Sandwich lubrication aluminum plate

Abstract

The utility model discloses a sandwich lubricating aluminum plate which comprises an anti-impact surface layer, an aluminum foil surface layer is bonded on one side of the anti-impact surface layer, a first corona bonding layer is arranged on one side of the aluminum foil surface layer, a cutting force dispersing layer is bonded on one side of the first corona bonding layer, and a second corona bonding layer is arranged on one side of the cutting force dispersing layer. One side of the cutting force dispersion layer is bonded with an enhanced lubricating layer, one side of the enhanced lubricating layer is bonded with an elastic buffer layer, one side of the elastic buffer layer is bonded with a hard supporting layer, one side of the hard supporting layer is bonded with a second corona bonding layer, and the second corona bonding layer is bonded with a second corona bonding layer. And an aluminum foil bottom layer is bonded on one side of the second corona bonding layer. The cutting force dispersing layer is made of wear-resistant materials capable of dispersing cutting force, so that the cutting force can be effectively dispersed during drilling, excessive concentration of the cutting force is avoided, and possible problems such as burrs in the cutting process are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB drilling, in particular to a sandwich lubricating aluminum plate. Background Art

[0002] With the continuous upgrading and development of new energy vehicles, high-end medical equipment, and AI artificial intelligence, high requirements are put forward for the design and processing of circuit boards. The design of high-frequency and high-speed materials with high TG thickness also makes the drilling positioning accuracy and hole wall quality / burst requirements of the most important connection bridge of high-level circuit boards higher and higher. Whether it is a panel / middle board or a bottom board, the drilling demand for "zero burr", "zero burr", and "high-precision interconnection between layers" is becoming more and more intense. Sandwich lubricated aluminum plates are mainly used for processing and manufacturing printed circuit boards (PCBs), and are widely used in new energy vehicles, high-end medical equipment, 5G communications, and AI artificial intelligence server boards. The drilling process of PCB circuit boards needs to be carried out under high speed conditions. In order to ensure the drilling hole position accuracy and improve the drilling quality of the hole wall, ultra-precision thermally conductive lubricated aluminum plates are mostly used in the drilling process to meet the drilling positioning accuracy and hole wall quality / burst requirements of the most important connection bridge of high-level circuit boards.

[0003] The commonly used non-water-soluble coated aluminum sheets have many limitations in the drilling process due to their material and structure, including 1: The main component of the non-water-soluble coated aluminum sheet is PE / PP film, and the film surface has good toughness. The small drill bit (0.075-0.2mm diameter) is prone to abnormal film material entanglement on the drill bit during the drilling process, and abnormal chip removal in the circuit board hole causes hole blockage, affecting the PCB quality and causing scrapping. Due to the high-frequency, high-speed material and high TG thickness design of the board, the panel flash problem cannot be controlled during the PCB drilling machine processing. Utility Model Content

[0004] The utility model aims to provide a sandwich lubricated aluminum plate to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sandwich lubricating aluminum plate, comprising an impact-resistant surface layer, an aluminum foil surface layer bonded to one side of the impact-resistant surface layer, a first corona bonding layer is arranged on one side of the aluminum foil surface layer, a cutting force distribution layer is bonded to one side of the first corona bonding layer, an enhanced lubrication layer is bonded to one side of the cutting force distribution layer, an elastic buffer layer is bonded to one side of the enhanced lubrication layer, a hard supporting layer is bonded to one side of the elastic buffer layer, a second corona bonding layer is bonded to one side of the hard supporting layer, the second corona bonding layer, and an aluminum foil bottom layer is bonded to one side of the second corona bonding layer.

[0006] The thickness of the aluminum foil surface layer is 0.01-0.3 mm, and the thickness of the aluminum foil bottom layer is between 0.02-0.3 mm.

[0007] The thickness of the enhanced lubricating layer is 0.01-0.1 mm.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] Since the utility model is designed with an impact-resistant surface layer, the sandwich lubricated aluminum plate can effectively resist the impact force of the drill bit and protect the internal layers from being damaged, thereby extending the service life of the plate.

[0010] The cutting force dispersing layer of the utility model adopts a wear-resistant material capable of dispersing cutting force, which can effectively disperse the cutting force during drilling, avoid excessive concentration of the cutting force, and reduce problems that may occur during the cutting process, such as flashing.

[0011] The enhanced lubricating layer of the utility model adopts a highly efficient lubricating material, which can significantly reduce the friction between the drill bit and the plate, reduce the cutting temperature and cutting force, which not only improves the drilling efficiency, but also further reduces the heat and wear that may be generated during the cutting process.

