CN205950263U - Integrated into one piece lightning protection net and preparation facilities thereof - Google Patents
Integrated into one piece lightning protection net and preparation facilities thereof Download PDFInfo
- Publication number
- CN205950263U CN205950263U CN201620944237.XU CN201620944237U CN205950263U CN 205950263 U CN205950263 U CN 205950263U CN 201620944237 U CN201620944237 U CN 201620944237U CN 205950263 U CN205950263 U CN 205950263U
- Authority
- CN
- China
- Prior art keywords
- gear
- draw roll
- lightning protection
- protection net
- integrally formed
- 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.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model discloses an integrated into one piece lightning protection net, including and cutting the tensile body that forms of hole extension by one whole metal sheet process, the direction with great ease of body is law repeated permutation's diamond mesh hole. The utility model also discloses a preparation facilities of integrated into one piece lightning protection net. The utility model relates to an integrated into one piece lightning protection net, single structure, one take shape, eliminated the mesh grid disintegrate with varistor in the twinkling of an eye, one leads to shaping lightning protection net spreads back, and the surface is smooth, has fine pneumatic performance, the lightning protection ability of integrated into one piece lightning protection net can reach 200kA, can extensively be used for the lightning protection of aircraft fuselage, wing, rudder, fin etc. And aerogenerator blade.
Description
Technical field
This utility model belongs to Lightning Prevention Technique field and in particular to one kind is integrally formed lightning protection net, further relates to above-mentioned
It is integrally formed the preparation facilitiess of lightning protection net.
Background technology
Developing rapidly with aerospace field, the epoch of traditional all-metal construction material are over, and aviation is navigated
It and wind-powered electricity generation field adopt high intensity, low-quality fibre reinforced composites in a large number, and the electric conductivity of these materials
But less than aluminum many, when meeting with thunderbolt it is impossible to rapidly guide thunder and lightning, thus causing to material to damage.Therefore must be special
Not Zhu Yi thunder and lightning environment, take measures provide conductive path thunder and lightning is guided to guarantee flight safety rapidly.
In recent years, the problem of lightning protection has increasingly been paid attention in Aero-Space and wind-powered electricity generation field, takes a series of
Lightning protection method.In wind-powered electricity generation field, most common method has：(1) metal blade tip, arrester and down conductor system are adopted；
(2) coupled together using powder type or section type flow guide bar and blade tip or arrester, expand blade connects sudden strain of a muscle area；(3)
Using not only arrester can be served as but also can serve as the lightning protection mesh of downlead.In aviation field, it is integrally formed lightning protection net and makees
For a kind of lightning protection method, compared with surface spraying metal or braiding silk screen, have lightweight, lightning protection effect is good
Advantage, therefore also has important application in aviation field.
In patent《Lightning protection mesh》(application number：201010220841.5, the applying date：2010.6.29, publication number：
101949366, publication date：2011.1.19 in), we be realised that a kind of Weaving type lightning protection of metal wire knitted
Net is it is provided that certain lightning protection effect, but the shortcoming of braiding silk screen is in length and breadth between the tinsel of both direction
Interface portion has the larger contact resistance of ratio, causes its electric conductivity to decline, thus reducing the lightning protection effect of braided metal silk screen
Really, the surface irregularity of Weaving type wire netting simultaneously, the aeroperformance of impact aircraft and blade.
Utility model content
The purpose of this utility model is to provide one kind to be integrally formed lightning protection net, solves existing braiding lightning protection mesh lightning protection
The weak problem of effect.
The purpose of this utility model also resides in the above-mentioned preparation facilitiess being integrally formed lightning protection net of offer.
The first technical scheme that this utility model is adopted is that one kind is integrally formed lightning protection net, including by a whole Zhang Jin
Belong to the body through cut hole extension stretching for the plate, the direction in length and breadth of body is the diamond-shaped meshes of rule repeated arrangement.
The feature of the first technical scheme of the present utility model also resides in：
Metallic plate is any in aluminium alloy or the metallic nickel of copper alloy or monel metal or rustless steel or electroplate
A kind of.
