Mr. Han is the owner of a speaker parts galvanizing factory in Ningbo, Zhejiang Province, which ranks among the top ten in terms of production scale in the local area. He mainly produces speaker basin frame workpieces for export. Therefore, in addition to beautiful appearance and color, the workpieces also need to ensure good performance requirements. However, Mr. Han's basin frame workpiece has always had uneven color, with a lighter inner color that is prone to yellowing and poor corrosion resistance. Therefore, Mr. Han wants to replace it with a galvanized trivalent chromium blue passivation agent with better corrosion resistance.
One day, Mr. Han searched online and found the trivalent chromium blue passivation agent BZ-212 from Bigley Technology. He also contacted engineers over the phone to learn more about the characteristics of this passivation agent. After understanding Mr. Han's requirements for the workpiece, the engineer recommended Mr. Han to use this passivation agent BZ-212 and informed him that this passivation agent has a wide operating range and good uniformity of the workpiece coating. After passivation, the workpiece stops for 30 seconds without turning yellow in the hole and concave areas. Moreover, this passivation agent has good corrosion resistance and can fully meet Mr. Han's requirements for the workpiece.
So, after referring to the rendering provided by the engineer, Mr. Han decided to buy one bucket first and give it a try. Half a month later, Mr. Han directly signed a purchase and sales contract with Bigley. Originally, Mr. Han used this trivalent chromium blue zinc passivation agent for repeated testing. The color of the basin frame workpiece was very uniform, and there was no color difference in the hole and concave areas. Moreover, the neutral salt spray resistance test of the passivated workpiece could reach more than 72 hours, which was also recognized by his customers.
Therefore, the basin frame workpiece should choose a specialized zinc plated trivalent chromium blue passivation agent BZ-212 to ensure uniform color of the workpiece coating and good corrosion resistance. If you also want to find a trivalent chromium blue passivation agent with uniform color, you can contact Bigley customer service to obtain free samples and detailed technical information!
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