CN219665116U - Novel sealing structure of sintering furnace - Google Patents
Novel sealing structure of sintering furnace Download PDFInfo
- Publication number
- CN219665116U CN219665116U CN202321351776.9U CN202321351776U CN219665116U CN 219665116 U CN219665116 U CN 219665116U CN 202321351776 U CN202321351776 U CN 202321351776U CN 219665116 U CN219665116 U CN 219665116U
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- sealing
- furnace body
- furnace
- sealing structure
- novel
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- 238000007789 sealing Methods 0.000 title claims abstract description 74
- 238000005245 sintering Methods 0.000 title claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000000605 extraction Methods 0.000 claims description 29
- 239000011449 brick Substances 0.000 claims description 20
- 238000009413 insulation Methods 0.000 claims description 9
- 229920000742 Cotton Polymers 0.000 claims description 8
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 5
- 239000010431 corundum Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 15
- 238000005265 energy consumption Methods 0.000 abstract 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 5
- 229910010271 silicon carbide Inorganic materials 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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- Furnace Details (AREA)
Abstract
The utility model relates to a novel sealing structure of a sintering furnace, and belongs to the technical field of sintering furnaces. The novel sealing structure of the sintering furnace comprises a furnace body and a furnace liner arranged in the furnace body, wherein the furnace body is provided with a heating cavity for the arrangement of the furnace liner, and the novel sealing structure further comprises a plurality of supporting pieces, resistance wires and leading-out rods, wherein the supporting pieces are arranged at intervals in the length direction of the furnace body, the resistance wires are sleeved on the supporting pieces and used for heating, the leading-out rods are abutted to the resistances and penetrate through the outer side of the furnace body, and the side wall of the furnace body is provided with sealing bins corresponding to the leading-out rods one by one. The utility model has the effects of reducing heat loss of the heating cavity and reducing energy consumption.
Description
Technical Field
The utility model relates to the technical field of sintering furnaces, in particular to a novel sealing structure of a sintering furnace.
Background
The sintering furnace is a furnace body which is heated in the protection state of hydrogen filling after vacuumizing, so that tungsten, molybdenum and alloy powder in the furnace body are molded and sintered.
Existing sintering furnaces typically employ silicon carbide rods for heating to a sintering temperature of at least 1150 degrees. But the wiring mode of silicon carbide rod needs to stretch out the sintering furnace lateral wall with the whole needs of silicon carbide rod, and the outside of silicon carbide rod is wrapped up in and is equipped with the aluminium area, through aluminium area and external connection heating for when carrying out the sintering, the heat in the furnace body can be along with the tip of silicon carbide rod is dispelled outside, and sealed effect is relatively poor.
Disclosure of Invention
In order to improve the sealing effect of the sintering furnace, the utility model provides a novel sealing structure of the sintering furnace.
The novel sealing structure of the sintering furnace provided by the utility model adopts the following technical scheme:
the utility model provides a novel seal structure of fritting furnace, including the furnace body with set up in the furnace body, the furnace body has the confession the heating chamber that the furnace courage was arranged, still including following a plurality of support pieces that the length direction interval of furnace body set up, cover are located support piece and be used for the resistance wire of heating and butt in the resistance just wear to the extraction rod in the furnace body outside, the furnace body lateral wall be provided with extraction rod one-to-one's seal chamber.
By adopting the technical scheme, the sintering furnace is heated by adopting the resistance wire, the resistance wire is arranged in the heating cavity through the supporting piece, and the resistance wire extends out of the outer side wall of the furnace body through the leading-out rod for connecting wires with the outside.
Optionally, the supporting pieces are distributed on the upper side and the lower side of the furnace pipe along the height direction, and the extraction rod is positioned at one side end part of the resistance wire.
Through adopting above-mentioned technical scheme, the upper and lower both sides of stove courage all are provided with the support piece that the cover has the resistance wire, can heat the upper and lower both sides of stove courage for the stove courage is heated comparatively evenly, improves sintering's processingquality, and the bar of drawing forth only wears out from one side of furnace body, has reduced the heat radiating area that diffuses to the external world in the furnace body.
Optionally, the support piece is the corundum pipe, the heating chamber lateral wall offers supplies the standing groove that support piece tip was arranged, and the tank bottom of standing groove is provided with and is used for supporting support piece put the silk brick.
Through adopting above-mentioned technical scheme, support piece passes through the standing groove level and arranges the both sides wall in the heating chamber, and the heat that the resistance wire produced can transmit to support piece on, through arranging the silk brick of putting at the tank bottom of standing groove for do not have direct contact between the support piece and between the standing groove diapire, put the silk brick and can bear higher temperature and have better creep strength, can play the guard action to the diapire of standing groove.
