CN102629689A - Production method of lead-coated copper plate grid of lead acid storage battery and special combined mould - Google Patents
Production method of lead-coated copper plate grid of lead acid storage battery and special combined mould Download PDFInfo
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- CN102629689A CN102629689A CN2012101072169A CN201210107216A CN102629689A CN 102629689 A CN102629689 A CN 102629689A CN 2012101072169 A CN2012101072169 A CN 2012101072169A CN 201210107216 A CN201210107216 A CN 201210107216A CN 102629689 A CN102629689 A CN 102629689A
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Abstract
The invention discloses a production method of a lead-coated copper plate grid of a lead acid storage battery. The specific production method comprises the following steps of: closing and fixing a mould A and a mould C; heating to 120-140 DEG C; casting for the first time to form a lead layer with a groove; after cooling molten lead and the moulds, removing the mould C from the mould A; holding a copper wire serving as a copper plate grid in the groove of the copper layer; heating a mould B with the groove to 120-140 DEG C; closing and fixing the mould A and the mould B; and casting for the first time to construct the lead-coated copper plate grid of which the surface is completely covered by lead. The special combined mould of the production method is provided with the mould A and the mould B which are mutually corresponding to each other, and has the special points of being provided with the mould C which is matched with the mould A for use, wherein the inner surface of the mould C is provided with a convex edge which is matched with the groove on the mould A; the size of the cross section of the convex edge is less than that of the cross section of the groove on the mould A; and the diameter of the cross section of the convex edge is the same as that of the copper wire of the copper plate grid.
Description
Technical field
The invention belongs to storage battery production field, particularly a kind of Lead-acid Storage Battery copper-clad grid production method and special combination mould.
Background technology
At present, lead acid accumulator still occupies certain advantage in the market share of storage battery, in all departments of national economy, is bringing into play irreplaceable important function.The theoretical specific energy of lead acid accumulator is 170Wh/kg; But in fact most of lead acid accumulators can only discharge the energy of 30 ~ 50 Wh/kg; This causes by active material utilization is low on the one hand; Then be that quality by inert component causes on the other hand, like battery case, pole plate grid, barrier film, terminal etc.Particularly as the pole plate grid that support active material, the main performance of storage battery had considerable influence.In order to improve specific energy of lead acid battery, people explore always and seek a kind of new grid material and grid structure, in the hope of with minimum quality and minimum price, obtain maximum conductivity and the highest intensity.Lead plating copper coin grid have received people's common concern in recent years, and it is to make matrix with copper mesh, and it is plumbous that the surface coats one deck, to reduce grid resistance, improve power output, and the grid of this structure also is known as the copper coin grid.At present, on copper mesh, coat plumbous method and have three kinds: immersion plating, spraying plating and plating.Immersion plating is exactly with putting into plumbous liquation as the copper mesh of matrix, after the surface of copper mesh hangs up one deck lead, taking out.The problem that the immersion plating production technology exists is, the lead layer that matrix surface hangs up is thinner, and hangs the surface irregularity of plumbous back grid, and practical effect is relatively poor.Spraying plating is exactly the surface that lead is sprayed on matrix, and the problem that this processing method exists is, grid lead layer uneven distribution is even, and the compactness of lead layer is also relatively poor, in the process of using, comes off easily.Plating is exactly to adopt common electric plating method to plate one deck lead on the surface of matrix.The manufacturing cost of this method is very high; Because the grid surface coats plumbous thickness and generally should be 100 μ m～300 μ m; The lead of on matrix, electroplating 100 μ m～300 μ m then need spend long time, thereby does not possess the value that heavy industrialization is implemented.Though it is plumbous that said method can coat one deck on the surface of matrix; And produce the copper coin grid that the surface is coated with lead layer; But there is not a kind of method to produce high-quality copper coin grid with less cost; And be suitable for large-scale industrial production, therefore, the development of copper coin grid has become an important subject in the lead acid accumulator production field.
