CN107964583A - The sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection - Google Patents
The sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection Download PDFInfo
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- CN107964583A CN107964583A CN201810064337.7A CN201810064337A CN107964583A CN 107964583 A CN107964583 A CN 107964583A CN 201810064337 A CN201810064337 A CN 201810064337A CN 107964583 A CN107964583 A CN 107964583A
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- tempering furnace
- sealing structure
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- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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- 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
- C21D1/773—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material under reduced pressure or vacuum
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- Mechanical Engineering (AREA)
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Abstract
The present invention provides a kind of sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection, is related to tempering furnace technical field.The sealing structure of vacuum high-pressure tempering furnace electrode connection includes：Cavity, cavity have the chamber of both ends open, and one of openend is used for and the furnace body outer wall palette where the heater exit of tempering furnace；Electrode, electrode are arranged in cavity, and the both ends of electrode have counterbore；Conducting wire, one end of conducting wire are connected to the indoor counterbore of chamber, and other end is used for the heater exit connection for connecting tempering furnace；Cover board, cover board are arranged at cavity and being capable of closed cavities.Vacuum high-pressure tempering furnace includes the sealing structure of furnace body and vacuum high-pressure tempering furnace electrode connection.The sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection can reduce the machining accuracy of furnace body cage connection mating part, the assembly precision between electrode and heating element so that difficulty of processing and assembly difficulty all reduce.
Description
Technical field
The present invention relates to tempering furnace technical field, in particular to a kind of the close of vacuum high-pressure tempering furnace electrode connection
Seal structure and vacuum high-pressure tempering furnace.
Background technology
The complex art that vacuum heat, that is, vacuum technique is combined with being heat-treated two specialties, refers to heat treatment process
All carried out under vacuum conditions with part.
Vacuum heat furnace thermal efficiency it is high, it can be achieved that be rapidly heated and cool down, it can be achieved that non-oxidation, without decarburization, without carburizing,
The phosphorus bits of workpiece surface can be removed, and have the effect such as degreasing degasification, so as to reach the effect of surface-brightening purification.
Vacuum heat treatment furnace is the advanced Equipment for Heating Processing for obtaining large development in recent years, and workpiece is in super hypobaric sky
Between in heated and cooled down.It has the advantages that good quality, energy saving, safety and pollution are few.
Current vacuum heat treatment furnace uses Hard link more in the design that electrode is connected with power line, adds in Hard link and stove
Thermal element and electrode using is threadedly coupled, hole axle cooperation etc. is directly connected to mode.
Above-mentioned design is high to the requirement on machining accuracy of furnace body cage connection mating part, the dress between electrode and heating element
With required precision height so that difficulty of processing and assembly difficulty are larger.
The content of the invention
It is an object of the invention to provide a kind of sealing structure of vacuum high-pressure tempering furnace electrode connection, it can reduce stove
Body case connects the machining accuracy of mating part, the assembly precision between electrode and heating element so that difficulty of processing and assembling
Difficulty all reduces.
Another object of the present invention is to provide a kind of vacuum high-pressure tempering furnace, it includes above-mentioned vacuum high-pressure tempering
The sealing structure of stove electrode connection, it has the complete characteristic of the sealing structure of the vacuum high-pressure tempering furnace electrode connection.
What the embodiment of the present invention was realized in：
The embodiment provides a kind of sealing structure of vacuum high-pressure tempering furnace electrode connection, including：
Cavity, the cavity have the chamber of both ends open, and one of openend is used to draw with the heater of tempering furnace
Furnace body outer wall palette where outlet；
Electrode, the electrode are arranged in the cavity, and the both ends of the electrode have counterbore, one of them described counterbore position
In in the chamber；
Conducting wire, one end of the conducting wire are connected to the indoor counterbore of the chamber, and other end is used to connect tempering furnace
Heater exit connection；With
Cover board, the cover board are arranged at the cavity and can close the opening of the remote furnace body outer wall of the cavity
End.
, can be with addition, the sealing structure of the vacuum high-pressure tempering furnace electrode connection provided according to an embodiment of the invention
With technical characteristic additional as follows：
In the alternative embodiment of the present invention, the counterbore has the screw thread that can be spirally connected with conducting wire.
In the alternative embodiment of the present invention, the sealing structure of the vacuum high-pressure tempering furnace electrode connection further includes use
First seal made of polytetrafluoroethylene (PTFE), the first seal are arranged at the installation place of the electrode.
