CN211626049U - Electrode limiting insulation type ultra-high temperature vacuum sintering furnace - Google Patents
Electrode limiting insulation type ultra-high temperature vacuum sintering furnace Download PDFInfo
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- CN211626049U CN211626049U CN201922422544.8U CN201922422544U CN211626049U CN 211626049 U CN211626049 U CN 211626049U CN 201922422544 U CN201922422544 U CN 201922422544U CN 211626049 U CN211626049 U CN 211626049U
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Abstract
The scheme provides an electrode limiting insulation type ultra-high temperature vacuum sintering furnace, which comprises a furnace body and an electrode assembly arranged on the furnace body, wherein the furnace body comprises a furnace barrel, a heat shield and a heater, the electrode assembly comprises an electrode, an insulating part and a locking part, the electrode comprises an outer side section, a sealing section and an inner side section which are sequentially connected from outside to inside, the locking part is connected with the end part of the outer side section, the inner side section is clamped with the side wall of the furnace barrel, the insulating part is clamped between the sealing section and the through hole of the furnace barrel to insulate the electrode and the furnace barrel, the insulating part is an insulator, the insulating part is clamped between the sealing section of the electrode and the furnace barrel and is sleeved on the outer wall of the sealing section and then is in mechanical contact with the furnace barrel, so that the non-contact gap between the sealing section and the furnace barrel can be reduced, residual air or impurities in vacuum pumping can be, the through hole penetrating through the electrode can be plugged, the sealing performance between the electrode and the furnace barrel is enhanced, and pressure relief is avoided.
Description
Technical Field
The utility model relates to an ultra-high temperature fritting furnace technical field especially relates to a spacing insulating formula ultra-high temperature vacuum fritting furnace of electrode.
Background
In the industry, the sintering furnace is divided into a high-temperature vacuum sintering furnace and an ultrahigh-temperature vacuum sintering furnace, generally, the sintering temperature reaches 1000 ℃, the sintering furnace is a high-temperature vacuum sintering furnace, the sintering temperature reaches 1900 ℃, the sintering furnace is an ultrahigh-temperature vacuum sintering furnace, the sintering furnace in the patent can reach 2600 ℃, and the sintering furnace belongs to an excellent ultrahigh-temperature vacuum sintering furnace.
In the ultra-high temperature sintering furnace, the vacuum degree and temperature in the furnace have strict requirements during sintering, and the tightness of the furnace body is an important factor influencing the vacuum degree and temperature. The electrode passes through the furnace cylinder, and the through hole is arranged on the furnace cylinder, so that the electrode becomes a weak position for pressure relief and also becomes a position easy for electric leakage.
Disclosure of Invention
It is necessary to provide an electrode limit insulation type ultrahigh temperature vacuum sintering furnace.
The utility model provides a spacing insulating formula ultra-high temperature vacuum sintering stove of electrode, includes the furnace body and sets up the electrode subassembly on the furnace body, the furnace body includes a furnace section of thick bamboo, heat shield, heater, and the heater sets up inside the heat shield, and the heat shield sets up inside a furnace section of thick bamboo, still sets up the through-hole on a furnace section of thick bamboo, electrode subassembly includes electrode, insulating part, retaining member, the electrode is the elongated member, includes outside section, seal section, the interior section that connects gradually from the extroversion, the seal section is located the through-hole of a furnace section of thick bamboo, retaining member and outside section end connection, the lateral wall block of interior section and a furnace section of thick bamboo, the inboard end of electrode is located the inside of a furnace section of thick bamboo, the outside end is located the outside of a furnace section of thick bamboo, the insulating part block is between seal section and.
Preferably, the locking member is in threaded connection with the end of the outer section, and the outer diameter of the inner section is larger than the diameter of the sealing section, so that the sealing section is limited on the through hole of the furnace cylinder by the locking member and the inner section.
Preferably, the insulating part includes a plurality of flexible insulating rings, stereoplasm insulating ring, and flexible insulating ring is the sealing washer, and the stereoplasm insulating ring is hollow tourus, and flexible insulating ring, stereoplasm insulating ring set up at interval side by side, and the length of a plurality of flexible insulating rings, stereoplasm insulating ring after side by side is covered with the length of seal section.
