A process for the production of a metal composite strip for fusing material

Abstract

The application provides a metal composite strip production process for a fuse material, which comprises the following steps: first slotting, taking a first material as a base material, along the thickness direction of the first material, the first material having opposite first and second sides, and a first groove being formed on the first side; first compounding, placing a second material in the first groove, and connecting the second material with the first material; second slotting, turning over the first material, along the thickness direction of the first material, and forming a second groove on the second side at a position opposite to the first groove until the second material in the first groove is exposed; and second compounding, placing the second material in the second groove, connecting the second material with the first material, and connecting the two second materials in the second groove and the first groove. The metal composite strip production process for the fuse material can improve the connecting strength of the connecting part of the metal composite strip and ensure the safety of electricity use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of composite metal material production, in particular to a metal composite strip production process for fuse material. BACKGROUND

[0002] Fuse material needs to have good fusing performance. Currently, silver material and copper material are usually combined into a metal composite strip as fuse material to take into account production cost and fusing performance. The problem is that the strength of the combined connection between the silver material and the copper material is low, and the metal composite strip combined in this way is prone to cracking or separation at the connection, resulting in failure of the metal composite strip and difficulty in ensuring the safety of electricity use. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application proposes a metal composite strip production process for fuse material, which can improve the connection strength of the connection of the metal composite strip and ensure the safety of electricity use.

[0004] The metal composite strip production process for fuse material according to an embodiment of the present application comprises the following steps:

[0005] First slotting, taking the first material as the base material, along the thickness direction of the first material, the first material has opposite first and second sides, and a first groove is formed on the first side;

[0006] First compounding, placing the second material in the first groove, and connecting the second material with the first material;

[0007] Second slotting, turning over the first material, forming a second groove on the second side opposite the first groove along the thickness direction of the first material, until the second material in the first groove is exposed;

[0008] Second compounding, placing the second material in the second groove, connecting the second material with the first material, and connecting the two second materials in the second groove and the first groove.

[0009] The metal composite strip production process for fuse material according to an embodiment of the present application has at least the following beneficial effects: the first groove and the second groove are provided to facilitate the placement of the second material, and the first groove and the second groove can effectively prevent the second material from separating from the first material along the width direction of the first material, thereby improving the connection strength of the metal composite strip at the composite, which is beneficial to ensure that the metal composite strip fuses in time under the condition of current overload and the like, and ensures the safety of electricity use.

[0010] According to some embodiments of the present application, in the first slotting step, the depth of the first groove is 0.5 to 0.6 times the thickness of the first material.

[0011] According to some embodiments of the present application, in the second grooving step, a ratio of the depth of the second groove to the thickness of the first material is 0.6 to 0.65.

[0012] According to some embodiments of the present application, in the first compounding step, there is a first compounding temperature of 540° C. to 560° C., and the calendering deformation of the first material and the second material is 40% to 45%.

[0013] According to some embodiments of the present application, in the second compounding step, a second compounding temperature is provided, the second compounding temperature is 570° C. to 590° C., and the calendering deformation of the first material and the second material is 45% to 50%.

[0014] According to some embodiments of the present application, in the first compounding and the second compounding steps, the compounding speed is 0.85 m / min.

[0015] According to some embodiments of the present application, after the first composite and / or second composite step, a rolling step is further included. In the rolling step, the composited first material and the second material are rolled and deformed, and the thickness of the metal composite strip is reduced.

[0016] According to some embodiments of the present application, in the rolling step, a rolling deformation amount of the metal composite strip along a thickness direction of the metal composite strip is 35% to 45%.

[0017] According to some embodiments of the present application, the first groove and / or the second groove is a trapezoidal groove, and the shape of the second material matches the shape of the first groove and / or the second groove.

[0018] According to some embodiments of the present application, after the first composite and / or second composite step, at least one step of annealing, brushing and degreasing is further included.

[0019] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present application is further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is a flow chart of the production process of an embodiment of the present application;

[0022] Figure 2 This is a schematic structural diagram of the metal composite strip after the first slotting in an embodiment of the present application;

[0023] Figure 3 This is a schematic diagram of the structure of the metal composite strip after the first composite in an embodiment of the present application;

[0024] Figure 4 Fig. 4 is a schematic view of a structure of a metal composite tape after a second slotting according to an embodiment of the present application;

[0025] Figure 5 Fig. 5 is a schematic view of a structure of a metal composite tape after a second compounding according to an embodiment of the present application.

