CN203429219U - Annealing furnace tail part for aluminum-zinc plated steel plate - Google Patents
Annealing furnace tail part for aluminum-zinc plated steel plate Download PDFInfo
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- CN203429219U CN203429219U CN201320560364.6U CN201320560364U CN203429219U CN 203429219 U CN203429219 U CN 203429219U CN 201320560364 U CN201320560364 U CN 201320560364U CN 203429219 U CN203429219 U CN 203429219U
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- annealing furnace
- furnace shell
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- radiator tube
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 50
- 239000010959 steel Substances 0.000 title claims abstract description 50
- 238000000137 annealing Methods 0.000 title claims abstract description 39
- FJMNNXLGOUYVHO-UHFFFAOYSA-N aluminum zinc Chemical compound [Al].[Zn] FJMNNXLGOUYVHO-UHFFFAOYSA-N 0.000 title abstract description 5
- 229910018137 Al-Zn Inorganic materials 0.000 claims description 19
- 229910018573 Al—Zn Inorganic materials 0.000 claims description 19
- 239000000835 fiber Substances 0.000 claims description 18
- 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 9
- 229920000742 Cotton Polymers 0.000 claims description 9
- 239000003063 flame retardant Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 239000012774 insulation material Substances 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 16
- 239000011810 insulating material Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005336 cracking Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 230000003245 working effect Effects 0.000 description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 229910001297 Zn alloy Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- HXFVOUUOTHJFPX-UHFFFAOYSA-N alumane;zinc Chemical compound [AlH3].[Zn] HXFVOUUOTHJFPX-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- -1 aluminium-iron-silicon-zinc Chemical compound 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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Abstract
The utility model relates to an annealing furnace tail part (100) for an aluminum-zinc plated steel plate. The annealing furnace tail part comprises a furnace body which is surrounded by a furnace shell, the furnace body comprises a thermal tension roller section (110) and a descending section (120) which are connected with each other at the annealing furnace tail part, a baffle (310) is fixedly arranged in the inner side of the furnace shell, a clearance is formed between the baffle and the furnace shell to form a thermal-insulating layer, a thermal-insulating material is filled in the thermal-insulating layer, and in the internal space of the thermal tension roller section and a descending section at the annealing furnace tail part, radiating pipes are evenly arranged in the inner side of the baffle. According to the annealing furnace tail part, the radiating pipes are evenly arranged in the internal space of the furnace body, the thermal-insulating layer is arranged in the inner side of the furnace shell to isolate a heating device from the furnace shell and prevent the local part of the furnace shell from being cracked due to uneven heating, the annealing furnace tail part is simple and compact in structure, all regions in the furnace can be heated evenly, the quality of products can be enhanced, and the service life of the furnace body can be prolonged.
Description
Technical field
The utility model relates to a kind of annealing furnace afterbody for Al-Zn coated steel, belongs to machinery manufacturing technology field.
Background technology
Al-Zn coated steel is a kind of alloy layer steel plate, by metallic aluminium, metallic zinc and silicon and other interpolation auxiliary agents, is at high temperature solidified and forms, and its total, by aluminium-iron-silicon-zinc, forms a kind of alloy layer steel plate of fine and close quaternary xln.Be widely used in the numerous areas such as building materials, household electrical appliances, automobile, machinery, boats and ships, especially can be applied to buildings, such as: roof, wall, garage, soundproof wall, pipeline and modular house etc.The course of processing more complicated of Al-Zn coated steel, has generally included from cold-rolled steel coils to raw material cleaning, the operation such as annealing, the hot dip process of aluminium zinc, then by techniques such as cooling, sizing, polishing, aligning, passivation, can complete successively.If make aluminum-zinc alloy colored steel, also need through operations such as japanning and detections.But no matter be Al-Zn coated steel or colored steel, in continuous aluminum-zinc alloy production line, the operation of annealing is all very important, by annealing, reduced the intensity and the toughness that has improved raw steel of raw steel, be convenient to the processing treatment in subsequent technique.Therefore, annealing furnace afterbody thermotension roller section and downcomer are last procedure equipment used before hot dip process, belong to the nucleus of producing with steel, can affect to a great extent the quality of coating.
