CN203657450U - Nitridation sintering section device for producing vanadium-nitrogen alloy by means of one-step method and double pushed slab kiln - Google Patents
Nitridation sintering section device for producing vanadium-nitrogen alloy by means of one-step method and double pushed slab kiln Download PDFInfo
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- CN203657450U CN203657450U CN201320782733.6U CN201320782733U CN203657450U CN 203657450 U CN203657450 U CN 203657450U CN 201320782733 U CN201320782733 U CN 201320782733U CN 203657450 U CN203657450 U CN 203657450U
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- stove
- step method
- heating clamber
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 238000005245 sintering Methods 0.000 title abstract description 12
- SKKMWRVAJNPLFY-UHFFFAOYSA-N azanylidynevanadium Chemical compound [V]#N SKKMWRVAJNPLFY-UHFFFAOYSA-N 0.000 title abstract description 7
- 229910001199 N alloy Inorganic materials 0.000 title abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 26
- 229910045601 alloy Inorganic materials 0.000 claims description 23
- 239000000956 alloy Substances 0.000 claims description 23
- 229910052593 corundum Inorganic materials 0.000 claims description 22
- 239000010431 corundum Substances 0.000 claims description 22
- 239000011449 brick Substances 0.000 claims description 21
- 238000009413 insulation Methods 0.000 claims description 20
- 230000001936 parietal effect Effects 0.000 claims description 15
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 13
- 229910052749 magnesium Inorganic materials 0.000 claims description 13
- 239000011777 magnesium Substances 0.000 claims description 13
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 239000003063 flame retardant Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 8
- 239000011094 fiberboard Substances 0.000 claims description 8
- 229910002804 graphite Inorganic materials 0.000 claims description 7
- 239000010439 graphite Substances 0.000 claims description 7
- 238000010304 firing Methods 0.000 claims description 6
- 229910006295 Si—Mo Inorganic materials 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 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 claims description 4
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 229910052596 spinel Inorganic materials 0.000 claims description 4
- 239000011029 spinel Substances 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 14
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 230000009970 fire resistant effect Effects 0.000 abstract 4
- 238000004321 preservation Methods 0.000 abstract 3
- GALOTNBSUVEISR-UHFFFAOYSA-N molybdenum;silicon Chemical compound [Mo]#[Si] GALOTNBSUVEISR-UHFFFAOYSA-N 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000012299 nitrogen atmosphere Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000003763 carbonization Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- PEFYMBKSDMQNPK-UHFFFAOYSA-N [Mg][Ti][Zr] Chemical compound [Mg][Ti][Zr] PEFYMBKSDMQNPK-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Abstract
The utility model discloses a nitridation sintering section device for producing vanadium-nitrogen alloy by means of a one-step method and a double pushed slab kiln. The device comprises a kiln body of a rectangular structure, wherein the kiln body is composed of an outer heat-preservation layer and an inner heat-preservation layer, an inner cavity of the inner heat-preservation layer is provided with a fire-resistant layer, two side walls of an inner cavity of the fire-resistant layer are kiln wall layers, the top of the inner cavity of the fire-resistant layer is a kiln arched beam, the bottom of the inner cavity of the fire-resistant layer is a kiln bottom layer, a kiln rail layer is arranged above the kiln bottom layer, a kiln chamber is composed of the kiln wall layers, the kiln arched beam and the kiln rail layer, a lower heating chamber is composed of the kiln rail layer and the kiln bottom layer, an upper heating chamber is formed between an upper kiln arched beam cover plate and a lower kiln arched beam cover plate, and W-type silicon-molybdenum rods are arranged in the upper heating chamber and the lower heating chamber; the side wall of the kiln body is provided with heating chamber windows communicated with the lower heating chamber and the upper heating chamber; the section of the kiln chamber is 400-380 mm high and 700-750 mm wide. The device is high in automation degree, quality of sintered products is stable, the yield is two to three times higher than that of a single pushed slab kiln of the same type, energy consumption is low, the environment is not polluted, the probability that people make contact with materials is reduced, and the requirements of materials matched with the vanadium-nitrogen alloy can be met.
