Aluminum wire for evaporation coating

Abstract

The utility model provides an aluminum wire for evaporation coating, which comprises an aluminum wire core body, the aluminum wire core body is an aluminum wire made of aluminum metal, a protective layer is arranged on the aluminum wire core body, the aluminum wire core body is wrapped in the protective layer, the density of the protective layer is larger than that of the aluminum wire core body, and the aluminum wire core body is made of aluminum metal. The mass of the protective layer does not exceed 1% of the mass of the aluminum wire core body. According to the evaporation device, molten aluminum obtained after aluminum wires are fused is not prone to boiling, the situation that the boiled molten aluminum is sputtered to form on equipment around the evaporation device is avoided, waste of aluminum materials is reduced, meanwhile, pinholes can be prevented from being formed in the composite current collector, in addition, an aluminum wire core body in the composite current collector can be protected, and the service life of the evaporation device is prolonged. Therefore, the aluminum wire core body is not easy to be oxidized by the outside and damaged by foreign objects, and the evaporation coating quality of the composite current collector is further guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of evaporation coating, and in particular to an aluminum wire for evaporation coating. Background Technology

[0002] Aluminum wire can currently be used to fabricate composite current collectors. By feeding the aluminum wire into an evaporation device, the high temperature causes the wire to melt and evaporate, forming a thin film on the surface, thus creating the composite current collector. However, current aluminum wires are easily oxidized and damaged during transportation. Furthermore, when used for vapor deposition, the molten aluminum tends to boil, potentially spreading to surrounding equipment and wasting aluminum while also causing pinholes in the composite current collector. Therefore, existing technology requires further improvement. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an aluminum wire for evaporation coating.

[0004] To solve the above technical problems, the present invention adopts the following technical solution:

[0005] This utility model provides an aluminum wire for evaporation coating, including an aluminum wire core, wherein the aluminum wire core is an aluminum wire formed of aluminum metal, a protective layer is provided on the aluminum wire core, the aluminum wire core is wrapped in the protective layer, the density of the protective layer is greater than that of the aluminum wire core, and the mass of the protective layer does not exceed 1% of the mass of the aluminum wire core.

[0006] Furthermore, the aluminum wire for evaporation coating provided by this utility model has a protective layer that is a metal protective layer. The protective layer can be a metal with higher strength and / or corrosion resistance than aluminum, and with a high melting point and high density. The protective layer can be a metal protective layer of tungsten, rhenium, osmium, tantalum, molybdenum, niobium, iridium, ruthenium, hafnium, technetium, rhodium, vanadium, chromium, zirconium, platinum, thorium, titanium, lutetium, protactinium, palladium, thulium, scandium, iron, erbium, yttrium, cobalt, holmium, nickel, dysprosium, terbium, curium, gadolinium, beryllium, manganese, uranium, copper, samarium, or gold.

[0007] Furthermore, the aluminum wire for evaporation coating provided by this utility model has a protective layer with higher corrosion resistance than the aluminum wire core layer, and a higher melting point than the aluminum wire core layer.

[0008] Furthermore, in the aluminum wire for evaporation coating provided by this utility model, the strength of the protective layer is higher than that of the aluminum wire core layer.

[0009] Furthermore, in the aluminum wire for evaporation coating provided by this utility model, the mass of the protective layer accounts for 0.1 to 0.6% of the mass of the aluminum wire core.

[0010] Furthermore, in the aluminum wire for evaporation coating provided by this utility model, when the mass of the aluminum wire core is 500g to 700g, the mass of the protective layer accounts for 0.3% of the mass of the aluminum wire core.

[0011] Furthermore, in the aluminum wire for evaporation coating provided by this utility model, when the mass of the aluminum wire core is 800g to 1500g, the mass of the protective layer accounts for 0.3% to 0.6% of the mass of the aluminum wire core.

[0012] Furthermore, the aluminum wire for evaporation coating provided by this utility model has a circular cross-section and a diameter of 1.00mm to 3.00mm.

[0013] Furthermore, the aluminum wire for evaporation coating provided by this utility model has a core diameter of 1.5mm to 2.5mm.

[0014] Furthermore, in the aluminum wire for evaporation coating provided by this utility model, the cross-section of the protective layer is annular, and the width of the annulus is 0.1mm to 0.5mm.