Fig. 1 is the furnace shell structure schematic diagram of existing annealing furnace afterbody thermotension roller section.As shown in Figure 1, in existing aluminum-zinc alloy production line, in annealing furnace afterbody thermotension roller section, adopt the mode at furnace shell 800 arranged outside electrothermal tubes 810 to heat body of heater, in order to keep Heating temperature, the outside of electrothermal tube 810 is also provided with cellucotton layer 820, and most external is one deck baffle plate 830 fixedly.In like manner, the furnace shell of existing annealing furnace afterbody downcomer also adopts identical structure.The setting position of existing annealing furnace afterbody electrothermal tube 810 is near furnace shell 800, and because body of heater shape is special, dead angle is many, and furnace shell outside connection components and parts are many simultaneously, causes some places that outside electrothermal tube can not be installed.In addition, inboard wall of furnace body zinc powder is piled up inhomogeneous, makes furnace shell local temperature uneven, the easily cracking that expands with heat and contract with cold, and the heat being simultaneously delivered in stove is also inhomogeneous, and furnace atmosphere temperature distributing disproportionation is even, further increases the weight of zinc fume in stove and separates out at low temperature place.In addition, the furnace shell 800 of existing annealing furnace afterbody is for carbon steel material and be close to electrothermal tube 810， localized hyperthermia and can reach 600 ℃-800 ℃.Because carbon steel material is under the environment of 600 ℃ to 800 ℃, itself just easily produces cracking, therefore, existing annealing furnace afterbody shell is easily impaired, and work-ing life is short, and Heating temperature does not reach processing requirement, be easy to destroy the oxygen-free environment in stove, thereby occur safety problem and quality problems.
Utility model content
Technical problem to be solved in the utility model is for the deficiencies in the prior art, a kind of annealing furnace afterbody Proper Design for Al-Zn coated steel is provided, radiator tube is evenly arranged in body of heater internal space, and be provided with thermofin in furnace shell inner side, and heating unit and furnace shell are separated to setting, effectively prevented the cracking that furnace shell local heating inequality causes, simple in structure, compact, guarantee regional homogeneous heating in stove, improve the quality of products, extend body of heater work-ing life.
Technical problem to be solved of the present utility model is achieved by the following technical solution:
A kind of annealing furnace afterbody for Al-Zn coated steel, comprise by furnace shell and enclose the body of heater forming, body of heater is comprised of interconnective thermotension roller section and downcomer, the inner side of described furnace shell is fixed with baffle plate, between baffle plate and furnace shell, be provided with gap and form thermofin, filling with insulation material in described thermofin, is evenly provided with radiator tube in described thermotension roller section and the two-part furnace shell of downcomer internal space, and the setting position of described radiator tube is positioned at the inner side of baffle plate.
For effectively heat insulation, reduce the impact of radiator tube on furnace shell, as required, the thickness of described thermofin is 150 millimeters.Specifically, described lagging material comprises two-layer, is respectively near the flame-retardant fibre board of furnace shell one side and the refractory fiber cotton of close baffle plate one side, and the thickness that arranges of described flame-retardant fibre board is 125 millimeters, and the thickness that arranges of described refractory fiber cotton is 25 millimeters.
Described furnace shell soft steel steel plate, thickness is 6 millimeters; Described baffle plate is stainless-steel sheet, and thickness is 2 millimeters; Described baffle plate is fixed on furnace shell by fastening assembly.
Described thermotension roller section is irregularly shaped, and its monnolithic case size is: total width: 2765 millimeters, and total height: 2770 millimeters; The shape of cross section of described downcomer is rectangle, and the monnolithic case size of cross section is: total width: 2074 millimeters, and total height: 1108 millimeters, the total length of downcomer: 7059 millimeters.
In described thermotension roller section stove, be provided with thermotension roller, radiator tube is around the surrounding that is arranged on described thermotension roller, and the top of described thermotension roller is provided with 6 radiator tubes, belows and is provided with 3 radiator tubes.Radiator tube in described downcomer stove evenly arranges, and magnitude setting is 6.
In order to prevent furnace shell cracking, the setting position of radiator tube should and furnace shell between maintain a certain distance, therefore, in the utility model, the vertical range between inside the center that arranges of radiator tube and baffle plate is 368 millimeters-829 millimeters.
