1-20 of 29 Search Results for

emulsification

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001222
EISBN: 978-1-62708-170-2
..., displacement, emulsification and dispersion, and metal oxide dissolution. The article concludes with information of the safety and environmental considerations in the usage of alkaline cleaners. Selected References Selected References • Bard G. , Cleaning and Surface Preparation , Met. Finish...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006440
EISBN: 978-1-62708-190-0
... methods are described subsequently. Water-Washable Penetrant (Method A) Water-washable penetrant (method A) is designed so that the penetrant is directly water washable from the surface of the workpiece; it does not require a separate emulsification step, as does the postemulsifiable penetrant...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003231
EISBN: 978-1-62708-199-3
... it spontaneously emulsifiable in water. The rate at which it diffuses into the penetrant establishes its emulsification time. Because the emulsifier is fast acting, the rinse operation should be done quickly to avoid over emulsification. Water-base emulsifiers usually are supplied as liquid concentrates...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003213
EISBN: 978-1-62708-199-3
... cleaned metal surface optimizes the performance of a coating that is subsequently applied by conversion coating, electroplating, painting, or other operations. The main chemical methods of soil removal by an alkaline cleaner are saponification, displacement, emulsification and dispersion, and metal oxide...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003231
EISBN: 978-1-62708-199-3
... of penetrant and proper penetration (dwell) time. The emulsifier makes the penetrant soluble in water so the excess penetrant can be removed by water rinsing. Therefore, the emulsification time must be carefully controlled so the surface penetrant becomes water-soluble but penetrant in the flaws does...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003213
EISBN: 978-1-62708-199-3
... water rinse. A properly cleaned metal surface optimizes the performance of a coating that is subsequently applied by conversion coating, electroplating, painting, or other operations. The main chemical methods of soil removal by an alkaline cleaner are saponification, displacement, emulsification...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006039
EISBN: 978-1-62708-172-6
.... Environmental Protection Agency (EPA) has regulated the use of asphalt cutbacks as follows ( Ref 4 ): Asphalt can be mixed with water to turn the asphalt/bitumen into an emulsion. Asphalt emulsions are thixotropic, enabling the application of heavy coats without subsequent flow or sagging. Emulsification...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001269
EISBN: 978-1-62708-170-2
.... Alkaline cleaners are blends of various inorganic salts with small amounts of inhibitors and surfactants to promote different cleaning mechanisms, such as saponification and emulsification. Saponification refers to the chemical action whereby an oil is converted to a water-soluble soap. This reaction...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001273
EISBN: 978-1-62708-170-2
... must be prohibited close to trichloroethylene degreasing plants to avoid the risk of phosgene poisoning. Alkaline detergents act be penetrating the contaminant layer and removing it by emulsification, saponification, or flocculation. Appropriate commercial salts are available in powder or crystal...
Series: ASM Handbook
Volume: 4A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v04a.a0005777
EISBN: 978-1-62708-165-8
... immersion, spray cycles Removes oil and grease by saponification or emulsification Degree of cleanliness depends largely on thorough mechanical agitation Mix of ingredients such as surfactants, sequestering agents, saponifiers, emulsifiers, and chelators Also with various forms...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001224
EISBN: 978-1-62708-170-2
... are deodorized kerosine and mineral seal oil. (e) Most soaps are based on rosin or other short-chain fatty acids, saponified with organic amines or potassium hydroxide. (f) Low molecular weight petroleum sulfonates (mahogany sulfonates) are used for good emulsification plus some rust protection. High...
Series: ASM Handbook
Volume: 14B
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v14b.a0005159
EISBN: 978-1-62708-186-3
... tension, and thereby promote emulsification. The emulsification process is that technique in which oil globules that are larger than colloidal size are dispersed in water. Petroleum oils, animal and vegetable oils, synthetic oils, and waxes each have an HLB value at which they form the most stable...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001324
EISBN: 978-1-62708-170-2
.... If the degreaser has a hand spray wand, this can still be used for more aggressive cleaning (again, this would not be recommended for some alkaline cleaners, which can foam). For alkaline cleaners that reject oils (as opposed to emulsification-type cleaners), some type of oil removal device will be necessary...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002387
EISBN: 978-1-62708-193-1
... of corrosion activity, filmer inhibitor emulsification tendencies, the pH of the water, and the H 2 S concentration. Inhibitors that emulsify hydrocarbon badly tend to increase the level of metal corrosion products found in hydrocarbon streams. In most units, the principal corrosion product is a metal sulfide...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001221
EISBN: 978-1-62708-170-2
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006071
EISBN: 978-1-62708-172-6
... by minimizing exposure to organic solvents. Accordingly, there is increasing emphasis to formulate water-based alkyds. There are a number of ways to manufacture water-based alkyds. The most common are direct emulsification of the alkyd resin in water with carboxylic acid groups of the resin and oils...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003189
EISBN: 978-1-62708-199-3
... fluids, instead of plain water, should be used for preparing or for altering the mix concentration. Water used in preparing emulsions is very important. Hard water containing various minerals and salts often hinders or impedes emulsification. It is not uncommon for emulsions made with hard water...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002128
EISBN: 978-1-62708-188-7
.... However, in some systems in which mixing of the oil and the water base occurs, partial emulsification of the oil may also take place. Aeration devices are used to promote the formation of tramp oil, which then floats to the surface. Rotating disks, which are wetted by the oil and/or belts of stainless...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006429
EISBN: 978-1-62708-192-4
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001272
EISBN: 978-1-62708-170-2