[0012] The elastic buffer layer of the utility model can absorb the impact and vibration during the drilling process, help reduce the uneven cutting force caused by the excessive hardness of the material, further protect the drill bit and the plate, and also reduce the noise and vibration during the cutting process.

[0013] The hard supporting layer of the utility model provides additional supporting force, effectively preventing the deformation of the plate that may occur during the high-frequency and high-speed drilling process, and maintaining the stability of the plate and the accuracy of the drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the utility model.

[0015] In the figure: 1. impact-resistant surface layer; 2. aluminum foil surface layer; 3. first corona bonding layer; 4. cutting force distribution layer; 5. enhanced lubrication layer; 6. elastic buffer layer; 7. hard support layer; 8. second corona bonding layer; 9. aluminum foil bottom layer. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1The utility model provides a technical solution: a sandwich lubricating aluminum plate, comprising an impact-resistant surface layer 1, an aluminum foil surface layer 2 is bonded to one side of the impact-resistant surface layer 1, a first corona bonding layer 3 is arranged on one side of the aluminum foil surface layer 2, a cutting force dispersion layer 4 is bonded to one side of the first corona bonding layer 3, a reinforced lubricating layer 5 is bonded to one side of the cutting force dispersion layer 4, an elastic buffer layer 6 is bonded to one side of the reinforced lubricating layer 5, a hard supporting layer 7 is bonded to one side of the elastic buffer layer 6, a second corona bonding layer 8 is bonded to one side of the hard supporting layer 7, and an aluminum foil bottom layer 9 is bonded to one side of the second corona bonding layer 8.

[0018] The thickness of the aluminum foil surface layer 2 is 0.01-0.3 mm, and the thickness of the aluminum foil bottom layer 9 is between 0.02-0.3 mm.

[0019] The thickness of the enhanced lubricating layer 5 is usually between 0.01 and 0.1 mm.

[0020] When used for drilling, the sandwich lubricated aluminum plate is covered with the target PCB board, wherein the aluminum foil bottom layer 9 is in contact with the target PCB board, and the aluminum foil surface layer 2 faces the drill needle;

[0021] The corona bonding layer adopts ceramic corona treatment technology, which is a glue-free bonding technology;

[0022] The hard supporting layer 7 is made of hard material, such as hard plastic or thin metal plate.

[0023] Function: Provide additional support to prevent deformation of the plate during drilling due to the high-frequency, high-speed material and high TG thickness design, thereby reducing the possibility of panel flashing.

[0024] Elastic buffer layer 6: made of a material with a certain elasticity, such as rubber or elastic polymer;

[0025] Function: Absorb shock and vibration during drilling, reduce uneven cutting force caused by excessive material hardness, and thus reduce the risk of flashing.

[0026] Cutting force dispersing layer 4: made of wear-resistant material capable of dispersing cutting force, such as a polymer composite material containing hard particles;

[0027] Function: When drilling, this layer can effectively disperse the cutting force to avoid excessive concentration of cutting force and cause flashing.

[0028] Enhanced lubricating layer 5: using more efficient lubricating materials, such as polymer composite materials containing nano-lubricating particles;

[0029] Function: Provide better lubrication performance, reduce the friction between the drill bit and the plate, thereby reducing the cutting temperature and cutting force, and further reducing the generation of flash.

[0030] Impact-resistant surface 1: Made of materials with good impact resistance, such as polycarbonate or specially coated metal foil;

[0031] Function: During the drilling process, this layer can effectively resist the impact force of the drill bit, protect the internal layer from damage, and reduce the panel flash caused by impact.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lubricated aluminum sandwich plate, comprising an impact-resistant surface layer (1), characterized in that: An aluminum foil surface layer (2) is bonded to one side of the impact-resistant surface layer (1), a first corona adhesive layer (3) is provided to one side of the aluminum foil surface layer (2), a cutting force distribution layer (4) is bonded to one side of the first corona adhesive layer (3), a reinforced lubricating layer (5) is bonded to one side of the cutting force distribution layer (4), an elastic buffer layer (6) is bonded to one side of the reinforced lubricating layer (5), a hard supporting layer (7) is bonded to one side of the elastic buffer layer (6), a second corona adhesive layer (8) is bonded to one side of the hard supporting layer (7), and an aluminum foil bottom layer (9) is bonded to one side of the second corona adhesive layer (8).

2. The lubricated aluminum sandwich plate according to claim 1, characterized in that: The thickness of the aluminum foil surface layer (2) is 0.01 to 0.3 mm, and the thickness of the aluminum foil bottom layer (9) is between 0.02 and 0.3 mm.

3. The lubricated aluminum sandwich plate according to claim 1, characterized in that: The thickness of the enhanced lubricating layer (5) is between 0.01 and 0.1 mm.

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