The second technical scheme that this utility model is adopted is, a kind of preparation facilitiess being integrally formed lightning protection net, including
The pay-off that sets gradually, notching device, stretching device, straightening device, are provided with slow between notching device and stretching device
Punching band.
The feature of second technical scheme of the present utility model also resides in：
Pay-off includes feeding roller a and feeding roller b, and feeding roller a and feeding roller b is on same vertical curve and level pair
Claim.
Notching device includes workbench, and workbench is provided with processing mold group and pneumatic means, processing mold group and gas
Dynamic device connects.
Processing mold group is made up of the mould that two row cross sections are rhombus, and row's mould and previous row's mould stagger half afterwards
Long Pedicellus et Pericarpium Trapae side size.
Stretching device includes draw roll a, draw roll b, the draw roll c being arranged parallel to each other successively, with draw roll a, stretching
Horizontal symmetry is provided with draw roll d, draw roll e, draw roll f successively for roller b, draw roll c, and the two ends of draw roll d coaxially set respectively
It is equipped with gear b and gear g, the two ends of draw roll e are coaxially arranged with gear d and gear h respectively, and the two ends of draw roll f are same respectively
Axle is provided with gear f and gear i；
Gear b and gear a engagement, gear a is connected with main power wheel, gear d and gear c engagement, and gear c and gear b is same
Axle, gear f and gear e engagement, gear e is coaxial with gear d；
Gear g, gear h, gear i are engaged with gear j, gear k, gear l respectively, gear j, gear k, gear l respectively with
Draw roll a, draw roll b, draw roll c are coaxial；
Draw roll a, draw roll b, draw roll c are also connected with pressure-regulating device respectively；
Draw roll d, draw roll e, draw roll f are arranged on base；Draw roll d, draw roll e, the top setting of draw roll f
There is working face, working face has breach at draw roll d, draw roll e, draw roll f.
Straightening device includes leveling roller a and leveling roller b, and leveling roller a and leveling roller b is on same vertical curve and level pair
Claim.
The beneficial effects of the utility model are：This utility model one kind is integrally formed lightning protection net, single structure, an one-tenth
Shape, eliminates disintegrating and moment variable resistance of mesh grid；After one logical molding lightning protection net paving, smooth surface, have pneumatic well
Performance；The lightning protection ability being integrally formed lightning protection net can reach 200kA, can be widely used for airframe, wing, rudder,
Empennage etc. and the lightning protection of blade of wind-driven generator.
Brief description
Fig. 1 is a kind of structural representation being integrally formed lightning protection net of this utility model；
Fig. 2 is the partial enlarged drawing of a-quadrant in Fig. 1；
Fig. 3 is a kind of easy structure schematic diagram of the preparation facilitiess being integrally formed lightning protection net of this utility model；
Fig. 4 is the structural representation of notching device in a kind of preparation facilitiess being integrally formed lightning protection net of this utility model；
Fig. 5 is the structural representation of processing mold group in a kind of preparation facilitiess being integrally formed lightning protection net of this utility model；
Fig. 6 is the partial enlarged drawing one of mould in a kind of preparation facilitiess being integrally formed lightning protection net of this utility model；
Fig. 7 is the partial enlarged drawing two of mould in a kind of preparation facilitiess being integrally formed lightning protection net of this utility model；
Fig. 8 is stretching device front view in a kind of preparation facilitiess being integrally formed lightning protection net of this utility model；
Fig. 9 is stretching device top view in a kind of preparation facilitiess being integrally formed lightning protection net of this utility model；
Figure 10 is stretching device rearview in a kind of preparation facilitiess being integrally formed lightning protection net of this utility model；
Figure 11 is to be integrally formed lightning protection net forming process in a kind of preparation method being integrally formed lightning protection net of this utility model
Figure.
