• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:

    公开号:NL1040826A
    申请号:NL1040826
    申请日:2014-05-30
    公开日:2014-12-02
    发明作者:Yingming Chen；Hui Zhang
    申请人:Jiangsu Cemt Energy Equipment；
    IPC主号:
    专利说明:

    A Manufacture Method for Lead-Acid Storage Battery Grid Technical Field
    The present invention relates to the technical field of manufacturing lead-acid storage battery grid.
    Background Art
    In lead-acid storage battery, active substance of current-generating reaction has to be fixed on a grid-shaped carrier supported by lead-based alloy. This kind of grid-shaped carrier is called grid. The grid itself does not produce energy, and an ideal battery grid should have multiple characteristics, such as reasonable structure, light weight, corrosion resistance, low resistance, easy to bind active substances etc.
    The commonly used traditional grid is the gravity casting grid, which has the advantages of light weight, strong binding of active material, simple and mature production technology, but the production process has strict demand on environmental protection equipment, and has low efficiency, a big loss of material, and poor corrosion resistance.
    During the last decade, expanded grid, punching plate gate and continuous casting and rolling grid have been popularized, sharing the common advantages of continuous processing, high efficiency, low pollution; rolling-processed grid, refined grain, improved corrosion resistance. However, they also share the same shortcomings: the thichness throughout the grid is unique, compared with gravity casting grid, if the grid total thickness and rib width is consistent, the weight increases by more than 30%, due to the considerations of cost and battery capacity, the thickness of this kind of grid are thinner by more than 30% (punching plate gate being thinner by more than 50%), the consequences are decreased grid strength, weakened support of grid ribs to the active substance, declined lifetime of deep cycle. Therefore, the application range of these varieties of grids is only limited to start battery with large current and shallow cycle, and is not suitable for the applications of power battery and stationary battery. For this reason, the traditional gravity casting grid still overwhelmingly predominates in the market.
    Summary of the Invention
    The purpose of this invention is to provide a manufacture method for lead-acid storage battery grid. This manufacture method is to, through extrusion shaping, improve the strength and the processing efficiency of punching plate gate, reduce the consumption of materials, possess the advantages of continuous grid of gravity casting and punching plate gate etc., avoid the shortcomings of these grids, and thus expand the application range of the continuous grid.
    A manufacture method for lead-acid storage battery grid, comprising the follow steps: Step one: transverse rib extrusion, by using up-and-down movement and left-and-right movement of transverse rib extrusion upper and bottom molds, forming cavity at the time of closing the transverse rib extrusion upper and bottom molds, when the grid reaching extrusion site: (11) raising the transverse rib extrusion bottom mold, descending the transverse rib extrusion upper mold; (12) relatively left-and-right moving the transverse rib extrusion upper and bottom molds, extruding the transverse rib, deforming lead alloy by force, and filling the cavity formed by the upper and bottom molds with the lead alloy; (13) separating the transverse rib extrusion upper and bottom molds, descending the transverse rib extrusion bottom mold, raising the transverse rib extrusion upper mold; (14) moving the grid forward along a grid width pace; (15) repeating the above-mentioned process of (11) to (14), realizing continuous extrusion;
    Step two: longitudinal rib extrusion, by using up-and-down movement and front-and-back movement of longitudinal rib extrusion upper and bottom molds, forming cavity at the time of closing the transverse rib extrusion upper and bottom molds, when the grid reaching extrusion site: (21) raising the longitudinal rib extrusion bottom mold, descending the longitudinal rib extrusion upper mold; (22) relatively front-and-back moving the longitudinal rib extrusion upper and bottom molds, extruding the longitudinal rib, deforming the lead alloy by force, and filling the cavity formed by the longitudinal rib extrusion upper and bottom molds with the lead alloy; (23) separating the longitudinal rib extrusion upper and bottom molds, descending the longitudinal rib extrusion bottom mold 9, raising the longitudinal rib extrusion upper mold 8; (24) moving the grid forward along a grid width pace; (25) repeating the above-mentioned process of (21) to (24), realizing continuous extrusion;
    Step three: extrusion trimming, up-and-down moving upper and bottom trimming molds, removing extrusion projections and burrs on the transverse rib, longitudinal rib, frame and lug, and extruding V-shape notch at the boundaries of two grids.
    The present invention adopts the above-mentioned technical solution, and compared with the prior art, it has the following advantages: 1. Compared with the gravity casting grid, the grid of the present invention is solid extrusion formation after punching, compared with the liquid casting formation of gravity casting grid, it has smaller grain, strong corrosion resistance, and realizes the continuous production and high efficiency; in addition, the mechanical strength of extrusion process is much better than that of casting process, under the same intensity, the punching extrusion grid is more than 10% lighter than that of gravity casting grid.
