CN202403512U - Vacuum inner container and cover sealing device for pit furnace - Google Patents
Vacuum inner container and cover sealing device for pit furnace Download PDFInfo
- Publication number
- CN202403512U CN202403512U CN2011204942155U CN201120494215U CN202403512U CN 202403512 U CN202403512 U CN 202403512U CN 2011204942155 U CN2011204942155 U CN 2011204942155U CN 201120494215 U CN201120494215 U CN 201120494215U CN 202403512 U CN202403512 U CN 202403512U
- Authority
- CN
- China
- Prior art keywords
- sealing
- inner container
- copper ring
- lid
- cover
- 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 - Fee Related
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Abstract
The utility model discloses a vacuum inner container and cover sealing device for a pit furnace, which comprises an inner container and a cover. A sealing groove is arranged at the upper edge of the outer side of the inner container, a ring rib is arranged at the outer edge of the cover, a gas channel is arranged on the cover, a valve is arranged on the gas channel, a sealing copper ring is arranged on the wall of the sealing groove contacting with the inner container, the horizontal height of the sealing copper ring is slightly larger than that of the inner wall of the inner container, and the inner surface of the cover contacts with the sealing copper ring. The sealing device has the advantages of simple structure, convenience in operation, low cost and fine sealing performance.
Description
Technical field
The utility model relates to stainless steel hot treatment facility field, relates in particular to a kind of shaft furnace vacuum liner cap sealing, is mainly used in the heat treatment under the small lot vacuum states such as corrosion resistant alloy, Precise Alloy, titanium alloy, memorial alloy and non-crystalline material.
Background technology
During stainless steel surfaces heat treatment, under the aerobic situation, the high-temperature oxydation phenomenon can take place, cause stainless steel surfaces pickling difficulty.The heat treatment of general stainless steel material is in vacuum drying oven or shaft furnace, to carry out, and is after whole body of heater is vacuumized, and charges into the control of infiltration layer gas continuously and handles to obtain surperficial infiltration layer, and its complex equipments and treating capacity require big, otherwise cost is very high.But during small lot heat treatments such as some corrosion resistant alloys, Precise Alloy, titanium alloy, memorial alloy and non-crystalline material; Need heat-treat with shaft furnace, but existing shaft furnace vacuum liner cap sealing, or poorly sealed; Complex structure, equipment cost are very high.
Summary of the invention
It is not enough be to solve prior art, the utility model provide a kind of simple in structure, easy to operate, equipment cost is low, the shaft furnace vacuum liner cap sealing of good seal.
The utility model adopts following technical scheme: a kind of shaft furnace vacuum liner cap sealing; Comprise inner bag, lid; Upper edge, the inner bag outside is provided with a circle seal groove, and the outer of lid is provided with the ring muscle, covers to be provided with gas passage; Gas passage is provided with valve; It is characterized in that: described seal groove is provided with the sealing copper ring with the wall that contacts of inner bag, and the level height of the described sealing copper ring that sets is a little more than the level height of inner bag inwall, and described interior surface contacts with described sealing copper ring.
Described covering also is provided with safeties.
A kind of shaft furnace vacuum liner of the utility model cap sealing is owing to interior surface contacts with described sealing copper ring, under the self gravitation and action of negative pressure of lid; Lid flat press seal copper ring; Because of copper ring has bigger surface strength and plasticity, under the state of bleeding, the inner bladder cover surface contacts with copper ring; The matsurface of inner bladder cover contact surface is pressed into the copper ring face; Make the copper ring surface plastic deformation take place and interlock each other, the pressure of inner bag is reduced to certain pressure (negative pressure) valve-off, reaches the effect of sealing.
The utlity model has following technique effect: simple in structure, easy to operate, equipment cost is low, good seal.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Sequence number among the figure: 1, inner bag; 2, lid; 3, air pipe passway; 4, valve; 5, ring muscle; 6, seal groove; 7, sealing copper ring; 8, safeties.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described further.
As shown in Figure 1, a kind of shaft furnace vacuum liner cap sealing comprises inner bag 1, lid 2; Upper edge, inner bag 1 outside is provided with a circle seal groove 6, and the outer of lid 2 is provided with ring muscle 5, and lid 2 is provided with gas passage 3; Gas passage 3 is provided with valve 4; Described seal groove 6 is provided with sealing copper ring 7 with the wall that contacts of inner bag 1, and the level height of the described sealing copper ring 7 that sets is a little more than the level height of inner bag 1 inwall, and described interior surface contacts with described sealing copper ring; Also be provided with safeties 8 on the described lid 2.
More than specified the embodiment of the utility model, but this instance of just lifting for the ease of understanding should not be considered to be the restriction to the utility model scope.Equally; Any person of ordinary skill in the field all can be according to the technical scheme of the utility model and the description of preferred embodiment thereof; Make various possible being equal to and change or replacement, but all these changes or replacement all should belong to the protection domain of the utility model claim.
Claims (2)
1. shaft furnace vacuum liner cap sealing; Comprise inner bag (1), lid (2); Upper edge, inner bag (1) outside is provided with a circle seal groove ⑹, and the outer of lid (2) is provided with ring muscle ⑸, and lid (2) is provided with gas passage ⑶; Gas passage ⑶ is provided with valve ⑷; It is characterized in that: described seal groove ⑹ is provided with sealing copper ring ⑺ with the wall that contacts of inner bag (1), and the level height of the described sealing copper ring ⑺ that sets is a little more than the level height of inner bag (1) inwall, and described lid (2) inner surface contacts with described sealing copper ring ⑺.
2. a kind of shaft furnace vacuum liner cap sealing according to claim 1, it is characterized in that: described lid also is provided with safeties ⑻ on (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204942155U CN202403512U (en) | 2011-12-02 | 2011-12-02 | Vacuum inner container and cover sealing device for pit furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204942155U CN202403512U (en) | 2011-12-02 | 2011-12-02 | Vacuum inner container and cover sealing device for pit furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202403512U true CN202403512U (en) | 2012-08-29 |
Family
ID=46701154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204942155U Expired - Fee Related CN202403512U (en) | 2011-12-02 | 2011-12-02 | Vacuum inner container and cover sealing device for pit furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202403512U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400934A (en) * | 2015-11-23 | 2016-03-16 | 苏州市职业大学 | Vertical type hardening furnace |
-
2011
- 2011-12-02 CN CN2011204942155U patent/CN202403512U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105400934A (en) * | 2015-11-23 | 2016-03-16 | 苏州市职业大学 | Vertical type hardening furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120829 Termination date: 20121202 |