Intriduction

The Hot Rod thermocouple sheath range offers a premium thermocouple protection system. Giving excellent service life and good accuracy and response. They are supplied ready for use with a threaded ½” steel tube for rapid attachment to the furnace Pyrometry system.

Applications

Floating Pyrometer

This system measures metal temperature towards the top surface regardless of crucible or bath capacity. Short Hot Rod thermocouple sheath are more tolerant to mechanical damage due to their dimensions and are generally immersed to some 100 mm. To achieve accurate measurement, the thermocouple should touch the bottom of the sheath to give food thermal conduction. Hot Rod sheaths have an integral steel tube with a ½” BSP thread for mounting to the furnace pyrometry system.

Fixed Pyrometer

This system is suitable for measuring and controlling a wide range of metal and alloys. Select Hot Rod thermocouple sheaths for their properties of life, accuracy response and temperature capability. These should be of sufficient length to allow 2/3 rd of metal removal before losing contact and accuracy.

Care and Use

Hot Rod thermocouple sheaths are attached using the steel insert, making sure that no part of the insert is exposed to air as this will cause oxidation and possible failure of the steel tube at operating temperatures

Care must be taken to ensure that the sheath is preheated prior to immersion in the molten metal bath to minimize thermal shock damage.

When loading a solid metal charge, care must be take to minimize mechanical damage, as this will shorten the life of the thermocouple sheath.

Hot Rod are supplied with a removable plastic netting protection to minimize glaze damage in transit and to ensure that reach the end use in good condition.

All dimensions are subject to normal manufacturing tolerances.
Greaves Morganite Crucible Ltd. Reserve the right to change specifications at any time.

Accessories for use with GMCL Crucibles

STAND OF DIFFERENT HEIGHT ALSO CAN BE MADE AVAILABLE ON ORDER.
STAND WATH SIPGOT ALSO AVAILABLE FOR TPC MODEL HAVING RECEESS

Stand prolong Crucible life, increase thermal efficiency and reduce thermal
Shock by ensuring firm sup[port and even heating of the base of the Crucible.

FOR THE PATTERNS ABOVE AC – 160 MUFFLE RINGS ARE AVAILABLE WITH MAXIMUM HEIGHT OF 250 mm

ORDER TO BE PLACED AS XMX & MODEL, e.g. FOR TPC – 400 CRUCIBLE, ORDER TO BE PLACED AS XMX – T400

Muffle rigs increase thermal efficiency by providing additional space for the heating charge.