JPS563619A - Operating method of heat-treating furnace - Google Patents
Operating method of heat-treating furnaceInfo
- Publication number
- JPS563619A JPS563619A JP8004979A JP8004979A JPS563619A JP S563619 A JPS563619 A JP S563619A JP 8004979 A JP8004979 A JP 8004979A JP 8004979 A JP8004979 A JP 8004979A JP S563619 A JPS563619 A JP S563619A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- furnace
- atmosphere
- atmosphere 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
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 decrease the use amount of atmosphere gas by accumulating part of the atmosphere gas produced within a tank and using this for maintaining the oxygen-free atmosphere until the start of the next operation in the batch-type heat- treating furnace using atmosphere gas. CONSTITUTION:At the time of heating the materials to be treated in the heat- treating furnace 1 consisting of a heating chamber 2 and a cooling chamber 3, part of the atmosphere gas supplied from an atmosphere gas producer 10 is boosted by a compressor 13 and is accumulated in a tank 15. The remainder is supplied into the heating furnace 2 through a throttle valve 11 and flowmeter 12. When the heat treatment operation is finished and the material to be treated of the last row is conveyed into the cooling chamber 3, the operation of the gas producer 10 is stopped. Thereafter, the gas having been accumulated in the tank 15 is supplied into the furnace through a reducing valve 16, throttle valve 17, flowmeter 18 and pressure regulator 19, to maintain the inside of the furnace in an oxygen-free atmosphere until the start of the operation of the next day. Hence, the need for purging the gas in the furnace prior to starting of the operation is eliminated, and this decreases the use amount of the atmosphere gas and reduces the size of the gas producer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8004979A JPS563619A (en) | 1979-06-25 | 1979-06-25 | Operating method of heat-treating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8004979A JPS563619A (en) | 1979-06-25 | 1979-06-25 | Operating method of heat-treating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS563619A true JPS563619A (en) | 1981-01-14 |
Family
ID=13707377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8004979A Pending JPS563619A (en) | 1979-06-25 | 1979-06-25 | Operating method of heat-treating furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS563619A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104715A (en) * | 1981-12-17 | 1983-06-22 | Mazda Motor Corp | Joining of laminated sheet and reinforcing sheet |
-
1979
- 1979-06-25 JP JP8004979A patent/JPS563619A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58104715A (en) * | 1981-12-17 | 1983-06-22 | Mazda Motor Corp | Joining of laminated sheet and reinforcing sheet |
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