Optionally, the furnace body lateral wall has and runs through both sides wall and supplies draw forth the hole that the stick wears to establish, draw forth the hole with the standing groove intercommunication, it is used for the butt to draw forth to arrange in the hole the heat-resisting brick of support piece tip.
Through adopting above-mentioned technical scheme, draw forth the stick and communicate to the external world through drawing forth the hole, draw forth hole and standing groove intercommunication, can make seal structure compacter, draw forth the arrangement of downthehole heat-resisting brick, can block support piece along drawing forth the heat that the hole overflowed to the external world, play the thermal-insulated effect.
Optionally, a gap between the extraction rod and the inner wall of the extraction hole is filled with heat-resistant cotton.
Through adopting above-mentioned technical scheme, the setting of heat-resisting cotton can be with the clearance packing between the inner wall of drawing forth the hole and the stick outer wall of drawing forth, has further reduced the heat that the heating chamber overflowed to the external world from drawing forth the hole.
Optionally, the sealing bin comprises a sealing shell and a sealing cover plate for covering the sealing shell, and the extraction rod is positioned in the sealing shell.
Through adopting above-mentioned technical scheme, disclose the structure in sealed storehouse, draw forth the stick and pass the furnace body after, seal the heat preservation through sealed storehouse to the part that draws forth the stick and expose in the furnace body external world, improved the holistic sealed heat preservation performance of fritting furnace.
Optionally, the seal housing has an abutment side for abutting the seal cover plate, the abutment side and the seal cover plate are fixedly connected through a bolt pair.
Through adopting above-mentioned technical scheme, the connected mode of seal housing and seal cover plate is disclosed, and the setting of butt side has improved seal housing and seal cover plate's butt area, has made things convenient for the staff to carry out fixed connection with seal cover plate and seal housing through the bolt pair, realizes the inside sealed effect in sealed storehouse.
Optionally, a sealing ring is arranged between the abutting side edge and the sealing cover plate in a sealing manner.
Through adopting above-mentioned technical scheme, accomplish fixed connection back through the bolt pair at butt side and sealing cover plate, the both sides of sealing ring butt respectively in butt side and sealing cover plate, improved the sealed effect between sealing shell and the sealing cover plate, reduced inside gas leakage to external probability.
Optionally, the outer side wall of the furnace body is also provided with a heat insulation bin for covering the sealing bin.
Through adopting above-mentioned technical scheme for the sealed storehouse in the furnace body outside all is in thermal-insulated storehouse, and thermal-insulated storehouse can play thermal-insulated effect to a plurality of sealed warehouses outside the furnace body, has further reduced sealed storehouse's heat dissipation.
In summary, the present utility model includes at least one of the following beneficial technical effects:
1. according to the novel sealing structure of the sintering furnace, the resistance wire is adopted for heating, one end of the resistance wire is heated with external wiring through the leading-out rod, and the sealing bin is used for sealing wiring on the extending part of the leading-out rod, so that the heat dissipation area of the furnace body to the outside is reduced;
2. according to the utility model, through the arrangement of the heat-resistant bricks and the heat-resistant cotton in the extraction holes, the sealing performance between the extraction rod and the inner wall of the extraction holes can be improved, and the heat of the heating cavity diffused to the outside is reduced;
3. according to the utility model, through the arrangement of the sealing ring, the sealing effect of the abutting part between the sealing cover plate and the sealing shell can be improved, and the probability of leakage of gas in the sealing bin to the outside is reduced.
Drawings
Fig. 1 is a cross-sectional view of the overall structure of an embodiment of the present utility model.
Fig. 2 is a side view of a furnace body in an embodiment of the present utility model.
Fig. 3 is an enlarged partial schematic view at a in fig. 1.
Fig. 4 is a partially enlarged schematic view at B in fig. 2.
Reference numerals illustrate: 1. a furnace body; 11. a heating chamber; 12. a placement groove; 13. a lead-out hole; 2. a furnace pipe; 3. a support; 4. a resistance wire; 5. a lead-out bar; 6. placing silk brick; 61. a limiting surface; 7. a heat-resistant brick; 8. heat-resistant cotton; 9. sealing the bin; 91. a seal housing; 911. abutting the side edges; 92. sealing the cover plate; 93. a bolt pair; 94. a seal ring; 10. a heat insulation bin; 101. and (5) heat-insulating side plates.
Detailed Description
The utility model is described in further detail below with reference to fig. 1-4.
The embodiment of the utility model discloses a novel sealing structure of a sintering furnace.
