Horizontal-type electroplating tank device for realization of homogeneous thickness distribution of coating of metal band

Abstract

The invention discloses a horizontal-type electroplating tank device for realization of homogeneous thickness distribution of a coating of a metal band, the horizontal-type electroplating tank device comprises a tank body and a metal band therein, an upper and a lower electroplating zone are formed by the upper and the lower surface of the metal band and a positive pole vertically arranged in the horizontal-type electroplating tank device, the upper and the lower electroplating zone are provided with a liquid inlet pipe and a liquid outlet pipe for inflow and outflow of an electroplating liquid, a buffer cavity is arranged at an inflow port of the electroplating liquid, a buffer damping plate is arranged in the buffer cavity, a plurality of through holes of different diameters are processed on the buffer damping plate, the electroplating liquid flows through the buffer cavity to a zone close to the metal band, and then enters respectively into the upper and lower electroplating zone. By designing of the buffer cavity and the buffer damping plate, homogenization treatment of transverse distribution of a fluid in a space segment of the buffer cavity can be realized, wherein the space segment is close to the metal band, the treated fluid enters into the upper and lower electroplating zone so as to achieve transverse homogeneous distribution of the obtained coating.

Description

technical field [0001] The invention relates to the field of metal strip electroplating process equipment, in particular to a control method for realizing uniform lateral distribution of coating thickness when continuously electroplating metal on both sides of the metal strip on a continuous metal strip processing production line. Background technique [0002] In order to improve the surface performance of the metal strip, industrial users sometimes need to coat a layer of metal on the surface of the metal strip by means of electroplating, for example, the nickel plating process on the surface of the steel plate, the thickness of the nickel coating is usually only 100mg / m 2 . The purpose of nickel plating is either to improve the corrosion resistance of the surface of the metal strip, or as a pretreatment method to eliminate the defects on the surface of the metal strip and prepare for the next step of electroplating other metals. The above-mentioned coating thickness usual...

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved by the present invention is to provide a horizontal electroplating tank device suitable for the production of thin coatings on continuous metal strips, and the coating thickness of the metal strips is evenly distributed. Due to the uneven distribution of the fluid, the uneven lateral distribution of the coating thickness results in quality defects.

Images