In order to address the above problem; I have developed a kind of method and particular manufacturing craft that adopts casting technique to produce copper sheet grating of lead acid battery; And applied for that Chinese invention patent, the patent No. are " ZL200410100486.2 ", name is called " Lead-acid battery copper plate grid production method and special molds ".This patent adopts the matrix of copper mesh as the copper coin grid, and copper mesh is produced with modes such as line cutting or punching presses, and copper mesh is located with location lead ring and pilot pin in mould, is positioned at the centre of mould to guarantee copper mesh, and makes the lead layer thin and thick on copper mesh surface, casting back even.Though the compactness of the copper coin grid lead layer that this method is produced is good, thickness is unrestricted, and product percent of pass is high, and production cost is still higher, and is difficult to realize large-scale industrial production.Its main cause is: 1, copper mesh adopts the copper sheet material to make, the utilance less than 10 of material, and the raw material above 90 percent become copper scrap, but also need come moulding through line cutting or punching press, and production cost is higher relatively.2, copper mesh will be installed several location lead rings before putting into mould; Because the thickness of copper mesh is extremely thin,, just need to install a lot of location lead rings so will make copper mesh remain on the centre of mould; The installing and locating lead ring then will expend a lot of man-hours, and production efficiency is lower.3, because the thickness of copper mesh is extremely thin; Much pilot pin is located copper mesh so also need on mould, install, and the diameter of pilot pin is very little, the difficulty of on mould, holing is just bigger; Drill bit also fractures easily; The height of needle point also must be consistent, and the difficulty of assembling is bigger, thereby the making of mould also needs to accomplish a lot of man-hours.4, owing in the mould a lot of pilot pins are arranged, these pilot pins all are embedded in the lead layer after casting, though needle point is taper, molding is also relatively required great effort, and dynamics is grasped the bad lead layer that also damages easily.5, owing in the mould a lot of pilot pins are arranged, so can on the lead layer of copper coin grid, stay a lot of pin holes after the casting, these pin holes also need closure, just can become copper coin grid finished product.The existence of the problems referred to above has caused this patent to be difficult to realize large-scale industrial production.
Summary of the invention
The technical problem that the present invention will solve is; Overcome the problem that the production cost that has method for producing copper sheet grating of lead acid battery and mould existence now is high, be difficult to large-scale industrial production, a kind of production cost is low, be suitable for large-scale industrial production Lead-acid Storage Battery copper-clad grid production method and special combination mould are provided.
The present invention adopts the method production Lead-acid Storage Battery copper-clad grid of casting, and its concrete production method is:
The mould A that 1, will have groove closes up fixing with the mould C that has fin;
2, will close up fixing mold heated to 120 ℃～140 ℃;
3, plumbous liquation is cast among mould A and the mould C, carries out first time casting, utilize the formation of the gap between the fin among mould A further groove and the mould C to have the lead layer of groove;
4, treat plumbous liquation and mold cools down after, open mould, mould C is taken off from mould A, the lead layer that has groove then is retained in the groove of mould A, removes the casting gate part of lead layer;
5, in the groove of lead layer, pack into as the copper wire of copper coin grid;
The mould B that 6, will have a groove is heated to 120 ℃～140 ℃, then, closes up mould A and mould B fixing;
7, plumbous liquation is cast among mould A and the mould B, carries out the casting second time, plumbous liquation is full of the gap between mould B further groove and the copper wire, copper wire is wrapped up fully, constitute the sheath copper coin grid that the surface is covered by lead fully;
8, treat plumbous liquation and mold cools down after, open mould, take out and to have cast plumbous sheath copper coin grid blank, the air flue burr and the casting gate at removing sheath copper coin grid blank edge promptly become sheath copper coin grid finished product.
