Industry Background
Home appliances including air conditioners, refrigerators, washing machines and small household appliances adopt numerous metal parts such as galvanized steel shells, compressor housings, copper-aluminum connecting pipes, circuit boards and terminal connectors. The home appliance industry features fast production pace and large output, with strict requirements for surface cleanliness and production efficiency. Temporary rust or surface contamination during processes will affect product quality and assembly yield.
Industry Challenges
2.Micro-corrosion of terminals and connectors
Terminals and connectors inside air conditioners and refrigerators work in enclosed humid spaces. Alternating dry and wet conditions during refrigeration and defrosting cause micro-corrosion, raising contact resistance and even triggering control failures.3.Reduced coating adhesion caused by anti-rust oil residues
Electrostatic spraying is widely used for home appliance shells. Residues of traditional oil-based rust preventatives lead to poor paint adhesion, blistering and peeling, shortening product service life.4.Corrosion of aluminum fins on condensers and evaporators
Aluminum fins (0.1–0.2mm thick) of air conditioner heat exchangers are prone to pitting corrosion in high salt spray coastal environments, resulting in fin perforation and reduced heat exchange efficiency.5.Insulation degradation of PCB boards in high-humidity environments
For appliances installed in high-humidity areas such as kitchens and bathrooms, moisture absorption and ion contamination reduce insulation resistance of PCB boards and threaten product safety.VCI Solution Value Proposition
Our residue-free, easy-to-clean and high-cleanliness VCI anti-rust solution adapts to the high-volume and fast-paced production characteristics of the home appliance industry, improving assembly yield.
Recommended Solutions & Product Features
VCI Anti-Rust Film / Bag: Used for single-piece or small-batch packaging of compressors and motors. Transparent material facilitates visual inspection on production lines.
VCI Anti-Rust Paper: Laid between stacked stampings and sheet metal parts, with a rust protection period of 3–6 months to meet short-term in-process storage demands.
VCI Anti-Rust Liquid (Water-Based Dry Film Type): Forms a transparent dry film after spraying or soaking. It will not affect subsequent spraying and welding and requires no cleaning.
VCI Emitter: Small slow-release units placed inside compressors or terminal packaging boxes to continuously release vapor anti-rust molecules.
Expected Benefits
Rust rate of compressors and piping parts during production reduced by over 95%
Pre-assembly degreasing and cleaning eliminated, saving production cycle and labor costs
Control failures caused by terminal micro-corrosion greatly decreased
Qualified rate of coating adhesion improved with better quality stability
VCI EP NEW MATERIALS (SHANGHAI) CO., LTD. is a high-tech enterprise which is specialized in the research and development of VCI+ new environmentally-friendly anti-rust materials. Our company is a listed company.
