At temperatures above 2012° F (1100° C), graphite dust from graphite liners\/shields or heating elements can attack and carburize molybdenum sheaths. This causes the sheath to crystallize and become porous, losing its protective properties. The thermal elements in turn crystallize and open. Coating the heat-affected length of the molybdenum sheath with a thick layer of tungsten reduces this carburization action and extends probe life. The tungsten coating also provides increased abrasion resistance.
技术参数
| 规格项 | 参数值 |
|---|---|
| 结构类型 | Ungrounded Thermocouple |
| 直径或宽度 | 0.1250 to 0.3750 inch (3.17 to 9.52 mm) |
| 特征 | Available as an Assembly |
| 探头配置 | Straight Probe |
| 连接方式 | Threaded Fitting |
| 产品类别 | Thermocouple Temperature Probes |
| 护套材料 | Tungsten-Coated Molybdenum |
| 金属、贵金属和难熔金属类型 | S (optional feature) |