[0026] Reference signs: first material 100, first side 110, first groove 111, second side 120, second groove 121;

[0027] Second material 200. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described in detail below with reference to the attached drawings, which show by way of example embodiments in which the same or similar elements or elements having the same or similar functions are denoted by the same or similar reference signs throughout the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application only, and are not to be understood as limiting the present application.

[0029] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0030] In the description of the present application, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of indicated technical features.

[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and the person skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0032] In the description of this application, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0033] The following describes the embodiments of the present application in conjunction with the accompanying drawings:

[0034] refer to Figures 1 to 5 According to an embodiment of the present application, a process for producing a metal composite strip for a fusing material is provided for producing a metal composite strip having fusing properties. The process includes four steps: a first notching step, a first compounding step, a second notching step, and a second compounding step. In the first notching step, a first material 100 is used as a substrate. The first material 100 has a first side 110 and a second side 120 that are opposite to each other along the thickness direction of the first material 100. A first groove 111 is formed on the first side 110. In the first compounding step, a second material 200 is placed in the first groove 111, and the second material 200 is connected to the first material 100, thereby compounding the second material 200 with the first material 100. In the second notching step, the first material 100 is flipped over, and a second groove 121 is formed along the thickness direction of the first material 100 at a position on the second side 120 that is opposite to the first groove 111, until the second material 200 located in the first groove 111 is exposed. In the second compounding step, the second material 200 is placed in the second groove 121, the second material 200 is connected to the first material 100, and the two second materials 200 located in the second groove 121 and the first groove 111 are connected, which is beneficial to ensure the connection strength between the second materials 200 compounded twice.

[0035] The second material 200 is placed in the first groove 111 along the thickness direction of the first material 100. The first groove 111 can limit the movement of the second material 200 relative to the first material 100 along the width direction of the first material 100. Similarly, the second groove 121 can also limit the movement of the second material 200 relative to the first material 100 along the width direction of the first material 100, effectively preventing cracking of the metal composite strip.

[0036] Specifically, in the first and second composite steps, the connection between the first material 100 and the second material 200 can be achieved by rolling deformation. The rolling direction is along the thickness direction of the first material 100. By rolling, the second material 200 can be deformed to fill the first groove 111, thereby increasing the contact area between the first material 100 and the second material 200, which is beneficial to improving the composite strength of the metal composite strip and preventing separation of the first material 100 and the second material 200. In the second groove step, the groove depth of the second groove 121 is such that the second material 200 in the first groove 111 is exposed, which is used to ensure the connection between the second material 200 in the first groove 111 and the second material 200 in the second groove 121, that is, the groove bottom of the second groove 121 is the second material 200 in the first groove 111.

[0037] In addition, the first material 100 can be copper, and the second material 200 can be silver. Copper is cheaper than silver. Using the first material 100 as the base material is beneficial to reducing the production cost of the metal composite strip and avoiding waste of silver.

[0038] It should be noted that the metal composite strip has three directions of thickness, width and length, and the thickness, width and length of the first material 100 and the second material 200 correspond to the thickness, width and length of the metal composite strip, that is, the thickness direction of the first material 100 and the second material 200 is the thickness direction of the metal composite strip, the width direction of the first material 100 and the second material 200 is the width direction of the metal composite strip, and the length direction of the first material 100 and the second material 200 is the length direction of the metal composite strip, and the above thickness, width and length directions are perpendicular to each other.

[0039] refer to Figures 1 to 5 In some embodiments, in the first grooving step, the ratio of the depth of the first groove 111 to the thickness of the first material 100 is 0.5 to 0.6, that is, the first groove 111 is opened along the thickness direction of the first material 100 and has a certain depth. The total depth of the first groove 111 occupies 50% to 60% of the total thickness of the first material 100, so as to facilitate the connection of the second material 200 and the first material 100 in the first composite step.

[0040] It should be noted that the depth of the first groove 111 is aligned with the thickness of the first material 100. By limiting the ratio of the depth of the first groove 111 to the thickness of the first material 100, it is possible to prevent excessive groove depth, which could lead to fractures in the first material 100. Furthermore, during the first groove step, both the first side 110 and the second side 120 of the first material 100 are flat, facilitating the placement of the groove and ensuring groove accuracy. Thus, during the first groove step, limiting the ratio of the depth of the first groove 111 to the thickness of the first material 100 ensures groove accuracy for the first groove 111 while preventing fractures in the first material 100.

