Coolants water-soluble

These interim cleaners also support the philosophy of just-in-time cleaning. Chlorinated solvents and alcohols find perhaps their widest application as quick-dip-rinse media. When water-soluble coolants are installed, and solvent tanks become obsolete, they must be replaced by a waterbased rinse system. Total reliance cannot, and should not, be placed on the final cleaning system in view of the fact that specialized solvents cannot be used anymore. Water, while an excellent departiculating agent, is not as effective in removing nonpolar contaminants from surfaces. With chemical contamination emerg-... 

Superedge. [Castrol Industrial East] Water-soluble cutting fluids and coolants. 

Taps for thermosets. Solid carbide taps and standard taps of highspeed steel with flash-chrome-plated or nitrided surfaces are necessary. Taps should be oversize by 0.05 to 0.075 mm and have two or three flutes. Water-soluble lubricants and coolants are preferred. 

Reaming may be used to size holes accurately, but diameters produced may also be affected by thermal expansion. Pilot holes may help when the hole is to be reamed or counterbored. Reamer speeds should approximate those used for drilhng. Reaming can be done dry, but water-soluble coolants will produce better finishes. For thermoplastics it is recommended that a reamer 0.001 to 0.002 in larger than the desired hole size be used. Tolerances as close as 0.0005 in can be held in holes of V -in diameter. 

The boric acid in the primary coolant shows partial dissociation. This results in a pH in the acid range which is undesirable because of the unfavorable impact on metal release rates and selective corrosion. Thus, for compensation of the pH, an alkalizing substance has to be added. Out of the number of water-soluble caustics, LiOH is mostly used since Li is produced in any case by an (n, a) reaction from B and, therefore, analysis of the concentration of the alkalizing agent present in the coolant can be performed by one single measurement. On the other hand, in order to minimize production in the primary coolant, isotopically pure Li has to be used (see Section 4.2.3.). 

The kinetics of chemical interactions between fission product vapor and aerosols is mainly controlled by gas phase mass transport, by the kinetics of the chemical reaction, and by mass transport in the condensed phase. Another factor potentially influencing the kinetics of vapor deposition is that the heat liberated by condensation or by chemical reaction of vapor with aerosol must be disposed of. Because of their small masses, aerosol particles have only limited capacity for conducting away this heat, compared with the structures within the reactor coolant system. This problem may arise particularly in the deposition of water vapor onto aerosol particles which have been previously covered by hygroscopic or water-soluble compounds such as CsOH. 

During grinding, the sample surface should be kept cool. Cooling is usually provided by use of water, alcohol, or other organic compounds. Nonaqueous coolants are used to inhibit leaching of water soluble compounds from the sample or oxide scales. 

This is not always so. The presence of water vapor can affect the transparency of the vapor phase, making it appear cloudy. Some refer to this as "ghost vapor." The source of the water is not the normal intrusion of tramp impurities (Chapter 3.5.11, Footnote 57), rather it is water released as water-soluble coolants and lubricants are cleaned as soils from surfaces. In a short time, this water is vaporized, condensed, and removed in the water separator (Chapter 3.6.11, Figures 4.40 and 4.41), and the vapor phase returns to being transparent. 

ALKAZINE C increases the lubricity of water soluble cutting oils and synthetic coolants. 

Carraher and Schroeder accomplished the synthesis of uranyl polyesters utilizing both the aqueous interfacial and aqueous solution condensation systems. The aqueous solution system is preferred because of the added effort and cost introduced when employing the interfacial system. Further the aqueous solution system is a more natural system in that a) water is often employed as a coolant in nuclear reactors, b) water is the chief agent for uranium,in the form of the water soluble uranyl ion,movement in mine dumps and uranium rich earth surfaces and, c) water is involved in many of the commercially utilized uranium recovery procedures. 

These are found primarily in water-soluble coolants. 

Radioactive isotopes accirmulate in the reactor coolant during operation. Some of these isotopes are gaseous or volatile most are soluble or suspended in reactor coolant water. During a LOC A, these accumulated isotopes are released into the upper containment, thereby creating a radiation source. This source can be strong enough to be a hazard to those outside the containment. 

Soluble cutting oils are mineral oils containing 10 to 50% emulsifiers such as sodium petroleum sulfonates, sodium naphthenates, or sodium rosinates. These compounds allow emulsification of 5 parts or less of the oil in 95 parts or more of water. The emulsion acts as a coolant and, to some extent, as a lubricant (11). 

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