    2. Compared with the expanded grid, punching plate gate and continuous casting and rolling grid, the present invention possesses a more reasonable cross section of ribs, the same weight of polar plate, decreased thickness of paste which exceeds the grid at the time of plastering, increased contact surface, more firmly binding to the active substances, and: (1) Compared with the pure punching plate gate, the grid of the present invention is shaped through extrusion, greatly improves the mechanical strength, under the same intensity, the required materials of the grid of the present invention is dramatically reduced; the strength of the grid of the present invention is mainly obtained by extrusion shaping, and under the same weight of the grid, it has reduced thickness, widened rib, and thus the ratio of width to thickness increases, reducing punching difficulty and improving the mold lifetime and punching efficiency.
    (2) Compared with continuous casting and rolling grid, in the case of the same weight, the cross section of the grid of the present invention is more reasonable, the strength is higher, and moreover, the grid of the present invention is solid forming, without the problem of demoulding, while the continuous casting grid is liquid forming, it needs to strictly control the molding temperature, and also needs to pre-coat film agent, the process is complex, and the finished product ratio is relatively low.
    3. The punching extrusion grid of the present invention, through extrusion shaping, improves the strength and the processing efficiency of punching grid, reduces the consumption of materials, possesses the advantages of continuous grid of gravity casting and punching grid etc., avoids the shortcomings of these grids, expands the application range of continuous grid, and has better application prospect.
    Description of the drawings
    Figure 1 is a structural diagram of the grid of the present invention before processing. Figure 2 is a structural diagram of the transverse rib extrusion of the present invention.
    Figure 3 is a cross section schematic diagram of the figure 2.
    Figure 4 is a structural diagram of the longitudinal rib extrusion of the present invention.
    Figure 5 is a structural diagram of extrusion trimming of the present invention;
    Figure 6 is a plane figure of the grid of the present invention after trimming extrusion.
    In the figures: 1, transverse rib; 2, lug; 3, upper frame; 4, bottom frame; 5, longitudinal rib; 6, transverse rib extrusion upper mold; 7, transverse rib extrusion bottom mold; 8, longitudinal rib extrusion upper mold; 9, longitudinal rib extrusion bottom mold; 10, extrusion grid; 11, upper trimming mold; 12, bottom trimming mold.
    Specific embodiments A manufacture method for lead-acid storage battery grid, comprising the follow steps:
    As shown in figures 2 and 3, the first step: transverse bar extrusion, by using up-and-down movement and left-and-right movement of transverse rib extrusion upper and bottom molds 6,7, forming cavity at the time of closing the transverse rib extrusion upper and bottom molds, when the grid 10 reaching the extrusion site: (11) raising the transverse rib extrusion bottom mold 7, descending the transverse rib extrusion upper mold 6; (12) relatively left-and-right moving the transverse rib extrusion upper and bottom molds, extruding the transverse rib 1, deforming lead alloy by force, and filling the cavity formed by the upper and bottom molds with the lead alloy; (13) separating the transverse rib extrusion upper and bottom molds, descending the transverse rib extrusion bottom mold 7, raising the transverse rib extrusion upper mold 6; (14) moving the grid forward along a grid width pace; (15) repeating the above-mentioned process of (11) to (14), realizing continuous extrusion;
    As shown in figure 4, the second step: longitudinal rib extrusion, by using up-and-down movement and front-and-back movement of longitudinal rib extrusion upper and bottom molds 8, 9, forming cavity at the time of closing the transverse rib extrusion upper and bottom molds 8,9, when the grid 10 reaching the extrusion site: (21) raising the longitudinal rib extrusion bottom mold 9, descending the longitudinal rib extrusion upper mold 8; (22) relatively front-and-back moving the longitudinal rib extrusion upper and bottom molds, extruding the longitudinal rib 5, deforming the lead alloy by force, and filling the cavity formed by the longitudinal rib extrusion upper and bottom molds with the lead alloy; (23) separating the longitudinal rib extrusion upper and bottom molds, descending the longitudinal rib extrusion bottom mold 9, raising the longitudinal rib extrusion upper mold 8; (24) moving the grid forward along a grid width pace; (25) repeating the above-mentioned process of (21) to (24), realizing continuous extrusion;
    As shown in figure 5, the third step: extrusion trimming, up-and-down moving the upper and bottom trimming molds 11, 12, removing extrusion projections and burrs on the transverse rib 1, longitudinal rib 5, upper frame 3, bottom frame 4 and lug 2, and extruding V-shape notch at the boundaries of two grids. It is convenient to cut two grids.
    As shown in figures 2 and 3, the cross section of cavity formed at the time of closing the transverse rib extrusion upper and bottom molds is prismatic, hexagon or oval, the sectional area of cavity is equal to or a little larger than the sectional area of transverse rib of grid, the thickness of cavity is 1.2-3 times of the thickness of transverse rib.
    As shown in Figure 2, the transverse rib extrusion upper mold and the transverse rib extrusion bottom mold of the present invention are in staggered arrangement, that is, including the upper and bottom frames, any two adjacent transverse ribs do not extrude within the same grid, the transverse rib extrusion upper and bottom molds are divided to odd number position of transverse rib extrusion region and even number position of transverse rib extrusion region, at the same grid, after two extrusions, all of the transverse ribs realize extrusion deformation.
