CN104959282A - Anti-oxidation coating apparatus and coating drying method - Google Patents
Anti-oxidation coating apparatus and coating drying method Download PDFInfo
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- CN104959282A CN104959282A CN201510446274.8A CN201510446274A CN104959282A CN 104959282 A CN104959282 A CN 104959282A CN 201510446274 A CN201510446274 A CN 201510446274A CN 104959282 A CN104959282 A CN 104959282A
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- Prior art keywords
- baking space
- casing
- coating apparatus
- oxygen
- inert gas
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- 238000000576 coating method Methods 0.000 title claims abstract description 47
- 239000011248 coating agent Substances 0.000 title claims abstract description 46
- 238000001035 drying Methods 0.000 title claims abstract description 40
- 230000003064 anti-oxidating effect Effects 0.000 title claims abstract description 24
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000001301 oxygen Substances 0.000 claims abstract description 51
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 51
- 239000000463 material Substances 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 39
- 238000007789 sealing Methods 0.000 claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 6
- 239000011261 inert gas Substances 0.000 claims description 36
- 239000001257 hydrogen Substances 0.000 claims description 17
- 229910052739 hydrogen Inorganic materials 0.000 claims description 17
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 239000011889 copper foil Substances 0.000 claims description 7
- 150000002431 hydrogen Chemical class 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 5
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 235000021168 barbecue Nutrition 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 238000011084 recovery Methods 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 abstract description 2
- 238000007254 oxidation reaction Methods 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000013213 extrapolation Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
Landscapes
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to an anti-oxidation coating apparatus. The anti-oxidation coating apparatus comprises an unreeling device for unreeling a material to be coated, a coating head, a drying device and a reeling device for reeling the coated and dried material; the drying device comprises a box body penetrating in two ends; movable sealing plates are arranged at the two ends of the box body; escape holes allowing the material to pass through are formed in the sealing plates; the sealing plates and the box body are combined to form a roasting space; a heating device, an insert gas input hole communicated with an external insert gas supply device and a combustion mechanism are arranged in the roasting space; the sealing plates move to the two sides of the box body under the action of the insert gas; meanwhile, the combustion mechanism is used for igniting to consume oxygen in the roasting space. The anti-oxidation coating apparatus is capable of effectively preventing the material from being oxidized in the drying process. Meanwhile, the invention also provides a coating drying method which is capable of effectively reducing the probability of oxidation of the material in the coating process.
Description
Technical field
The present invention relates to a kind of coating apparatus, particularly a kind of anti-oxidation coating apparatus and coating furnace drying method.
Background technology
At present, coating machine is very common equipment in the industry, and purposes is varied.According to physical property and the product demand of oar material, coating oar material is had easily to be oxidized in an environment of high temperature, now just need to carry out anti-oxidation process, general processing method is to inert gas injecting in baking space, to discharge the oxygen in baking space, but this method can only water down the oxygen in baking space, and coating oar material is still easily oxidized, what also have does not carry out anti-oxidation process at all, and such oar material is just oxidized in high temperature environments.As baking oven and the coating machine of the heating of patent infrared lamp, its patent No. is 201310353935.3, and its publication date is on November 20th, 2013, and scheme disclosed in it is the baking oven of a kind of infrared lamp heating, and it comprises oven main body, air return system and heating system; Described heating system comprises many infrared lamps, and many infrared lamps are arranged at the inwall of oven main body; Described air return system comprises air channel, and the two ends in air channel are communicated with oven main body respectively, and when infrared heating pipe heats, air return system drives the air in oven main body to circulate along air channel; Described oven main body comprises more piece, and the length often saving oven main body is three meters, and the top inner wall often saving oven main body is evenly provided with eight or nine infrared lamps; Described infrared lamp is parallel with the plane at the matrix place in oven main body; Described many infrared lamps are in the same plane and distance to matrix place plane to be dried is 90-110mm.
Above-mentioned patent does not carry out anti-oxidation process when toasting, and is not suitable for oxidizable coating oar material.
Summary of the invention
The present invention provides a kind of anti-oxidation coating apparatus for solving in prior art the defect that exists, by arranging a transformable baking space, the oxygen in described baking space is consumed by the mode of inert gas injecting and burning, thus preventing oxidizable coating oar material oxidized when drying, scheme is as follows.