[0015] Compared to existing technologies, this invention provides an aluminum wire for evaporation coating, comprising an aluminum wire core, wherein the aluminum wire core is an aluminum wire formed of aluminum metal, and a protective layer is disposed on the aluminum wire core, the aluminum wire core being wrapped within the protective layer, the density of the protective layer being greater than that of the aluminum wire core, and the mass of the protective layer not exceeding 1% of the mass of the aluminum wire core. This invention prevents the molten aluminum from boiling easily, avoiding splashing of boiling aluminum onto equipment around the evaporation device, reducing aluminum waste, and also preventing pinholes from forming on the composite current collector. Furthermore, it protects the aluminum wire core, making it less susceptible to oxidation and damage from external objects, further ensuring the quality of the evaporation coating on the composite current collector. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the aluminum wire used for evaporation coating provided by this utility model.

[0018] Explanation of icon numbers:

[0019] 100 aluminum wire core

[0020] Protective layer 200 Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] like Figure 1 As shown, this utility model provides an aluminum wire for evaporation coating, including an aluminum wire core 100, which is an aluminum wire formed of aluminum metal. A protective layer 200 is disposed on the aluminum wire core 100, and the aluminum wire core 100 is wrapped inside the protective layer 200. The density of the protective layer 200 is greater than that of the aluminum wire core 100, and the mass of the protective layer 200 does not exceed 1% of the mass of the aluminum wire core 100. This utility model can prevent the molten aluminum from boiling easily, avoiding splashing of boiling aluminum liquid onto the equipment around the evaporation device, reducing aluminum waste. It can also prevent pinholes from forming on the composite current collector. In addition, it can also protect the aluminum wire core 100, making it less susceptible to oxidation and damage from external objects, further ensuring the quality of evaporation coating on the composite current collector.

[0025] Furthermore, in the aluminum wire for evaporation coating provided by this utility model, the protective layer 200 is a metal protective layer 200. The protective layer 200 can be a metal with higher strength and / or corrosion resistance than aluminum, and with a higher melting point and density. The protective layer 200 can be tungsten, rhenium, osmium, tantalum, molybdenum, niobium, iridium, ruthenium, hafnium, technetium, rhodium, vanadium, chromium, zirconium, platinum, thorium, titanium, lutetium, protactinium, palladium, thulium, scandium, iron, erbium, yttrium, cobalt, holmium, nickel, dysprosium, terbium, curium, gadolinium, beryllium, manganese, uranium, copper, samarium, or gold. Furthermore, in the aluminum wire for evaporation coating provided by this utility model, the corrosion resistance and / or density of the protective layer 200 are higher than those of the aluminum wire core layer. Furthermore, in the aluminum wire for evaporation coating provided by this utility model, the strength of the protective layer 200 is higher than that of the aluminum wire core layer. In this invention, a high melting point ensures that the protective layer does not melt when the aluminum metal molten, thus preventing it from forming on the composite current collector and affecting its properties. Corrosion resistance protects the aluminum layer from oxidation. High strength prevents external physical factors from damaging the aluminum layer. High density allows the protective layer 200 to form droplets that fall to the bottom of the molten aluminum, preventing it from boiling over.

[0026] Furthermore, in the aluminum wire for evaporation coating provided by this invention, the protective layer 200 accounts for 0.1% to 0.6% of the mass of the aluminum wire core 100. The inventors have discovered that aluminum wire with this proportion will not boil after melting. More preferably, in the aluminum wire for evaporation coating provided by this invention, when the mass of the aluminum wire core 100 is 500g to 700g, the mass of the protective layer 200 accounts for 0.3% of the mass of the aluminum wire core 100. More preferably, in the aluminum wire for evaporation coating provided by this invention, when the mass of the aluminum wire core 100 is 800g to 1500g, the mass of the protective layer 200 accounts for 0.3% to 0.6% of the mass of the aluminum wire core 100. Such aluminum wire for evaporation coating is superior in terms of oxidation resistance, corrosion resistance, strength, and prevention of boiling of molten aluminum.

[0027] Furthermore, the aluminum wire for evaporation coating provided by this utility model has a circular cross-section and a diameter of 1.00 mm to 3.00 mm. In this application, the overall aluminum wire is cylindrical, the aluminum wire core 100 is also cylindrical, and the protective layer 200 wraps around the surface of the aluminum wire core 100. Preferably, the aluminum wire for evaporation coating provided by this utility model has a diameter of 1.5 mm to 2.5 mm for the aluminum wire core 100. Furthermore, the aluminum wire for evaporation coating provided by this utility model has a circular cross-section for the protective layer 200, with a ring width of 0.1 mm to 0.5 mm, that is, the difference between the outer diameter and the inner diameter of the protective layer 200 is 0.1 mm to 0.5 mm.