In figure, 1. body, 2. feeding roller a, 3. processing mold group, 4. pressure-regulating device, 5. draw roll a, 6. draw roll
B, 7. draw roll c, 8. buffer strip, 9. leveling roller a, 10. feeding roller b, 11. draw roll d, 12. draw roll e, 13. draw roll f,
14. leveling roller b, 15. pneumatic means, 16. workbench, 17. working faces, 18. main power wheels, 19. gear a, 20. gear b,
21. gear c, 22. gear d, 23. gear e, 24. gear f, 25. gear g, 26. gear h, 27. gear i, 28. gear j, 29. teeth
Wheel k, 30. gear l, 31. bases.
Specific embodiment
With reference to the accompanying drawings and detailed description this utility model is described in detail.
This utility model one kind is integrally formed lightning protection net, and structure is as shown in figure 1, include by one whole metallic plate through cut hole
Extend the body 1 stretching, and the direction in length and breadth of body 1 is the diamond-shaped meshes of rule repeated arrangement, the office of a-quadrant in Fig. 1
Portion's enlarged drawing is that the structure of diamond-shaped meshes is as shown in Figure 2.
Be made into one molding lightning protection net metallic plate be aluminium alloy or copper alloy or monel metal or rustless steel or surface
Any one in silver-plated metallic nickel.
It is integrally formed lightning protection net total length can be processed according to demand.
Being integrally formed lightning protection net overall width is 500mm～1200mm.
The thickness being integrally formed lightning protection net is 0.05mm～0.40mm.
Being integrally formed lightning protection net long Pedicellus et Pericarpium Trapae side is 1.2～4.0mm.
Being integrally formed lightning protection net short Pedicellus et Pericarpium Trapae side is 0.6～2.5mm.
It is integrally formed a width of 0.1～0.3mm of stalk of lightning protection net.
A kind of preparation facilitiess being integrally formed lightning protection net of this utility model, the easy structure schematic diagram of device as shown in figure 3,
Including the pay-off setting gradually, notching device, stretching device, straightening device, arrange between notching device and stretching device
There is buffer strip 8.
Pay-off includes feeding roller a2 and feeding roller b10, feeding roller a2 and feeding roller b10 on same vertical curve and
Horizontal symmetry.
Notching device, as shown in figure 4, including workbench 16, workbench 16 is provided with processing mold group 3 and pneumatic means
15, processing mold group 3 is connected with pneumatic means 15.
Processing mold group 3 is made up of the mould that two row cross sections are rhombus as shown in Figure 5, row's mould and previous row's mould afterwards
Has the long half Pedicellus et Pericarpium Trapae side size that staggers, the partial enlarged drawing of the mould being rhombus for two kinds of cross sections as shown in Figure 6,7.
Stretching device front view is as shown in figure 8, top view is as shown in figure 9, rearview is as shown in Figure 10, including mutual successively
Draw roll a5 arranged in parallel, draw roll b6, draw roll c7, with draw roll a5, draw roll b6, draw roll c7 horizontal symmetry successively
It is provided with draw roll d11, draw roll e12, draw roll f13, the two ends of draw roll d11 are coaxially arranged with gear b20 and tooth respectively
Wheel g25, the two ends of draw roll e12 are coaxially arranged with gear d22 and gear h26 respectively, and the two ends of draw roll f13 coaxially set respectively
It is equipped with gear f24 and gear i27；
Gear b20 and gear a19 engagement, gear a19 is connected with main power wheel 18, gear d22 and gear c21 engagement, tooth
C21 is coaxial with gear b20 for wheel, gear f24 and gear e23 engagement, and gear e23 is coaxial with gear d22；
Gear g25, gear h26, gear i27 are engaged with gear j28, gear k29, gear l30 respectively, gear j28, gear
K29, gear l30 are coaxial with draw roll a5, draw roll b6, draw roll c7 respectively；
Draw roll a5, draw roll b6, draw roll c7 are also connected with pressure-regulating device 4 respectively；
Draw roll d11, draw roll e12, draw roll f13 are arranged on base 31；Draw roll d11, draw roll e12, stretching
The top of roller f13 is provided with working face 17, and working face 17 has scarce at draw roll d11, draw roll e12, draw roll f13
Mouthful.
