JPS5665904A - Atmosphere heating furnace - Google Patents
Atmosphere heating furnaceInfo
- Publication number
- JPS5665904A JPS5665904A JP14119979A JP14119979A JPS5665904A JP S5665904 A JPS5665904 A JP S5665904A JP 14119979 A JP14119979 A JP 14119979A JP 14119979 A JP14119979 A JP 14119979A JP S5665904 A JPS5665904 A JP S5665904A
- Authority
- JP
- Japan
- Prior art keywords
- sintering
- sloped path
- outlet
- atmosphere
- furnace
- 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
Links
Abstract
PURPOSE: To maintain an in-furnace atmosphere at high purity by providing an atmospheric air shielding outlet sloped path to the outlet end of a heating furnace for sintering of Al powder metallurgical parts, and providing an outlet shutter which opens and closes in response to the passage of the treating objects in said sloped path.
CONSTITUTION: Al powder metallurgical parts 1 are passed through the inside of a dewaxing part 3, a sintering part 4, and a cooling part 5 by means of conveyors 20, 21, whereby they are sintered. In this case, N2, H2 and cracking NH3 gas are admitted through atmosphere gas lead-in ports 13, 14, and the parts are heated by Ni-Cr wire heating coils 8, 9, and are thereby subjected to dewaxing and sintering, then they are cooled in the cooling part 5 provided with a water cooling jacket 10, after which they are taken out. An atmospheric air shielding sloped path 31 and an outlet shutter 32 are mounted to the outlet end of the heating furnace. An atmosphere gas lead-in pipe 34 is connected to the sloped path 31 as well and limit switches 35, 36 are operated by the sintered products 1 slipping down on the sloped path 31, whereby the atmosphere gases are admitted; at the same time, the outlet shutter 32 is opened and the products are taken out. In this way, the entry of the atmospheric air into the furnace is prevented and sintering action is accomplished perfectly.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54141199A JPS583192B2 (en) | 1979-11-02 | 1979-11-02 | Atmosphere heating furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP54141199A JPS583192B2 (en) | 1979-11-02 | 1979-11-02 | Atmosphere heating furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5665904A true JPS5665904A (en) | 1981-06-04 |
JPS583192B2 JPS583192B2 (en) | 1983-01-20 |
Family
ID=15286448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP54141199A Expired JPS583192B2 (en) | 1979-11-02 | 1979-11-02 | Atmosphere heating furnace |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS583192B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112556405A (en) * | 2020-12-14 | 2021-03-26 | 株洲瑞德尔冶金设备制造有限公司 | Sintering furnace dewaxing structure and sintering furnace |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5412902A (en) * | 1977-04-30 | 1979-01-31 | Hell Rudolf Dr Ing Gmbh | Device for indicating excessive modification in electronic color modification |
-
1979
- 1979-11-02 JP JP54141199A patent/JPS583192B2/en not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5412902A (en) * | 1977-04-30 | 1979-01-31 | Hell Rudolf Dr Ing Gmbh | Device for indicating excessive modification in electronic color modification |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112556405A (en) * | 2020-12-14 | 2021-03-26 | 株洲瑞德尔冶金设备制造有限公司 | Sintering furnace dewaxing structure and sintering furnace |
CN112556405B (en) * | 2020-12-14 | 2022-06-03 | 株洲瑞德尔智能装备有限公司 | Sintering furnace dewaxing structure and sintering furnace |
Also Published As
Publication number | Publication date |
---|---|
JPS583192B2 (en) | 1983-01-20 |
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