A kind of special combination mould of implementing above-mentioned Lead-acid Storage Battery copper-clad grid production method; It has two each other corresponding moulds, i.e. mould A and mould B have on the surface of mould A and mould B inboard that shape is identical, cross sectional dimensions is greater than the groove of copper coin grid copper wire; This groove is some transverse concave grooves and some longitudinal flutings; Its special character is that the present invention also has a mould C who matches and use with mould A, on the surface of mould C inboard, the fin that matches with mould A upper groove is arranged; The cross sectional dimensions of this fin is less than the cross sectional dimensions of mould A upper groove, and the cross-sectional diameter of this fin is identical with the diameter of copper coin grid copper wire.
Fin on the described mould C inner surface is a horizontal fin and some vertical fins, and laterally fin is positioned at the upper end of vertical fin.
The invention has the advantages that:
1, adopts the matrix of copper wire, improved the utilance of material greatly, reduced the use amount of copper as the copper coin grid; Thereby reduced production cost significantly, improved economic benefit, and selection is easy; Copper wire need not be processed, and shears the back and directly uses, and has simplified production technology.
2, do not need the installing and locating pin on the mould, simplified the production of mould, do not need the installing and locating lead ring on the copper wire; Need not put down pin hole after the molding yet, reduce production process, fall at the end difficulty of producing; Improve production efficiency, thereby realized the large-scale industrial production of copper coin grid.
3, through the secondary casting, copper wire is cast in the center of lead layer accurately, guaranteed that the lead layer thin and thick is even, do not leak the copper phenomenon, and the thickness of lead layer is unrestricted, the compactness of lead layer is good, and the qualification rate of product is high, thereby produces high-quality copper coin grid.
Description of drawings
Fig. 1 is the structural representation of mould A of the present invention;
Fig. 2 is A-A cutaway view of Fig. 1;
Fig. 3 is B-B cutaway view of Fig. 1;
Fig. 4 is the structural representation of mould B of the present invention;
Fig. 5 is C-C cutaway view of Fig. 4;
Fig. 6 is the structural representation of mould C of the present invention;
Fig. 7 is the left view of Fig. 6;
Fig. 8 is D-D cutaway view of Fig. 6;
Fig. 9 is the cross section view of mould A of the present invention and mould C;
Figure 10 is the cross section view of mould A of the present invention and mould B;
Figure 11 is the E portion enlarged drawing of Fig. 9;
Figure 12 is the F portion enlarged drawing of Figure 10.
Embodiment
The present invention adopts the method production Lead-acid Storage Battery copper-clad grid of casting, and its concrete production method is:
The mould A that 1, will have groove closes up fixing with the mould C that has fin;
2, will close up fixing mold heated to 120 ℃～140 ℃, when practical operation, if adopt the method for common casting; The temperature of mould should both guarantee that lead had good flowability in mould near plumbous melting temperature, and it is oversize to be unlikely casting back mould temperature fall time again; The present invention adopts the method for die casting to cast; Mold heated to 120 ℃～140 ℃ can be cast, and during practical operation, the heating-up temperature of mould A and mould C can be according to the size of mould; And it is definite in 120 ℃～140 ℃ scopes with the gap length between the fin of the groove of mould A and mould C; If mould is big and the fin of the groove of mould A and mould C between the gap little, the heating-up temperature of mould A and mould C should be in temperature range the capping value, otherwise then should take off limit value;
3, plumbous liquation is cast among mould A and the mould C, carries out first time casting, utilize the formation of the gap between the fin among mould A further groove and the mould C to have the lead layer of groove, this lead layer promptly is a side of sheath copper coin grid;
4, treat plumbous liquation and mold cools down after, open mould, mould C is taken off from mould A, the lead layer that has groove then is retained in the groove of mould A, removes the casting gate part of lead layer;
5, in the groove of lead layer, pack into as the copper wire of copper coin grid, copper wire will be installed smooth, bending can not be arranged, upwarp;
The mould B that 6, will have a groove is heated to 120 ℃～140 ℃, then, closes up mould A and mould B fixing; During practical operation; The heating-up temperature of mould B can be according to the size of mould, and confirms in 120 ℃～140 ℃ scopes with the gap length between the groove of copper wire in the mould and mould B, if the gap between the groove of mould copper wire and mould B greatly and in the mould is little; The heating-up temperature of mould B should be in temperature range the capping value, otherwise then should take off limit value;
7, plumbous liquation is cast among mould A and the mould B; Carry out the casting second time, plumbous liquation is full of the gap between mould B further groove and the copper wire, form another side of sheath copper coin grid; Thereby copper wire is wrapped up fully, constitute the sheath copper coin grid that the surface is covered by lead fully;
8, treat plumbous liquation and mold cools down after, open mould, take out the two sides and all cast plumbous sheath copper coin grid blank, the air flue burr and the casting gate at removing sheath copper coin grid blank edge promptly become sheath copper coin grid finished product.