Straightening device includes leveling roller a9 and leveling roller b14, leveling roller a9 and leveling roller b14 on same vertical curve and
Horizontal symmetry.
A kind of preparation method being integrally formed lightning protection net, be formed in one lightning protection net forming process figure as shown in figure 11, tool
Body is implemented according to following steps：
With the final mesh size of processing as A × B, width W, long Pedicellus et Pericarpium Trapae side perpendicular to the lightning protection net that is integrally formed of length direction is
Example.
Step 1：The early stage being integrally formed lightning protection net is processed
Metallic plate is carried out on slitter cutting, be cut into the metallic plate that width is W, then the metallic plate cutting exist
2～3 reciprocating deformation are carried out on level(l)ing machine, so not only can leveling metallic plate, prior thing can increase metallic plate
Toughness it is ensured that being not in phenomenon of rupture in the lightning protection net course of processing.
Step 2：It is integrally formed the preparation of lightning protection net
One whole metallic plate sends into notching device by the feeding roller a2 and feeding roller b10 of pay-off, feeding roller a2 and
Feeding roller b10 provides power for being entirely integrally formed the lightning protection net course of processing, and the processing mold group 3 of notching device is integrated lightning protection
Net processing mould used, processing mold group 3 is made up of the cutter head mold of a lot of rhombuses, will process how many mesh, processing mold
Will how many rhombohedral insert mould in group 3.The volume under pressure of processing mold group 3 is adjusted so that processing by pneumatic means 15
Set of molds 3 processes the network of different size L1 × L2 on a metal plate.The mesh of A × B to be processed, is transferred under cutter head mold
Pressure amount makes L1 be equal to A, by processing mold group 3, can process a size of mesh of A × L2, cut hole section in such as Fig. 4, then carries
The metallic plate having network passes through stretching device, the draw roll a5 of stretching device, draw roll b6, draw roll c7 and draw roll
The short Pedicellus et Pericarpium Trapae side L2 that network is carried out being stretched to lightning protection net by d11, draw roll e12, draw roll f13 cooperation is stretched to B, to be formed
Mesh size is A × B, width is the non-leveling lightning protection net of W, and the non-leveling lightning protection net eventually forming required size mesh passes through to rectify
The leveling roller a9 of leveling device and leveling roller b14 carries out leveling and adjusts lightning protection to the non-leveling lightning protection net with required size mesh
The thickness of net, obtains integrally formed lightning protection net body 1.
In the drawing process of lightning protection net, draw roll a5, draw roll b6, draw roll c7 have different velocities of rotation, stretching
Roller d11, draw roll e12, draw roll f13 are located at draw roll a5, draw roll b6, the underface of draw roll c7 respectively, and draw roll
A5, draw roll b6, draw roll c7 are symmetrical, have and draw roll a5, draw roll b6, draw roll c7 same speed.Work as lightning protection net
When being transported to draw roll a5, draw roll d11, lightning protection net will be stretched roller a5, draw roll d11 clamping, when lightning protection net forward
When going forward one by one, draw roll b6, draw roll e12 that lightning protection net leading edge will be rotated with faster speed clamp, thus can be in stretching
Form tension force produced by speed difference between roller a5, draw roll d11 and draw roll b6, draw roll e12, thus by lightning protection mesh
Stretching.Lightning protection net is widened further by draw roll c7, draw roll f13 with identical principle, to form finally required mesh
Size.In lightning protection net in constantly drawing process, also constantly, by leveling, leveling roller a9, b15 can be to final for lightning protection net
Product carries out leveling and adjusts the thickness of lightning protection net.