A kind of anti-oxidation coating apparatus, comprise the wrap-up that unwinding device, coater head, drying unit and the recovery of placing material to be coated have been coated with the material of having dried, described drying unit comprises the casing that control circuit and two communicate, casing two is provided with moveable sealing plate, sealing plate is provided with the resigning hole allowing material pass through, sealing plate and casing form baking space, are provided with heating arrangements, the inert gas input hole be communicated with extraneous inertia feeder and combustion mechanism in described baking space; Described sealing plate moves to casing both sides under the effect of inert gas, and combustion mechanism igniting simultaneously consumes the oxygen in described baking space.
Further, described casing is provided with sliding rail, and sealing plate is provided with the slide block matched with sliding rail.
Further, described casing is provided with the fixed block that restriction sealing plate departs from casing.
Further, described material to be coated is Copper Foil volume, and Copper Foil volume is positioned on unwinding device, coats anaerobic oven dry in drying unit after oar material through coater head.
Further, described heating arrangements comprises temperature sensor and heating component, and heating component is positioned on described casing, and temperature sensor is connected with described control circuit and prevents temperature in described baking space too high.
Further, described combustion mechanism comprises ignition and hydrogen, and combustion of hydrogen consumes the oxygen in described baking space and forms water vapour.
Further, be provided with the oxygen sensor of oxygen content in the described baking space of monitoring in described casing, oxygen sensor is connected with control circuit.
Further, described inert gas is nitrogen or argon gas.
Further, drying unit is one or more.
The present invention also provides a kind of coating furnace drying method, improves further and dries oxidation-protective effect.
A kind of coating furnace drying method, comprises the following steps:
(1) toward inert gas injecting in described baking space, and described sealing plate is moved to casing both sides, increase the volume of baking space;
(2) keep the supply of inert gas to prevent oxygen from entering, light mechanism simultaneously and light a fire in baking space, consume the oxygen in described barbecue space;
(3) keep the supply of inert gas to prevent oxygen from entering, heating arrangements heats to baking space;
(4) keep the supply of inert gas to prevent oxygen from entering, when the temperature in described baking space reaches preset temperature, applying material to be dried enters in baking space and toasts;
(5) wrap-up has drawn the material of having dried in.
Owing to adopting technical scheme of the present invention, its beneficial effect is as follows.
1. the present invention is by arranging moveable sealing plate, and baking space can be changed from small to big, thus the oxygen in the baking space after change greatly can be made very thin, thus reduces coating sizing-agent degree oxidized in drying course.
2. further, a combustion mechanism is set in described baking space, consumes oxygen in baking space by lighting combustible, thus reduce the oxygen in baking space further, make coating sizing-agent not oxidized in drying course.
3., by described baking space combustion hydrogen, hydrogen and oxygen reaction form water and by high temperature evaporation, thus can not pollute applying material, cleaning of maintenance product.
4., by set temperature sensor on drying unit, effectively control the temperature in baking space, prevent oar material Yin Wendu too high and produce danger that is rotten or burning.
Accompanying drawing explanation
Fig. 1 is a kind of anti-oxidation coating apparatus schematic diagram.
Fig. 2 is drying unit stereogram.
Fig. 3 is drying unit explosive view.
Fig. 4 is casing stereogram.
Fig. 5 is heating arrangements stereogram.
Fig. 6 is a kind of coating furnace drying method block diagram.
Accompanying drawing identifier declaration
1. unwinding device; 2. coater head; 3 drying units; 4. rear drive equipment; 5. wrap-up; 31. casings; 311. inert gas input holes; 312. heating rod holes; 313. sliding rail; 314. combustion mechanism; 32. sealing plates; 321. resigning hole; 322. slide block; 33.; Heating arrangements 331. heating rod.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not entire infrastructure.