Implement special combination mould such as Fig. 1 of above-mentioned Lead-acid Storage Battery copper-clad grid production method-shown in Figure 12; It has two corresponding each other moulds; Be mould A and mould B, have on the inboard surface of mould A and mould B that shape is identical, cross sectional dimensions is greater than the groove of copper coin grid copper wire, this groove is some transverse concave grooves 4 and some longitudinal flutings 3; Intersect in length and breadth between transverse concave groove 4 and the longitudinal fluting 3; Transverse concave groove 4 is semicircle with the shape of cross section of longitudinal fluting 3, also can be rectangle or other shapes, can confirm as required; A transverse concave groove 2 is arranged in the top of mould A; The degree of depth of transverse concave groove 2 is greater than the transverse concave groove 4 of bottom; Because not only will wrap up the copper wire 12 of vertical setting here, also to wrap up the copper wire 12 of horizontally set, therefore; The degree of depth of transverse concave groove 2 can be confirmed according to the diameter of copper wire 12; And the degree of depth of all transverse concave grooves 4 of mould B is all identical, and it is the matrix of the copper wire of circle as the copper coin grid that the present invention adopts cross section, also can adopt the matrix of the copper wire of other shape of cross sections as the copper coin grid during practical application; Top at mould A and mould B inner surface also has two suspension member grooves 5, and suspension member groove 5 is connected with transverse concave groove 4 and longitudinal fluting 3; Top at mould A and mould B inner surface also has a casting gate 1, and casting gate 1 is connected with transverse concave groove 2 and the mould B transverse concave groove 4 topmost of mould A, and corresponding with two longitudinal flutings 3 of mould A and mould B; Also have a lug groove 6 on the top of mould A and mould B, lug groove 6 is connected with transverse concave groove 2 and the mould B transverse concave groove 4 topmost of mould A, and corresponding with a longitudinal fluting 3, so that when casting, cast out lug; The present invention also has a mould C who matches and use with mould A; Have on the inboard surface of mould C some with mould A on vertical fin 7 of matching of longitudinal fluting 3, vertically the shape of cross section of fin 7 be semicircle, the cross-sectional diameter of vertical fin 7 is definite according to the diameter of copper wire 12; Vertically the diameter of fin 7 is identical with the diameter of copper wire 12; Perhaps be slightly less than 0.05～0.1 millimeter of the diameter of copper wire 12,, avoid copper wire 12 to upwarp so that the lead layer groove that the casting back forms can clamp copper wire 12; Vertical fin 7 on the mould C lacks two than the longitudinal fluting on the mould A 3; So that casting respectively forms a complete plumbous frame 10 in the both sides of sheath copper coin grid after accomplishing, frame 10 is formed by twice casting, and casting for the first time only forms frame 10 half; Like Fig. 9 and shown in Figure 11; After the casting, form complete frame 10, for the second time like Figure 10 and shown in Figure 12; Also have on the inboard surface of mould C one with mould A on the horizontal fin 8 that matches of transverse concave groove 2; Laterally the top of the cross section of fin 8 is semicircle; The bottom be a rectangle, and the radius at horizontal fin 8 tops and the width of bottom are identical with the diameter of copper wire 12, perhaps is slightly less than 0.05～0.1 millimeter of the diameter of copper wire 12; So that the lead layer groove that the casting back forms can clamp copper wire 12, avoid copper wire 12 to upwarp; Laterally the height of fin 8 will be higher than vertical fin 7; The size that exceeds is confirmed by the diameter of copper wire 12; Because should place the copper wire 12 of horizontally set in the lead layer