Double-sided burr nickel-plated steel strip

Abstract

The utility model relates to the technical field of metal material processing, and discloses a double-sided burr nickel-plated steel strip which comprises a steel strip base body, sleeve layer mechanisms are arranged on the upper surface and the lower surface of the steel strip base body, the sleeve layer mechanisms are used for enhancing the conductivity of the steel strip base body, a female die hole mechanism is arranged in the steel strip base body, and a male die hole mechanism is arranged in the female die hole mechanism. The female die hole mechanism is used for improving the binding force between a plating layer and other materials, and the double-face burr mechanisms are arranged on the upper side and the lower side of the steel strip base body and used for connecting a plurality of steel strips or connecting the steel strips with other materials. The sleeve layer mechanism comprises two electronickelling layers, and the opposite sides of the two electronickelling layers are fixedly connected to the upper face and the lower face of the steel belt base body correspondingly. According to the utility model, the burr-shaped nickel-plated layers are formed on the two surfaces of the steel strip, so that the binding force between the plating layers and other materials is improved, the reliability of a product is enhanced, the performance of a high-power battery is improved, and the long-term reliability of the battery is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal material processing technical field especially relates to a double -sided burr nickel -plated steel strip. BACKGROUND

[0002] Nickel -plated steel strip because its excellent corrosion resistance, conductivity and welding performance, is widely used in electronic appliances, automobile manufacturing, aerospace and other fields. In recent years, with the rapid development of new energy automobile, energy storage system and other high -power battery technology, the performance of the battery internal conductive parts is higher.

[0003] The limitations of the current mainstream technical scheme include: single -sided nickel -plated steel strip cannot satisfy the double -sided conductive demand, and the interface bonding force problem is not solved;Double -sided smooth nickel -plated steel strip realizes double -sided coating, but the surface smoothness leads to weak mechanical occlusion ability with active substance, and the current distribution is uneven, limits the charge and discharge efficiency improvement. UTILITY MODEL CONTENT

[0004] In order to make up for the above insufficient, the utility model provides a double -sided burr nickel -plated steel strip, aims at improving the single -sided nickel -plated steel strip in prior art cannot satisfy the double -sided conductive demand, and the interface bonding force problem is not solved, the current distribution of double -sided smooth nickel -plated steel strip is uneven, limits the charge and discharge efficiency improvement problem.

[0005] In order to realize the above -mentioned purpose, the utility model adopts the following technical scheme: a double -sided burr nickel -plated steel strip, including steel strip base, the upper and lower two sides of the steel strip base are provided with the sleeve layer mechanism, the sleeve layer mechanism is used to enhance the conductivity of the steel strip base, the inside of the steel strip base is provided with the recess die hole mechanism, the recess die hole mechanism is used to improve the bonding force of coating and other materials, the upper and lower two sides of the steel strip base are provided with double -sided burr mechanism, and the double -sided burr mechanism is used to connect multiple steel strips or connect the steel strip with other materials.

[0006] As a further description of the above technical scheme:

[0007] The sleeve layer mechanism includes two electroplated nickel layers, and the opposite sides of the two electroplated nickel layers are fixedly connected to the upper and lower surfaces of the steel strip base.

[0008] As a further description of the above technical scheme:

[0009] The recess die hole mechanism includes a plurality of quadrilateral recess die holes, and the quadrilateral recess die holes are arranged in the interior of the steel strip base.

[0010] As a further description of the above technical scheme:

[0011] The double-face burr mechanism comprises a plurality of double-face quadrangular pyramid punches which are uniformly arranged on the upper and lower surfaces of the steel strip base.

[0012] As a further description of the above technical solution:

[0013] The electroplated nickel layer is composed of a plurality of nickel particles protruding from the surface of the steel strip base, and the nickel particles are in the shape of a cone, a pyramid or an irregular shape.

[0014] As a further description of the above technical solution:

[0015] The height of the nickel particles is 1-10 microns, and the bottom diameter of the nickel particles is 0.5-5 microns.

[0016] As a further description of the above technical solution:

[0017] The inside of the quadrangular concave die hole is provided with a burr.

[0018] As a further description of the above technical solution:

[0019] The surface of the electroplated nickel layer is provided with a three-dimensional burr.

[0020] The utility model has the following beneficial effects:

[0021] 1. In the utility model, low-carbon steel strips with a thickness of 0.08 mm are subjected to double-face punching processing, and then subjected to oil removal, rust removal and activation treatment to obtain clean steel strip bases; the pretreated steel strips are immersed in an electroplating solution, and a pulse electroplating mode is adopted to electroplate nickel layers on both surfaces of the steel strips; by forming burr-shaped nickel plating layers on both surfaces of the steel strips, the adhesion between the plating layer and other materials is improved, the reliability of the product is enhanced, the performance of high-power batteries is improved, and the long-term reliability of the batteries is ensured.

