Metal Surface Treatment Application Cases

For red copper parts with surface oxidation, fingerprints and short-term discoloration, Minghan established a degreasing, copper passivation and sealing process to improve surface cleanliness, oxidation resistance and storage stability.

For brass parts that easily darken, discolor and show uneven appearance after cleaning, Minghan established a degreasing, brass passivation and drying packaging process to improve surface cleanliness, oxidation resistance and storage stability.

For die-cast aluminum parts with darkening, uneven appearance, short-term oxidation and insufficient corrosion resistance after cleaning, Minghan established a degreasing, natural passivation and drying protection process to improve surface uniformity, oxidation resistance and handling stability.

For stainless steel parts with weld discoloration, surface oxidation, light rust spots and insufficient corrosion resistance, Minghan established a cleaning, activation, passivation, rinsing and drying process to improve surface cleanliness and corrosion resistance.

For copper parts with dull oxidation, visible machining marks and insufficient brightness, Minghan established a degreasing, copper polishing and optional anti-oxidation protection process to improve surface brightness, cleanliness and appearance consistency.

For stainless steel hardware with machining oil, fingerprints, dust and polishing residue, Minghan established a stainless steel degreasing, rinsing and drying process to improve surface cleanliness, appearance consistency and subsequent passivation stability.