[0041] refer to Figures 1 to 5 In some embodiments, in the second grooving step, the ratio of the depth of the second groove 121 to the thickness of the first material 100 is 0.6 to 0.65, that is, the second groove 121 is opened along the thickness direction of the first material 100 and has a certain depth. The total depth of the second groove 121 occupies 60% to 65% of the total thickness of the first material 100, which is used to ensure that the second material 200 located in the first groove 111 is exposed, so that the second material 200 located in the second groove 121 can be tightly connected with the second material 200 in the first groove 111, which is beneficial to ensuring the melting performance of the metal composite strip.

[0042] refer to Figures 1 to 5 In other embodiments, during the first and second groove opening steps, the first groove 111 and the second groove 121 are both opened along the thickness direction of the first material 100. The ratio of the depth of the first groove 111 to the thickness of the first material 100 is 0.5 to 0.6, which helps to prevent the first material 100 from breaking while ensuring groove accuracy. The ratio of the depth of the second groove 121 to the thickness of the first material 100 is 0.6 to 0.65. When the second groove 121 is opened, the first groove 111 is filled with the second material 200. The opening of the second groove 121 removes a portion of the second material 200 compounded in the first compounding step, thereby ensuring the connection between the second material 200 in the second groove 121 and the second material 200 in the first groove 111, thereby ensuring the fusing performance of the metal composite strip.

[0043] refer to Figures 1 to 5In some embodiments, a first bonding temperature is set during the first bonding step, and the first bonding temperature is between 540°C and 560°C. Controlling the first bonding temperature facilitates rolling of the metal composite strip, thereby facilitating deformation and bonding of the first material 100 and the second material 200. Furthermore, during the first bonding step, the first material 100 and the second material 200 are subjected to a rolling deformation of 40% to 45%, thereby preventing an uneven surface of the metal composite strip caused by excessive rolling, and preventing a poor bonding efficiency caused by insufficient rolling. Thus, by setting the first bonding temperature and the rolling deformation during the first bonding step, the bonding strength between the first material 100 and the second material 200 is ensured, as well as the surface smoothness of the metal composite strip.

[0044] It should be noted that, along the thickness direction of the metal composite strip, the first material 100 and the second material 200 have a first thickness before calendering, and the first material 100 and the second material 200 have a first thickness difference before and after calendering. The ratio of the first thickness difference to the first thickness is the calendering deformation of the first material 100 and the second material 200 in the first composite step.

[0045] refer to Figures 1 to 5 In some embodiments, the second bonding step has a second bonding temperature of 570°C to 590°C, and the rolling deformation of the first material 100 and the second material 200 is 45% to 50%. The second bonding step is performed after the first bonding step. In the second bonding step, the second material 200 located in the second groove 121 is connected to the first material 100, and the second material 200 located in the second groove 121 is connected to the second material 200 located in the first groove 111. Limiting the second bonding temperature is beneficial to ensuring that the connection between the two second materials 200 has an appropriate temperature and ensures the stability of the connection between the two second materials 200. In addition, limiting the rolling deformation in the second bonding step is beneficial to ensuring that the second material 200 located in the second groove 121 is fully rolled and deformed, increasing the degree of contact between the second material 200 and the first material 100, thereby achieving a higher connection strength of the metal composite strip.

[0046] It should be noted that, along the thickness direction of the metal composite strip, the thickness of the second material 200 placed in the second groove 121 is greater than the thickness of the second material 200 placed in the first groove 111. This limits the rolling deformation amount in the second composite step to be greater than the rolling deformation amount in the first composite step. This is beneficial for fully rolling the second material 200 located in the second groove 121, ensuring sufficient connection between the two second materials 200, and making the various parts of the metal composite strip more uniform. During the second composite step, a portion of the second material 200 located in the first groove 111 is removed, and the second material 200 located in the first groove 111 abuts the second material 200 located in the second groove 121, ensuring the connection strength of the two second materials 200.

[0047] refer to Figures 1 to 5 In some embodiments, in the first and second compounding steps, in addition to limiting the temperature and calendering deformation, the compounding speed can be 0.85 m / min to avoid uneven surface of the metal composite strip due to excessively high calendering speed, and to ensure the compounding efficiency of the metal composite strip.