Description
Technical field
The utility model relates to the device of producing VN alloy, particularly a kind of nitridation sintered section apparatus that adopts the two pushed bat kilns of one-step method nitrogen atmosphere protection to produce VN alloy.
Background technology
For production process control and the coordinative composition of equipments of vanadium nitride, metallargist both domestic and external has done a large amount of development work, but eventually because production difficulty is large, with high content of technology, makes this technology fail to be used widely aspect automation application.What the producer of most domestic production vanadium nitride was generally used is nitrogen atmosphere protection list pushed bat kiln; and be still referred from the nitrogen atmosphere protection list pushed bat kiln of sintered magnetic material; its furnace kiln structure is simple; entirety kiln cavity configuration is the same with cross section with single pushed bat kiln of production vanadium nitride sintered magnetic material; cause the best sintering time that can not meet VN alloy completely; product quality uniformity is bad, and energy consumption is generally higher, and cost is high.Domestic and international traditional VN alloy is produced vacuum drying oven, coreless induction furnace, vertical heater, the single pushed bat kiln equal segments of mostly adopting of the same trade and is completed reduction, carbonization, nitrogenize, sintering and cooling stage at present.One, process yields is low, energy consumption is high; Its two, stove is low service life, standby redundancy consumption is large; Its three, holding time is longer, causes and consumes stage by stage the energy, energy resource consumption is high and yield poorly.
Adopt the deficiency of the structure of single pushed bat kiln for traditional mode of production VN alloy, therefore, provide a kind of nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method nitrogen atmosphere protection to produce VN alloy to become current this area technical problem urgently to be resolved hurrily.
Utility model content
The purpose of this utility model is to provide the nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method to produce VN alloy, this device solves carbonization section and finishes to enter nitridation sintered section, material is fully sintered from 1250 DEG C to 1500 DEG C is VN alloy, kiln chamber in this stage design minimum makes full use of the energy, reduces sintering power consumption.
The purpose of this utility model realizes by following technical proposals.
A kind of nitridation sintered section apparatus that utilizes two pushed bat kilns production VN alloys, comprise a rectangular configuration body of heater being made up of external thermal insulation and inner thermal insulating layer, described inner thermal insulating layer inner chamber is provided with flame retardant coating, and flame retardant coating inner chamber two side is kiln parietal layer, top is stove arched girder, and bottom is stove bottom; Stove bottom top is provided with stove rail layer, form firing chamber's cavity by described kiln parietal layer, stove arched girder and stove rail layer, stove rail layer and stove bottom form lower heating clamber, stove arched girder is established upper and lower cover plates, between upper and lower cover plates, form upper heating clamber, in upper heating clamber and lower heating clamber, be provided with W type Si-Mo rod; Body of heater peripheral hardware body of heater shell, body of heater shell is located on body of heater bearing; Sidewall of the furnace body is provided with the heating clamber window being connected with lower heating clamber and upper heating clamber; Described firing chamber cavity section height is 400-380mm, and wide is 700-750mm.
Further, described external thermal insulation adopts two-layer fiberboard heat-insulation layer, and two-layer fiberboard insulation layer thickness is 50-100mm; External thermal insulation is located at side and the top layer of inner thermal insulating layer.
Further, described inner thermal insulating layer adopts the two-layer alumina bubble brick layer distributing successively from outside to inside, the poly-light layer structure of two-layer mullite, and each layer thickness is 50-80mm.
Further, described flame retardant coating adopts the poly-light layer of the corundum distributing successively from outside to inside, builds hollow ball layer, magnesium zirconia block layer and corundum brick layer structure, and each layer thickness is 50-150mm.
Further, described kiln parietal layer adopts corundum brick layer, magnesium zirconia block layer or electrode graphite piece layer to form, and wherein, kiln parietal layer thickness is 80-114mm.
