CN110337153B - Electrode tube - Google Patents
Electrode tube Download PDFInfo
- Publication number
- CN110337153B CN110337153B CN201910712815.5A CN201910712815A CN110337153B CN 110337153 B CN110337153 B CN 110337153B CN 201910712815 A CN201910712815 A CN 201910712815A CN 110337153 B CN110337153 B CN 110337153B
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- CN
- China
- Prior art keywords
- electrode
- barrel
- heat conduction
- gusset
- conduction hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 235000017166 Bambusa arundinacea Nutrition 0.000 claims abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims abstract 2
- 241001330002 Bambuseae Species 0.000 claims abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims abstract 2
- 239000011425 bamboo Substances 0.000 claims abstract 2
- 238000005245 sintering Methods 0.000 abstract description 16
- 239000000725 suspension Substances 0.000 abstract description 5
- 239000002003 electrode paste Substances 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 7
- 238000003723 Smelting Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 241001391944 Commicarpus scandens Species 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/02—Ohmic resistance heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/02—Details
- H05B3/03—Electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Discharge Heating (AREA)
- Resistance Heating (AREA)
Abstract
The utility model provides an electrode section of thick bamboo, is cylindrical and upper and lower open barrel, barrel internal surface evenly is provided with many gusset along radial, the gusset extends to the center pin direction of barrel, the one end of gusset with barrel parallel and level, the other end protrusion in the barrel, vertically be provided with a plurality of heat conduction holes of a row on the gusset, the diameter of heat conduction hole with the ratio of gusset width is between 0.45-0.60, adjacent the hole pitch of heat conduction hole with the ratio of heat conduction hole diameter is between 1.6-1.65, the distance of heat conduction hole on top to the gusset top with the distance of heat conduction hole on bottom to the gusset bottom all be less than the heat conduction hole diameter. The heat conducting holes on the rib plates are reasonably arranged, so that the electrode sintering quality is better, the strength is higher, and accidents such as electrode suspension paste, electrode turning and block dropping before electrode sintering, electrode roasting too slow, electrode soft breaking and hard breaking and the like can be effectively solved.
Description
Technical Field
The invention relates to a submerged arc furnace component, in particular to an electrode barrel.
Background
The electrode cylinder is a device applied to an ore-smelting furnace, and the inner rib plate plays roles of electric conduction and tensile strength in the sintering period of the self-baking electrode. The main characteristics are that: firstly, electrode paste is sintered into an electrode, the electrode paste is melted, volatilized and molded by means of resistance heat high temperature of a rib plate, and finally the electrode paste can conduct electricity to work normally when sintered into the electrode. Secondly, the electrode paste before being sintered into the electrode is not strong, and the electrode paste and the upper half part of the electrode are connected without fracture by bonding, extruding and communicating with each other through round holes on the rib plates and adding the tensile strength of the rib plates. Thirdly, the sintering speed and the intensity of the electrode are closely related to the welding quality of the electrode cylinder and the rib plate, the number of holes punched in the rib plate and the aperture size. The heat conduction holes on the rib plates of the existing electrode barrel are unreasonable in arrangement, compactness, aperture size and the like are unreasonable, so that the electrode roasting is slow, the electrode strength is low, and the electrode failure rate is high.
Disclosure of Invention
According to the electrode tube, the heat conducting holes are reasonably arranged on the rib plates, so that the electrode sintering quality is better, the strength is higher, accidents such as suspension paste, electrode turning and falling of the electrode before sintering, electrode roasting is too slow, electrode soft breakage and hard breakage and the like can be effectively solved, and the failure rate of the electrode can be effectively reduced.
The invention provides an electrode cylinder, which comprises a cylindrical cylinder body with upper and lower openings, wherein a plurality of rib plates are radially and uniformly arranged on the inner surface of the cylinder body, the rib plates extend towards the central axis direction of the cylinder body, one end of each rib plate is flush with the cylinder body, the other end of each rib plate protrudes out of the cylinder body, a row of a plurality of heat conducting holes are vertically arranged on each rib plate, the ratio of the diameter of each heat conducting hole to the width of each rib plate is between 0.45 and 0.60, the ratio of the hole distance of each adjacent heat conducting hole to the diameter of each heat conducting hole is between 1.6 and 1.65, and the distance from the heat conducting hole at the top end of each rib plate to the heat conducting hole at the bottom end of each rib plate is smaller than the diameter of each heat conducting hole.