Referring to fig. 1, a novel sealing structure of a sintering furnace comprises a furnace body 1, a furnace liner 2 which is arranged in the furnace body 1 and is used for sintering materials, a supporting piece 3 which is erected in the furnace body 1, a resistance wire 4 which is sleeved on the supporting piece 3, and a leading-out rod 5 which is connected with the resistance wire 4 and is connected with the outside.
Referring to fig. 1 and 2, the furnace body 1 has a fully closed structure, and the furnace body 1 has a rectangular parallelepiped shape as a whole. A feed inlet is formed in one side wall of the furnace body 1 in the width direction, and a heating cavity 11 for arranging the furnace liner 2 is formed by inwards extending the feed inlet along the length direction of the furnace body 1.
Referring to fig. 1 and 3, the support 3 has a long column shape. In this embodiment, the supporting member 3 is a corundum tube, and the corundum tube has a good temperature resistance, so that the resistance wire 4 is not easy to break after being heated. A plurality of groups of supporting components 3 are arranged in the furnace body 1, and the plurality of groups of supporting components 3 in the horizontal direction are uniformly arranged at intervals along the length direction of the furnace body 1; in the vertical direction, the supports 3 are located on the upper and lower sides of the furnace 2, respectively. Each set of supports 3 has two corundum tubes arranged horizontally. The resistance wire 4 is sleeved on the outer side wall of the support piece 3, and the resistance wire 4 is a U-shaped resistance wire 4.
The inner wall of the heating cavity 11 is provided with a placing groove 12 for placing two ends of the supporting piece 3, and the outer diameter of the placing groove 12 is larger than that of the supporting piece 3. The side wall of the placing groove 12 is provided with a wire placing brick 6 for supporting the supporting piece 3, the top surface of the wire placing brick 6 is provided with a limiting surface 61 which is abutted against the end part of the supporting piece 3, and under the effect of the limiting surfaces 61 of the wire placing bricks 6 on two sides, the fixing effect can be achieved on the axial direction of the supporting piece 3, and the probability of axial movement of the supporting piece 3 is reduced.
The side wall of the furnace body 1 is provided with leading-out holes 13 which penetrate through the side wall and are communicated with the heating cavity 11, and the leading-out holes 13 are in one-to-one correspondence with the placing grooves 12 and are communicated with each other. The extraction rod 5 is arranged in the extraction hole 13, one end of the extraction rod 5 is abutted against the end part of the resistance wire 4, and the other end extends out to the outer side wall of the furnace body 1. The outer diameter of the extraction rod 5 is smaller than that of the resistance wire 4, so that the area of heat dissipation from the inside to the outside of the furnace body 1 can be reduced.
The furnace body 1 is provided with two heat-resistant bricks 7 at the bottom side wall of the height direction of the extraction hole 13, wherein one heat-resistant brick 7 is used for abutting the heat-resistant brick 7 at the end part of the support piece 3, and the other heat-resistant brick 7 is flush with the outer side wall of the furnace body 1. In this embodiment, the heat-resistant brick 7 is a mullite brick, which has the functions of high temperature resistance and low heat conductivity coefficient, and improves the heat preservation effect in the heating cavity 11.
The furnace body 1 is also provided with heat-resistant cotton 8 on the inner wall of the extraction hole 13, and the heat-resistant cotton 8 seals and fills the gap between the extraction rod 5 and the inner wall of the extraction hole 13, so that the sealing and heat-preserving effects are further improved.
Referring to fig. 1 and 4, the outer side wall of the furnace body 1 is provided with a sealing bin 9 corresponding to the plurality of extraction bars 5 in the horizontal direction one by one, and the sealing bin 9 is filled with nitrogen. The material sintered by the nitrogen plays a role in buffering, inhibits the oxidation amount of the metal surface and reduces the content of oxide on the surface. The part of the extraction rod 5 extending out of the outer side wall of the furnace body 1 is positioned in the sealing bin 9, and a power supply communicated with the outside of the extraction rod 5 is transmitted to the resistance wire 4, so that the resistance wire 4 generates heat.
The seal cartridge 9 includes a seal housing 91 in which the extraction rod 5 is disposed, and a seal cover 92 for covering the seal housing 91. One end of the sealing shell 91 is welded and fixed with the outer side wall of the furnace body 1, and the side wall of the other end far away from the furnace body 1 is provided with a bin opening for the sealing cover plate 92 to cover. The seal housing 91 is provided with an abutment side 911 in the circumferential direction of the bin mouth, and the abutment side 911 is integrally formed with the seal housing 91. The outer edge of the seal cover plate 92 abuts against the abutting side 911, and the abutting side 911 and the seal cover plate 92 are fixedly connected by the bolt pair 93. Wherein, still seal ring 94 is arranged in sealing between butt side 911 and the sealing cover 92, and the outer wall and the inner wall of sealing ring 94 are flush with the outer wall and the inner wall of butt lateral wall respectively.
