768 Index
friction modi ers (contd.)
forging process, 173
FZG Gear Lubrication method, 187
incline plane method, 187
liter engine dynamometer tests, 187
load-bearing performance, 174
lubrication of sliding surface friction, 189
metals deformation, 173
organic, 193–210
applications of, 195
automatic transmission uids, 195
automotive crankcase, 195
limited slip gear oils, 195
multipurpose tractor uids, 195
slideway lubricants, 195
chemistry of, 200–204
amides, 200
oleylmide, 203–204
amines, 200
carboxylic acids, 200, 202
fatty acids, 200, 202
partial esters, 200, 202
chain length, 201
imides, 200
metallo-organic compounds, 202–203
organic polymers, 200
phosphonic acid derivatives, 200
phosphoric derivatives, 200
polarity of, 201
mode of action, 200
mechanism of action, 199, 203
formation of adsorbed layers, 199–201
formation of in-situ polymers, 202
formation of reactive layers, 200
performance, 204
orientation of solid particles, 178
oxidation of, 173
particle sedimentation, 183
particle size, 177, 184, 185, 188, 191
Plint Reciprocating method, 187
plastic ow, 175
preparation for lubricant application, 182
requirements of, 173
Shell 4-Ball EP method, 187, 188
solid lubricants, 173
types of
boron nitride, 174, 180, 181, 189, 190
high-temperature resistance of, 180, 192, 193
preparation of, 180
properties of, 180, 181
structure of, 180, 181
thermal conductivity of, 181
calcium uoride, 179
cerium uoride, 174
graphite, 174, 187–189, 191–193
carbon content of, 177, 178
coarse graphite particle-size distribution, 177
coef cients of friction, 177, 191
conditions of use, 175, 193
lubrication using, 178
natural, 177
particle size distribution of colloidal, 177
secondary synthetic, 178
sources of, 177
structure of, 176
synthetic, 178
thermal conductivity of, 179
molybdenum disul de, 174, 187–190
advantages of, 180
characteristics of, 179
limitations of, 175
properties of, 175, 179
structure of, 179
thermal conductivity of, 179
use in vacuum, 180
polytetra uoroethylene (PTFE), 174, 181, 182,
187–190
applications of, 182
coef cient of friction, 182
cold weld of, 182
grades of, 181
physical properties of, 182
talc, 174
tungsten disul de, 174
wear protection, 189
wear protection from, 174
worm gear dynamometer tests, 186
yield strength, 174
FTM 791 B, 590
fuel economy, 187
with colloidal graphite, 187
with MoS
2
, 187
full- lm lubrication, 75, 76
FZG test (DIN 51354), 89, 97, 241
G
gear oils, 1, 4
GF-3 speci cation, 33, 59, 60
GF-4 speci cation, 33, 38, 59
greases, 4, 585–605
additives used in, 4, 14, 15, 585–605
effects of individual additives, 600–605
environmentally friendly, 598–599
extreme pressure/antiwear, 596
ammonium salts of phosphate esters, 597
borate esters, 597
chlorinated paraf ns, 596
disul des, 597
high-molecular weight complex esters, 597
metal dialkyldithiophosphates, 597
metal dithiocarbamates, 597
metal naphthenates, 597
metal soaps, 597
phosphate esters, 597
sul des, 597
sulfurized ole ns, 596
thiophosphate esters, 597
food-grade greases, 602, 603
metal deactivators, 598
benzotriaazoles, 598
2,5-dimercapto-1,3,4-thiadiazole, derivatives of,
598
disalicylidene-propanediamine, 598
organic complexes, 598
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