Qingdao Jinhecheng Machinery Co., Ltd. officially launches an optimized composite surface treatment process, exclusively developed for aluminum alloy coating rollers used on coating machines. This innovative technology effectively solves the industry technical bottleneck that ordinary aluminum alloy materials cannot be directly chrome-plated, providing a more cost-effective and high-performance roller component solution for the coating industry.
Industry Technical Pain Point
Due to the physical and chemical properties of aluminum alloy, direct hard chrome plating on the aluminum surface is technically unfeasible. Direct electroplating will cause unstable adhesion, easy peeling of the coating, oxidation and other defects. For a long time, most coating machine manufacturers can only choose expensive stainless steel rollers or heavy solid steel rollers, which increases equipment operating costs and overall load burden.
New Composite Plating Process Principle
To break through the above limitations, Qingdao Jinhecheng Machinery Co., Ltd. adopts a two-stage composite plating process: pre-plating a uniform nickel base layer on the polished aluminum alloy substrate, then implementing hard chrome plating treatment on the nickel layer. The nickel intermediate layer perfectly connects the aluminum substrate and the chrome coating, solving the core problem of poor bonding between aluminum and chrome.
Process & Product Advantages
Stable Coating Performance: The integrated composite coating features strong adhesion, no peeling or cracking during long-term high-speed rotation and frequent friction.
Lightweight & High Efficiency: Compared with traditional steel rollers, aluminum alloy base reduces overall weight, lowers equipment driving load and energy consumption.
Superior Usability: The outer chrome layer retains wear resistance, corrosion resistance and ultra-smooth surface finish, fully meeting the high-precision coating production requirements.
Cost Optimization: It balances lightweight performance and production cost, an ideal alternative to high-priced stainless steel rollers.
Application Scope
This new aluminum alloy nickel-chromium composite roller is specially customized for all types of coating machines, suitable for surface coating, film laminating, glue spreading and other working procedures in packaging, new energy materials, flexible circuit and printing industries. We support customized production according to customer drawings to match different models of coating equipment.