As shown in Figures 1 to 5, a kind of anti-oxidation coating apparatus, comprises unwinding device 1, coater head 2, drying unit 3, the rear drive equipment 4 of placing material to be coated and reclaims and be coated with the wrap-up 5 of the material of having dried.Material to be coated in the present invention is Copper Foil volume, also can be other material, as aluminium foil, moldable etc., the most important thing is that oar material can produce oxidation when toasting.Copper Foil volume is placed on unwinding device 1, then through coating office, then through drying unit 3, then pulls through rear drive equipment 4, finally draws on wrap-up 5.Described anti-oxidation coating apparatus can arrange one or more drying unit 3, as required can unrestricted choice; When there being multiple drying unit 3, the temperature of each drying unit can be unified control, also can be independent control.In one preferred version, the temperature of drying unit 3 independently controls, and temperature is each different, and the drying unit temperature near coater head is higher, lower more rearward.
As shown in Figure 4, described drying unit 3 comprises the casing 31 that control circuit and two communicate, and casing 31 is provided with sliding rail 313, the present invention one preferred version be in the middle part of casing 31 centered by, tetragonal symmetry is provided with 8 sliding rails 313, left 4, right four.Having in the middle part of casing 31 does not a bit ofly have track, an inert gas input hole 311 allowing inert gas enter spatially is provided with what there is no a track, inert gas input hole 311 and extraneous confession should the device of inert gas be connected, and inert gas input hole 311 can be one also can be multiple.The supply of inert gas feeding mechanism has the body of certain pressure intensity, and its pressure is greater than a standard atmospheric pressure.One preferred version is that the pressure of inert gas is greater than 1.5 standard atmospheric pressures.Be conducive to the discharge of air like this and promote sealing plate 32 outwards movement.The oxygen sensor of oxygen content in the described baking space of monitoring is provided with in described casing, oxygen sensor is connected with control circuit, oxygen sensor or to be one or multiple, a preferred version is respectively establish an oxygen sensor for the oxygen content in monitoring box body at the two ends of described casing 21.
As shown in Figures 2 and 3, casing 31 two is provided with moveable sealing plate 32, and sealing plate 32 is provided with the resigning hole 321 allowing material pass through, and sealing plate 32 and casing 31 form baking space, are provided with heating arrangements 33 and combustion mechanism 314 in described baking space.Sealing plate 32 is provided with the slide block 322 coordinating with sliding rail 313 and slide, sealing plate 32 moves to casing 31 both sides under the effect of inert gas, such baking space will become large, air in original baking space will be discharged, the air be not discharged also can become very thin, and oxygen content is little.Casing 31 is provided with the limited block that restriction sealing plate 32 departs from casing 31, and prevent sealing plate 32 under the effect of inert gas, departing from casing 31, when sealing plate 32 contacts limited block, baking space is now maximum.The present invention, by arranging moveable sealing plate 32, makes baking space to change from small to big, thus the oxygen in the baking space after change greatly can be made very thin, thus reduces coating sizing-agent degree oxidized in drying course.When baking space is maximum, combustion mechanism 314 igniting consumes the oxygen in described baking space.Combustion mechanism 314 comprises ignition and hydrogen, and combustion of hydrogen consumes the oxygen in described baking space, and hydrogen and oxygen reaction generate water, and water forms water vapour and discharges barbecue space in the baking space of high temperature.The present invention arranges a combustion mechanism 314 in described baking space, consuming oxygen in baking space, thus reducing the oxygen in baking space further, making coating sizing-agent not oxidized in drying course by lighting combustible.Additionally by described baking space combustion hydrogen, hydrogen and oxygen reaction form water and by high temperature evaporation, thus can not pollute applying material, keep the clean of product.
As shown in Figure 3 and Figure 5, casing 31 is provided with heating arrangements 33, and described heating arrangements 33 comprises lower box 31, and lower box 31 is provided with heating component, and heating component can be heating rod, resistive heater or infrared heating etc.The present invention selects heating rod 331, and heating rod 331 is positioned at the middle part of described lower box 31, and heating rod 331 hole 312 through casing 31 enters into baking space.Also be provided with temperature sensor in baking space, temperature sensor is connected with control circuit and prevents temperature in described baking space too high.Material to be coated described in the present invention is Copper Foil, and baking temperature higher limit is 150 DEG C, and when the temperature in baking space is more than or equal to 150 DEG C, control circuit makes heating rod 331 stop heating.In the present invention, mode of heating adopts heating rod, also can be resistive heater, or infrared heating etc., heating technique of the prior art is a lot, no longer repeats herein.
