General Description for M I Cables  Mineral Insulated metal sheathed cables are proven choice in  industries It comprises a metal sheath in which thermoelectric  conductors or copper conductors are embedded in highly  compressed Mg() insulation.The metal other sheath protects the  inner wire (i.e. thermocouple conductor) against contamination.  Metal sheath makes it moisture proof , weldable, compact and  mechanically strong. Another distinct advantages, specially in  thermocouple cable is , it allows, fabrication of thermocouple in  small diameter.

The thermocouples, manufactured from MI thermocouple cables are flexible in design and can penetrate to odd location where ordinary thermocouple can not approach. The small mass and higher thermal conductivity enables fast thermal response. Is general , the standard features and advantages of MIMS cables are

• High Insulation Resistance Conductor / Sheath and Conductor / Conductor.
• Long Life.
• Easy Installation
• Mechanical Strength
• Safety
• Rapid Response
• Dielectric Strength
• Radiation Resistance
• Corrosion and Scaling Resistance
• Long Lengths
• Small CableDiameter

Manufacturing  Process for MI Cables.
                                                     MIMS Cables are manufactured by using a higher diameter tubes and conductors. The conductors are inserted into metal pipe. The conductors are properly spaced in the pipe by using crushable Mgo blocks. These Mgo blocks provides insulation between the conductors as well as with the wall. Also these blocks maintains the geometry, i.e. the position of conductors. The operation required to manufacture MIMS cables are

• Cleaning of tubes
• Insertion of conductor into the bocks
• Host filling (I,e, insertion of conductors along with the blocks into the pipe)
• Swaging (this operation crush the MgO blocks)
• Drawing (The diameter is reduced by successive drawing which also ensures compact powder around the conductors)
• Inter pass annealing ( Various annealing are required to achieve the metal properties back which are disturbed in drawing process. This annealing is conducted in controlled environment to retain the chemical properties of the sheath material)
• Packling and finishing

Techno offers wide range of MI cables for the production of thermocouples and RTD assembly. The standard OD of cables are 1.6 mm,3mm,4.5mm,6mm and 8mm. They are available with outer sheath of SS304, SS 316l, Inconel 600, Incolloy 800, SS310 and SS 321.