JPS569325A - Atmospheric gas for heat treatment furnace - Google Patents
Atmospheric gas for heat treatment furnaceInfo
- Publication number
- JPS569325A JPS569325A JP8430879A JP8430879A JPS569325A JP S569325 A JPS569325 A JP S569325A JP 8430879 A JP8430879 A JP 8430879A JP 8430879 A JP8430879 A JP 8430879A JP S569325 A JPS569325 A JP S569325A
- Authority
- JP
- Japan
- Prior art keywords
- heat treatment
- treatment furnace
- atmospheric gas
- mixed gas
- heat
- 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.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
PURPOSE:To raise the heating and cooling efficiencies of a heat treatment furnace by using a CO2-based CO2+H2 mixed gas as the atmospheric gas at a heat treatment furnace for a metal material. CONSTITUTION:In the heat treatment of iron steel, non-ferrous metal materials, etc., in a heat treatment furnace, a mixed gas consisting of CO2>90% and the remnant H2 is used as an atmospheric gas. Because the mixed gas has a heat capacity 1.41 times higher than and a heat conductivity 1.34 times higher than the conventional atmospheric gases at 500 deg.C, the heat treatment furnace of even shorter length can attain heating and cooling effects similar to those of the conventional ones. Thus, the heat treatment furnace can be miniaturized and also the conservation of energy can be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8430879A JPS569325A (en) | 1979-07-02 | 1979-07-02 | Atmospheric gas for heat treatment furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8430879A JPS569325A (en) | 1979-07-02 | 1979-07-02 | Atmospheric gas for heat treatment furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS569325A true JPS569325A (en) | 1981-01-30 |
Family
ID=13826855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8430879A Pending JPS569325A (en) | 1979-07-02 | 1979-07-02 | Atmospheric gas for heat treatment furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS569325A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4571273A (en) * | 1983-07-05 | 1986-02-18 | Ebner-Industrieofenbau Ing. Josef Ebner Kg | Process of heating and cooling charges in batch-process industrial furnaces |
| JPWO2016189919A1 (en) * | 2015-05-26 | 2017-09-28 | 株式会社Ihi | Heat treatment equipment |
-
1979
- 1979-07-02 JP JP8430879A patent/JPS569325A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4571273A (en) * | 1983-07-05 | 1986-02-18 | Ebner-Industrieofenbau Ing. Josef Ebner Kg | Process of heating and cooling charges in batch-process industrial furnaces |
| JPWO2016189919A1 (en) * | 2015-05-26 | 2017-09-28 | 株式会社Ihi | Heat treatment equipment |
| US10648050B2 (en) | 2015-05-26 | 2020-05-12 | Ihi Corporation | Heat treatment apparatus |
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