I. Core Functions and Industrial Protection Value
Caterpillar Anti-rust Water 217-0616, as a multi-scenario metal protection solution, achieves three core values through "multiple protection mechanisms + full life cycle adaptation"
Full-scenario corrosion resistance
Acid-base neutralization capacity: Effectively neutralize acidic pollutants in industrial environments (such as SO₂, NOx), stabilize the pH value of metal surfaces within the safe range of 6.5 to 7.5, and inhibit electrochemical corrosion.
Humidity control: By using hygroscopic components (such as glycerin), the humidity on the metal surface is reduced to below 40%, blocking the chemical reaction chain of the three elements of rust (metal, oxygen, and water).
Equipment system-level protection
Engine cooling system: Compatible with ethylene glycol antifreeze, it maintains stable performance within a wide temperature range of -35 ℃ to 120℃, preventing scale deposition and cavitation damage to the cylinder block and radiator.
Hydraulic pipeline protection: Penetrates into concealed areas such as threaded interfaces and welds, forming an elastic protective film with a thickness of 0.01-0.03mm, which can withstand the erosion of hydraulic oil and mechanical vibration.
Environmental friendliness and ease of operation
Phosphorus-free and nitrate-free formula, in compliance with the EU REACH regulation and the US EPA standards, reduces wastewater treatment costs by 50%.
It can be directly sprayed, soaked or mixed with coolant for use, without additional degreasing treatment, and the construction efficiency is increased by 30%.
Ii. Key Technological Advantages
Nano-film formation technology
The active ingredients (such as benzotriazole derivatives) are adsorbed onto the metal surface through intermolecular forces, forming a three-dimensional network structure protective layer. The adhesion reaches 5B grade (hundred-grid test), and the scrub resistance exceeds 1000 times.
Collaborative corrosion inhibition mechanism
By compounding organic amines (such as triethanolamine) with inorganic corrosion inhibitors (such as molybdate), a Fe₃O₄ passivation film is formed on the surface of steel, and an Al₂O₃ protective layer is generated on the surface of aluminum, achieving synchronous protection of multiple metals.
Hard water resistance:
By using chelating agents (such as EDTA) to stabilize water quality, it can still maintain over 98% of its anti-rust activity in hard water with a hardness of ≤200ppm, avoiding the problem of traditional anti-rust water becoming ineffective due to calcium and magnesium ion precipitation.
Iii. Typical Application Scenarios and Cases
Full-cycle protection for construction machinery
New machine storage: A certain loader manufacturer soaked the piston rod of the oil cylinder in 217-0616 before export. After 72 hours of salt spray testing, there was no rust. Compared with the traditional anti-rust oil solution, the cost was reduced by 25%, and no subsequent cleaning was required.
Maintenance of in-use equipment: The hydraulic system of a certain mining excavator was regularly added with 217-0616. Within six months, the corrosion rate of the inner wall of the pipeline dropped from 0.12mm/a to 0.03mm/a, and the hydraulic oil replacement cycle was extended to 2000 hours.
Deep protection of power equipment
Major overhaul of generator sets: After the cooling system of the G3516 unit in a certain data center adopted 217-0616, the density of cavitation pits in the cylinder liner decreased from 5 /cm² to 0.8 /cm², and the major overhaul interval of the engine was extended from 8,000 hours to 12,000 hours.
Storage of backup equipment: A certain power plant immersed idle turbine blades in a diluted solution of 217-0616 (with a concentration of 10%). After 18 months, when they were put into use, there was no visible rust on the surface, which saved 70% of the maintenance time compared with the oil seal solution.
Iv. Suggestions for Use and Maintenance
Pre-treatment specification
Surface cleaning: Use Caterpillar's dedicated metal cleaner (such as 3E-9902) to remove oil stains and welding slag, ensuring the surface roughness Ra≤3.2μm to enhance the adhesion of the rust inhibitor.
Concentration adaptation: For short-term rust prevention (≤3 months), it can be diluted to 5%-8% for use. For long-term protection, it is recommended to spray or soak the original solution (concentration ≥20%).
Application scenario optimization
High humidity environment: When used in conjunction with a dehumidifier (humidity ≤50%), the anti-rust period can be extended to 18 months.
Marine climate: Apply supplementary spraying once a month to form a multi-layer protective film, enhancing the salt spray resistance to 96 hours without red rust.
Waste liquid treatment
Before discharge, neutralizing agents (such as sodium carbonate) were used to adjust the pH to 7-9, and flocculants (such as PAC) were combined to precipitate metal ions. The treated water quality met the third-level discharge standard of GB 8978-1996.
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