Preferably, the insulating part further comprises an outer side insulating ring and an inner side insulating ring, the outer side insulating ring is arranged between the locking part and the furnace barrel, and the inner side insulating ring is arranged between the inner side section end face and the furnace barrel.
Preferably, the outer side insulating ring and the inner side insulating ring are T-shaped sleeves.
Preferably, the diameter of the inner section is larger than that of the sealing section, so that a step is formed between the outer section and the sealing section and is used for clamping with the side wall of the furnace cylinder.
Preferably, the electrode assembly further comprises a water cooling part, the water cooling part comprises a water cooling pipe and a three-way joint, a cooling long hole is formed in the electrode, the cooling long hole is communicated with the outer end of the electrode and extends inwards along the axial direction of the length of the electrode to be close to the inner end, the cooling long hole is not communicated with the inner end, one end of the water cooling pipe penetrates into the end part of the cooling long hole, the diameter of the water cooling pipe is smaller than the inner diameter of the cooling long hole, so that a channel for water and backflow is arranged between the water cooling pipe and the cooling long hole at intervals, the three-way joint is arranged at the end head of the outer section of the electrode, one joint of the three-way joint is butted with the cooling long hole at the end head of the outer section of the electrode, and a water-cooling pipe penetrates through the other joint of the three-way joint and enters the cooling long hole, and the third joint of the three-way joint is communicated with the inside of the cooling long hole to discharge water flowing back.
Preferably, the cooling slot hole is eccentrically arranged, a step surface for butting with the heater is further arranged on the side wall of the end head at the inner side of the electrode, and the cooling slot hole extends to the lower part of the step surface so as to cool the step surface and the heater connected with the step surface.
In this scheme, press from both sides between the sealing section of electrode and the stove section of thick bamboo and establish the insulating part, insulating part self is insulating material, and the cover establish after on the sealing section outer wall, and also mechanical contact between the stove section of thick bamboo, so not only can reduce the non-contact space between the two, residual air or impurity when avoiding the evacuation, can also regard as the mechanical contact of the two, the stability of reinforcing the two connection, the through-hole that can also pass the electrode carries out the shutoff, the leakproofness between reinforcing electrode and the stove section of thick bamboo avoids the pressure release.
Drawings
Fig. 1 is a schematic diagram of an electrode limiting insulation type ultrahigh-temperature vacuum sintering furnace.
Fig. 2 and 3 are a front view and a left view of the electrode.
Fig. 4 is a cross-sectional view taken along a-a in fig. 3.
Fig. 5 is a schematic view of the insulator in a compressed, sealed state. In particular, the flexible insulating ring is in a state of compensating or filling the position of poor contact between the adjacent hard element and the furnace cylinder and the electrode after being pressed and deformed.
Fig. 6 is a schematic view of the sealing connection between the electrode and the furnace tube in the prior art.
Fig. 7 is a schematic diagram of an electrode in the prior art.
In the figure: the furnace comprises a furnace body 10, a furnace tube 11, a heat shield 12, a heater 13, an electrode assembly 20, an electrode 21, an outer section 211, a sealing section 212, an inner section 213, an insulating piece 22, a flexible insulating ring 221, a hard insulating ring 222, an outer side insulating ring 223, an inner side insulating ring 224, a step surface 225, a locking piece 23, a water cooling piece 24, a water cooling pipe 241 and a three-way joint 242.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1 to 5, an embodiment of the present invention provides an electrode spacing insulation type ultra-high temperature vacuum sintering furnace, including a furnace body 10 and an electrode assembly 20 disposed on the furnace body 10, where the furnace body 10 includes a furnace tube 11, a heat shield 12, and a heater 13, the heater 13 is disposed inside the heat shield 12, the heat shield 12 is disposed inside the furnace tube 11, and a through hole is further disposed on the furnace tube 11, the electrode assembly 20 includes an electrode 21, an insulating member 22, and a locking member 23, the electrode 21 is an elongated member, and includes an outer section 211, a sealing section 212, and an inner section 213 that are sequentially connected from outside to inside, the sealing section 212 is disposed in the through hole of the furnace tube 11, the locking member 23 is connected to an end of the outer section 211, the inner section 213 is engaged with a side wall of the furnace tube 11, an inner end of the electrode 21 is disposed inside the furnace tube 11, an outer end is disposed outside the furnace tube 11, the insulating member 22 is engaged between the, to insulate the electrode 21 from the furnace tube 11, and the insulator 22 is an insulator.
