真空机辅助隧道窑高温炉加热棒碳化硅管陶瓷烧结U硅碳棒
在新窑建成或旧窑进行大修后，烤窑工作是必须要完成的步骤，以确保料子的生产条件。在可能的情况下，我们建议使用其他类型的热源来进行烤窑。如果一定要使用硅碳棒，那么建议选择老旧的硅碳棒。如前所述，在高温环境下，水蒸汽对硅碳棒是不利的，而新建的料道往往含有大量水分，而且硅碳棒可能会长期处于高功率状态，并且表面温度较高。不管是用新的还是旧的硅碳棒进行烤窑，都应该将控制系统设置为手动模式，在开始送电时，逐渐调节加到棒上的电压，不超过额定电压的一半，以便预热一段时间。当电压和电流正常后，再逐渐升高电压。在需要加速升温时，用火焰枪辅助加热，但切不可让火焰直接烧击硅碴棒，以免其被氧化。
carbonized silicon, also known as black silicon carbide and green silicon carbide, is a type of material that can be used for various industrial applications. The production of electric heating elements such as silicon carbide rods utilizes the properties of carbonized silicon, which includes its ability to conduct electricity and heat, as well as its stability and long lifespan. Silicon carbide rods do not react with any acids. However, at temperatures around 1300°C, they can react with alkalis and alkaline oxides.
Silicon carbide rods have some degree of antioxidant properties. When the temperature of the rod body reaches 800°C, surface oxidation begins. As the temperature continues to rise, a layer of SiO2 forms on the surface of the rod body, preventing further oxidation and extending its lifespan. This protective layer has a certain melting point; when the temperature exceeds 1600°C or more, it will break down or peel off. If continued use causes further oxidation without generating a new protective layer on the surface of silica refractory materials in contact with high-temperature furnaces may lead to damage or failure.
Therefore it is important to design electric furnaces and parameters for silicon carbide rods correctly in order to extend their usage life span by using them continuously while maintaining appropriate temperatures during operation