Preferably, the width of the rib plate is 270-300mm, the diameter of the heat conduction hole is 140-160mm, and the hole pitch of the adjacent heat conduction holes is 235-255mm.
Preferably, the diameter of the heat conducting hole is 150mm, the width of the rib plate is 285mm, and the hole pitch of the heat conducting hole is 245mm.
Preferably, the length of the cylinder body is 1150-1350mm, and one end of the rib plate protrudes out of the cylinder body 230-280mm.
Preferably, one end of the rib plate protrudes from the cylinder body by 250mm, and the length of the cylinder body is 1270mm.
Preferably, the centers of the heat conduction holes on the same rib plate are on the same straight line, and the heat conduction holes are positioned on the rib plate at equal intervals up and down.
Preferably, the heat conducting hole is located on a side close to the cylinder.
Preferably, one end of the cylinder body flush with the rib plate is provided with a circle of connecting ring, the diameter of the connecting ring is smaller than that of the cylinder body, one side, close to the cylinder body, of the rib plate protruding portion is provided with a clamping opening matched with the connecting ring, and the clamping opening is located in the cylinder body.
Preferably, one end of the connecting ring is positioned in the cylinder body, and the other end of the connecting ring protrudes out of the cylinder body.
Preferably, the number of the rib plates is 8
After the technical scheme is adopted, the invention has the following beneficial effects:
according to the electrode tube provided by the invention, the heat conducting holes on the rib plates are reasonably arranged, so that the electrode sintering quality is better, the strength is higher, the accidents of suspension paste, electrode turning and block dropping before electrode sintering, too slow electrode roasting, electrode soft breaking, electrode hard breaking and the like can be effectively solved, and the failure rate of the electrode is effectively reduced.
Drawings
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of preferred embodiments of the invention, as illustrated in the accompanying drawings. Like reference numerals refer to like parts throughout the drawings, and the drawings are not intentionally drawn to scale on actual size or the like, with emphasis on illustrating the principles of the invention.
FIG. 1 is an overall construction view of an electrode cartridge according to a preferred embodiment of the present invention;
FIG. 2 is a bottom view of the electrode cartridge of the preferred embodiment of the present invention;
FIG. 3 is a cross-sectional view of an electrode cartridge according to a preferred embodiment of the present invention;
FIG. 4 is an enlarged view of the preferred embodiment I of the present invention;
FIG. 5 is a schematic view of the connection of the electrode cartridge according to the preferred embodiment of the present invention;
fig. 6 is a structural view of a gusset according to a preferred embodiment of the present invention.
Reference numerals: 1 barrel, 2 gusset, 21 heat conduction hole, 22 card hold mouths, 3 go-between.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and specific embodiments so that those skilled in the art may better understand the present invention and practice it, but the examples are not to be construed as limiting the present invention.
Referring to fig. 1-6, the invention provides an electrode cylinder, the electrode cylinder is positioned in an ore smelting furnace, a plurality of electrode cylinders are connected in series, in metal smelting, electrode paste in the electrode cylinder is sintered into an electrode, the electrode cylinder comprises a cylindrical cylinder body 1, a plurality of rib plates 2 are uniformly arranged on the inner surface of the cylinder body 1 in the radial direction, and therefore, included angles among the rib plates 2 are certain, and the inner area of the cylinder body 1 can be uniformly divided into a plurality of parts. The rib plates 2 arranged in this way can make heating more uniform and the heating speed is higher. The rib plates 2 are vertically arranged and perpendicular to the tangent line of the inner surface of the cylinder body 1, so that the rib plates 2 extend from the inner surface of the cylinder body 1 to the central shaft of the cylinder body 1, the inner space of the cylinder body 1 is uniformly divided into a plurality of areas between the rib plates 2, and the uniform heating of the electrode paste can be ensured. One end of each rib plate 2 is flush with the cylinder body 1, the other end of each rib plate is protruded out of the cylinder body 1, the length of each rib plate 2 can be increased, when the electrode cylinders are connected with each other, the protruded rib plates 2 can be contacted with each other, and therefore disconnection conditions do not exist at the joint of the rib plates 2, and heating uniformity is guaranteed. A row of heat conducting holes 21 are vertically arranged on the rib plate 2, the ratio of the diameter of each heat conducting hole 21 to the width of the rib plate 2 is 0.45-0.60, the ratio of the distance between every two adjacent heat conducting holes 21 to the diameter of