GB922410A - Improvements in or relating to the measurement of gases in metals - Google Patents

Improvements in or relating to the measurement of gases in metals

Info

Publication number
GB922410A
GB922410A GB14051/60A GB1405160A GB922410A GB 922410 A GB922410 A GB 922410A GB 14051/60 A GB14051/60 A GB 14051/60A GB 1405160 A GB1405160 A GB 1405160A GB 922410 A GB922410 A GB 922410A
Authority
GB
United Kingdom
Prior art keywords
sample
carrier gas
gas
cylinder
oven
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
GB14051/60A
Inventor
Frank Robert Coe
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.)
BRITISH WELDING RES ASS
Original Assignee
BRITISH WELDING RES ASS
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 BRITISH WELDING RES ASS filed Critical BRITISH WELDING RES ASS
Priority to GB14051/60A priority Critical patent/GB922410A/en
Priority to US104427A priority patent/US3176500A/en
Priority to DEB62210A priority patent/DE1295242B/en
Publication of GB922410A publication Critical patent/GB922410A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
    • G01N27/185—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested using a catharometer
    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

<PICT:0922410/III/1> <PICT:0922410/III/2> Apparatus for estimating gases occluded in a metal sample (e.g. hydrogen in steel) comprises a loading device (6) by means of which the sample is introduced into an oven (7) with only a negligible amount of air, a channel (including the oven) to guide a carrier gas (e.g. argon) over the sample in the oven and a device (8) to measure the thermal conductivity of the resulting gas stream. The numerals relate to Fig. 1 in which the carrier gas is supplied through a needle valve 2, U-tube flowmeter 3 and drying agent 40 (magnesium perchloride) to the loading device 6 shown in detail in Fig. 2. The sample 50 is loaded into a tube 49 for heating in the furnace and the device 8 is a katharometer giving an indication on recorder 11 in the form of a figure corresponding to the instantaneous concentration of evolved gas in the carrier or in the form of a trace on a chart. The apparatus is calibrated by means of standard amounts of hydrogen introduced from gas burette 16 controlled by a diaphragm valve 23. The loading device (Fig. 2) comprises a hollow brass cylinder 31 to which carrier gas is admitted at 35 and which is open at the diametrically opposite side to permit the sample and carrier gas to enter the tube 49 (Fig. 1). The cylinder 31 contains an inner cylindrical block 30, rotatable therein and having a chamber 32 to which the sample may be admitted when in the position shown by removal of a stopper 37 in the cylinder 31. There are openings in the lower part of the block and in the stopper by means of which carrier gas can flow through the chamber as shown. By rotating the inner cylinder clockwise through 90 degrees and tilting the apparatus, the sample 50 can be placed in the position shown in Fig. 1 and carrier gas passed thereover without admission of air. If analysis of occluded gases is required, a molecular sieve column may be inserted into the apparatus.
GB14051/60A 1960-04-21 1960-04-21 Improvements in or relating to the measurement of gases in metals Expired GB922410A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB14051/60A GB922410A (en) 1960-04-21 1960-04-21 Improvements in or relating to the measurement of gases in metals
US104427A US3176500A (en) 1960-04-21 1961-04-20 Measurement of gases in metals
DEB62210A DE1295242B (en) 1960-04-21 1961-04-20 Loading device for devices for the determination of hydrogen in metals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14051/60A GB922410A (en) 1960-04-21 1960-04-21 Improvements in or relating to the measurement of gases in metals

Publications (1)

Publication Number Publication Date
GB922410A true GB922410A (en) 1963-04-03

Family

ID=10034097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14051/60A Expired GB922410A (en) 1960-04-21 1960-04-21 Improvements in or relating to the measurement of gases in metals

Country Status (3)

Country Link
US (1) US3176500A (en)
DE (1) DE1295242B (en)
GB (1) GB922410A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251217A (en) * 1963-03-05 1966-05-17 Univ Iowa State Res Found Inc Determination of gases in metals
US3427863A (en) * 1963-04-05 1969-02-18 Lab Equipment Corp Method and apparatus for the direct determination of gases
NL127047C (en) * 1964-07-23 1900-01-01
US3438241A (en) * 1964-09-23 1969-04-15 Monsanto Co Gas detection apparatus
US3531980A (en) * 1967-04-14 1970-10-06 Nashua Corp Method and apparatus for measuring volatile content
US3490266A (en) * 1967-06-15 1970-01-20 Lab Equipment Corp Hot extraction hydrogen analyzer
FR2199406A6 (en) * 1972-09-14 1974-04-05 Siderurgie Fse Inst Rech
US3817084A (en) * 1972-11-17 1974-06-18 Nasa Apparatus for inserting and removing specimens from high temperature vacuum furnaces
US4192175A (en) * 1978-03-03 1980-03-11 Kobe Steel, Ltd. Process and apparatus for measurement of diffusible hydrogen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795132A (en) * 1955-03-25 1957-06-11 Nat Res Corp Apparatus for measuring gas in molten metals
US3002387A (en) * 1957-11-26 1961-10-03 Standard Oil Co Sealed sample injector for gas chromatography
US3063286A (en) * 1959-07-14 1962-11-13 Standard Oil Co Sample introduction system for gas chromatography apparatus

Also Published As

Publication number Publication date
US3176500A (en) 1965-04-06
DE1295242B (en) 1969-05-14

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