Inert gas described in the present invention is nitrogen, also can other inert gas, as helium, argon gas.The present invention is specially adapted to the coating apparatus adopting oxidizable coating oar material.
A kind of drying unit 3 course of work of anti-oxidation coating apparatus is as follows.
Coating apparatus is opened, and drying unit 3 is in original state, and now two sealing plates 32 are positioned at casing 31 and rely on recently.Extraneous inert gas feeder starts to inflate to baking space, inert gas is discharged air outward, and inert gas is sealing plate 32 toward extrapolation simultaneously, and baking space starts to become large, stop when sealing plate 32 outwards moves and encounters limited block, baking space is at this moment maximum; Now oxygen sensor detects the oxygen content in baking space, if oxygen content is greater than preset value, one preferred preset value is the oxygen content 0.1% in baking space, (by volume gauge calculation) then combustion mechanism 314 lights a fire, burning hydrogen, consumes the oxygen in baking space, until hydrogen has gone out, hydrogen feeding mechanism stops supply of hydrogen, otherwise combustion mechanism 314 misfires; Then material to be dried just can enter baking space from resigning hole 321 and toast.The material of finally drying moves toward wrap-up 5 through rear drive equipment 4.
As shown in Figure 6, the present invention also provides a kind of coating furnace drying method, comprises the following steps:
Step S1: inert gas injecting in described baking space, inert gas moves to casing 31 both sides the volume increasing baking space described sealing plate 32, when baking space is maximum, oxygen sensor detects the oxygen content in baking space, if oxygen content exceedes preset value, just enter step 2, otherwise just enter step 3; Step S2, the basis of step S1 keeps the supply of inert gas, and simultaneously combustion mechanism 314 is lighted a fire, burning hydrogen to consume the oxygen in baking space, until hydrogen no longer burns; Step S3: still keep the supply of inert gas to prevent oxygen from entering and allow heating arrangements 33 to baking space heating, until temperature rises to operating temperature, the preferred operating temperature range of the present invention is 80 DEG C ~ 120 DEG C; Step S4: keep the supply of inert gas to prevent oxygen from entering, when the temperature in described baking space reaches operating temperature, applying material to be dried enters in baking space and toasts.Step S5: wrap-up 5 has drawn the material of having dried in.Temperature in simultaneous temperature sensor complete monitoring baking space, when the temperature in baking space is more than or equal to 150 DEG C, control circuit controls heating rod 331 and quits work, and undergoes no deterioration or burns, guarantee the quality safety of product to protect material.
Claims (10)
1. an anti-oxidation coating apparatus, comprise the wrap-up that unwinding device, coater head, drying unit and the recovery of placing material to be coated have been coated with the material of having dried, it is characterized in that, described drying unit comprises the casing that control circuit and two communicate, casing two is provided with moveable sealing plate, sealing plate is provided with the resigning hole allowing material pass through, sealing plate and casing form baking space, are provided with heating arrangements, the inert gas input hole be communicated with extraneous inertia feeder and combustion mechanism in described baking space; Described sealing plate moves to casing both sides under the effect of inert gas, and combustion mechanism igniting simultaneously consumes the oxygen in described baking space.
2. anti-oxidation coating apparatus according to claim 1, is characterized in that, described casing is provided with sliding rail, and sealing plate is provided with the slide block matched with sliding rail.
3. anti-oxidation coating apparatus according to claim 2, is characterized in that, described casing is provided with the fixed block that restriction sealing plate departs from casing.
4. anti-oxidation coating apparatus according to claim 1, is characterized in that, described material to be coated is Copper Foil volume, and Copper Foil volume is positioned on unwinding device, coats anaerobic oven dry in drying unit after oar material through coater head.
5. anti-oxidation coating apparatus according to claim 1, it is characterized in that, described heating arrangements comprises temperature sensor and heating component, and heating component is positioned on described casing, and temperature sensor is connected with described control circuit and prevents temperature in described baking space too high.
6. anti-oxidation coating apparatus according to claim 1, is characterized in that, described combustion mechanism comprises ignition and hydrogen, and combustion of hydrogen consumes the oxygen in described baking space and forms water vapour.
