New Type R-SP Reinforced Thermocouple Wire

New Type R-SP Reinforced Thermocouple Wire
Increased Creep Strength Due to Change in T/C Manufacturing Method

Creep rupture can be named as a general disconnection mode for T/C. Type R-SP T/C wire improves on the mode that disconnects due to creeps. This type R-SP T/C wire has improved creep strength without any additive material.

Creep rupture can be named as a general disconnection mode for T/C.
Type R-SP T/C wire improves on the mode that disconnects due to creeps. This type R-SP T/C wire has improved creep strength without any additive material.

Disconnection Mechanism and Sectional Structure of the Wires

Disconnection Mechanism and Sectional Structure of the Wires

Wire Sectional Structure

Wire Sectional Structure

Creep strength test / Drift test

Creep test     Condition: 1100℃

Creep strength test / Drift test

Drift test

Drift test

●Conventional RT/C 0Hr
■Conventional RT/C 2310Hr
●R-SP 0Hr
■R-SP 2310Hr

Heated Contact Point Utilizing Raw Materials

If a normal welding method is applied, the extended structure and the strengthened effect, which are characteristics of type R-SP wires, fade away. In order to combat this, welding is decreased, and it is possible to maintain the strength by wrapping and crimping a Pt sleeve around the wire.

Normal Welding

Normal Welding

Negative wire

Positive wire

Boundary arises between the type R-SP structure and melted structure.
Boundary arises between the type R-SP structure and melted structure.

Crimp Junction

Crimp Junction

Negative wire

Positive wire

The extended structure, a unique characteristic of type R-SP, is maintained.
The extended structure, a unique characteristic of type R-SP, is maintained.