In the original design, the insulating part 22 is not arranged between the through hole of the furnace tube 11 and the outer wall of the electrode 21, the electrode 21 and the furnace tube 11 are fixedly connected through the bolt between the electrode 21 and the side wall of the furnace tube 11, the electrode 21 and the inner wall of the through hole are kept not to be contacted, a fixed gap is reserved, and the gap is used as gap insulation, so that the electric leakage caused by the contact of the electrode 21 and the furnace tube 11 is avoided. In this scheme, there are many drawbacks, 1, in order to keep insulating, need to keep the gap between electrode 21 and the stove section of thick bamboo 11, when the evacuation is required to accomplish at the dress stove, this position is residual air easily, or residual impurity, so or lead to the slow release of vacuum in the furnace body 10, can't reach the preset requirement, or lead to impurity to be connected electrode 21 and stove section of thick bamboo 11, cause the electric leakage, 2, because electrode 21 is fixed with stove section of thick bamboo 11 through the lock mother and the rear end bolt of front end, the electrode 21 interlude is unsettled before 11 with the stove section of thick bamboo, contactless support, when the external lock mother is not hard up, can cause electrode 21 to rock or run the position, contact with stove section of thick bamboo 11, cause the electric leakage. See fig. 6, 7.
In this scheme, press from both sides between the seal section 212 of electrode 21 and a stove section of thick bamboo 11 and establish insulating part 22, insulating part 22 self is insulating material, and the cover establish on the outer wall of seal section 212 after, with also mechanical contact between a stove section of thick bamboo 11, so not only can reduce the non-contact space between the two, residual air or impurity when avoiding the evacuation can also regard as the mechanical contact of the two, the stability of reinforcing the two connection.
Further, the locking member 23 is screwed with the end of the outer section 211, and the outer diameter of the inner section 213 is larger than the diameter of the sealing section 212, so that the sealing section 212 is restricted on the through hole of the shaft 11 by the locking member 23 and the inner section 213.
Further, insulating part 22 includes a plurality of flexible insulating rings 221, stereoplasm insulating ring 222, and flexible insulating ring 221 is the sealing washer that the rubber material was made, and stereoplasm insulating ring 222 is the hollow torus that resin material or glass fiber material made, and flexible insulating ring 221, stereoplasm insulating ring 222 set up side by side at the interval, and the length that a plurality of flexible insulating rings 221, stereoplasm insulating ring 222 after side by side is covered with the length of seal section 212.
The sealing section 212 is sleeved with the flexible insulating rings 221 and the hard insulating rings 222, the sealing section 212 is basically covered in the length direction, so that an empty space or a gap is hardly formed between the sealing section 212 and the furnace tube 11, the void ratio between the electrode 21 and the furnace tube 11 is reduced, and when vacuum pumping is performed, the space of residual air or impurities is hardly formed, so that the problems in the prior art are avoided. In addition, the long flexible insulating ring 221 and the long hard insulating ring 222 also form a mechanical support between the electrode 21 and the furnace tube 11, so that the stability between the furnace tube 11 and the electrode 21 is further enhanced, and even if the external lock nut is loosened, the risk of contact leakage between the two does not exist.