The furnace body 1 is also provided with a heat insulation bin 10 for covering a plurality of sealing bins 9 on the same side wall where the sealing bins 9 are positioned, one end of the heat insulation bin 10 in the horizontal direction is welded and fixed with the outer side wall of the furnace body 1, and the other end is provided with an opening and is provided with a heat insulation side plate 101 in a sealing manner. The arrangement of the heat insulation bin 10 can further improve the sealing heat insulation effect of the sintering furnace and reduce heat dissipation in the heating cavity 11.
The implementation principle of the novel sealing structure of the sintering furnace provided by the embodiment of the utility model is as follows: the leading-out rod 5 is communicated with an external wiring, current is transmitted to the resistance wire 4 in the heating cavity 11, and the resistance wire 4 generates heat; the resistance wire 4 is a single-head wire outlet, the heat-resistant bricks 7 and the heat-resistant cotton 8 in the leading-out holes 13 reduce the heat overflowed to the outside of the heating cavity 11, and the sealing heat preservation effect is further improved through the sealing bin 9 and the heat insulation bin 10.
The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.
Claims (9)
1. The utility model provides a novel seal structure of fritting furnace, includes furnace body (1) and set up in furnace courage (2) in furnace body (1), furnace body (1) have the confession heating chamber (11) that furnace courage (2) were arranged, its characterized in that still includes along a plurality of support pieces (3) that length direction interval of furnace body (1) set up, cover are located support piece (3) and be used for heating resistance wire (4) and butt in resistance wire (4) and wear to establish to draw forth stick (5) in the furnace body (1) outside, furnace body (1) lateral wall be provided with draw forth stick (5) one-to-one seal storehouse (9).
2. The novel sealing structure of the sintering furnace according to claim 1, wherein the supporting pieces (3) are distributed on the upper side and the lower side of the furnace liner (2) along the height direction, and the extraction rod (5) is positioned at one side end part of the resistance wire (4).
3. The novel sealing structure of the sintering furnace according to claim 1, wherein the supporting piece (3) is a corundum tube, a placing groove (12) for arranging the end part of the supporting piece (3) is formed in the side wall of the heating cavity (11), and a yarn placing brick (6) for supporting the supporting piece (3) is arranged on the side wall of the placing groove (12).
4. The novel sealing structure of the sintering furnace according to claim 3, wherein the side wall of the furnace body (1) is provided with an extraction hole (13) penetrating through the two side walls and allowing the extraction rod (5) to penetrate, the extraction hole (13) is communicated with the placing groove (12), and a heat-resistant brick (7) used for abutting against the end part of the supporting piece (3) is arranged in the extraction hole (13).
5. The novel sealing structure of the sintering furnace according to claim 4, wherein gaps between the extraction bars (5) and the inner wall of the extraction holes (13) are filled with heat-resistant cotton (8).
6. The novel sealing structure of the sintering furnace according to claim 1, wherein the sealing bin (9) comprises a sealing shell (91) and a sealing cover plate (92) for covering the sealing shell (91), the extraction rod (5) is positioned in the sealing shell (91), and nitrogen is filled in the sealing bin (9).
7. The novel sealing structure of the sintering furnace according to claim 6, wherein the sealing shell (91) is provided with an abutting side (911) for abutting against the sealing cover plate (92), and the abutting side (911) is fixedly connected with the sealing cover plate (92) through a bolt pair (93).
8. The novel sealing structure of the sintering furnace according to claim 7, wherein a sealing ring (94) is arranged between the abutting side edge (911) and the sealing cover plate (92) in a sealing manner.
9. The novel sealing structure of the sintering furnace according to claim 1, wherein the outer side wall of the furnace body (1) is further provided with a heat insulation bin (10) for covering the sealing bin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321351776.9U CN219665116U (en) | 2023-05-31 | 2023-05-31 | Novel sealing structure of sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321351776.9U CN219665116U (en) | 2023-05-31 | 2023-05-31 | Novel sealing structure of sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219665116U true CN219665116U (en) | 2023-09-12 |
Family
ID=87924115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321351776.9U Active CN219665116U (en) | 2023-05-31 | 2023-05-31 | Novel sealing structure of sintering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219665116U (en) |
-
2023
- 2023-05-31 CN CN202321351776.9U patent/CN219665116U/en active Active
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