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Article: Tin electrolyte cuts cost of plating sludge treatment.
- Article from:
- Advanced Materials & Processes
- Article date:
- January 1, 2001
CopyrightCOPYRIGHT 2001 ASM International. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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A low-pollution, high-efficiency tin electrolyte has reportedly been commercially introduced by NKK Steel, Japan, and its United States subsidiary, National Steel Corp. Steel sheet plated in the tin electrolyte is called electrolytic tinpiate, a material for food and beverage cans. To achieve uniform tin plating, high-performance additives must be added to the bath. The two standard electrolytes are the phenol sulfonic acid-based ferrostan electrolyte, which is preferred in Japan; and the tin halide-based halogen electrolyte, which is widely used in the United States. The ferrostan electrolyte generates no chloride or fluoride sludge, but has a drawback in poor ...