This scheme is established on sealed section 212 and is realized insulating scheme in comparison in the cylinder cover that adopts the longer hollow insulating material of a length, and also has advantages, in this scheme, adopt separating element (flexible insulating ring 221, stereoplasm insulating ring 222) to constitute the longer insulator of length side by side, after certain component damages alone, can change alone, reduce the consumptive material cost, and flexible insulating ring and the insulating ring interval setting of stereoplasm, when stereoplasm insulating ring 222 and furnace section of thick bamboo 11, when the contact is not good between the electrode 21, the flexible piece can self take place deformation, compensate or fill adjacent stereoplasm component and furnace section of thick bamboo 11, bad position of contact between the electrode 21, make sealed effect better.
Further, the insulating member 22 further includes an outer side insulating ring 223 and an inner side insulating ring 224, the outer side insulating ring 223 is disposed between the locking member 23 and the furnace tube 11, and the inner side insulating ring 224 is disposed between the end surface of the inner section 213 and the furnace tube 11.
Further, the outer side insulating ring 223 and the inner side insulating ring 224 are T-shaped sleeves.
Further, the diameter of the inner section 213 is larger than the diameter of the sealing section 212, so that a stepped step is formed between the outer section 211 and the sealing section 212 to engage with the side wall of the furnace tube 11.
Further, the electrode assembly 20 further includes a water cooling member 24, the water cooling member 24 includes a water cooling pipe 241, a three-way joint 242, a cooling long hole is further formed in the electrode 21, the cooling long hole is communicated with the outer end of the electrode 21 and extends inwards along the length axial direction of the electrode 21 to be close to the inner end, the cooling long hole is not communicated with the inner end, one end of the water cooling pipe 241 penetrates to the end of the cooling long hole, the diameter of the water cooling pipe 241 is smaller than the inner diameter of the cooling long hole, so that a channel for water to flow back is formed between the water cooling pipe 241 and the cooling long hole at intervals, the three-way joint 242 is arranged at the end of the outer section 211 of the electrode 21, one joint of the three-way joint 242 is butted with the cooling long hole at the end of the outer section 211 of the electrode 21, so that the water cooling pipe 241 penetrates through the joint from the other joint of the three-way, to discharge the water flowing back.
Further, the cooling long holes are arranged eccentrically, that is, the axes of the cooling long holes do not coincide with the axes of the electrodes 21, a step surface 225 for abutting against the heater 13 is further arranged on the side wall of the inner end of the electrode 21, and the cooling long holes extend to the lower side of the step surface 225 so as to cool the step surface 225 and the heater 13 connected thereto. The heater 13 located in the heat shield 12 is connected to the electrode 21 through a transition connection, for example, the transition connection connected to the step surface 225 in this embodiment.
In this embodiment, in order to increase the contact area between the electrode 21 and the heater 13, the surface area of the step surface 225 needs to be increased, so that the electrode 21 occupies a certain surface area, and the joint generates heat seriously, so that in order to cool the joint, the water cooling tube 241 needs to be extended to the joint to cool the joint. In the prior art, the cooling long hole is arranged on the axis of the electrode 21, the remaining cross section of the electrode 21 is small due to the position occupied by the step surface 225, and the cooling long hole cannot extend below the step surface 225, so that the section of the electrode 21 provided with the step surface 225 cannot be cooled, and the temperature is high, and the heat generation is serious.
The embodiment of the utility model provides a module or unit in the device can merge, divide and delete according to actual need.
The above disclosure is only illustrative of the preferred embodiments of the present invention, which should not be taken as limiting the scope of the invention, but rather the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It will be understood by those skilled in the art that all or part of the above-described embodiments may be implemented and equivalents thereof may be made to the claims of the present invention while remaining within the scope of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a spacing insulating formula ultra-high temperature vacuum sintering stove of electrode which characterized in that: including furnace body and the electrode subassembly of setting on the furnace body, the furnace body includes a furnace section of thick bamboo, heat shield, heater, and the heater sets up inside the heat shield, and the heat shield sets up inside a furnace section of thick bamboo, still sets up the through-hole on a furnace section of thick bamboo, electrode subassembly includes electrode, insulating part, retaining member, the electrode is the elongated member, includes outside section, sealed section, the inside section that connects gradually from outside to inside, sealed section is located the through-hole of a furnace section of thick bamboo, retaining member and outside section end connection, the lateral wall block of inside section and a furnace section of thick bamboo, the inboard end of electrode are located the inside of a furnace section of thick bamboo, the outside end is located the outside of a furnace section of thick bamboo, the insulating part block is between sealed section and a furnace section of thick bamboo through-hole to.