each heat conducting hole 21 is 0.6-0.65, and the distance from the top end of the heat conducting hole 21 to the top end of the rib plate 2 and the distance from the bottom end of the heat conducting hole 21 to the bottom end of the rib plate 2 are smaller than the diameters of the heat conducting holes 21. In the smelting process, electrode paste is sintered into an electrode, the electrode paste is melted, volatilized and molded by the resistance heat of the rib plate 2 at high temperature, and finally the electrode can be sintered into the electrode to conduct electricity and work normally. The electrode paste before being sintered into the electrode is not strong, the heat conduction holes 21 on the rib plates 2 are mutually bonded, pressed and communicated, the heat conduction holes 21 have the functions of increasing the fluidity and the intercommunication of the electrode paste when the electrode is baked, ensuring that the compactness of baked components is uniform, accelerating the sintering progress and ensuring the baking quality of the electrode, thereby enhancing the tensile strength and the controllability of the electrode, and the rib plates 2 improve the tensile strength to connect the electrode paste with the upper half part of the electrode without breaking. Therefore, the sintering speed and the strength of the electrode are closely related to the welding quality of the electrode cylinder and the rib plate 2, the number of the heat conduction holes 21 on the rib plate 2 and the aperture size. The ratio of the diameter of the heat conducting hole 21 to the width of the rib plate 2 is between 0.45 and 0.60, namely the diameter of the heat conducting hole 21 basically occupies the general width of the rib plate 2. The ratio of the pitch of adjacent heat conducting holes 21 to the diameter of the heat conducting holes 21 is between 1.6 and 1.65. The distance from the topmost heat conduction hole 21 to the top end of the rib plate 2 and the distance from the lowest heat conduction hole 21 to the bottom end of the rib plate 2 are smaller than the diameters of the heat conduction holes 21, namely, the heat conduction holes 21 are distributed on the rib plate 2 in a row, and the distribution of the heat conduction holes 21 realizes the maximum use of the area of the rib plate 2. The ratio of the diameter of the heat conducting holes 21 to the width of the rib plate 2, the ratio of the hole distance of the adjacent heat conducting holes 21 to the diameter of the heat conducting holes 21, and the limitation of the two ratio ranges, namely the compactness of the heat conducting holes 21 and the ratio of the area of the heat conducting holes 21 to the total area of the rib plate 2 are limited in a certain range. In the range, the contact bonding surface of the rib plate 2 and the electrode paste is larger, the roasting speed is higher, the electrode sintering quality is better, the strength is higher, and the accidents of suspension paste, electrode turning and block dropping before electrode sintering, too slow electrode roasting, electrode soft breakage, hard breakage and the like can be effectively solved.
In the preferred embodiment, the number of the rib plates 2 is 8, so that the included angle between every two adjacent rib plates 2 is 45 degrees, the rib plates 2 divide the cylinder body 1 into 8 uniform areas, the number of the 8 rib plates 2 is reasonable, the heating uniformity and the heating rapidness can be ensured, and the electrode after sintering molding has good strength and is not easy to break.
In the preferred embodiment, the centers of the heat conducting holes 21 are on a straight line, and the heat conducting holes 21 are located on the rib plate 2 at equal intervals. Namely, the heat conducting holes 21 are arranged in a vertical row on the rib plate 2, and the distances among the heat conducting holes 21 are equal, so that the heat conducting holes 21 are uniformly distributed on the rib plate 2, and the heating uniformity is ensured. In a further preferred embodiment, the heat conducting aperture 21 is located on the side close to the cylinder 1. Namely, the heat conduction hole 21 is positioned at one side of the deflection cylinder body 1, and the distance from the center of the heat conduction hole 21 to the outer side of the rib plate 2 is larger than the distance from the center of the heat conduction hole to the cylinder body 1, so that in the sintering process, the electrode is bonded, extruded and communicated to the side close to the cylinder body 1 as much as possible, and the electrode is not easy to break.
In a preferred embodiment, the width of the rib plate 2 is 270-300mm, the diameter of the heat conducting holes 21 is 140-160mm, and the hole distance between the heat conducting holes 21 is 235-255mm. In a further preferred embodiment, the diameter of the heat conducting holes 21 is 150mm, the width of the rib plates 2 is 285mm, and the hole distance between the heat conducting holes 21 is 245mm. The width of the rib plates 2, the diameters of the heat conducting holes 21 and the distance between the heat conducting holes 21 in the range are optimal, and the requirement of the production capacity of the large-scale submerged arc furnace can be met.
