ES359241A1 - Control device for controlling the preparation of a product in a controllable elaboration container. (Machine-translation by Google Translate, not legally binding) - Google Patents
Control device for controlling the preparation of a product in a controllable elaboration container. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES359241A1 ES359241A1 ES359241A ES359241A ES359241A1 ES 359241 A1 ES359241 A1 ES 359241A1 ES 359241 A ES359241 A ES 359241A ES 359241 A ES359241 A ES 359241A ES 359241 A1 ES359241 A1 ES 359241A1
- Authority
- ES
- Spain
- Prior art keywords
- gas
- furnace
- oxide
- controller
- detected
- 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
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
- C21D1/76—Adjusting the composition of the atmosphere
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Fuel Cell (AREA)
- Furnace Details (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
The oxygen content of the atmosphere of a processing vessel 11 is detected and used to control the supply of gas to the vessel to optimise the process. In an annealing furnace Fig. 2 gas is supplied by a generator 14 and the oxygen partial pressure is detected, by a cell 15, at various points through the furnace. The output of cell 15 is applied to a controller 12 which may be a digital computer with suitable analogue/digital converters. The flow of gas to the furnace is detected and controlled by a device 16 in accordance with an output signal from the controller 12. The controller also controls the generation of gas e.g. the air/fuel mixture supplied to the generator 14 and is responsive to temperatures within the furnace. The controller maintains the oxygen partial pressure below that necessary to oxydize the metal. In an application to a reduction process Fig. 4 (not shown) in which the oxide to be reduced passes continuously through the reduction vessel and reducing gas flows in the opposite direction and is recirculated, the oxygen partial pressure is detected at the inlet and outlet of the vessel and the computer responds to the partial pressures, the temperature and also the rate at which the oxide passes through the furnace. It controls the gas supply as before, as well as the proportion of recirculated gas. In application to a sintering furnace the controller maintains the oxygen partial pressure above a value at which one oxide is produced and below a value at which a different oxide would be produced. In application to a carburizing furnace Fig. 6 (not shown) the computer controls each individual stage in production of the carburizing atmosphere. The oxygen measuring cell is of the type comprising a calcium stabilized zirconium -oxide electrolyte having electrodes attached to opposite surfaces respectively exposed to a reference gas such as air and the gas to be analysed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67631267A | 1967-10-18 | 1967-10-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES359241A1 true ES359241A1 (en) | 1970-08-16 |
Family
ID=24714026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES359241A Expired ES359241A1 (en) | 1967-10-18 | 1968-10-16 | Control device for controlling the preparation of a product in a controllable elaboration container. (Machine-translation by Google Translate, not legally binding) |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE722440A (en) |
| DE (1) | DE1803211A1 (en) |
| ES (1) | ES359241A1 (en) |
| FR (1) | FR1586283A (en) |
| GB (1) | GB1225690A (en) |
| NL (1) | NL6815000A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121922A (en) * | 1976-06-21 | 1978-10-24 | Fierro Esponja, S.A. | Method and apparatus for measuring percentage reduction in a metal ore reduction reactor |
| FI65806C (en) * | 1980-04-16 | 1984-07-10 | Outokumpu Oy | FOERFARANDE FOER AOTERVINNING AV BLY UR ETT BLYHALTIGT SULFIDKONCENTRAT |
| KR930001008B1 (en) * | 1989-12-26 | 1993-02-12 | 동양나이론 주식회사 | Process for controlling the atmosphere in the heating furnace |
| FR2681137B1 (en) * | 1991-09-11 | 1994-07-29 | Superba Sa | DEVICE FOR MEASURING AND ADJUSTING THE AIR CONCENTRATION OF A SPEAKER. |
| JP5428032B2 (en) * | 2001-06-05 | 2014-02-26 | Ｄｏｗａサーモテック株式会社 | Carburizing method |
| JP5428031B2 (en) * | 2001-06-05 | 2014-02-26 | Ｄｏｗａサーモテック株式会社 | Carburizing method and apparatus |
| FI120187B (en) * | 2003-03-14 | 2009-07-31 | Outotec Oyj | A method for controlling the process |
| DE102011053634B3 (en) | 2011-09-15 | 2013-03-21 | Benteler Automobiltechnik Gmbh | Method and device for heating a precoated steel plate |
| DE102014010711B4 (en) * | 2014-07-19 | 2019-08-29 | Wieland-Werke Ag | Process for the thermal treatment of zinc-containing copper alloy strips |
| CN114107881B (en) * | 2021-11-15 | 2023-07-25 | 湖南弘辉科技有限公司 | High-speed fan blade processing technology |
-
1968
- 1968-09-30 GB GB1225690D patent/GB1225690A/en not_active Expired
- 1968-10-09 FR FR1586283D patent/FR1586283A/fr not_active Expired
- 1968-10-16 ES ES359241A patent/ES359241A1/en not_active Expired
- 1968-10-16 DE DE19681803211 patent/DE1803211A1/en active Pending
- 1968-10-17 BE BE722440D patent/BE722440A/xx unknown
- 1968-10-18 NL NL6815000A patent/NL6815000A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL6815000A (en) | 1969-04-22 |
| FR1586283A (en) | 1970-02-13 |
| BE722440A (en) | 1969-04-01 |
| DE1803211A1 (en) | 1969-06-26 |
| GB1225690A (en) | 1971-03-17 |
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