In the alternative embodiment of the present invention, the quantity of the first seal is two, one of them is described first close
What sealing was arranged at the electrode is located at the indoor part of the chamber, another described first seal is arranged at the electrode
The part outside the chamber.
In the alternative embodiment of the present invention, the sealing structure of the vacuum high-pressure tempering furnace electrode connection includes being used to pacify
Fill the mounting base cylinder and locking nut of the electrode, the mounting base cylinder, which is fixed, is arranged in the cavity, and two described first close
Sealing is respectively arranged at the both ends of the mounting base cylinder, and the electrode is arranged in the mounting base along the axial direction of the mounting base cylinder
Cylinder, the locking nut and the electrode are connected positioned at the indoor threaded one end of the chamber and make the electrode compared to described
Cavity is fixed.
In the alternative embodiment of the present invention, the table positioned at the end face of the side of the exterior thereto of the mounting base cylinder
Surface roughness is more than 3.6.
In the alternative embodiment of the present invention, the sealing structure of the vacuum high-pressure tempering furnace electrode connection further includes second
Seal, the close cover board side of the cavity are provided with the seal groove coordinated with the second seal, and described second
Seal is arranged in the seal groove.
In the alternative embodiment of the present invention, the sealing structure of the vacuum high-pressure tempering furnace electrode connection further includes hinge
Mechanism, the linkage include the first articulated section, the second articulated section and articulated shaft, and first articulated section is arranged at the chamber
Body, second articulated section are arranged at the cover board, and first articulated section and second articulated section pass through the articulated shaft
Connection, the cover board are hinged with the cavity by the linkage.
In the alternative embodiment of the present invention, the side of the remote furnace body outer wall of the cavity has sealing flange, described
Cover board is fixedly connected with the cavity by the sealing flange.
The embodiment provides a kind of vacuum high-pressure tempering furnace, including furnace body and the vacuum described in any of the above-described
The sealing structure of high pressure tempering furnace electrode connection, the sealing structure of the vacuum high-pressure tempering furnace electrode connection are arranged at the stove
The outer surface of body.
The beneficial effects of the invention are as follows：
The sealing structure of vacuum high-pressure tempering furnace electrode connection coordinates furnace body outer wall by cavity, electrode, conducting wire, cover board
So that stove internal heater connection structure is independently opened with electrode sealing construction so that applies the vacuum high-pressure tempering of the sealing structure
Stove, when greatly reducing using multigroup heating element, the manufacture difficulty of electrode connecting flange part；Effectively reduce equipment
Assembly difficulty in assembling process；The sealing performance being effectively guaranteed at vacuum equipment electrode；Effectively reduce electrode maintenance
When difficulty of construction；External cabling when needing independent control that solve thes problems, such as vacuum heat treatment equipment multigroup heater.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the schematic diagram of the sealing structure for the vacuum high-pressure tempering furnace electrode connection that the embodiment of the present invention 1 provides；
Fig. 2 is the sectional view of Fig. 1.
Icon：The sealing structure of 100- vacuum high-pressure tempering furnace electrode connections；1- electrodes；2- first seals；3- is installed
Seat cylinder；4- cavitys；5- cover boards；6- locking nuts；7- conducting wires；8- heater exits；9- second seals；10- linkages.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention implementation being usually described and illustrated herein in the accompanying drawings
The component of example can be arranged and designed with a variety of configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this area is common
Technical staff's all other embodiments obtained without creative efforts, belong to the model that the present invention protects
Enclose.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it is necessary to which explanation, the orientation or position relationship of " preceding " instruction of term are based on attached drawing
Shown orientation or position relationship, or the invention product using when the orientation usually put or position relationship, merely to
Easy to describe the present invention and simplify description, rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second " etc.
It is only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can be
Mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be two
Connection inside element.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the present invention
In concrete meaning.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with or below second feature
Directly contacted including the first and second features, can also include the first and second features not be direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above to include fisrt feature special second
Directly over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
Embodiment 1
Referring to Fig.1 and 2, a kind of sealing structure 100 of vacuum high-pressure tempering furnace electrode connection is present embodiments provided,
Including：
Cavity 4, cavity 4 have the chamber of both ends open, and one of openend is used to draw with the heater of tempering furnace
Furnace body outer wall palette where end 8；
Electrode 1, electrode 1 are arranged in cavity 4, and the both ends of electrode 1 have counterbore, and one of counterbore is located in chamber；
Conducting wire 7, one end of conducting wire 7 are connected to the indoor counterbore of chamber, and the heater that other end is used to connect tempering furnace draws
Outlet 8 connects；With
Cover board 5, cover board 5 are arranged at cavity 4 and are capable of the openend of the remote furnace body outer wall of closed cavity 4.