2. The electrode-limiting insulating ultra-high-temperature vacuum sintering furnace according to claim 1, characterized in that: the retaining member is in threaded connection with the end part of the outer side section, and the outer diameter of the inner side section is larger than the diameter of the sealing section so as to limit the sealing section on the through hole of the furnace barrel through the retaining member and the inner side section.
3. The electrode-limiting insulating ultra-high-temperature vacuum sintering furnace according to claim 1, characterized in that: the insulating part includes a plurality of flexible insulating rings, stereoplasm insulating ring, and flexible insulating ring is the sealing washer, and the stereoplasm insulating ring is hollow tourus, and flexible insulating ring, stereoplasm insulating ring set up at interval side by side, and the length of a plurality of flexible insulating rings, stereoplasm insulating ring after side by side is covered with the length of sealed section.
4. The electrode-limiting insulating ultra-high-temperature vacuum sintering furnace according to claim 1, characterized in that: the insulating part further comprises an outer side insulating ring and an inner side insulating ring, the outer side insulating ring is arranged between the locking part and the furnace barrel, and the inner side insulating ring is arranged between the inner side section end face and the furnace barrel.
5. The electrode-limiting insulating ultra-high-temperature vacuum sintering furnace according to claim 4, wherein: the outside side insulating ring and the inside side insulating ring are T-shaped sleeves.
6. The electrode-limiting insulating ultra-high-temperature vacuum sintering furnace according to claim 1, characterized in that: the diameter of the inner side section is larger than that of the sealing section, so that a step is formed between the outer side section and the sealing section and is used for being clamped with the side wall of the furnace cylinder.
7. The electrode-limiting insulating ultra-high-temperature vacuum sintering furnace according to claim 4, wherein: the electrode assembly further comprises a water cooling piece, the water cooling piece comprises a water cooling pipe and a three-way joint, a cooling long hole is formed in the electrode, the cooling long hole is communicated with the outer end of the electrode and extends inwards along the axial direction of the length of the electrode to be close to the inner end, the cooling long hole is not communicated with the inner end, one end of the water cooling pipe penetrates into the end part of the cooling long hole, the diameter of the water cooling pipe is smaller than the inner diameter of the cooling long hole, so that a water supply backflow channel is formed between the water cooling pipe and the cooling long hole at intervals, the three-way joint is arranged at the end of the outer section of the electrode, one joint of the three-way joint is in butt joint with the cooling long hole at the end of the outer section of the electrode, and the other joint of the three-way joint penetrates through the water cooling pipe to penetrate through the joint and enter.
8. The electrode-limiting insulating ultra-high-temperature vacuum sintering furnace according to claim 7, characterized in that: the cooling long hole is eccentrically arranged, a step surface used for being in butt joint with the heater is further arranged on the side wall of the end head on the inner side of the electrode, and the cooling long hole extends to the lower portion of the step surface so as to cool the step surface and the heater connected with the step surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922422544.8U CN211626049U (en) | 2019-12-30 | 2019-12-30 | Electrode limiting insulation type ultra-high temperature vacuum sintering furnace |
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| CN201922422544.8U CN211626049U (en) | 2019-12-30 | 2019-12-30 | Electrode limiting insulation type ultra-high temperature vacuum sintering furnace |
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| CN211626049U true CN211626049U (en) | 2020-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059893A (en) * | 2019-12-30 | 2020-04-24 | 昇力恒(宁夏)真空科技股份公司 | Electrode limiting insulation type ultra-high temperature vacuum sintering furnace |
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2019
- 2019-12-30 CN CN201922422544.8U patent/CN211626049U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111059893A (en) * | 2019-12-30 | 2020-04-24 | 昇力恒(宁夏)真空科技股份公司 | Electrode limiting insulation type ultra-high temperature vacuum sintering furnace |
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