GB1099606A - Thermocouple device and method - Google Patents

Thermocouple device and method

Info

Publication number
GB1099606A
GB1099606A GB3142666A GB3142666A GB1099606A GB 1099606 A GB1099606 A GB 1099606A GB 3142666 A GB3142666 A GB 3142666A GB 3142666 A GB3142666 A GB 3142666A GB 1099606 A GB1099606 A GB 1099606A
Authority
GB
United Kingdom
Prior art keywords
binding agent
weight
heat
solids
colloidal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3142666A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gulton Industries Inc
Original Assignee
Gulton Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gulton Industries Inc filed Critical Gulton Industries Inc
Publication of GB1099606A publication Critical patent/GB1099606A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/08—Protective devices, e.g. casings
    • G01K1/10—Protective devices, e.g. casings for preventing chemical attack
    • G01K1/105—Protective devices, e.g. casings for preventing chemical attack for siderurgical use

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Ceramic Products (AREA)

Abstract

A heat-hardenable fibrous ceramic material suitable for coating thermocouple junctions (see Division H1) comprises fibres of, for example, alumina and silica in equal quantities by weight, bonded together by a heat hardenable binder such as a colloidal silica binding agent. The material is formed from a slurry comprising the fibrous ceramic material dispersed in water. The binding agent is added in a concentration of 20-25% by weight, based on solids. The mixture, comprising 30% solids and 70% water, is introduced to a tank provided with a porous felting screen associated with suction means. The fibrous material and the binding agent accumulate on the screen, and when the desired thickness is reached the screen is removed from the tank and suction is maintained until the water content is about 20% by weight and the colloidal silica binding agent content is about 5% by weight on a solids basis. The material may then be moulded and heat-hardened around the thermo-couple junctions (see Divisions B4-B5). Other suitable fibrous ceramic materials include mineral or rock wool, beryllia, zirconia, titania, slag wool or quartz. The binding agent may alternatively be sodium silicate, colloidal alumina, colloidal zirconia &c.
GB3142666A 1965-07-21 1966-07-13 Thermocouple device and method Expired GB1099606A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47363965A 1965-07-21 1965-07-21

Publications (1)

Publication Number Publication Date
GB1099606A true GB1099606A (en) 1968-01-17

Family

ID=23880381

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3142666A Expired GB1099606A (en) 1965-07-21 1966-07-13 Thermocouple device and method

Country Status (1)

Country Link
GB (1) GB1099606A (en)

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