Specifically, counterbore has the screw thread that can be spirally connected with conducting wire 7.One counterbore is connected with conducting wire 7, and another is heavy
Kong Ze is used to access power line.
Specifically, conducting wire 7 is the heat safe connecting line that is flexible coupling, in the present embodiment, using asbestos conducting wire.
Specifically, the electrode 1 of the present embodiment is copper electrode.
Specifically, the sealing structure 100 of vacuum high-pressure tempering furnace electrode connection is further included using made of polytetrafluoroethylene (PTFE)
First seal 2, first seal 2 are arranged at the installation place of electrode 1.
It is that the quantity of first seal 2 is two, and one of first seal 2 is arranged at electrode 1 in more detail
Positioned at the indoor part of chamber, another first seal 2 is arranged at the part outside chamber of electrode 1.
In order to make installation and sealing more reliable, the sealing structure 100 of vacuum high-pressure tempering furnace electrode connection includes being used for
The mounting base cylinder 3 and locking nut 6 of electrode 1 are installed, mounting base cylinder 3 is fixed and is arranged in cavity 4, and two first seals 2 are distinguished
The both ends of mounting base cylinder 3 are arranged at, the axial direction of electrode 1 along mounting base cylinder 3 is arranged in mounting base cylinder 3, locking nut 6 and electrode 1
Positioned at the connection of chamber indoor threaded one end and electrode 1 is fixed compared to cavity 4.
In addition, the surface roughness positioned at the end face of the side of exterior thereto of mounting base cylinder 3 is more than 3.6.
Requirement to roughness, enables to electrode 1 not skid when screwing on locking nut 6, so just so that electrode 1
It can either be stably fixed on cavity 4, and fixed validity and better tightness can be made.
The sealing structure 100 of vacuum high-pressure tempering furnace electrode connection further includes second seal 9, the close cover board 5 of cavity 4
Side is provided with the seal groove coordinated with second seal 9, and second seal 9 is arranged in seal groove.
Second seal 9 is O-ring seal, and slightly protruding is in seal groove when in embedding sealing groove, so in 5 envelope of cover board
During closed chamber room, it can be extruded by cover board 5, so as to ensure a good sealing effect so that chamber becomes an individually sealing
Presence.
In the present embodiment, the sealing structure 100 of vacuum high-pressure tempering furnace electrode connection further includes linkage 10, hinge
Mechanism 10 includes the first articulated section, the second articulated section and articulated shaft, and the first articulated section is arranged at cavity 4, and the second articulated section is set
In cover board 5, the first articulated section and the second articulated section are hinged by linkage 10 with cavity 4 by hinged axis connection, cover board 5.
So when needing to open cover board 5, cover board 5 can be turned over downwards, and keep the connection with cavity 4, so that
Obtain chamber to open, be convenient for the maintenance construction of electrode 1.After processing is completed, directly cover board 5 is flipped up, retightened i.e.
Can.Such mode is more time saving and energy saving, and without as that mode separated with cavity 4 of cover board 5 is hard.
In addition, the side of the remote furnace body outer wall of cavity 4 has sealing flange, cover board 5 is consolidated with cavity 4 by sealing flange
Fixed connection.
The so reliable structure of flange, can cause the installation of cover board 5 more firm and reliable.
And in order to make cavity 4 and the connection of furnace body outer wall more reliable, also it has been uniformly arranged in the both sides up and down of cavity 4 more
A stiffener plate, one side of stiffener plate are connected with the side wall of cavity 4, one end of stiffener plate and the remote cover board of sealing flange
5 side connection, the other end of stiffener plate are connected with furnace body outer wall.
By this series of reinforcement, the reliability of the entirety of sealing structure 100 of vacuum high-pressure tempering furnace electrode connection is more
It is good, so as to allow operating personnel stably to exercise its function.
The principle of the present embodiment is：
In view of the various shortcoming of the prior art, the present invention devises a kind of sealing of vacuum high-pressure tempering furnace electrode connection
Structure 100.
