JPH0392758U - - Google Patents
Info
- Publication number
- JPH0392758U JPH0392758U JP15283489U JP15283489U JPH0392758U JP H0392758 U JPH0392758 U JP H0392758U JP 15283489 U JP15283489 U JP 15283489U JP 15283489 U JP15283489 U JP 15283489U JP H0392758 U JPH0392758 U JP H0392758U
- Authority
- JP
- Japan
- Prior art keywords
- gas
- atmospheric
- charging
- heat treatment
- gas supply
- 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
- 239000007789 gas Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 6
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims 1
- 229910052757 nitrogen Inorganic materials 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 1
Landscapes
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Details (AREA)
Description
第１図は大気遮断装置を備えた雰囲気熱処理炉
の一例を示す概略断面図、第２図はこの考案によ
る雰囲気熱処理炉の大気遮断装置の一実施例を示
す概略説明図、第３図は第２図の線Ａ−Ａにおけ
る断面図、第４図はこの大気遮断装置の装入取出
扉が閉鎖した状態を示す概略説明図、及び第５図
はこの大気遮断装置の装入取出扉が開放した状態
を示す概略説明図、及び第６図は従来の雰囲気熱
処理炉の大気遮断装置の一例を示す概略説明図で
ある。
１……装入取出扉、２……ガス噴出管、３……
ガス噴出口、４……空気直接分離窒素ガス発生装
置、５……ガス供給管、６……バルブ、７……手
動コツク、８……シリンダ、９……装入取出口、
１０……熱処理炉。
FIG. 1 is a schematic cross-sectional view showing an example of an atmosphere heat treatment furnace equipped with an atmosphere cut-off device, FIG. 2 is a cross-sectional view taken along line A-A in Figure 2, Figure 4 is a schematic explanatory diagram showing the charging/unloading door of this atmospheric isolation device in a closed state, and Figure 5 is a diagram showing the loading/unloading door of this atmospheric blocking device in an open state. FIG. 6 is a schematic explanatory diagram showing an example of an atmosphere shielding device for a conventional atmosphere heat treatment furnace. 1...Charging/unloading door, 2...Gas ejection pipe, 3...
Gas outlet, 4... Air direct separation nitrogen gas generator, 5... Gas supply pipe, 6... Valve, 7... Manual cock, 8... Cylinder, 9... Charging/unloading port,
10...Heat treatment furnace.
Claims (1)
けた装入取出扉、前記装入取出口の下方に配置し
てガスカーテンを形成する多数のガス噴出口を有
するガス噴出管、該ガス噴出管にガス供給管を通
じて窒素ガスを供給するための窒素ガス供給手段
、及び前記ガス供給管途中に配置し且つ前記装入
取出扉の開放指令に応答して開弁するバルブ、 を有する雰囲気熱処理炉の大気遮断装置。 (2) 前記窒素ガス供給手段は空気から窒素を直
接分離する分離膜を備えた空気直接分離窒素ガス
発生装置である請求項１に記載の雰囲気熱処理炉
の大気遮断装置。 (3) 前記ガス供給管途中に手動コツクを配置し
た請求項１に記載の雰囲気熱処理炉の大気遮断装
置。[Claims for Utility Model Registration] (1) A charging/unloading door provided for opening/closing a charging/unloading port for heat-treated parts, and a large number of gas jets arranged below the charging/unloading port to form a gas curtain. a gas ejection pipe having an outlet; a nitrogen gas supply means for supplying nitrogen gas to the gas ejection pipe through a gas supply pipe; An atmospheric shutoff device for an atmospheric heat treatment furnace, comprising a valve that opens. (2) The atmospheric isolation device for an atmospheric heat treatment furnace according to claim 1, wherein the nitrogen gas supply means is an air direct separation nitrogen gas generator equipped with a separation membrane that directly separates nitrogen from air. (3) The atmosphere shutoff device for an atmospheric heat treatment furnace according to claim 1, further comprising a manual handle placed in the middle of the gas supply pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15283489U JPH0392758U (en) | 1989-12-30 | 1989-12-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15283489U JPH0392758U (en) | 1989-12-30 | 1989-12-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0392758U true JPH0392758U (en) | 1991-09-20 |
Family
ID=31699074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15283489U Pending JPH0392758U (en) | 1989-12-30 | 1989-12-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0392758U (en) |
-
1989
- 1989-12-30 JP JP15283489U patent/JPH0392758U/ja active Pending
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