In the preferred embodiment, the length of the cylinder 1 is 1150-1350mm, and one end of the rib plate 2 protrudes from the cylinder 1230-280mm. In a further preferred embodiment, one end of the rib plate 2 protrudes from the cylinder 1250mm, and the length of the cylinder 1 is 1270mm. That is, the protruding portion can accommodate one heat conduction hole 21 (the diameter of one heat conduction hole 21 is 140-160mm, the distance between the heat conduction holes 21 is 85-105 mm), when the electrode cylinders are connected, the protruding rib plates 2 can extend to the electrode cylinder at the lower part and contact the rib plates 2 inside the electrode cylinder, the length of the protruding portion can ensure good contact within the range, and certain clamping effect can be achieved between the protruding portion and the electrode cylinder.
In a preferred embodiment, a circle of connecting ring 3 is arranged at one end of the cylinder body 1 flush with the rib plate 2, the diameter of the connecting ring 3 is smaller than that of the cylinder body 1, a clamping opening 22 matched with the connecting ring 3 is formed in one side, close to the cylinder body 1, of the protruding portion of the rib plate 2, and the clamping opening 22 is partially located in the cylinder body 1. In this way, a gap is formed between the cylinder 1 and the rib plate 2 at the protruding position of the rib plate 2. When the electrode cylinders are connected, the connecting ring 3 of the lower electrode cylinder is sleeved outside the clamping opening 22 of the rib plate 2 of the upper electrode cylinder and inserted into the gaps of the cylinder body 1 and the rib plate 2 of the upper electrode cylinder, so that the clamping and fixing of the upper electrode cylinder and the lower electrode cylinder are realized. In a further preferred embodiment, one end of the connecting ring 3 is located in the cylinder 1, and the other end protrudes from the cylinder 1, that is, a part of the connecting ring 3 is fixedly connected in the cylinder 1, and the fixing manner may be a bolt, a welding manner, or the like, and the other part protrudes from the cylinder 1, so that the connecting ring is conveniently inserted into the clamping opening 22.
Verification example: the following data are numerical tables for measuring the change of failure rate of the fired electrode by changing the values of the rib plate width, the heat conduction hole diameter and the hole pitch in the actual test. The ratio 1 is the ratio of the diameter of the heat conducting hole to the width of the rib plate, and the ratio 2 is the ratio of the hole distance of the adjacent heat conducting hole to the diameter of the heat conducting hole.
According to the electrode tube provided by the invention, the heat conduction holes on the rib plates are reasonably arranged, namely, the compactness and the hole site aperture are reasonable, so that the electrode sintering quality is better, the strength is higher, and the accidents of electrode suspension, electrode turning and blocking, electrode roasting too slow, electrode soft breakage, electrode hard breakage and the like before electrode sintering can be effectively solved. The rib plates are provided with clamping openings, the cylinder body is provided with connecting rings, and the upper electrode cylinder and the lower electrode cylinder can be clamped and fixed, so that the subsequent further connection and fixation are facilitated.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (6)
1. The utility model provides an electrode section of thick bamboo, its characterized in that includes being cylindrical and upper and lower open barrel, the barrel internal surface evenly is provided with many gusset along radial, the gusset extends to the center pin direction of barrel, the one end of gusset with the barrel parallel and level, the other end protrusion in the barrel, vertically be provided with a plurality of heat conduction holes of a row on the gusset, the diameter of heat conduction hole with the ratio of gusset width is between 0.45-0.60, adjacent the hole pitch of heat conduction hole with the ratio of heat conduction hole diameter is between 1.6-1.65, the distance of heat conduction hole on top to the gusset top and the distance of heat conduction hole on the bottom of gusset are all less than the heat conduction hole diameter, the gusset width is 270-300mm, the heat conduction hole diameter is 140-160mm, the hole pitch of adjacent heat conduction hole is 235-255mm, the length of barrel is 1150-1350mm, one end protrusion in barrel 230-280mm, with barrel one end is provided with the bulge circle retainer plate diameter, the retainer plate diameter is located in the barrel one side of opening is located in the barrel, the retainer plate diameter is located in the barrel is close to the opening.
2. The electrode cartridge of claim 1, wherein the diameter of the heat conducting holes is 150mm, the width of the rib plate is 285mm, and the pitch of the adjacent heat conducting holes is 245mm.