By the sealing structure 100 of the vacuum high-pressure tempering furnace electrode connection, by electrode and stove in vacuum high-pressure tempering furnace
Internal heater connection structure is independently opened with electrode sealing construction.
Cavity 4 has constructed a single chamber, joining cover plate 5 and corresponding containment member on furnace body outer wall, makes
The leakproofness for obtaining chamber is ensured.
One end of conducting wire 7 is assembled with heater exit 8, is fastened, and other end is assembled with electrode 1, fastened.It is more for having
For the vacuum equipment stove of group heating element, can the accordingly consistent electrode 1 of installation number on cavity 4, supporting same number
Such as conducting wire 7, mounting base cylinder 3 and locking nut 6 etc. the component of amount, then successively by all heater exits 8 with
Electrode 1 is assembled, fastened.
After the assembling of all heater exits 8 and electrode 1 is completed, fasten work, recycling linkage 10,
O-ring seal closes cover board 5, and cavity 4 is sealed.
After completing this sequence of operations, it is possible to be independently completed the connection of power line in the outside of cavity 4.
In this way, and it is not high for the requirement on machining accuracy of furnace body cage connection mating part, assembly precision also greatly drops
It is low, just greatly reduce the difficulty of processing of component and the assembly difficulty of equipment.
The benefit of the present embodiment is：
1st, the system of the vacuum high-pressure tempering furnace top electrode connecting flange part using multigroup heating element is greatly reduced
Make difficulty.
2nd, the assembly difficulty in equipment assembling process is effectively reduced.
3rd, the sealing performance being effectively guaranteed at vacuum equipment electrode 1.
4th, difficulty of construction when electrode 1 overhauls is effectively reduced.
5th, external cabling when needing independent control that solve thes problems, such as vacuum heat treatment equipment multigroup heater.
Embodiment 2
Present embodiments provide a kind of vacuum high-pressure tempering furnace, including the vacuum high-pressure tempering furnace in furnace body and embodiment 1
The sealing structure 100 of electrode connection, the sealing structure 100 of vacuum high-pressure tempering furnace electrode connection are arranged at the outer surface of furnace body.
By using the sealing structure 100 of vacuum high-pressure tempering furnace electrode connection, the difficulty of processing of furnace body manufacturer is able to
Reduce.Vacuum high-pressure tempering furnace is easier to assemble, the good seal performance at electrode 1, and easy access.For there is multigroup heater
Vacuum high-pressure tempering furnace for, heater can be more simple with independent control, wiring.
In conclusion the present invention vacuum high-pressure tempering furnace electrode connection sealing structure 100 by cavity 4, electrode 1,
Conducting wire 7, cover board 5, coordinate furnace body outer wall that stove internal heater connection structure is independently opened with electrode sealing construction so as to apply
The vacuum high-pressure tempering furnace of the sealing structure, when greatly reducing using multigroup heating element, electrode connecting flange part
Manufacture difficulty；Effectively reduce the assembly difficulty in equipment assembling process；It is effectively guaranteed close at vacuum equipment electrode 1
Sealing property；Effectively reduce difficulty of construction when electrode 1 overhauls；Efficiently solving the multigroup heater of vacuum heat treatment equipment needs solely
During vertical control the problem of external cabling.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, for the skill of this area
For art personnel, the invention may be variously modified and varied.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
- A kind of 1. sealing structure of vacuum high-pressure tempering furnace electrode connection, it is characterised in that including：Cavity, the cavity have the chamber of both ends open, and one of openend is used for the heater exit with tempering furnace The furnace body outer wall palette at place；Electrode, the electrode are arranged in the cavity, and the both ends of the electrode have counterbore, one of them described counterbore is located at institute State in chamber；Conducting wire, one end of the conducting wire are connected to the indoor counterbore of the chamber, and other end is used to connect adding for tempering furnace Hot device exit connection；WithCover board, the cover board are arranged at the cavity and can close the openend of the remote furnace body outer wall of the cavity.
- 2. the sealing structure of vacuum high-pressure tempering furnace electrode connection according to claim 1, it is characterised in that the counterbore With the screw thread that can be spirally connected with conducting wire.
- 3. the sealing structure of vacuum high-pressure tempering furnace electrode connection according to claim 1, it is characterised in that the vacuum The sealing structure of high pressure tempering furnace electrode connection is further included using first seal made of polytetrafluoroethylene (PTFE), first sealing Part is arranged at the installation place of the electrode.
