量水分，加上硅碳棒可能长期承受高功率工作且表面温度较高。
无论是用旧的还是新的硅碳棒进行烤窑，都应该将控制系统设置为“手动”模式，在送电初期缓慢调节加到棒上的电压，使其不超过额定电压的一半，并预热一段时间。当电压和电流稳定后，再逐渐升高电压。当需要加速升温时，可以辅助火焰枪，但切勿让火焰直接烧击硅碴棒，以免其迅速氧化。
carbonized silicon, also known as carbonized silicon or black silicon, is a type of material that has been widely used in various industries due to its unique properties. It is a byproduct of the production process for electric heating elements such as silicon carbide rods. Carbonized silicon exhibits excellent electrical and thermal conductivity, making it an ideal material for high-temperature applications.
It's worth noting that carbonized silicon does not react with any acids. However, at temperatures around 1300°C, it can react with alkaline substances and alkaline oxides. Silicon carbide rods possess some degree of oxidation resistance. When the rod body temperature reaches 800°C, surface oxidation begins to occur. As the temperature continues to rise, a layer of SiO2 forms on the surface of the rod, which acts as a protective barrier against further oxidation.
This protective layer has a certain melting point and will break down or detach when the rod body temperature exceeds 1600°C. If continued use results in repeated formation and breakdown of this layer, it may lead to further oxidation and reduced lifespan for the silicone carbide rods.
Therefore, continuous operation without excessive overheating is crucial for maintaining optimal performance from these components. Proper design of furnaces and parameters related to silicone carbide rods are key factors contributing towards prolonging their lifespan through appropriate usage practices.
The article highlights several key points about using silicone carbide rods in high-temperature furnace applications:
The importance of preheating before introducing load into newly built furnaces.
Recommendations on choosing between old or new silicone carbide rods based on factors like water content within materials being heated.
Safety precautions while adjusting voltage levels during startup phases.
Avoidance direct flame contact with electrodes during heat-up stages.
Overall this text provides valuable insights into best practices when handling sensitive equipment like hot metalworking processes involving non-reactive materials such as Silicone Carbide Rods (SCR).
