Complex terms – simply explained
Fluxes and coolants – Not the best of friends
Publication year: 2023
Aqueous coolants are extremely important in ensuring the safe operation of engines, converters and many other systems. But during use, their condition changes due to ageing and contamination. In the past, examinations using handheld devices and measuring strips were carried out on site to check antifreeze and heat transfer properties and to find signs of degrading basic protection additives.
Monitoring with OELCHECK all-inclusive analyses goes far beyond this and ensures a high level of safety when using coolants. This is because, provided that regular analyses are carried out, we can now not only detect existing corrosion, but also interpret indicators of its future formation and warn of impending damage. The fluxes used when soldering the coolers also continue to play a key role here!
Engines, converters and many other technical components need to be protected against overheating. The heat lost during operation is dissipated, thereby cooling the components. This is done with the help of air, water, cold mixtures with special salt compounds or coolants, which in most cases are based on glycol. The latter are not just used for radiators in motor vehicles. Aqueous glycol-based coolants are also used in cooling systems for wind turbines, locomotives, stationary engines (such as in energy generation using biogas) or in power supply converters.
- Acids in the oil
- AdBlue – a cleaning agent with no residual alcohol
- Air and foam in oil
- Air-release properties & foaming tendency
- Atomic Emission Spectroscopy (AES)
- Cloudpoint & Pourpoint
- Cold Filter Plugging Point (CFPP)
- Density temperature profile (DTP)
- Dispersancy
- Filter deposits
- Fire-resistant HFC hydraulic fluids
- Fluxes and coolants – Not the best of friends
- Glycol determination
- Increased oil consumption
- IR Index
- Limit values at OELCHECK
- Low SAPS or low ash
- Lubricants in the food industry
- Nitration
- NN, AN and BN
- Oil aging
- Oil condition
- Oxidation
- Oxidation index – Modern lubricants age differently
- Oxidationsinhibitoren (Antioxidants) – Elixirs of life for modern lubricants
- Phenolic inhibitor
- Pour point and solidifying point
- PQ index
- Refractive index
- Strong Acid Number
- Sulfation
- Synthetic lubricants – types, properties and applications
- Trend analyses - An investment in the future
- VI - The viscosity index
- Viscosity
- Viscosity-temperature profile (VTP)
- Wear metals in lubricants