groove that the casting back forms for the first time herein; Also will place the copper wire 12 of vertical setting, the copper wire 12 of horizontally set will overlap with the copper wire 12 that vertically is provided with each other, contacts well to guarantee both; Laterally fin 8 is positioned at the upper end of vertical fin 7; Laterally 8 of fins are provided with one; The copper wire 12 of a horizontally set promptly only is set in sheath copper coin grid; To save copper product, the copper wire 12 of a horizontally set can compile the electric current on some the copper wires 12 that vertically are provided with, and what cast out in other transverse concave grooves 4 among mould A and the mould B all is the full lead block body that does not contain copper wire 12; The cross sectional dimensions of described vertical fin 7 is gone up the cross sectional dimensions of longitudinal fluting 3 less than mould A; Laterally the cross sectional dimensions of fin 8 is less than the cross sectional dimensions of the last transverse concave groove 2 of mould A, and both differences are the thickness of lead layer 11, can confirm according to actual needs; Lead layer 11 forms through second casting; Casting for the first time forms half lead layer 11 that has groove, and like Fig. 9 and shown in Figure 11, casting for the second time forms complete lead layer 11; Copper wire 12 is wrapped up fully, like Figure 10 and shown in Figure 12; On the inboard surface of mould C, also have a lug fin 9, lug fin 9 is positioned at the top of horizontal fin 8, and corresponding with a vertical fin 7.
Claims (3)
1. a Lead-acid Storage Battery copper-clad grid production method is characterized in that, it adopts the method production Lead-acid Storage Battery copper-clad grid of casting, and its concrete production method is:
The mould A that (1) will have groove closes up fixing with the mould C that has fin;
(2) will close up fixing mold heated to 120 ℃～140 ℃;
(3) plumbous liquation is cast among mould A and the mould C, carries out first time casting, utilize the formation of the gap between the fin among mould A further groove and the mould C to have the lead layer of groove;
(4) treat plumbous liquation and mold cools down after, open mould, mould C is taken off from mould A, the lead layer that has groove then is retained in the groove of mould A, removes the casting gate part of lead layer;
(5) in the groove of lead layer, pack into as the copper wire of copper coin grid;
The mould B that (6) will have a groove is heated to 120 ℃～140 ℃, then, closes up mould A and mould B fixing;
(7) plumbous liquation is cast among mould A and the mould B, carries out the casting second time, plumbous liquation is full of the gap between mould B further groove and the copper wire, copper wire is wrapped up fully, constitute the sheath copper coin grid that the surface is covered by lead fully;
(8) treat plumbous liquation and mold cools down after, open mould, take out and to have cast plumbous sheath copper coin grid blank, the air flue burr and the casting gate at removing sheath copper coin grid blank edge promptly become sheath copper coin grid finished product.
2. implement the special combination mould of Lead-acid Storage Battery copper-clad grid production method according to claim 1 for one kind; It has two each other corresponding moulds, i.e. mould A and mould B have on the surface of mould A and mould B inboard that shape is identical, cross sectional dimensions is greater than the groove of copper coin grid copper wire; This groove is some transverse concave grooves and some longitudinal flutings; It is characterized in that the present invention also has a mould C who matches and use with mould A, on the surface of mould C inboard, the fin that matches with mould A upper groove is arranged; The cross sectional dimensions of this fin is less than the cross sectional dimensions of mould A upper groove, and the cross-sectional diameter of this fin is identical with the diameter of copper coin grid copper wire.
