Production method of phosphor copper ball for electroplating

Abstract

The invention discloses a production method of a phosphor copper ball for electroplating, and relates to a method which adopts a metallographic analysis method to control the quality of a phosphor copper ball for electroplating. The production method is characterized by adopting an up-drawn method; after the rolling of phosphor copper rods, metallographic analysis is carried out on the phosphor copper rods so as to judge whether the phosphor copper rods meet the preset metallographic structure analysis standards of finished phosphor copper rod on crystal particle fineness, tissue homogeneity, and compactness; the unqualified phosphor copper rods are returned to the rolling process by adopting the up-drawn method, and the rolling-judging-rolling process is continuously repeated until the phosphor copper rods meet the standards on crystal particle fineness, tissue homogeneity, and compactness so as to finish the preparation of phosphor copper balls. The production method utilizes metallographic analysis to observe the crystal particle size of phosphor copper ball, and has the advantages of directness, simplicity, and visualization. The prepared phosphor copper ball is used as a positive pole material for electroplating, and has the advantages of uniform and compact metallographic structure; moreover the fineness of the crystal particle size is strictly controlled to avoid the existence of crude and big crystal particles, and thus the consumption amount of phosphor copper ball during the electroplating process is effectively reduced.

Description

technical field [0001] The invention discloses a method for producing phosphor bronze balls for electroplating, and relates to a method for controlling the quality of phosphor bronze balls for electroplating by metallographic analysis. Background technique [0002] Phosphor bronze balls are mainly used in the electroplating of double-sided boards and multi-layer boards in printed circuit boards, in addition to electroplating in hardware and other industries. The production of phosphor bronze balls usually adopts horizontal continuous casting to produce phosphor bronze balls and upward drawing method to produce phosphor bronze balls. [0003] At present, there are domestic standards for the composition of phosphor bronze balls, and the quality of phosphor bronze balls is usually judged from the chemical composition and appearance quality. Phosphor bronze balls produced by many phosphor bronze ball manufacturers are very good in terms of appearance, gloss, and surface quality...

AI Technical Summary

Problems solved by technology

Phosphor bronze balls produced by many phosphor bronze ball manufacturers are very good in terms of appearance, gloss, and surface quality. They are used as anode phosphor copper for electroplating in phosphor bronze balls. Balls, some products will have a problem of excessive consumption compared with the same period last year

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