BCr (black chrome) with excellent release properties, abrasion resistance, and high corrosion resistance.
The "chromium-based surface treatment" of the electrochemical membrane industry is superior to conventional hard chrome plating (Hv=700), which is why this Cr-C4 treatment is established as the standard treatment for "hard chrome plating." "BCr (black chrome)" has a uniform micro-crack (velvet-like) structure, achieving high corrosion resistance. Additionally, we have developed a low hexavalent BCr that complies with RoHS. 【Features】 ■ Forms a thin film of 2-3μm, suitable for precision parts ■ Due to the uniform micro-cracks, corrosion current is dispersed, providing high corrosion resistance ■ The velvet-like film serves as a pre-treatment for painting and coating parts ■ Implements work processes in accordance with MIL-DTL-14538D ■ Developed a low hexavalent BCr compliant with RoHS (removal of residual hexavalent chromium) *For more details, please refer to the catalog or feel free to contact us.
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【Specifications】 ■ Has good adhesion, excellent heat resistance, and does not reflect light ■ Suitable for military supplies such as fire extinguishers and semiconductor (optical system) components *For more details, please refer to the catalog or feel free to contact us.
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[Applications] ■ Semiconductor manufacturing equipment parts, precision machinery parts ■ Military supplies, electronic components, etc. *For more details, please refer to the catalog or feel free to contact us.*
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At Denka Coating Industry, we will propose the most suitable surface treatment based on your applications, purposes, and usage conditions. Even at the conceptual stage without drawings, we will respond to your inquiries. For estimates, if you provide us with drawings (such as a cartoon diagram that shows the shape), lot numbers, and types of treatment, we will respond accordingly. Denka Coating Industry is also capable of developing original treatments and coatings. If you are having trouble with surface treatment or plating, please do not hesitate to consult with us.