Meanwhile, in order to guarantee steel band thermally equivalent in stove, the center that arranges of described radiator tube is 210 millimeters-293 millimeters to the vertical range of steel strip surface.
In sum, the utility model provides a kind of annealing furnace afterbody for Al-Zn coated steel, and radiator tube is evenly arranged in body of heater internal space, and thermofin is moved on to furnace shell inner side from existing furnace shell outside, radiator tube and furnace shell are separated to setting, meanwhile, the material of furnace shell adopts mild steel plate, has effectively prevented the cracking that furnace shell local heating inequality causes, simple in structure, compact, guarantee regional homogeneous heating in stove, improve the quality of products, extend body of heater work-ing life.
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the furnace shell structure schematic diagram of existing annealing furnace afterbody thermotension roller section;
Fig. 2 the utility model annealing furnace afterbody one-piece construction schematic diagram;
Fig. 3 is the utility model furnace shell local structure schematic diagram.
Embodiment
Fig. 2 the utility model annealing furnace afterbody one-piece construction schematic diagram.As shown in Figure 2, the utility model provides a kind of annealing furnace afterbody 100 for Al-Zn coated steel, comprises by furnace shell 300 and encloses the body of heater forming, and body of heater is comprised of interconnective thermotension roller section 110 and downcomer 120.In described thermotension roller section 110 and the two-part furnace shell of downcomer 120 internal space, be evenly provided with radiator tube, comprise the first radiator tube 201 to the 15 radiator tubes 215.
Fig. 3 is the utility model furnace shell local structure schematic diagram.As shown in Figure 3, the inner side of described furnace shell 300 is fixed with baffle plate 310.In the embodiment shown in Fig. 2 and Fig. 3, what furnace shell 300 adopted is soft steel steel plate, and thickness is 6 millimeters, and what baffle plate 310 adopted is stainless-steel sheet, and thickness is 2 millimeters, and described baffle plate 310 is fixed on furnace shell 300 by comprising the fastening assembly of bolt and nut.Between baffle plate 310 and furnace shell 300, be provided with gap and form thermofin, filling with insulation material in described thermofin.Shown in Fig. 2, the setting position of described radiator tube is positioned at the inner side of baffle plate 310.As shown in Figure 3, for effectively heat insulation, reduce the impact of radiator tube on furnace shell, as required, the thickness of described thermofin is 150 millimeters.Specifically, described lagging material comprises two-layer, is respectively near the flame-retardant fibre board A1 of furnace shell 300 1 sides and the refractory fiber cotton A2 of close baffle plate 310 1 sides.Wherein, the thickness that arranges of flame-retardant fibre board A1 is 125 millimeters, and the thickness that arranges of refractory fiber cotton A2 is 25 millimeters.
For flame-retardant fibre board A1 and refractory fiber cotton A2, those skilled in the art can need to select according to using from existing refractory products, in embodiment provided by the utility model, the parameter request of flame-retardant fibre board A1 and refractory fiber cotton A2 refers to shown in following table content.
Table one: the technical parameter of flame-retardant fibre board A1
Table two: the technical parameter of refractory fiber cotton A2
Shown in Fig. 2, the described thermotension roller section 110 in the present embodiment is irregularly shaped, and its monnolithic case size is: total width: 2765 millimeters, and total height: 2770 millimeters; The shape of cross section of described downcomer 120 is rectangle, and the monnolithic case size of cross section is: total width: 2074 millimeters, and total height: 1108 millimeters, the total length of downcomer: 7059 millimeters.In described thermotension roller section 110 stoves, be provided with thermotension roller 130, a plurality of radiator tubes are around the surrounding that is arranged on described thermotension roller 130, specifically comprise and be arranged on 1 the 6th radiator tube 206 of thermotension roller 130 sides tops and be arranged on 5 radiator tubes directly over thermotension roller, comprise that the first radiator tube 201 is to the 5th radiator tube 205, be arranged in addition thermotension roller 130 belows and be provided with 3 radiator tubes, comprise that the 7th radiator tube 207 is to the 9th radiator tube 209.Radiator tube in downcomer 120 stoves evenly arranges, and magnitude setting is 6, comprises the tenth radiator tube 210 to the 15 radiator tubes 215.
