GB1268289A - Method of measuring the carbon potential in gas atmospheres - Google Patents
Method of measuring the carbon potential in gas atmospheresInfo
- Publication number
- GB1268289A GB1268289A GB48227/70A GB4822770A GB1268289A GB 1268289 A GB1268289 A GB 1268289A GB 48227/70 A GB48227/70 A GB 48227/70A GB 4822770 A GB4822770 A GB 4822770A GB 1268289 A GB1268289 A GB 1268289A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas
- carbon
- temperature
- detecting element
- tube
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/20—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity
- G01N25/48—Investigating or analyzing materials by the use of thermal means by investigating the development of heat, i.e. calorimetry, e.g. by measuring specific heat, by measuring thermal conductivity on solution, sorption, or a chemical reaction not involving combustion or catalytic oxidation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/20—Metals
- G01N33/202—Constituents thereof
- G01N33/2022—Non-metallic constituents
- G01N33/2025—Gaseous constituents
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Investigating And Analyzing Materials By Characteristic Methods (AREA)
- Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
1,268,289. Gas analysis; determining critical temperatures. TOKYO GAS CO. Ltd. Oct. 9, 1970 [Oct. 9, 1969], No.48227/70. Heading G1B and G1D. To determine the carbon potential of a heat treatment furnace gas atmosphere, the carbon deposition temperature of the gas is directly measured by passing a flow of the gas over a carbon deposit detecting element 3 and a temperature sensing element 2 associated therewith, and varying the gas flow temperature, the carbon potential at the furnace temperature being calculated from the carbon deposition temperature. As shown, a thermocouple 2 and a carbon deposit detecting element 3, comprising a pair of electrodes which are electrically interconnected when a carbon deposit occurs to give an ON signal and disconnected when the deposit is decreased to give an OFF signal, are mounted in a support tube 6 which is longitudinally slidable in a watercooled guide 5 to vary its position in a duct 7 through the furnace wall 13. Holes 4 in the tube 6 allow gas flowing through the duct 7 to pass over the elements 2, 3. Signals from the carbon deposit detecting element 3 to a control device 10 cause a motor 9 to move the tube 6 to maintain the element 3 at a point where the gas temperature is equal to the carbon deposition temperature, utilizing the presence of a temperature gradient through the furnace wall. The thermocouple 2 is connected to a recorder 11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8086369 | 1969-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1268289A true GB1268289A (en) | 1972-03-29 |
Family
ID=13730162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB48227/70A Expired GB1268289A (en) | 1969-10-09 | 1970-10-09 | Method of measuring the carbon potential in gas atmospheres |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2065228A5 (en) |
| GB (1) | GB1268289A (en) |
-
1970
- 1970-10-08 FR FR7036460A patent/FR2065228A5/fr not_active Expired
- 1970-10-09 GB GB48227/70A patent/GB1268289A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2048850B2 (en) | 1975-06-05 |
| DE2048850A1 (en) | 1971-04-22 |
| FR2065228A5 (en) | 1971-07-23 |
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