In drawing process, pressure-regulating device 4 can adjust draw roll a5, draw roll b6, the volume under pressure of draw roll c7.Main
Power wheel 18 carries moving gear a19, and gear a19 carries moving gear b20, so that draw roll d11 is with speed v1Rotate, draw roll d11
Band moving gear g25, gear g25 carry moving gear j28, and gear j28 drives draw roll a5 with speed v1Rotate, gear b20's is coaxial
Gear c21 band moving gear d22 rotates, so that draw roll e12 is with than v1Fast speed v2Rotate, draw roll e12 carries moving gear
H26, gear h26 carry moving gear k29, and gear k29 drives draw roll b6 with speed v2Rotate.Draw roll c7 and draw roll in the same manner
F13 is with than v2Fast speed v3Rotate, make lightning protection net be stretched to final size.
Processing mold group 3 due to being integrally formed lightning protection net is the course of processing of a up-and-down reciprocating, between centre has
Every process, and follow-up lightning protection net drawing process is a successional process.So louvered die group a and draw roll a5 it
Between have a buffer strip 8, have certain lightning protection net surplus, to ensure the seriality of whole process.
Step 3：The later stage being integrally formed lightning protection net is processed
Being integrally formed lightning protection net body 1 and must carry out with during ultrasonic washing unit surface cleaning after machining
Greasy dirt, is then dried at room temperature for static a period of time, after lightning protection net is dried, lightning protection net is carried out with annealing heat-treats, eliminates
The internal stress that lightning protection net occurs in process.
Claims (8)
1. a kind of be integrally formed lightning protection net it is characterised in that include by one whole metallic plate through cut hole extend stretching
Body (1), the direction in length and breadth of body (1) is the diamond-shaped meshes of rule repeated arrangement.
2. one kind according to claim 1 is integrally formed lightning protection net it is characterised in that described metallic plate is aluminium alloy or copper
Any one in the metallic nickel of alloy or monel metal or rustless steel or electroplate.
3. a kind of preparation facilitiess being integrally formed lightning protection net are it is characterised in that include pay-off, the otch dress setting gradually
Put, stretching device, straightening device, be provided with buffer strip (8) between notching device and stretching device.
4. a kind of preparation facilitiess being integrally formed lightning protection net according to claim 3 are it is characterised in that described pay-off
Including feeding roller a (2) and feeding roller b (10), feeding roller a (2) and feeding roller b (10) is on same vertical curve and level pair
Claim.
5. a kind of preparation facilitiess being integrally formed lightning protection net according to claim 3 are it is characterised in that described notching device
Including workbench (16), workbench (16) is provided with processing mold group (3) and pneumatic means (15), processing mold group (3) with
Pneumatic means (15) connects.
6. a kind of preparation facilitiess being integrally formed lightning protection net according to claim 5 are it is characterised in that described processing mold
Group (3) is made up of the mould that two row cross sections are rhombus, and row's mould and previous row's mould stagger long half Pedicellus et Pericarpium Trapae side size afterwards.
7. a kind of preparation facilitiess being integrally formed lightning protection net according to claim 3 are it is characterised in that described stretching device
Including the draw roll a (5) being arranged parallel to each other successively, draw roll b (6), draw roll c (7), with draw roll a (5), draw roll b
(6), horizontal symmetry is provided with draw roll d (11), draw roll e (12), draw roll f (13), draw roll d to draw roll c (7) successively
(11) two ends are coaxially arranged with gear b (20) and gear g (25) respectively, and the two ends of draw roll e (12) are coaxially arranged with respectively
The two ends of gear d (22) and gear h (26), draw roll f (13) are coaxially arranged with gear f (24) and gear i (27) respectively；
Gear b (20) and gear a (19) engagement, gear a (19) is connected with main power wheel (18), gear d (22) and gear c (21)
Engagement, gear c (21) and gear b (20) is coaxial, gear f (24) and gear e (23) engagement, and gear e (23) and gear d (22) is same
Axle；
Gear g (25), gear h (26), gear i (27) are engaged with gear j (28), gear k (29), gear l (30) respectively, gear
J (28), gear k (29), gear l (30) are coaxial with draw roll a (5), draw roll b (6), draw roll c (7) respectively；
Draw roll a (5), draw roll b (6), draw roll c (7) are also connected with pressure-regulating device (4) respectively；
Draw roll d (11), draw roll e (12), draw roll f (13) are arranged on base (31)；Draw roll d (11), draw roll e
(12), the top of draw roll f (13) is provided with working face (17), and working face (17) is in draw roll d (11), draw roll e
(12), draw roll f (13) place has breach.