In order to prevent furnace shell cracking, the setting position of radiator tube should and furnace shell between maintain a certain distance, therefore, in the utility model, the vertical range between inside the center that arranges of radiator tube and baffle plate is 368 millimeters-829 millimeters.Meanwhile, in order to guarantee steel band thermally equivalent in stove, the center that arranges of described radiator tube is 210 millimeters-293 millimeters to the vertical range of steel strip surface.Specifically, the center that is arranged on each radiator tube in body of heater is not identical separately to the spacing between furnace shell inwall yet.In thermotension roller section 110 stoves, the spacing of the first radiator tube 201 to the 5th radiator tube 205 to top furnace shell inwall is 369 millimeters; The 6th radiator tube 206 is 829 millimeters to the spacing of top furnace shell inwall; The 5th radiator tube 205 is 389 millimeters to the spacing of anterior furnace shell inwall; The 9th radiator tube 209 is 489 millimeters to the spacing of anterior furnace shell inwall, and as shown in Figure 2, right side is anterior.In downcomer 120, the tenth radiator tube 210 to the 15 radiator tubes 215 are respectively 368 millimeters to the spacing of top furnace shell inwall, and as shown in Figure 2, right side is top.Meanwhile, the center that arranges of radiator tube, to the distance between steel band, is also the key parameter of realizing steel band thermally equivalent in stove.As shown in Figure 2, the first radiator tube 201 to the 5th radiator tube 205 is 250 millimeters to the vertical range between the steel band 140 at level attitude; The 6th radiator tube 206 is 210 millimeters to the distance between the steel band 140 at level attitude; The 7th radiator tube 207 is 293 millimeters to the distance between the steel band 140 in obliquity; The tenth radiator tube 210 to the 15 radiator tubes 215 are 260 millimeters to the distance between the steel band 140 in obliquity.What the distance between above-mentioned radiator tube referred to is all that radiator tube arranges the distance between center.It should be noted that; because radiator tube is existing conventional heating unit; its concrete internal structure does not repeat them here; in addition; the protective sleeve two ends that are arranged on radiator tube outside can be mutually fixedly set by ring flange and fastening assembly and body of heater inside; in junction, carry out corresponding technical finesse, concrete syndeton is common technology means simultaneously, and those skilled in the art can select according to actual needs.
Shown in Fig. 2, Fig. 3, working process of the present utility model is such: in annealing furnace afterbody body of heater, steel band 140 enters in described thermotension roller section 110 stoves of annealing furnace by thermotension roller 130, and the first radiator tube 201 to the many radiator tubes such as the 9th radiator tube 209 that are separately positioned on the upper and lower both direction of thermotension roller 130 carry out homogeneous heating to the steel band 140 through wherein.Steel band 140 enters and enters next technical process from downcomer 120 outputs from thermotension wheel section 110.When steel band 140 moves in downcomer 120 stoves, be subject to equally the tenth radiator tube 210 homogeneous heatings to the 15 radiator tube 215 that evenly arrange.In above-mentioned annealing process, the intensity of steel band 140 and toughness have all obtained improving to some extent.The thermofin arranging between radiator tube and furnace shell, its inner lagging material of filling, the heat that radiator tube as heating unit is come out, fully by lagging material, absorbed, temperature in body of heater is from inside to outside successively decreased gradually, this structure makes casing temperature low, is difficult for producing distortion and cracking.
In sum, the annealing furnace afterbody for Al-Zn coated steel that the utility model provides, radiator tube is evenly arranged in body of heater internal space, and be provided with thermofin in furnace shell inner side, and heating unit and furnace shell are separated to setting, effectively prevented the cracking that furnace shell local heating inequality causes, simple in structure, compact, guarantee regional homogeneous heating in stove, improve the quality of products, extend body of heater work-ing life.
Claims (9)
1. the annealing furnace afterbody for Al-Zn coated steel, comprise by furnace shell (300) and enclose the body of heater forming, body of heater is comprised of interconnective thermotension roller section (110) and downcomer (120), it is characterized in that: the inner side of described furnace shell is fixed with baffle plate (310), between baffle plate and furnace shell, be provided with gap and form thermofin, filling with insulation material in described thermofin, in described thermotension roller section and the two-part furnace shell of downcomer internal space, be evenly provided with radiator tube, the setting position of described radiator tube is positioned at the inner side of baffle plate.
2. the annealing furnace afterbody for Al-Zn coated steel as claimed in claim 1, is characterized in that: the thickness of described thermofin is 150 millimeters.
3. the annealing furnace afterbody for Al-Zn coated steel as claimed in claim 1, it is characterized in that: described lagging material comprises two-layer, be respectively near the flame-retardant fibre board (A1) of furnace shell one side and the refractory fiber cotton (A2) of close baffle plate one side, the thickness that arranges of described flame-retardant fibre board is 125 millimeters, and the thickness that arranges of described refractory fiber cotton is 25 millimeters.
4. the annealing furnace afterbody for Al-Zn coated steel as claimed in claim 3, is characterized in that: described furnace shell (300) is soft steel steel plate, and thickness is 6 millimeters; Described baffle plate (310) is stainless-steel sheet, and thickness is 2 millimeters; Described baffle plate is fixed on furnace shell by fastening assembly.
5. the annealing furnace afterbody for Al-Zn coated steel as claimed in claim 1, is characterized in that: described thermotension roller section (110) is for irregularly shaped, and its monnolithic case size is: total width: 2765 millimeters, and total height: 2770 millimeters; The shape of cross section of described downcomer (120) is rectangle, and the monnolithic case size of cross section is: total width: 2074 millimeters, and total height: 1108 millimeters, the total length of downcomer: 7059 millimeters.
6. the annealing furnace afterbody for Al-Zn coated steel as claimed in claim 5, it is characterized in that: in described thermotension roller section (110) stove, be provided with thermotension roller (130), radiator tube is around the surrounding that is arranged on described thermotension roller, and the top of described thermotension roller is provided with 6 radiator tubes, belows and is provided with 3 radiator tubes.
7. the annealing furnace afterbody for Al-Zn coated steel as claimed in claim 5, is characterized in that: the radiator tube in described downcomer (120) stove evenly arranges, and magnitude setting is 6.
8. the annealing furnace afterbody for Al-Zn coated steel as described in claim 6 or 7, is characterized in that: the vertical range between the center that arranges of described radiator tube and baffle plate inner side is 368 millimeters-829 millimeters.
9. the annealing furnace afterbody for Al-Zn coated steel as claimed in claim 8, is characterized in that: the center that arranges of described radiator tube is 210 millimeters-293 millimeters to the vertical range of steel strip surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560364.6U CN203429219U (en) | 2013-09-10 | 2013-09-10 | Annealing furnace tail part for aluminum-zinc plated steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320560364.6U CN203429219U (en) | 2013-09-10 | 2013-09-10 | Annealing furnace tail part for aluminum-zinc plated steel plate |
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| Publication Number | Publication Date |
|---|---|
| CN203429219U true CN203429219U (en) | 2014-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320560364.6U Expired - Fee Related CN203429219U (en) | 2013-09-10 | 2013-09-10 | Annealing furnace tail part for aluminum-zinc plated steel plate |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163566A (en) * | 2014-07-19 | 2014-11-26 | 蚌埠凯盛工程技术有限公司 | Annealing kiln thermal insulation area terminal baffle plate anti-deformation structure and installation method thereof |
| CN109055695A (en) * | 2018-09-12 | 2018-12-21 | 中国二十冶集团有限公司 | Dedicated assembly platform and assemble method for annealing furnace furnace shell |
-
2013
- 2013-09-10 CN CN201320560364.6U patent/CN203429219U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104163566A (en) * | 2014-07-19 | 2014-11-26 | 蚌埠凯盛工程技术有限公司 | Annealing kiln thermal insulation area terminal baffle plate anti-deformation structure and installation method thereof |
| CN109055695A (en) * | 2018-09-12 | 2018-12-21 | 中国二十冶集团有限公司 | Dedicated assembly platform and assemble method for annealing furnace furnace shell |
| CN109055695B (en) * | 2018-09-12 | 2024-06-04 | 中国二十冶集团有限公司 | Special assembling platform and assembling method for annealing furnace shell |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140212 |