3. The electrode cartridge of claim 1, wherein one end of the rib plate protrudes from the cylinder by 250mm, and the length of the cylinder is 1270mm.
4. The electrode tube of claim 1, wherein the centers of the heat conducting holes of the same rib plate are on the same straight line, and the heat conducting holes are positioned on the rib plate at equal intervals up and down.
5. The electrode cartridge of claim 4, wherein the thermally conductive aperture is located on a side of the barrel adjacent to the barrel.
6. The electrode cartridge of claim 1, wherein the number of webs is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910712815.5A CN110337153B (en) | 2019-08-02 | 2019-08-02 | Electrode tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910712815.5A CN110337153B (en) | 2019-08-02 | 2019-08-02 | Electrode tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110337153A CN110337153A (en) | 2019-10-15 |
| CN110337153B true CN110337153B (en) | 2024-03-22 |
Family
ID=68148482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910712815.5A Active CN110337153B (en) | 2019-08-02 | 2019-08-02 | Electrode tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110337153B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093116A (en) * | 1993-09-11 | 1994-10-05 | 张铁铮 | A kind of technology and self baking electrode of producing low-iron silicon-aluminium alloy |
| RU2359432C1 (en) * | 2008-03-28 | 2009-06-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Consumable electrode for vacuum arc furnace and method of making it |
| CN202005005U (en) * | 2011-02-17 | 2011-10-05 | 中信锦州金属股份有限公司 | Self-baking electrode shell |
| CN202135352U (en) * | 2011-06-23 | 2012-02-01 | 韩爱华 | Center tube type electrode casing |
| CN202740465U (en) * | 2012-06-25 | 2013-02-20 | 重庆派格机械设备有限责任公司 | Electrode fixed bracket for connecting grounding electrode with discharge electrode |
| CN103737240A (en) * | 2013-07-10 | 2014-04-23 | 李会发 | Method for manufacturing electrode container in standardized manner |
| CN103851921A (en) * | 2012-11-28 | 2014-06-11 | 沈阳铝镁设计研究院有限公司 | Pneumatic grab bucket for holding furnace |
| CN205283868U (en) * | 2015-12-18 | 2016-06-01 | 中盐吉兰泰盐化集团有限公司 | Carbide stove electrode shell |
| CN109297309A (en) * | 2018-11-21 | 2019-02-01 | 韩爱华 | A kind of novel holder formula electrode shell structure and its installation butt-joint process |
| CN210247080U (en) * | 2019-08-02 | 2020-04-03 | 阳江翌川金属科技有限公司 | Electrode cylinder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150084823A (en) * | 2012-10-09 | 2015-07-22 | 렌돌 리 데이비스 | Electrode extension guide for welding systems |
-
2019
- 2019-08-02 CN CN201910712815.5A patent/CN110337153B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093116A (en) * | 1993-09-11 | 1994-10-05 | 张铁铮 | A kind of technology and self baking electrode of producing low-iron silicon-aluminium alloy |
| RU2359432C1 (en) * | 2008-03-28 | 2009-06-20 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Consumable electrode for vacuum arc furnace and method of making it |
| CN202005005U (en) * | 2011-02-17 | 2011-10-05 | 中信锦州金属股份有限公司 | Self-baking electrode shell |
| CN202135352U (en) * | 2011-06-23 | 2012-02-01 | 韩爱华 | Center tube type electrode casing |
| CN202740465U (en) * | 2012-06-25 | 2013-02-20 | 重庆派格机械设备有限责任公司 | Electrode fixed bracket for connecting grounding electrode with discharge electrode |
| CN103851921A (en) * | 2012-11-28 | 2014-06-11 | 沈阳铝镁设计研究院有限公司 | Pneumatic grab bucket for holding furnace |
| CN103737240A (en) * | 2013-07-10 | 2014-04-23 | 李会发 | Method for manufacturing electrode container in standardized manner |
| CN205283868U (en) * | 2015-12-18 | 2016-06-01 | 中盐吉兰泰盐化集团有限公司 | Carbide stove electrode shell |
| CN109297309A (en) * | 2018-11-21 | 2019-02-01 | 韩爱华 | A kind of novel holder formula electrode shell structure and its installation butt-joint process |
| CN210247080U (en) * | 2019-08-02 | 2020-04-03 | 阳江翌川金属科技有限公司 | Electrode cylinder |
Also Published As
| Publication number | Publication date |
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| CN110337153A (en) | 2019-10-15 |
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