GB620765A - Improvements in or relating to apparatus for determining the constitution of material, for example a tin solder, having a transformation point of temperature - Google Patents

Improvements in or relating to apparatus for determining the constitution of material, for example a tin solder, having a transformation point of temperature

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Publication number
GB620765A
GB620765A GB17655/46A GB1765546A GB620765A GB 620765 A GB620765 A GB 620765A GB 17655/46 A GB17655/46 A GB 17655/46A GB 1765546 A GB1765546 A GB 1765546A GB 620765 A GB620765 A GB 620765A
Authority
GB
United Kingdom
Prior art keywords
chambers
chamber
solder
determining
temperature
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
GB17655/46A
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.)
Continental Can Co Inc
Original Assignee
Continental Can Co 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 Continental Can Co Inc filed Critical Continental Can Co Inc
Publication of GB620765A publication Critical patent/GB620765A/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
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/02—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

<PICT:0620765/III/1> <PICT:0620765/III/2> Apparatus for determining the constitution of a material having a transformation point of temperature, comprises two chambers, one of which is adapted to contain a reference material having a transformation point near that of the material under test, and the other to contain the material under test, the arrangement being such that the two materials are caused to pass through their transformation points at least partially concurrently, and means for measuring the temperature difference between the materials in the chambers. The apparatus is especially adapted for determining the composition of lead-tin solder used for soldering the seams on tin-plate, and as shown (Fig. 2), consists of chambers 33, 35, supported by a long arm 31 formed with a handle 30. Chamber 33 contains the reference material, say pure lead, and chamber 35 is apertured at 36 so that solder may flow thereinto when the chambers are dipped in the solder bath. Wells 37, 38 in the chambers accommodate a thermopile 40 connected to an ammeter graduated in terms of tin percentage, and provided with a short-circuiting switch. Chamber 33 is preferably of smaller volume than chamber 35. Fig. 4 shows (1) the cooling curves 13, 17 of the lead and material under test respectively, and (2) the temperature differential curve. The steady deflection represented by part 22 of the lower curve is an indication of the composition of the solder.
GB17655/46A 1945-06-15 1946-06-12 Improvements in or relating to apparatus for determining the constitution of material, for example a tin solder, having a transformation point of temperature Expired GB620765A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US620765XA 1945-06-15 1945-06-15

Publications (1)

Publication Number Publication Date
GB620765A true GB620765A (en) 1949-03-30

Family

ID=22040075

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17655/46A Expired GB620765A (en) 1945-06-15 1946-06-12 Improvements in or relating to apparatus for determining the constitution of material, for example a tin solder, having a transformation point of temperature

Country Status (1)

Country Link
GB (1) GB620765A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173273B (en) * 1959-08-07 1964-07-02 Perkin Elmer Ltd Device for measuring melting point

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173273B (en) * 1959-08-07 1964-07-02 Perkin Elmer Ltd Device for measuring melting point

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