Electroplating equipment and electroplating method for foam metal material

Abstract

The invention discloses electroplating equipment and electroplating method for a foam metal material. The electroplating equipment comprises an unrolling device, a pre-plating slot, an electroplatingslot and a rolling device, wherein the pre-plating slot comprises a pre-plating slot body, an anode I and an anode II which are distributed up and down in the pre-plating slot body, and a cathode plate I arranged above the pre-plating liquid level; the anode I and the anode II are in an arc shape; and arc length of the anode I is smaller than that of the anode II. The electroplating method comprises the following steps of extruding out air inside a foam base material subjected to conductive treatment before pre-plating through mutual action of a transmission roller and a hydraulic roller, providing electroplating positive ions by the anode I and the anode II, energizing a cathode, and performing primary plating and post-treatment to obtain the foam metal material. The upper and lower anodes are arranged in the pre-plating slot, and thickness of metal plated on front and back surfaces of the base material is more uniform. The cathode in the pre-plating slot body is not soaked into pre-plating liquid, and metal is not deposited or plated on the surface of the cathode, so that a product qualification rate is 90% or more, and a cathode utilization rate is increased.

Description

technical field [0001] The invention belongs to the technical field of electroplating, and in particular relates to electroplating equipment and an electroplating method for foam metal materials. Background technique [0002] Traditional engineering believes that the existence of holes in metal materials is often the core of the formation and expansion of microcracks in materials, which will adversely affect the physical, chemical and mechanical properties of materials. But when the number of holes in the material reaches a certain level and the distribution is uniform, the various properties of the material are greatly improved, which is the metal foam material. Foam metal material is a composite material composed of metal matrix and holes. Due to the large number of holes in the material, compared with solid metal materials, it has low density, large specific surface area, high specific strength, excellent permeability, and good electromagnetic shielding performance. , go...

AI Technical Summary

Problems solved by technology

[0003] Due to the large resistance of the conductive sponge, the conductivity is not good. In the prior art, the conductive area of ​​the cathode is increased by increasing the use of a pre-plating roller (that is, a large conductive cylinder), and the conductivity of the cathode is increased to improve the poor conductivity and the low amount of conductive metal. The resistance of the substrate is high, but because the pre-plating roller is immersed in the solution for a long time under conductive conditions, a large amount of plating metal is deposited on the pre-plating roller, which affects the metal plating amount of the plated product (conductive sponge)

When the amount of metal deposition on the surface of the pre-plating roller reaches a certain level, the metal layer bursts due to the stress release of the metal layer caused by the curved surface (in the form of large or small pieces of metal fragments), thereby cutting or hooking the product, and the plating If the metal layer falls into the solution or product, it will cause foreign matter to adhere to the product, and the debris will block the pipeline, making it difficult to dredge the pipeline

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