FR2354386A1 - Procede pour assurer et maintenir la proprete d'un orifice d'observation - Google Patents

Procede pour assurer et maintenir la proprete d'un orifice d'observation

Info

Publication number
FR2354386A1
FR2354386A1 FR7718250A FR7718250A FR2354386A1 FR 2354386 A1 FR2354386 A1 FR 2354386A1 FR 7718250 A FR7718250 A FR 7718250A FR 7718250 A FR7718250 A FR 7718250A FR 2354386 A1 FR2354386 A1 FR 2354386A1
Authority
FR
France
Prior art keywords
porthole
current
compressed gas
screen
observation hole
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
FR7718250A
Other languages
English (en)
French (fr)
Other versions
FR2354386B1 (enExample
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.)
Centre de Recherches Metallurgiques CRM ASBL
Original Assignee
Centre de Recherches Metallurgiques CRM ASBL
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 Centre de Recherches Metallurgiques CRM ASBL filed Critical Centre de Recherches Metallurgiques CRM ASBL
Publication of FR2354386A1 publication Critical patent/FR2354386A1/fr
Application granted granted Critical
Publication of FR2354386B1 publication Critical patent/FR2354386B1/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/24—Test rods or other checking devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Blast Furnaces (AREA)
FR7718250A 1976-06-11 1977-06-07 Procede pour assurer et maintenir la proprete d'un orifice d'observation Granted FR2354386A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE842904 1976-06-11

Publications (2)

Publication Number Publication Date
FR2354386A1 true FR2354386A1 (fr) 1978-01-06
FR2354386B1 FR2354386B1 (enExample) 1983-06-24

Family

ID=3861376

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7718250A Granted FR2354386A1 (fr) 1976-06-11 1977-06-07 Procede pour assurer et maintenir la proprete d'un orifice d'observation

Country Status (2)

Country Link
FR (1) FR2354386A1 (enExample)
LU (1) LU77517A1 (enExample)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB699921A (en) * 1950-03-22 1953-11-18 Alois Vogt Improvements in or relating to cleaning observation windows in high vacuum chambers
CH349359A (de) * 1956-06-12 1960-10-15 Balzers Hochvakuum Einrichtung zum Einblick in Vakuumanlagen
FR1377389A (fr) * 1963-09-03 1964-11-06 Temescal Metallurgical Corp Appareil d'observation grand angle pour dispositifs à vide poussé
FR1436107A (fr) * 1964-04-02 1966-04-22 Centre Nat Rech Metall Procédé de détermination du niveau de la charge dans une enceinte
FR2015311A1 (enExample) * 1968-08-08 1970-04-24 Nippon Kokan Kk
BE830896A (fr) * 1975-07-01 1976-01-02 Procede pour assurer et maintenir la proprete d'un orifice d'observation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB699921A (en) * 1950-03-22 1953-11-18 Alois Vogt Improvements in or relating to cleaning observation windows in high vacuum chambers
CH349359A (de) * 1956-06-12 1960-10-15 Balzers Hochvakuum Einrichtung zum Einblick in Vakuumanlagen
FR1377389A (fr) * 1963-09-03 1964-11-06 Temescal Metallurgical Corp Appareil d'observation grand angle pour dispositifs à vide poussé
FR1436107A (fr) * 1964-04-02 1966-04-22 Centre Nat Rech Metall Procédé de détermination du niveau de la charge dans une enceinte
FR2015311A1 (enExample) * 1968-08-08 1970-04-24 Nippon Kokan Kk
BE830896A (fr) * 1975-07-01 1976-01-02 Procede pour assurer et maintenir la proprete d'un orifice d'observation

Also Published As

Publication number Publication date
FR2354386B1 (enExample) 1983-06-24
LU77517A1 (enExample) 1977-09-26

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Legal Events

Date Code Title Description
ST Notification of lapse