FR2282643A1 - Digital device for automatic control of carbon in steel - which determines plateau on cooling curve using pulse-code technique - Google Patents

Digital device for automatic control of carbon in steel - which determines plateau on cooling curve using pulse-code technique

Info

Publication number
FR2282643A1
FR2282643A1 FR7527492A FR7527492A FR2282643A1 FR 2282643 A1 FR2282643 A1 FR 2282643A1 FR 7527492 A FR7527492 A FR 7527492A FR 7527492 A FR7527492 A FR 7527492A FR 2282643 A1 FR2282643 A1 FR 2282643A1
Authority
FR
France
Prior art keywords
temp
cooling curve
pulse
carbon
automatic control
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.)
Granted
Application number
FR7527492A
Other languages
French (fr)
Other versions
FR2282643B1 (en
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.)
INST KIB AKADEMII
Original Assignee
INST KIB AKADEMII
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
Priority claimed from SU742066335A external-priority patent/SU655947A1/en
Priority claimed from SU742059723A external-priority patent/SU596959A1/en
Priority claimed from SU752100227A external-priority patent/SU670940A1/en
Application filed by INST KIB AKADEMII filed Critical INST KIB AKADEMII
Publication of FR2282643A1 publication Critical patent/FR2282643A1/en
Application granted granted Critical
Publication of FR2282643B1 publication Critical patent/FR2282643B1/fr
Granted 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
    • G01N25/04—Investigating or analyzing materials by the use of thermal means by investigating changes of state or changes of phase; by investigating sintering of melting point; of freezing point; of softening point
    • 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
    • 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)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Control Of Temperature (AREA)

Abstract

Digital device automatically controls the carbon content of a metal starting from the temp. plateaux on its cooling curve. A converter is used which converts a temp. input signal into a number of pulses. The converter has two outlets for pulse codes representing positive- and negative- increments of temp., the outlets being connected to a two-way counter converting the pulse signals into a parallel code. The electronic circuit includes a timer and a time discriminator, and the two-way counter feeds the bits to a register which memorises the pulse codes representative of the temp. plateaux on the cooling curve; and the register feeds a digital display device. It is used, for example, the computer control of steel making, using digital devices for automatic control of carbon by determining the liquidus temp. on a cooling curve.
FR7527492A 1974-08-06 1975-09-08 Digital device for automatic control of carbon in steel - which determines plateau on cooling curve using pulse-code technique Granted FR2282643A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SU742066335A SU655947A1 (en) 1974-08-06 1974-08-06 Device for determining carbon concentration in molten metal
SU742059723A SU596959A1 (en) 1974-09-06 1974-09-06 Arrangement for monitoring carbon content in liquid metal
SU752100227A SU670940A1 (en) 1975-01-21 1975-01-21 Device for monitoring carbon concentration in a metal

Publications (2)

Publication Number Publication Date
FR2282643A1 true FR2282643A1 (en) 1976-03-19
FR2282643B1 FR2282643B1 (en) 1982-12-17

Family

ID=27356278

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7527492A Granted FR2282643A1 (en) 1974-08-06 1975-09-08 Digital device for automatic control of carbon in steel - which determines plateau on cooling curve using pulse-code technique

Country Status (3)

Country Link
BE (1) BE833156A (en)
CS (1) CS183163B1 (en)
FR (1) FR2282643A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394800A1 (en) * 1977-06-13 1979-01-12 Inst Kib Akademii DIGITAL ANALYZER USED TO DETERMINE THE TEMPERATURE OF LIQUIDS IN METALS AND ALLOYS
FR2394799A1 (en) * 1977-06-13 1979-01-12 Inst Kib Akademii DIGITAL DEVICE FOR DETERMINING THE CARBON CONTENT OF MELT-CARBON FERROUS METALS
FR2395510A1 (en) * 1977-06-20 1979-01-19 Inst Kib Akademii DIGITAL DEVICE USED IN PARTICULAR TO DETERMINE THE CARBON EQUIVALENT IN CAST IRON
FR2396290A1 (en) * 1977-06-28 1979-01-26 Inst Kib Akademii METHOD AND DEVICE FOR IDENTIFYING THE THERMAL EFFECT OF THE PHASE TRANSFORMATION OF METALS AND ALLOYS DURING THEIR COOLING

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2394800A1 (en) * 1977-06-13 1979-01-12 Inst Kib Akademii DIGITAL ANALYZER USED TO DETERMINE THE TEMPERATURE OF LIQUIDS IN METALS AND ALLOYS
FR2394799A1 (en) * 1977-06-13 1979-01-12 Inst Kib Akademii DIGITAL DEVICE FOR DETERMINING THE CARBON CONTENT OF MELT-CARBON FERROUS METALS
FR2395510A1 (en) * 1977-06-20 1979-01-19 Inst Kib Akademii DIGITAL DEVICE USED IN PARTICULAR TO DETERMINE THE CARBON EQUIVALENT IN CAST IRON
FR2396290A1 (en) * 1977-06-28 1979-01-26 Inst Kib Akademii METHOD AND DEVICE FOR IDENTIFYING THE THERMAL EFFECT OF THE PHASE TRANSFORMATION OF METALS AND ALLOYS DURING THEIR COOLING

Also Published As

Publication number Publication date
FR2282643B1 (en) 1982-12-17
CS183163B1 (en) 1978-05-31
BE833156A (en) 1976-03-08

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Legal Events

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ST Notification of lapse