【Keywords】: multi‑material mixed‑line cleaning agent, discoloration‑free aluminum‑part cleaning, copper‑part cleaning agent, room‑temperature cleaning agent, rust‑preventive cleaning agent
【Abstract】: Automotive‑component production lines frequently process mixed materials including steel, cast iron, aluminum and copper. Improper cleaning‑agent selection will cause corrosion and discoloration on aluminum‑copper parts as well as rusting on ferrous workpieces. Universal weakly‑alkaline cleaning agents such as CP‑20LCAL, usable at room temperature, non‑corrosive to non‑ferrous metals and integrated with short‑term rust‑protection performance, provide a reliable option for mixed‑line manufacturing.
Three Major Challenges for Multi‑Material Mixed‑Line Cleaning
Large material‑property divergence: One single production line handles cast‑iron cylinder blocks, aluminum‑alloy cylinder heads, steel shafts and copper bushings simultaneously. Different materials impose conflicting requirements on cleaning agents.
Corrosion & discoloration risks: Many cleaners gain stronger degreasing power under heating yet corrode non‑ferrous metals such as aluminum and copper, resulting in dark or mottled workpiece surfaces. It may cause cosmetic defects or even compromise assembly precision in severe cases.
Inter‑process rusting: Cleaned steel and cast‑iron parts tend to oxidize and rust during transfer and temporary storage. Separate anti‑rust treatment extends workflow and raises costs.
Therefore, mixed‑line cleaning agents shall satisfy three requirements simultaneously: room‑temperature applicability, non‑corrosive & discoloration‑free performance for non‑ferrous metals, and short‑term rust protection for ferrous parts.
Core Features of CP‑20LCAL Universal Cleaning Agent
CP‑20LCAL is a weakly‑alkaline water‑based cleaning agent with rust‑inhibiting performance, dominated by organic components and known as a “universal” cleaning grade:
Ready‑to‑use at room temperature: Cleaning and rust‑protection performance are available without mandatory heating, saving energy and lowering consumption. Its performance is not restricted by cleaning temperature.
Non‑ferrous‑metal friendly: No corrosion or discoloration occurs on aluminum and copper even under heated cleaning conditions. Mixed‑material workpieces can be safely cleaned in the same bath.
Excellent short‑term rust prevention: Delivers outstanding inter‑process rust‑protection effect for steel and cast‑iron parts, eliminating independent anti‑rust procedures.
Stable low‑foam property: Low foam level immune to temperature and pressure fluctuations. Compatible with immersion, spraying and ultrasonic cleaning processes.
White‑residue‑free: Organic‑component‑dominated formula leaves clean surfaces after blow‑drying and imposes no adverse impact on subsequent lubrication operations.
Applicable scenarios: Mixed‑line cleaning for steel, cast‑iron, aluminum and copper workpieces in automotive‑component manufacturing; precision cleaning processes sensitive to corrosion and discoloration of non‑ferrous metals.
Process Recommendations for Multi‑Material Mixed‑Line Cleaning
Control working concentration within 3%‑10%; prepare initial solution at 5% and adjust according to contamination severity.
Operate at room‑temperature by default. Heat to 50‑60 °C for higher degreasing efficiency for heavily soiled workpieces without worrying about aluminum‑copper corrosion and discoloration.
Ultrasonic cleaning is recommended for parts with complex structures with cleaning duration of 3‑5 minutes.
Rinse and blow‑dry workpieces promptly after cleaning. Steel and cast‑iron parts can be safely transferred relying on the product’s built‑in short‑term rust‑protection capacity.
For longer rust‑protection duration, add water‑soluble rust inhibitor PP‑350 for reinforced anti‑rust performance.
FAQ
Q: Will aluminum and copper parts suffer corrosion or discoloration during mixed‑line cleaning?
A: Mixed‑line cleaning can be safely performed with weakly‑alkaline cleaning agents non‑corrosive to non‑ferrous metals. CP‑20LCAL causes no corrosion or discoloration to aluminum and copper even under heated conditions, and is safe for same‑line cleaning of steel, cast‑iron, aluminum and copper.
Q: Can machining oil be thoroughly removed with room‑temperature cleaning?
A: Yes. CP‑20LCAL provides both cleaning and rust‑protection performance at room temperature and is not limited by temperature conditions. Heating brings faster degreasing without impairing its compatibility with non‑ferrous metals.
Q: Frequent solution replacement is troublesome for mixed‑production lines. Is there any solution?
A: Adopt universal cleaning agent such as CP‑20LCAL. One cleaning line covers steel, cast‑iron, aluminum, copper and other materials. Frequent bath change is avoided, simplifying on‑site management and cutting overall costs.
Q: How to prevent inter‑process rusting for cleaned steel parts?
A: CP‑20LCAL has built‑in short‑term rust‑protection performance. Steel and cast‑iron parts obtain inter‑process anti‑rust protection right after cleaning and blow‑drying. Use water‑based rust inhibitor PP‑350 for extended rust‑protection requirements.