[0048] refer to Figures 1 to 5 In some embodiments, after the first composite and / or second composite step, a rolling step is also included. In the rolling step, the composited first material 100 and the second material 200 are rolled and deformed, and the thickness of the metal composite strip is reduced, which is beneficial to improving the flatness of the surface of the metal composite strip and making the metal composite strip more uniform.

[0049] For example, a first material 100 is selected as the base material. Before the first notching, the first material 100 is straightened to facilitate notching on the first material 100. After straightening, the first notching and the first bonding steps are performed in sequence. In the first bonding step, the second material 200 is placed in the first groove 111 and connected to the first material 100 by rolling to achieve bonding of the first material 100 and the second material 200. After the first bonding step, the bonded first material 100 and second material 200 are rolled to further reduce the thickness of the metal composite strip along the thickness direction of the metal composite strip, which is beneficial to improving the flatness of the surface of the metal composite strip.

[0050] refer to Figures 1 to 5 In some embodiments, a rolling step may also be included after the second composite step to further reduce the thickness of the metal composite strip. Compared with rolling to the required size once, the combination of composite rolling and rolling can further improve the surface smoothness of the metal composite strip and avoid defects such as pits and pores in the metal composite strip.

[0051] Alternatively, rolling is performed after the first composite step, and rolling is performed again after the second composite step. Multiple rolling can effectively improve the accuracy of the metal composite strip, make the connection between the first material 100 and the second material 200 more stable, and ensure the strength of the metal composite strip.

[0052] refer to Figures 1 to 5 In some embodiments, during the rolling step, the rolling deformation of the metal composite strip is 35% to 45% along the thickness direction of the metal composite strip, so as to avoid defects in the metal composite strip caused by excessive rolling deformation, ensure rolling efficiency, and shorten the production cycle.

[0053] It should be noted that after the first and / or second composite rolling steps, the thickness of the metal composite strip before rolling and the thickness after rolling have a second thickness difference, and the ratio of the second thickness difference to the thickness of the metal composite strip before rolling is the rolling deformation. The thickness of the metal composite strip before rolling is the thickness of the metal composite strip after composite in the first and / or second composite steps, and not the initial thickness of the first material 100 before the first grooving step.

[0054] refer to Figures 1 to 5 In some embodiments, the first groove 111 and / or the second groove 121 are trapezoidal grooves, and the shape of the second material 200 matches the shape of the first groove 111 and / or the second groove 121, which helps the second material 200 better fill the first groove 111 and / or the second groove 121. In addition, the trapezoidal groove has an inclined surface, which is used to provide a guide for placing the second material 200, thereby facilitating the placement of the second material 200 into the first groove 111 and / or the second groove 121.

[0055] For example, the first groove 111 is a trapezoidal groove, the bottom of the trapezoidal groove is smaller than the groove mouth of the trapezoidal groove, so that the trapezoidal groove gradually shrinks along the direction of entering the trapezoidal groove. The second material 200 can also be set to a trapezoidal shape. The second material 200 has two inclined surfaces, and the trapezoidal groove also has two inclined groove walls. The two inclined surfaces of the second material 200 are used to correspond to the two inclined groove walls of the trapezoidal groove to provide guidance for the placement of the second material 200. The second material 200 can be more easily placed in the first groove 111, and it is beneficial to make the second material 200 fill the first groove 111 more fully. After the first compounding, the second material 200 and the first material 100 fit more closely to avoid the formation of pores.

[0056] Alternatively, the second groove 121 is a trapezoidal groove, and the second material 200 placed in the second groove 121 is trapezoidal to match the second groove 121 , which is beneficial to improving the connection strength between the first material 100 and the second material 200 .

[0057] Alternatively, the first groove 111 and the second groove 121 are both trapezoidal grooves, and the second material 200 placed in the first groove 111 can be set to a trapezoid to match the shape of the first groove 111, and the second material 200 placed in the second groove 121 can also be set to a trapezoid to match the shape of the second groove 121, thereby making the connection between the first material 100 and the second material 200 more stable.

[0058] It should be noted that when the first groove 111 and the second groove 121 are both trapezoidal grooves, the second material 200 placed in the first groove 111 can match the shape of the first groove 111 set to a trapezoid, and the second material 200 placed in the second groove 121 can also match the shape of the second groove 121 set to a trapezoid. The second material 200 located in the first groove 111 is connected to the second material 200 located in the second groove 121. The two second materials 200 are connected so that the abutment surface between the second material 200 and the first material 100 is V-shaped. Compared with the planar structure, the V-shaped structure makes the contact area between the first material 100 and the second material 200 larger, which is beneficial to further improve the connection stability between the first material 100 and the second material 200 to ensure the strength of the metal composite strip.

