灰色和灰黑色

Si3N4 or Sialon/Sylon material is applicable for making molten aluminum liquid 加热器保护管 and the gas burner protection tube in metallurgical industry like aluminum,锡,带领,zinc etc.The advantages of Si3N4 material are as follows:

With good thermal shock resistance and high temperature mechanical strength,therefore, the products can withstand severe thermal load of high temperature heaters. Repeated insertion and withdrawal of the products in the course of operation will not affect the performance.

灰色和灰黑色

●High thermal shock performance assures long working time when warming and cooling of molten aluminum, and also temperature difference between heater and liquid.

●Low wettability against molten aluminum can reduce the contacting of slag on the protection tube, and provides easy maintenance and operation.Excellent insulation can assure no contact .(绝缘) between heater and molten aluminum or other molten metal.

●With good high-temperature mechanical strength,corrosion resistance and low wettability, the Si3N4 material can protect the normal working of heater element in the tube for a long time. 如果保养得当, the actual using life can be up to 2-3years

1.抗热冲击

Si3N4 或 Sialon/Syalon 具有优越的抗热震性和高温机械强度.

在应用 Si3N4 或 Sialon/Syalon 产品之前, 需要预热. 预热过程可实现比传统陶瓷更好的可靠性.

2.耐腐蚀

Si3N4 或 Sialon/Syalon 具有优异的耐腐蚀性,对熔融铝几乎呈惰性, 从而确保更长的寿命.

3.低的- 润湿性

作为共价结合陶瓷，Si3N4 或 Sialon/Syalon 对熔融金属的润湿性低，不需要涂层. 不会产生太多的焦化和物质吸附, 因此, 很容易清洗.

4.低导热

Si3N4 或 Sialon/Syalon 具有导热低的优点. 低比热可将热损失降至最低. 保证了热电偶保护管测温的准确性,并有利于熔融金属热量在柄管内输送。这可以降低熔融铝的温度并节省整体能源成本.

5.高强度,长寿

Si3N4 或 Sialon/Syalon 即使在高达 800°C 的高温下也能保持其原有强度. 其耐腐蚀性和出色的强度特性允许产品的壁厚相对较薄，使其易于处理和操作, 以及维护和更换.