H-type silicon carbide rods are used in conjunction with five-section rods, mainly in glass kilns. They are hard and brittle, resistant to rapid cooling and heating, not easily deformed at high temperatures, and have strong acid resistance. Dengfeng Minghui High-Temperature Components Co., Ltd. produces and customizes H-type silicon carbide rods for glass furnaces, H-type silicon carbide rods, groove-type silicon carbide rods, five-section silicon carbide rods, equal-diameter silicon carbide rods, etc. The products feature uniform heating and excellent corrosion resistance. Welcome to inquire.

Silicon carbide rods are non-metallic high-temperature heating elements that have long been used in the glass industry. In the glass container industry, the role of silicon carbide rods is to control cooling and homogenization. The so-called controlled cooling involves using the auxiliary heating of silicon carbide rods to uniformly cool the molten glass to the forming temperature. The homogenization effect is determined by the structure of the feeder channel and the heating of the silicon carbide rods. Using silicon carbide rods in the channel heats both the molten glass and the sidewalls, ensuring the temperature in each section of the feeder channel and supplementing the heat loss from the sidewalls.

Silicon carbide rods are generally evenly arranged above the molten glass in the feeder channel, maintaining a certain distance from the molten glass and radiating heat downward. To ensure heating on both sides of the channel without heating the middle part, specialized five-section rods (i.e., double-heating-body silicon carbide rods) for the glass feeder channel industry are typically used.
After the molten glass flows through the homogenization section, the temperature uniformly drops to a suitable value. If the temperature at the spout is not controlled, temperatures that are too high or too low will affect the shape of the gob and the forming quality of the glass container. Therefore, the scientific method is to control the spout separately, using two H-type silicon carbide rods and one three-section silicon carbide rod arranged around the spout for heating, or using two groove-type silicon carbide rods and one three-section silicon carbide rod evenly distributed around the spout to heat the spout.