[0028] In the production of the aluminum wire for evaporation coating of this utility model, aluminum metal material is first formed into an aluminum wire core 100 with a diameter of 1.5mm-2.5mm using methods such as drawing, extrusion, shearing, or brazing. Then, a protective layer 200 is thermally sprayed onto the aluminum wire core 100 using a thermal spraying device. During the process of forming the protective layer 200 on the aluminum wire using the thermal spraying device, the protective layer 200 is heated to a molten or semi-molten state. The molten spraying material is atomized, and the molten or softened fine particles are ejected forward during the flight stage. The particles collide, deform, solidify, and accumulate on the substrate surface, thereby forming the protective layer 200.

[0029] This application also provides a composite current collector preparation system, including an aluminum wire preparation device, a spraying device, and a vacuum coating device. The aluminum wire preparation device is used to prepare an aluminum wire core 100 and can be an aluminum wire extruder. Then, a protective layer 200 is sprayed onto the aluminum metal layer using a thermal spraying device to form the finished aluminum wire core 100. Next, in the vacuum coating equipment, a wire feeding device sends the aluminum wire to an evaporation device within the vacuum coating equipment. The evaporation device can be a crucible or an evaporation boat, etc. The composite current collector produced by this invention can avoid oxidation of the aluminum metal layer. Simultaneously, due to the presence of the protective layer 200, boiling of the aluminum wire during vapor deposition can be reduced.

[0030] In summary, this utility model provides an aluminum wire for evaporation coating, comprising an aluminum wire core, wherein the aluminum wire core is an aluminum wire formed of aluminum metal, and a protective layer is disposed on the aluminum wire core. The aluminum wire core is wrapped within the protective layer, the density of the protective layer is greater than that of the aluminum wire core, and the mass of the protective layer does not exceed 1% of the mass of the aluminum wire core. This utility model prevents the molten aluminum from boiling easily, avoiding splashing of boiling aluminum liquid onto the equipment around the evaporation device, reducing aluminum waste. It also prevents pinholes from forming on the composite current collector, and further protects the aluminum wire core, making it less susceptible to oxidation and damage from external objects, thus further ensuring the quality of the evaporation coating on the composite current collector.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. An aluminum wire for evaporation coating, characterized in that, The aluminum wire core is an aluminum wire formed of aluminum metal, a protective layer is arranged on the aluminum wire core, the aluminum wire core is wrapped in the protective layer, the density of the protective layer is greater than that of the aluminum wire core, the mass of the protective layer is not more than 1% of the mass of the aluminum wire core, the mass of the protective layer accounts for 0.1-0.6% of the mass of the aluminum wire core, and the protective layer is thermal sprayed on the aluminum wire core.

2. The aluminum wire for evaporation coating according to claim 1, wherein When the mass of the aluminum wire core is 500-700 g, the mass of the protective layer accounts for 0.3% of the mass of the aluminum wire core.

3. The aluminum wire for evaporation coating according to claim 1, wherein When the mass of the aluminum wire core is 800-1500 g, the mass of the protective layer accounts for 0.3-0.6% of the mass of the aluminum wire core.

4. The aluminum wire for evaporation coating according to claim 1, wherein The cross section of the evaporation coating aluminum wire is circular, and the diameter of the evaporation coating aluminum wire is 1.00-3.00 mm.

5. The aluminum wire for evaporation coating according to claim 4, wherein The diameter of the aluminum wire core is 1.5-2.5 mm.

6. The aluminum wire for evaporation coating according to claim 4, wherein The cross section of the protective layer is in the shape of a circular ring, and the ring width is 0.1-0.5 mm.

7. The aluminum wire for evaporation coating according to any one of claims 1 to 6, wherein The melting point of the protective layer is higher than that of the aluminum wire core.

8. The aluminum wire for evaporation coating according to claim 7, wherein The corrosion resistance of the protective layer is higher than that of the aluminum wire core, and the strength of the protective layer is higher than that of the aluminum wire core.

9. The aluminum wire for evaporation coating according to claim 8, wherein The protective layer is a metal protective layer, and the metal protective layer is a tungsten, rhenium, osmium, tantalum, molybdenum, niobium, iridium, ruthenium, hafnium, technetium, rhodium, vanadium, chromium, zirconium, platinum, thorium, titanium, lutetium, protactinium, palladium, thulium, scandium, iron, erbium, yttrium, cobalt, holmium, nickel, dysprosium, terbium, curium, gadolinium, beryllium, manganese, uranium, copper, samarium or gold metal protective layer.

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