Inadequate housekeeping practices, particularly in centralised systems and CNCs, can exacerbate these issues, making it crucial to address them appropriately to maintain a safe and efficient working environment.
Over the years, biocides have been widely employed to control the growth of microorganisms. Research has demonstrated that certain biocides are effective against specific types of bacteria, while others may not be as effective. For instance, triazine-based products have proven to be a cost-effective solution for combating certain bacterial growth, but they may not be effective against sulfate-reducing bacteria (SRBs).
Given this challenge, a common modern approach is to use a combination of biocide chemistries to provide comprehensive protection against various types of micro-organisms. However, it is important to note that within the European Union, the use of biocides is strictly regulated by legislation. Chemicals can only be used if they appear on the TP13 list of approved products, which includes their associated EC and CAS numbers. This regulatory framework ensures that the use of biocides complies with safety and environmental standards.
While water-based solutions excel in cooling, oil-based fluids offer superior lubricity and extreme pressure protection. This is why demanding operations like tapping and deep hole boring often rely on straight oils. However, advancements in anti-wear and extreme pressure additives have led to the rise of semi-synthetic fluids.
Traditional extreme pressure additives, such as chloro- paraffins, have been replaced by more advanced options like polyol esters and sulphur-phosphorus components. Additionally, overbased sulphonates, known as ‘passive extreme pressure’ or PEP agents, are being used to enhance wear protection. As formulators continue to improve the anti-wear and lubricity properties of these additives, the industry is witnessing a shift away from straight oils and an increased adoption of soluble oils and semi-synthetic fluids.
Looking ahead, legislation will play a vital role in driving the development and selection of metalworking fluids. One specific concern is the formation of mist, which can pose problems on safety screens by obstructing visibility for operators. Furthermore, airborne droplets from mist can be inhaled, posing a health hazard as they can enter the respiratory system. Addressing these mist-related issues will be a key focus in the ongoing evolution of metalworking fluid technology.
So many demands are placed on metalworking fluids. We can be sure that, along with other areas of the lubrication world, tougher legislation will continue to drive change and end users will demand enhanced performance from the cutting fluids of tomorrow.
https://go.lubrizol.com/dmn584j2
Another crucial factor to consider when choosing a cutting fluid is the level of wear protection it provides at the interface between the tool and the workpiece.
The Lubrizol Corporation (“Lubrizol”) hopes that you have found the information provided helpful. The information provided herein is for informational purposes only and you are solely responsible for making your own assessment of appropriate use of the information. Lubrizol does not guarantee how any materials referenced herein will perform in combination with other substances, in any methods, conditions, or processes, with any equipment, or in non-laboratory environments.
LUBE MAGAZINE NO.181 JUNE 2024 23
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