7. the anti-oxidation coating apparatus according to claim 1 to 6 any one, is characterized in that, be provided with the oxygen sensor of oxygen content in the described baking space of monitoring in described casing, oxygen sensor is connected with control circuit.
8. anti-oxidation coating apparatus according to claim 7, is characterized in that, described inert gas is nitrogen or argon gas.
9. anti-oxidation coating apparatus according to claim 8, is characterized in that, drying unit is one or more.
10. be coated with a furnace drying method, standby for the coating as described in claim 1 to 7 any one, it is characterized in that, comprise the following steps:
(1) toward inert gas injecting in described baking space, and described sealing plate is moved to casing both sides, increase the volume of baking space;
(2) keep the supply of inert gas to prevent oxygen from entering, light mechanism simultaneously and light a fire in baking space, consume the oxygen in described barbecue space;
(3) keep the supply of inert gas to prevent oxygen from entering, heating arrangements heats to baking space;
(4) keep the supply of inert gas to prevent oxygen from entering, when the temperature in described baking space reaches preset temperature, applying material to be dried enters in baking space and toasts;
(5) wrap-up has drawn the material of having dried in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510446274.8A CN104959282B (en) | 2015-07-27 | 2015-07-27 | A kind of anti-oxidation coating apparatus and coating furnace drying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510446274.8A CN104959282B (en) | 2015-07-27 | 2015-07-27 | A kind of anti-oxidation coating apparatus and coating furnace drying method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104959282A true CN104959282A (en) | 2015-10-07 |
| CN104959282B CN104959282B (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510446274.8A Active CN104959282B (en) | 2015-07-27 | 2015-07-27 | A kind of anti-oxidation coating apparatus and coating furnace drying method |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843073A (en) * | 2017-11-24 | 2018-03-27 | 合肥真萍电子科技有限公司 | A kind of special PI anaerobics curing oven of integrated circuit wafer level |
| CN109573341A (en) * | 2018-10-31 | 2019-04-05 | 贵州固达电缆有限公司 | A kind of copper wire coils anti-oxidation storage device, method and burning bucket |
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|---|---|---|---|---|
| JP2004361015A (en) * | 2003-06-05 | 2004-12-24 | Fuji Photo Film Co Ltd | Drying method and device for coating film |
| JP2011069583A (en) * | 2009-09-28 | 2011-04-07 | Dainippon Printing Co Ltd | Drying device, drying system, drying method and method of manufacturing base material including coating |
| CN203599025U (en) * | 2013-12-05 | 2014-05-21 | 江苏鸿捷环保工程有限公司 | Varnish stoving house capable of processing tail gas with ultraviolet rays |
| CN204866400U (en) * | 2015-07-27 | 2015-12-16 | 路密 | Anti -oxidation coating equipment |
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2015
- 2015-07-27 CN CN201510446274.8A patent/CN104959282B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004361015A (en) * | 2003-06-05 | 2004-12-24 | Fuji Photo Film Co Ltd | Drying method and device for coating film |
| JP2011069583A (en) * | 2009-09-28 | 2011-04-07 | Dainippon Printing Co Ltd | Drying device, drying system, drying method and method of manufacturing base material including coating |
| CN203599025U (en) * | 2013-12-05 | 2014-05-21 | 江苏鸿捷环保工程有限公司 | Varnish stoving house capable of processing tail gas with ultraviolet rays |
| CN204866400U (en) * | 2015-07-27 | 2015-12-16 | 路密 | Anti -oxidation coating equipment |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843073A (en) * | 2017-11-24 | 2018-03-27 | 合肥真萍电子科技有限公司 | A kind of special PI anaerobics curing oven of integrated circuit wafer level |
| CN109573341A (en) * | 2018-10-31 | 2019-04-05 | 贵州固达电缆有限公司 | A kind of copper wire coils anti-oxidation storage device, method and burning bucket |
| CN109573341B (en) * | 2018-10-31 | 2019-10-11 | 贵州固达电缆有限公司 | A kind of copper wire coils anti-oxidation storage device, method and burning bucket |
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| CN104959282B (en) | 2017-12-12 |
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