[0022] 2. In the utility model, the electroplated steel strips are subjected to water washing, drying and passivation treatment to obtain double-face burr nickel-plated steel strips; quadrangular concave die holes are formed in the steel strip bases and the electroplated nickel layers, and double-face quadrangular pyramid punches are arranged on the surfaces of the upper and lower electroplated nickel layers; by forming quadrangular pyramid punches on both surfaces of the steel strips, the connection performance of the steel strips is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A perspective view of a double-face burr nickel-plated steel strip is provided for the utility model;

[0024] Figure 2 An exploded view of a steel strip base of a double-face burr nickel-plated steel strip is provided for the utility model;

[0025] Figure 3The utility model provides a double four pyramid punch diagram of double face burr nickel plated steel strip.

[0026] Legend:

[0027] 1, steel strip matrix; 2, electroplated nickel layer; 3, square concave die hole; 4, double four pyramid punch. Specific embodiments

[0028] The technical scheme in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative efforts belong to the range of protection of the utility model.

[0029] Reference Figure 1 - Figure 2 An embodiment provided by the utility model: a double face burr nickel plated steel strip, including steel strip matrix 1, steel strip matrix 1 plays the role as the body material, the upper and lower two sides of steel strip matrix 1 are provided with sleeve layer mechanism, sleeve layer mechanism is used for enhancing the conductivity of steel strip matrix 1, the inside of steel strip matrix 1 is provided with concave die hole mechanism, concave die hole mechanism is used for improving the bonding force of plating layer and other materials, the upper and lower two sides of steel strip matrix 1 are provided with double face burr mechanism, double face burr mechanism is used for connecting multiple steel strips or connecting steel strip and other materials. Sleeve layer mechanism includes two electroplated nickel layers 2, electroplated nickel layer 2 plays the role of enhancing the conductivity of device, the opposite sides of two electroplated nickel layers 2 are fixedly connected on the upper and lower two sides of steel strip matrix 1, electroplated nickel layer 2 is composed of several nickel particles protruding on the surface of steel strip matrix 1, the shape of nickel particle is conical, pyramid or irregular shape, the height of nickel particle is 1-10 mu m, the bottom diameter of nickel particle is 0.5-5 mu m, the surface of electroplated nickel layer 2 is provided as three-dimensional burr.

[0030] Reference Figure 1 and Figure 3 Concave die hole mechanism includes several square concave die holes 3, square concave die hole 3 plays the role of connecting multiple steel strip matrix 1, square concave die hole 3 is opened in the inside of steel strip matrix 1. Double face burr mechanism includes several double four pyramid punches 4, double four pyramid punch 4 plays the role of connecting multiple steel strip matrix 1, double four pyramid punch 4 is evenly distributed and arranged on the upper and lower two sides of steel strip matrix 1. Square concave die hole 3 is provided as burr inside.

[0031] Working principle: after the low carbon steel strip with thickness of 0.08mm is double-sided punched, oil removal, rust removal and activation treatment are carried out, clean steel strip substrate 1 is obtained, the pretreated steel strip is immersed in electroplating solution, and pulse electroplating is adopted to electroplate nickel layer 2 on both sides of the steel strip.

[0032] The electroplated steel strip is washed with water, dried and passivated to obtain double-sided burr nickel-plated steel strip. Square concave die holes 3 are formed in the steel strip substrate 1 and the electroplated nickel layer 2, and double-sided four-pyramid-shaped punches 4 are arranged on the surfaces of the upper and lower electroplated nickel layers 2.

[0033] Finally, it should be noted that the above only describes preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A double-sided burred nickel-plated steel strip, comprising a steel strip substrate (1), characterized in that: The steel strip substrate (1) is provided with a sleeve mechanism on both the upper and lower sides. The sleeve mechanism is used to enhance the conductivity of the steel strip substrate (1). The interior of the steel strip substrate (1) is provided with a die hole mechanism. The die hole mechanism is used to improve the bonding force between the coating and other materials. The upper and lower sides of the steel strip substrate (1) are provided with a double-sided burr mechanism. The double-sided burr mechanism is used to connect multiple steel strips or connect the steel strip with other materials.

2. The double-sided burr-plated nickel steel strip according to claim 1, characterized in that: The jacket structure includes two electroplated nickel layers (2), and the opposite sides of the two electroplated nickel layers (2) are respectively fixedly connected to the upper and lower surfaces of the steel strip substrate (1).

3. The double-sided burred nickel-plated steel strip according to claim 1, characterized in that: The die hole mechanism includes several square die holes (3), which are formed inside the steel strip substrate (1).

4. The double-sided burr-plated nickel steel strip according to claim 1, characterized in that: The double-sided burr mechanism includes several double-sided quadrangular pyramid punches (4), which are evenly distributed on the upper and lower surfaces of the steel strip substrate (1).

5. The double-sided burred nickel-plated steel strip according to claim 2, characterized in that: The electroplated nickel layer (2) is composed of a number of nickel particles protruding from the surface of the steel strip substrate (1), and the nickel particles are in the shape of a cone, a pyramid, or an irregular shape.

6. The double-sided burr-plated nickel steel strip according to claim 5, characterized in that: The nickel particles have a height of 1-10 μm and a bottom diameter of 0.5-5 μm.

7. The double-sided burred nickel-plated steel strip according to claim 3, characterized in that: The interior of the square die hole (3) is burred.

8. The double-sided burred nickel-plated steel strip according to claim 2, characterized in that: The surface of the electroplated nickel layer (2) is set to a three-dimensional burr-like shape.

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