Cutting fluids grinding

Kelkut [Witco] Cutting fluids, grinding coolants, grinding oils. 

Poly(alkylene glycol)s are also used as lubricity additives ia water-based synthetic cutting and grinding fluids (36), and ia aqueous metalworking fluids. Under the high frictional heating at the tool or die contact with the workpiece, the polyalkylene glycol comes out of solution ia fine droplets which coat the hot metal surfaces. 

The cutting fluid has to cool and lubricate without allowing grinding debris to clog (or load) the surface of the wheel. This could produce a burnished surface rather than a ground one - which might appear satisfactory but would be metallurgically unsound. 

Efl49 Nitrosamines in synthetic metal cutting and grinding fluids. 

Provision, use and maintenance of hygiene facilities for work with asbestos insulation and coatings Nitrosamines in synthetic metal cutting and grinding fluids (withdrawn)... 

Miscellaneous. Volatile nitrosamines can escape into the atmosphere from a variety of other sources. Automobile and diesel engine exhausts may contain N-nitroso compounds, including NDMA at trace levels (5). Nitrosodiethanolamine (NDEIA) is a likely air contaminant in machine shops which use cutting and grinding fluids contaminated with high concentrations of NDElA (10). Several herbicides, known to contain appreciable levels of volatile nitrosamines (9), are applied as aqueous sprays it is likely that worker exposure via inhalation may be appreciable. 

V-Nitrosodiethanolamine has been found in many complex matrices such as cutting and grinding fluids and cosmetics. Analysis for V-nitrosodiethanolamine is complicated by the matrix and a clean-up technique with derivatization is typically required before quantitation of the analyte to achieve adequate sensitivity and selectivity. Ammonium sulfamate may be added to the sample to prevent the artifactual formation ofV-nitrosamines. Derivatives of V-nitrosodiethanolamine have been prepared by acylation, trifluoroacylation, trimethylsilylation and methylation. The derivatives have been analysed by gas chromatography using flame ionization and mass spectro-metric detectors (Occupational Safety and Health Administration, 1990). 

Bannerjee, J.K., Some Effects of Molybdenum Disulphide (MoSj) - Based Cutting Fluids on the Workpiece Surface Finish in Grinding and Conventional Machining Processes, Proc. Conf. Wear of Materials 1981, New York, (1981), p. 496. 

Use Lubricants for metal-cutting fluids, high-tem-perature grinding, cold-rolling of steel. 

Lubrhophos. [Rhone-Poulenc Surf. Rhone-Poulenc France] Phosphate esters lubricant, rust inhibit , emulsifier, pressure additive for lubricating and roUii% (, hydraulic, cutting and grinding fluids. 

Normal force as a function of material removal for different grinding wheel specifications and cutting fluids. 

Spur, G. Briicher, Th. Optimization in the cutting fluids system for grinding of advanced ceramics. Vortrag und Tagungsberichtsband, First International Machining and Grinding Conference, Dearborn, USA, 12-14 September 1995. 

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