[0059] In addition, the second material 200 in any of the above embodiments may also be a metal material with a fusing property, such as aluminum, palladium, and titanium.

[0060] refer to Figures 1 to 5 In some embodiments, after the first and / or second lamination steps, at least one of annealing, cleaning, and degreasing is further included. The annealing step is used to eliminate stress and defects between the first material 100 and the second material 200 after lamination, improve the stability and reliability of the metal composite strip, and optimize the grain structure within the metal composite strip, making the grains within the metal composite strip more uniform and dense. The cleaning step is used to remove impurities such as metal dust or debris from the surface of the metal composite strip to ensure the rolling lamination between the first material 100 and the second material 200. The degreasing process is used to remove oil, grease, and other dirt from the material surface, which is beneficial to ensuring the production quality of the metal composite strip.

[0061] For example, if the first material 100 is copper, it is straightened before the first slotting to facilitate the normal execution of subsequent production processes. After straightening, the first slotting is performed, and a first groove 111 is formed on the first side 110 of the first material 100. After the first groove 111 is formed, a first cleaning is performed to remove metal debris generated by the formation of the first groove 111. After the first cleaning, a first lamination is performed, in which a second material 200, which is silver, is placed into the first groove 111 to bond the first and second materials 100 and 200. After the first lamination, a first annealing is performed to eliminate stress generated by the first lamination and to make the grain structure within the metal composite strip more uniform and dense. After the first annealing, a second cleaning is performed to ensure a clean surface of the metal composite strip to facilitate the first rolling. After the second cleaning, the first rolling is performed. The first rolling is used to reduce the thickness of the metal composite strip and to ensure a more stable bond between the first and second materials 100 and 200. The first degreasing is performed after the first rolling to remove the grease applied in the first rolling step and ensure the cleanliness of the surface of the metal composite strip.

[0062] Similarly, after the first degreasing, the second grooving is carried out, and the third cleaning, second compounding, second annealing, fourth cleaning, second rolling and second degreasing are carried out in sequence. After the above processes are completed, the metal composite strip is stripped, inspected and packaged to meet different usage requirements.

[0063] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A process for producing a metal composite strip for a fusing material, characterized in that: The following steps are involved: A first groove is formed in the first material, wherein the first material has a first side and a second side opposite to each other, and a first groove is formed on the first side along the thickness direction of the first material. The ratio of the depth of the first groove to the thickness of the first material is 0.5 to 0.

6. In the first compounding, the second material is placed in the first groove, the second material is connected to the first material, a first compounding temperature is set at 540° C. to 560° C., and the calendering deformation of the first material and the second material is set at 40% to 45%. a second groove forming process, wherein the first material is turned over and a second groove is formed on the second side at a position opposite to the first groove along the thickness direction of the first material until the second material in the first groove is exposed, wherein the ratio of the depth of the second groove to the thickness of the first material is 0.6 to 0.65; In the second compounding, the second material is placed in the second groove, the second material is connected to the first material, and the two second materials located in the second groove and the first groove are connected, with a second compounding temperature, the second compounding temperature is 570°C to 590°C, and the calendering deformation of the first material and the second material is 45% to 50%.

2. The process for producing a metal composite strip for a fusing material according to claim 1, characterized in that: In the first compounding and the second compounding steps, the compounding speed is 0.85 m / min.

3. The process for producing a metal composite strip for fusing materials according to claim 1, characterized in that: After the first composite step and / or the second composite step, a rolling step is further included. In the rolling step, the composited first material and the second material are rolled and deformed, and the thickness of the metal composite strip is reduced.

4. The process for producing a metal composite strip for fusing materials according to claim 3, characterized in that: In the rolling step, a rolling deformation amount of the metal composite strip along a thickness direction of the metal composite strip is 35% to 45%.

5. The process for producing a metal composite strip for fusing materials according to claim 1, characterized in that: The first groove and / or the second groove is a trapezoidal groove, and the shape of the second material matches the shape of the first groove and / or the second groove.

6. The process for producing a metal composite strip for fusing materials according to claim 1, characterized in that: After the first compounding step and / or the second compounding step, at least one step of annealing, brushing and degreasing is further included.

Images