8. a kind of preparation facilitiess being integrally formed lightning protection net according to claim 3 are it is characterised in that described straightening device
Including leveling roller a (9) and leveling roller b (14), leveling roller a (9) and leveling roller b (14) are on same vertical curve and level pair
Claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944237.XU CN205950263U (en) | 2016-08-25 | 2016-08-25 | Integrated into one piece lightning protection net and preparation facilities thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620944237.XU CN205950263U (en) | 2016-08-25 | 2016-08-25 | Integrated into one piece lightning protection net and preparation facilities thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205950263U true CN205950263U (en) | 2017-02-15 |
Family
ID=57980593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620944237.XU Active CN205950263U (en) | 2016-08-25 | 2016-08-25 | Integrated into one piece lightning protection net and preparation facilities thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205950263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181408A (en) * | 2016-08-25 | 2016-12-07 | 西安爱邦电磁技术有限责任公司 | A kind of one-body molded lightning protection net and preparation facilities thereof and preparation method |
-
2016
- 2016-08-25 CN CN201620944237.XU patent/CN205950263U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106181408A (en) * | 2016-08-25 | 2016-12-07 | 西安爱邦电磁技术有限责任公司 | A kind of one-body molded lightning protection net and preparation facilities thereof and preparation method |
| CN106181408B (en) * | 2016-08-25 | 2019-04-12 | 西安爱邦电磁技术有限责任公司 | A kind of integrated molding lightning protection net and its preparation facilities and preparation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106181408B (en) | A kind of integrated molding lightning protection net and its preparation facilities and preparation method | |
| CN104971975B (en) | It is a kind of to stretch the covering forming technology being combined with punching press | |
| CN205950263U (en) | Integrated into one piece lightning protection net and preparation facilities thereof | |
| CN102873182B (en) | Manufacturing device of mesh grid of lead-acid storage battery | |
| CN106607533A (en) | Forging method for Y-shaped blanks made of plastic materials | |
| CN204620715U (en) | A kind of system being applicable to production in enormous quantities multiple section shaped metal wire rod | |
| CN202316509U (en) | Roller for copper bar pointing machine | |
| CN204486494U (en) | Heavy in section Thin-walled Aluminum profile extrusion die | |
| CN109127785A (en) | Aluminium alloy extrusions trimmer | |
| CN104260171A (en) | Cutting processing device for bamboo chips | |
| CN112570792B (en) | Steel plate double-pre-stacking system for single-shear tangent line and stacking method thereof | |
| CN110228104B (en) | Rhombus lightning protection metal net forming equipment, preparation method and rhombus lightning protection metal net | |
| CN108098349A (en) | A kind of pressure gauge deformation tube automatic machining device | |
| CN204076439U (en) | A kind of bamboo chips shaping machine | |
| CN208162419U (en) | A kind of multi-station mold of threaded cap | |
| CN209867006U (en) | Brass wire spark-erosion wire cutting undergauge device | |
| CA3006038A1 (en) | Unitary expanded metal mesh having linear down-roll strands | |
| CN106981740A (en) | A kind of connector pin and its production technology | |
| CN106272697A (en) | A kind of reverse asynchronous system of processing | |
| CN202963191U (en) | Manufacturing equipment for net type plate grid of lead-acid storage battery | |
| CN202097271U (en) | Forming machine on production line for changing round pipes into square pipes | |
| CN205129985U (en) | Cotton section device of sticky tape bubble | |
| CN101764228B (en) | Continuous rolling net cutting molding equipment and method for manufacturing battery grid lead net | |
| CN202943099U (en) | Tool of wire forming device of lead alloy rod | |
| CN103817241B (en) | Stainless steel round bar without impression Bending Mould and its manufacture craft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |