GB1028113A - Forced-convection furnace - Google Patents
Forced-convection furnaceInfo
- Publication number
- GB1028113A GB1028113A GB3518764A GB3518764A GB1028113A GB 1028113 A GB1028113 A GB 1028113A GB 3518764 A GB3518764 A GB 3518764A GB 3518764 A GB3518764 A GB 3518764A GB 1028113 A GB1028113 A GB 1028113A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treatment
- gas
- envelope
- zone
- fan
- 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
- 238000001816 cooling Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K4/00—Generating pulses having essentially a finite slope or stepped portions
- H03K4/06—Generating pulses having essentially a finite slope or stepped portions having triangular shape
- H03K4/08—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape
- H03K4/48—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices
- H03K4/60—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor
- H03K4/69—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as an amplifier
- H03K4/72—Generating pulses having essentially a finite slope or stepped portions having triangular shape having sawtooth shape using as active elements semiconductor devices in which a sawtooth current is produced through an inductor using a semiconductor device operating as an amplifier combined with means for generating the driving pulses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J6/00—Heat treatments such as Calcining; Fusing ; Pyrolysis
-
- 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
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D7/00—Forming, maintaining, or circulating atmospheres in heating chambers
- F27D7/04—Circulating atmospheres by mechanical means
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Details (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
1,028,113. Heat treatment furnaces. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 27, 1964 [Sept. 10, 1963], No. 35187/64. Heading F4B. Treatment gas, particularly corrosive gas, is circulated through an accelerated flow treatment zone 20 by a fan 24 mounted within a cylindrical envelope 1. A slow flow zone at one end of the envelope receives gas from the accelerated flow zone by leakage between a deflector 26 and the envelope 1, and fresh gas is introduced into the treatment zone through a duct 18. Inlet and outlet passages 10, 12 extend from the slow flow end of the envelope. Flow in the treatment zone is guided by in cylindrical wall 14, a diffuser 22 leading the gas back to the axis of the fan. The treatment end of the enclosure is heated in a furnace 52, the other end having a cooling jacket 50, and a cap 44 enclosing the drive for the fan 24.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR947033A FR1388693A (en) | 1963-09-10 | 1963-09-10 | Forced convection oven |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1028113A true GB1028113A (en) | 1966-05-04 |
Family
ID=8812046
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3518764A Expired GB1028113A (en) | 1963-09-10 | 1964-08-27 | Forced-convection furnace |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE652554A (en) |
CH (1) | CH438589A (en) |
ES (1) | ES303926A1 (en) |
FR (1) | FR1388693A (en) |
GB (1) | GB1028113A (en) |
LU (1) | LU46843A1 (en) |
NL (1) | NL6410418A (en) |
-
1963
- 1963-09-10 FR FR947033A patent/FR1388693A/en not_active Expired
-
1964
- 1964-08-27 LU LU46843D patent/LU46843A1/xx unknown
- 1964-08-27 GB GB3518764A patent/GB1028113A/en not_active Expired
- 1964-09-01 BE BE652554A patent/BE652554A/xx unknown
- 1964-09-08 NL NL6410418A patent/NL6410418A/xx unknown
- 1964-09-09 CH CH1174964A patent/CH438589A/en unknown
- 1964-09-09 ES ES0303926A patent/ES303926A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
LU46843A1 (en) | 1964-10-27 |
CH438589A (en) | 1967-06-30 |
BE652554A (en) | 1964-12-31 |
FR1388693A (en) | 1965-02-12 |
NL6410418A (en) | 1965-03-11 |
ES303926A1 (en) | 1965-02-01 |
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