- 4. the sealing structure of vacuum high-pressure tempering furnace electrode connection according to claim 3, it is characterised in that described first The quantity of seal is two, and what one of them described first seal was arranged at the electrode is located at the indoor portion of the chamber Point, another described first seal is arranged at the part outside the chamber of the electrode.
- 5. the sealing structure of vacuum high-pressure tempering furnace electrode connection according to claim 4, it is characterised in that the vacuum The sealing structure of high pressure tempering furnace electrode connection includes being used for the mounting base cylinder and locking nut for installing the electrode, the installation Seat cylinder, which is fixed, is arranged in the cavity, and two first seals are respectively arranged at the both ends of the mounting base cylinder, the electricity The axial direction of pole along the mounting base cylinder is arranged in the mounting base cylinder, and the locking nut is located at the chamber with the electrode Interior threaded one end connects and the electrode is fixed compared to the cavity.
- 6. the sealing structure of vacuum high-pressure tempering furnace electrode connection according to claim 5, it is characterised in that the installation The surface roughness positioned at the end face of the side of the exterior thereto of seat cylinder is more than 3.6.
- 7. the sealing structure of vacuum high-pressure tempering furnace electrode connection according to claim 1, it is characterised in that the vacuum The sealing structure of high pressure tempering furnace electrode connection further includes second seal, and the close cover board side of the cavity is provided with The seal groove coordinated with the second seal, the second seal are arranged in the seal groove.
- 8. the sealing structure of vacuum high-pressure tempering furnace electrode connection according to claim 1, it is characterised in that the vacuum The sealing structure of high pressure tempering furnace electrode connection further includes linkage, and the linkage includes the first articulated section, the second hinge Socket part and articulated shaft, first articulated section are arranged at the cavity, and second articulated section is arranged at the cover board, and described One articulated section and second articulated section pass through the linkage by the hinged axis connection, the cover board with the cavity It is hinged.
- 9. the sealing structure of vacuum high-pressure tempering furnace electrode connection according to claim 1, it is characterised in that the cavity The side of remote furnace body outer wall there is sealing flange, the cover board is fixedly connected with the cavity by the sealing flange.
- 10. a kind of vacuum high-pressure tempering furnace, it is characterised in that high including furnace body and claim 1-9 any one of them vacuum The sealing structure of stove electrode connection is pushed back, the sealing structure of the vacuum high-pressure tempering furnace electrode connection is arranged at the furnace body Outer surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064337.7A CN107964583A (en) | 2018-01-23 | 2018-01-23 | The sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810064337.7A CN107964583A (en) | 2018-01-23 | 2018-01-23 | The sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection |
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| Publication Number | Publication Date |
|---|---|
| CN107964583A true CN107964583A (en) | 2018-04-27 |
Family
ID=61994152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810064337.7A Pending CN107964583A (en) | 2018-01-23 | 2018-01-23 | The sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023174323A1 (en) * | 2022-03-15 | 2023-09-21 | 眉山博雅新材料股份有限公司 | Sealing structure and vacuum furnace |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256061A (en) * | 1992-03-02 | 1993-10-26 | Cress Steven B | Method and apparatus for vacuum furnace with self sealing expansion door members |
| CN204286611U (en) * | 2014-12-04 | 2015-04-22 | 北京华海中谊工业炉有限公司 | The even let-off gear(stand) of a kind of verification |
| CN207918917U (en) * | 2018-01-23 | 2018-09-28 | 江苏石川岛丰东真空技术有限公司 | The sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection |
-
2018
- 2018-01-23 CN CN201810064337.7A patent/CN107964583A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5256061A (en) * | 1992-03-02 | 1993-10-26 | Cress Steven B | Method and apparatus for vacuum furnace with self sealing expansion door members |
| CN204286611U (en) * | 2014-12-04 | 2015-04-22 | 北京华海中谊工业炉有限公司 | The even let-off gear(stand) of a kind of verification |
| CN207918917U (en) * | 2018-01-23 | 2018-09-28 | 江苏石川岛丰东真空技术有限公司 | The sealing structure and vacuum high-pressure tempering furnace of vacuum high-pressure tempering furnace electrode connection |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023174323A1 (en) * | 2022-03-15 | 2023-09-21 | 眉山博雅新材料股份有限公司 | Sealing structure and vacuum furnace |
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