    As shown in figure 4, the cross section of cavity formed at the time of closing the longitudinal rib extrusion upper and bottom molds of the present invention is prismatic, hexagon or oval, the sectional area of cavity is equal to or a little larger than the sectional area of longitudinal rib of grid, the thickness of cavity is 1.2-3 times of the thickness of longitudinal rib.
    The longitudinal rib extrusion upper mold and the longitudinal rib extrusion bottom mold of the present invention are in staggered arrangement, that is, including the upper and bottom frames, any two adjacent longitudinal ribs do not extrude within the same grid, the longitudinal rib extrusion upper and bottom molds are divided to odd number position of longitudinal rib extrusion region and even number position of longitudinal rib extrusion region, at the same grid, after two extrusions, all of the longitudinal ribs realize extrusion deformation.
    As shown in figure 6, compared the grid of the present invention after trimming extrusion with punching plate gate, the thickness of the frames around the extrusion grid and the thickness of the internal ribs are increased, cross-section shape is converted from rectangular to hexagonal, and conducting area remains the same.
    权利要求:
    Claims (5)
    [1]
    Production method for lead-acid battery grating, comprising: Step one: transverse rib extrusion, by means of up-and-down movement and left-and-right movement of the upper and lower casts of the transverse rib extrusion whereby a cavity is formed when the upper and lower molds of the transverse rib extrusion close when the grid reaches the extrusion site: (11) raising the lower mold of the transverse rib extrusion, lowering of the upper mold of the transverse rib extrusion; (12) relative left-and-right movement of the upper and lower casts of the transverse rib extrusion, extruding the transverse rib, force-forming lead alloy, and filling the cavity formed by the upper and lower casts with the lead alloy ; (13) separating the upper and lower molds from the transverse rib extrusion, lowering the lower mold from the transverse rib extrusion, raising the upper mold from the transverse rib extrusion; (14) moving the grid forward along a path the width of the grid; (15) repeating the above process from (11) to (14), thereby obtaining continuous extrusion; Step two: longitudinal rib extrusion, by means of up-and-down movement and forwards and backwards movement of the upper and lower molds of the longitudinal rib extrusion, whereby a cavity is formed at the moment that the upper and lower close casting molds of the transverse rib extrusion, when the grid reaches the extrusion site: (21) raising the lower mold of the longitudinal rib extrusion, lowering the upper mold of the longitudinal rib extrusion; (22) relatively forwards and backwards moving the upper and lower casts of the longitudinal rib extrusion, extruding the longitudinal rib, force deforming lead alloy, and filling the cavity formed by the upper and lower casts of the longitudinal rib rib extrusion with the lead alloy; (23) separating the upper and lower molds from the longitudinal rib extrusion, lowering the lower mold from the longitudinal rib extrusion, raising the upper mold from the longitudinal rib extrusion; (24) moving the grid forward along a path the width of the grid; (25) repeating the aforementioned process from (21) to (24), thereby obtaining continuous extrusion; Step three: extrusion trimming, moving the upper and lower trim shapes up and down, removing extrusion projections and burrs on the transverse rib, longitudinal rib, frame and handle, and extruding a V-shaped notch on the boundaries of two schedules.
    [2]
    2. Production method for lead-acid battery grid as described in claim 1, wherein the cross-section of the cavity formed at the time of closure of the upper and lower casts of the transverse rib extrusion is prismatic, hexagonal or oval, the sectional area of the cavity is equal to or slightly larger than the sectional area of the transverse rib of the lattice, the thickness of the cavity is 1.2-3 times the thickness of the transverse rib.
    [3]
    The production method for lead-acid battery grid as described in claim 1, wherein the upper cast of the transverse rib extrusion and the lower cast of the transverse rib extrusion are in a zigzag arrangement, that is to say including the upper and lower frames do not extrude any two adjacent transverse ribs into the same grid, the upper and lower casts of the transverse rib extrusion are subdivided into unpaired number position of the transversal rib extrusion area and even number position of the transversal rib area extrusion, on the same grid, after two extrusions, realize all transverse ribs extrusion distortion.
    [4]
    Production method for lead-acid battery grid as described in claim 1, wherein the cross section of the cavity formed at the time of closure of the upper and lower casts of the longitudinal rib extrusion is prismatic, hexagonal or oval, the sectional the area of the cavity is equal to or slightly larger than the sectional area of the longitudinal rib of the lattice, the thickness of the cavity is 1.2-3 times the thickness of the longitudinal rib.
    [5]
    The production method for lead-acid battery grid as described in claim 1, wherein the upper casting mold of the longitudinal rib extrusion and the lower casting mold of the longitudinal rib extrusion are in a zigzag arrangement, i.e. including the upper and lower frames do not extrude any two adjacent longitudinal ribs in the same lattice, the upper and lower casts of the longitudinal rib extrusion are subdivided into unpaired number position of the region of the longitudinal rib extrusion and even number position of the region of the longitudinal rib -extrusion, on the same grid, after two extrusions, realize all longitudinal ribs extrusion deformation.
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    同族专利:
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    引用文献:
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    法律状态:
    2018-01-03| MM| Lapsed because of non-payment of the annual fee|Effective date: 20170601 |
    优先权:
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    CN201310208829|2013-05-30|
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