Further, described stove arched girder adopts corundum brick, magnesium zirconia block or aluminum-spinel to form.
Further, described stove rail layer adopts corundum brick or electrode graphite to form.
The beneficial effects of the utility model are:
1) due to the utility model according to sintering VN alloy in the nitridation sintered stage, designed specific stove cross section and met sintering VN alloy, this nitridation sintered section can reach optimal spatial and meet the requirement in its nitridation sintered section of space.Reach in best time range and obtain best quality, largest production output, lowest energy consumption, the longest stove service life, really become nitridation sintered section of special stove of sintering VN alloy.
2) because external thermal insulation adopts two-layer fiberboard heat-insulation layer, two-layer fiberboard insulation layer thickness is 50-100mm; , cheap, meet stove instructions for use, reduce stove cost.
3) because inner thermal insulating layer adopts the two-layer alumina bubble brick layer distributing successively from outside to inside, the poly-light layer structure of two-layer mullite, each layer thickness is 50-80mm, and it is high that it has purity; high temperature resistant, pore is even, and thermal conductivity is low; protect the temperature unofficial biography of flame retardant coating, guarantee the feature of stove heat insulation effect.
4) because flame retardant coating adopts the poly-light layer of the corundum distributing successively from outside to inside, builds hollow ball layer, magnesium zirconia block layer and corundum brick layer structure, each layer thickness is 50-150mm, it has good chemical stability, acidity or basic slag, metal and glass metal etc. are all had to stronger resistivity, and the corrosion-resistant property of dense product is good.
5) because adopting corundum brick layer, magnesium zirconia block layer or electrode graphite piece layer, kiln parietal layer forms, wherein, kiln parietal layer thickness is 80-114mm, and it has good chemical stability, and there is corrosion-resistant property, high temperature resistant, good heat conductivity, the feature such as melting purity is high, corrosion resistance is strong and the life-span is long.
6) because adopting corundum brick, magnesium zirconia block or aluminum-spinel, stove arched girder forms, adopt the fire resistive material product taking corundum as principal crystalline phase to there is very high cold crushing strength, there is high loading softening and start temperature, well chemical stability, all has stronger resistivity to acidity or basic slag, metal and glass metal etc.And there is high temperature resistant, good heat conductivity, the feature such as melting purity is high, corrosion resistance is strong, the life-span is long.
7) form because stove rail layer adopts corundum brick or electrode graphite, it has good chemical stability, and there is corrosion-resistant property, high temperature resistant, good heat conductivity, the feature such as melting purity is high, corrosion resistance is strong and the life-span is long.
The utility model is produced in the device of VN alloy at two pushed bat kilns of reduction, carbonization, nitrogenize, sintering, cooling synchronous reaction, design the furnace binding of nitridation sintered section, complete in vanadium-nitrogen alloy sintering product process for continuous one-step, can impel this elementary reaction fully, evenly, completely, good product consistency, density is high, and more conventional economize on electricity 75% that output is high, energy consumption is low (4000 DEG C/TVN), can realize suitability for industrialized production completely.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure: 1, external thermal insulation; 2, inner thermal insulating layer; 3, flame retardant coating; 4, kiln parietal layer; 5, stove arched girder; 6, stove rail layer; 7, heating clamber window; 8, heating clamber window cover plate; 9, body of heater shell; 10, body of heater bearing; 11, kiln chamber section; 12, stove bottom; 13, lower heating clamber; 14, the passage of heating clamber and heating clamber window.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described further.
As shown in Figure 1, the two pushed bat kilns of this utilization are produced the nitridation sintered section apparatus of VN alloy, comprise a rectangular configuration body of heater being formed by external thermal insulation 1 and inner thermal insulating layer 2, inner thermal insulating layer 2 inner chambers are provided with flame retardant coating 3, flame retardant coating 3 inner chamber two sides are kiln parietal layer 4, top is stove arched girder 5, and bottom is stove bottom 12; Stove bottom 12 tops are provided with stove rail layer 6, form firing chamber's cavity 11 by described kiln parietal layer 4, stove arched girder 5 and stove rail layer 6, stove rail layer 6 and stove bottom 12 form lower heating clamber 13, and stove arched girder 5 is established upper and lower cover plates, form upper heating clamber 14 between upper and lower cover plates; In upper heating clamber 14 and lower heating clamber 13, be provided with W type Si-Mo rod, body of heater peripheral hardware body of heater shell 9, body of heater shell 9 is located on body of heater bearing 10; Sidewall of the furnace body is provided with the heating clamber window 7 being connected with lower heating clamber 13 and upper heating clamber 14; Cavity 11 section height in described firing chamber are 400-380mm, and wide is 700-750mm.
Above-mentioned external thermal insulation 1 adopts two-layer fiberboard heat-insulation layer, and two-layer fiberboard insulation layer thickness is 50-100mm; External thermal insulation 1 is located at side and the top layer of inner thermal insulating layer 2.
Above-mentioned inner thermal insulating layer 2 adopts the alumina bubble brick layer of two-layer 0.4 to 1.0 density distributing successively from outside to inside, the poly-light layer structure of two-layer mullite, and each layer thickness is 50-80mm.
Above-mentioned flame retardant coating 3 adopts the poly-light layer of the corundum distributing successively from outside to inside, builds hollow ball layer, magnesium zirconia block layer and corundum brick layer structure, and each layer thickness is 50-150mm, and material is 1.1 to 3.1 density.
It is that 3.0 to 3.1 corundum brick layers, magnesium zirconia block layer or electrode graphite piece layer form that above-mentioned kiln parietal layer 4 adopts density of material, and wherein, kiln parietal layer 4 thickness are 80-114mm.
It is that 3.0 to 3.1 corundum bricks, magnesium zirconia block or aluminum-spinel form that above-mentioned stove arched girder 5 adopts density of material.
It is that 3.0 to 3.1 corundum bricks or electrode graphite form that above-mentioned stove rail layer 6 adopts density of material.
Wherein, it is the processing of Q235 steel plate that heating clamber window 7 adopts material, and heating clamber window 7 is provided with heating clamber window cover plate 8, and it is the processing of Q235 steel plate that heating clamber window cover plate 8 adopts material; Body of heater shell 9 is wide: it is the processing of Q235 steel plate that 1970mm, height: 2020mm adopts material; It is the processing of Q235 steel plate that body of heater bearing 10 adopts material; Lower heating chamber structure: adopting density of material is 3.0 to 3.1 corundum, magnesium zirconia block or magnesium zirconium titanium brick, adopts W type Si-Mo rod and heats up and down.
Nitrogenize section finishes to enter sintering stage, and material is fully sintered from 1250 DEG C to 1500 DEG C is VN alloy, makes full use of the energy in the kiln chamber of this stage design minimum, reduces sintering power consumption.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model; can not assert that detailed description of the invention of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; can also make some simple deduction or replace, all should be considered as belonging to the utility model and determine scope of patent protection by submitted to claims.
Claims (7)
1. a nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method to produce VN alloy, comprise a rectangular configuration body of heater being formed by external thermal insulation (1) and inner thermal insulating layer (2), it is characterized in that: in described inner thermal insulating layer (2), be provided with flame retardant coating (3), flame retardant coating (3) inner chamber two side is kiln parietal layer (4), top is stove arched girder (5), and bottom is stove bottom (12); Stove bottom (12) top is provided with stove rail layer (6), form firing chamber's cavity (11) by described kiln parietal layer (4), stove arched girder (5) and stove rail layer (6), stove rail layer (6) and stove bottom (12) form lower heating clamber (13), stove arched girder (5) is established upper and lower cover plates, between upper and lower cover plates, form upper heating clamber (14), in upper heating clamber (14) and lower heating clamber (13), be provided with W type Si-Mo rod; Body of heater peripheral hardware body of heater shell (9), body of heater shell (9) is located on body of heater bearing (10); Sidewall of the furnace body is provided with the heating clamber window (7) being connected with lower heating clamber (13) and upper heating clamber (14); Described firing chamber cavity (11) section height is 400-380mm, and wide is 700-750mm.
2. the nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method to produce VN alloy according to claim 1, is characterized in that: described external thermal insulation (1) adopts two-layer fiberboard heat-insulation layer, and two-layer fiberboard insulation layer thickness is 50-100mm; External thermal insulation (1) is located at side and the top layer of inner thermal insulating layer (2).
3. the nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method to produce VN alloy according to claim 1, it is characterized in that: described inner thermal insulating layer (2) adopts the two-layer alumina bubble brick layer distributing successively from outside to inside, the poly-light layer structure of two-layer mullite, and each layer thickness is 50-80mm.
4. the nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method to produce VN alloy according to claim 1, it is characterized in that: described flame retardant coating (3) adopts the poly-light layer of the corundum distributing successively from outside to inside, builds hollow ball layer, magnesium zirconia block layer and corundum brick layer structure, and each layer thickness is 50-150mm.
5. the nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method to produce VN alloy according to claim 1, it is characterized in that: described kiln parietal layer (4) adopts corundum brick layer, magnesium zirconia block layer or electrode graphite piece layer to form, wherein, kiln parietal layer (4) thickness is 80-114mm.
6. the nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method to produce VN alloy according to claim 1, is characterized in that: described stove arched girder (5) adopts corundum brick, magnesium zirconia block or aluminum-spinel to form.
7. the nitridation sintered section apparatus that utilizes the two pushed bat kilns of one-step method to produce VN alloy according to claim 1, is characterized in that: described stove rail layer (6) adopts corundum brick or electrode graphite to form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320782733.6U CN203657450U (en) | 2013-11-27 | 2013-11-27 | Nitridation sintering section device for producing vanadium-nitrogen alloy by means of one-step method and double pushed slab kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320782733.6U CN203657450U (en) | 2013-11-27 | 2013-11-27 | Nitridation sintering section device for producing vanadium-nitrogen alloy by means of one-step method and double pushed slab kiln |
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| CN203657450U true CN203657450U (en) | 2014-06-18 |
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| CN201320782733.6U Expired - Lifetime CN203657450U (en) | 2013-11-27 | 2013-11-27 | Nitridation sintering section device for producing vanadium-nitrogen alloy by means of one-step method and double pushed slab kiln |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990407A (en) * | 2015-07-28 | 2015-10-21 | 广东摩德娜科技股份有限公司 | Novel energy-saving kiln insulation structure |
| CN107311697A (en) * | 2017-07-31 | 2017-11-03 | 江西天启新材料集团有限公司 | One kind production VN alloy saggar protective layer and preparation method thereof |
| CN114543532A (en) * | 2020-11-26 | 2022-05-27 | 中国电子科技集团公司第四十八研究所 | High-temperature sintering furnace suitable for aluminum nitride |
-
2013
- 2013-11-27 CN CN201320782733.6U patent/CN203657450U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104990407A (en) * | 2015-07-28 | 2015-10-21 | 广东摩德娜科技股份有限公司 | Novel energy-saving kiln insulation structure |
| CN104990407B (en) * | 2015-07-28 | 2017-01-25 | 广东摩德娜科技股份有限公司 | Novel energy-saving kiln insulation structure |
| CN107311697A (en) * | 2017-07-31 | 2017-11-03 | 江西天启新材料集团有限公司 | One kind production VN alloy saggar protective layer and preparation method thereof |
| CN107311697B (en) * | 2017-07-31 | 2020-11-06 | 江西天启新材料集团有限公司 | Sagger protection layer for producing vanadium-nitrogen alloy and preparation method thereof |
| CN114543532A (en) * | 2020-11-26 | 2022-05-27 | 中国电子科技集团公司第四十八研究所 | High-temperature sintering furnace suitable for aluminum nitride |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140618 |
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| CX01 | Expiry of patent term |