3. special combination mould according to claim 2 is characterized in that, the fin on the described mould C inner surface is a horizontal fin and some vertical fins, and laterally fin is positioned at the upper end of vertical fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210107216.9A CN102629689B (en) | 2012-04-13 | 2012-04-13 | Production method of lead-coated copper plate grid of lead acid storage battery and special combined mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210107216.9A CN102629689B (en) | 2012-04-13 | 2012-04-13 | Production method of lead-coated copper plate grid of lead acid storage battery and special combined mould |
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| CN102629689A true CN102629689A (en) | 2012-08-08 |
| CN102629689B CN102629689B (en) | 2014-05-28 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10466236B2 (en) | 2013-03-29 | 2019-11-05 | Nima Labs, Inc. | System and method for detecting target substances |
| CN110666138A (en) * | 2019-10-28 | 2020-01-10 | 吉林大学 | High-wear-resistance piston preparation device and method |
| US10533995B2 (en) | 2013-03-29 | 2020-01-14 | Nima Labs, Inc. | System and method for detection of target substances |
| US10837959B2 (en) | 2013-03-29 | 2020-11-17 | Nima Acquisition, Llc | System and method for detection of target substances |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8502507B1 (en) | 2012-03-29 | 2013-08-06 | Accio Energy, Inc. | Electro-hydrodynamic system |
| US10249035B2 (en) | 2013-03-29 | 2019-04-02 | Nima Labs, Inc. | System and method for detecting target substances |
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| JPS60150556A (en) * | 1984-01-13 | 1985-08-08 | Japan Storage Battery Co Ltd | Grid for lead storage battery |
| JPS60253160A (en) * | 1984-05-29 | 1985-12-13 | Japan Storage Battery Co Ltd | Manufacture of negative plate for lead storage battery utilizing copper grating |
| CN1797818A (en) * | 2004-12-25 | 2006-07-05 | 苗维新 | Method for producing copper sheet grating of lead acid battery, and dedicated die |
| CN102208650A (en) * | 2011-05-11 | 2011-10-05 | 关凯 | Lead-acid battery grid and machining die thereof |
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2012
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Patent Citations (4)
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|---|---|---|---|---|
| JPS60150556A (en) * | 1984-01-13 | 1985-08-08 | Japan Storage Battery Co Ltd | Grid for lead storage battery |
| JPS60253160A (en) * | 1984-05-29 | 1985-12-13 | Japan Storage Battery Co Ltd | Manufacture of negative plate for lead storage battery utilizing copper grating |
| CN1797818A (en) * | 2004-12-25 | 2006-07-05 | 苗维新 | Method for producing copper sheet grating of lead acid battery, and dedicated die |
| CN102208650A (en) * | 2011-05-11 | 2011-10-05 | 关凯 | Lead-acid battery grid and machining die thereof |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10466236B2 (en) | 2013-03-29 | 2019-11-05 | Nima Labs, Inc. | System and method for detecting target substances |
| US10533995B2 (en) | 2013-03-29 | 2020-01-14 | Nima Labs, Inc. | System and method for detection of target substances |
| US10837959B2 (en) | 2013-03-29 | 2020-11-17 | Nima Acquisition, Llc | System and method for detection of target substances |
| US11422130B2 (en) | 2013-03-29 | 2022-08-23 | Nima Acquisition, Llc | System and method for detecting target substances |
| CN110666138A (en) * | 2019-10-28 | 2020-01-10 | 吉林大学 | High-wear-resistance piston preparation device and method |
| CN110666138B (en) * | 2019-10-28 | 2023-10-20 | 吉林大学 | High-wear-resistance piston preparation device and method |
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| CN102629689B (en) | 2014-05-28 |
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