Surface Processes: Categorized Overview
What are the surface treatment processes for metal structural components? Categorized as follows: Electroplating (plating/coatings), Spraying (spraying/paint layers), Oxidation (anodizing/oxidation), and Passivation (passivation/rust prevention).
Industry experts suggest evaluating these processes by category—Electroplating (plating/coatings/glossy finish), Spraying (spraying/paint layers/multicolor), Oxidation (anodizing/oxidation/wear resistance), and Passivation (passivation/rust prevention/eco-friendliness)—to ensure nothing is overlooked.
Categorized Overview
- Electroplating: Electroplating/coatings (electroplating) – selection;
- Spraying: Spraying/paint layers (spraying) – common use;
- Oxidation: Anodizing/oxidation (oxidation) – consideration;
- Passivation: Passivation/rust prevention (passivation) – specialized;
- Categorized view: By category (process) to avoid omissions.
Evaluation Points
First, electroplating selection.
Electroplating/coatings (electroplating) are selected with environmental compliance in mind. Second, spraying is common.
Spraying/paint layers (spraying) are widely used, with a focus on preventing peeling.
Third, oxidation is a consideration.
Anodizing/oxidation (oxidation) is considered, with attention to preventing color inconsistency.
Fourth, passivation is specialized.
Passivation/rust prevention (passivation) is a specialized process, with a focus on regulatory compliance.
Pitfall Warnings
First, “Electroplating is not eco-friendly.”
Subject to restrictions (risk); select based on environmental standards.
Second, “Spraying has poor adhesion.”
Paint peeling (requiring rework) and spray coating inspection.
Third is “anodizing color variation”—an issue affecting appearance (resulting in losses) that requires consideration of the anodizing process.
Trends and Reminders
Surface finishing is moving towards environmental sustainability, characterized by eco-friendly processes (“greening”) and functional surfaces (high performance).
For purchasers, the recommendation is to evaluate options by category, prioritize environmental compliance, and verify coating adhesion.
Selecting the right surface finish ensures more stable quality.
