Mr. Zhang is the owner of an electroplating factory in Zhengzhou, Henan Province, which galvanizes and processes Foxconn's auto parts.Recently, the black passivation coating of galvanized workpieces produced by Mr. Zhang always has flow marks, and the appearance is not very uniform, which can not meet the requirements of Foxconn.In order to keep the order, Mr. Zhang wants to quickly replace a trivalent chromium black zinc passivation solution that will not have flow marks.
One day, Mr. Zhang saw Bigolly's trivalent chrome black zinc passivation solution BZ-216 while searching online, and asked about the characteristics of this passivation solution and whether the use engineer would have flow marks.The engineer introduced that this black zinc passivation solution is a new product independently developed by Bigolly, which is suitable for the black passivation treatment of galvanized workpieces. Large areas of workpieces will not be colored and have no flow marks after passivation, and provided a product effect picture for Mr. Zhang to compare.After considering, Mr. Zhang decided to send several sample pieces to the engineer for proofing and comparison.
Therefore, the engineer proofing the sample according to Mr. Zhang's normal process.A week later, Mr. Zhang received the samples from the engineer. The passivation film was black and bright, uniform, and without color and flow marks. The neutral salt spray test of the workpiece could also pass 96 hours. Such coating could meet the requirements of Foxconn and also effectively improve production efficiency.So Mr. Zhang directly placed an order and asked the engineer to guide the production on site.
Therefore, when our galvanized workpieces always have flow marks after black passivation, try this trivalent chromium black zinc passivation solution BZ-216 to effectively improve production efficiency.If you are interested in this trivalent chrome black zinc passivation solution, please contact Bigolly customer service for free samples and detailed technical information!