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compounded lubricants

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Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390100
EISBN: 978-1-62708-459-8
... Abstract This chapter describes the properties and attributes of various classes of metalworking lubricants, including mineral oils; natural oils, fats, derivatives, and soaps; synthetic fluids (olefins, esters, polyglycols, ionic liquids); compounded lubricants (oils, greases, fats); aqueous...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390064
EISBN: 978-1-62708-459-8
... compounds, have low solubility in the base fluid. The solution is to provide the phosphorus in a soluble carrier molecule, which degrades at elevated temperatures. The phosphorus then separates from the lubricant and plates a film onto the metal surface, usually in the form of phosphorus soaps. Chemical...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290035
EISBN: 978-1-62708-319-5
... Abstract Generally, binders consist of at least three ingredients: a backbone to provide strength (compounds such as polyethylene, polypropylene, ethylene vinyl acetate, and polystyrene); a filler, such as polyacetal and paraffin wax, to occupy space between particles; and additives...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2005
DOI: 10.31399/asm.tb.faesmch.t51270095
EISBN: 978-1-62708-301-0
... to overheating, possibly as a result of misalignment compounded by insufficient lubrication and high speeds. aircraft engine bearings high-temperature wear microstructural analysis visual examination Summary In an aircraft engine, two center support ball bearings failed. In one, the inner ring...
Image
Published: 30 September 2023
Figure 11.38: Formation of well-lubricated films in repeated indentation of stainless steel plates with anvils of different composition and with a compounded mineral oil lubricant. More
Image
Published: 30 September 2023
Figure 11.29: Interface pressure p , interface shear strength τ i , and coefficient of friction μ obtained by the oblique pin technique in upsetting of aluminum billets ( d 0 /h 0 = 4) to 10% reduction. (a) Dry platens; (b) lubricated with a compounded mineral oil; (c) lubricated More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040067
EISBN: 978-1-62708-300-3
... Graphite in aqueous solution Titanium, nickel, and tungsten Warm forging Severe MoS 2 compounds Graphite compounds Hot forging Severe Graphite compounds Most severe Glass in aqueous slurry or powder Source: [ Schey, 1983 ] 7.8 Methods for Evaluation of Lubricants The cost...
Image
Published: 30 September 2023
Figure 6.11: Schematic illustration of the effectiveness of compounded oil-base lubricant based on additive and temperature. See also Fig. 5.12 . More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900201
EISBN: 978-1-62708-350-8
...-bearing microstructure, the outermost identified as the compound zone and the subjacent layer called the diffusion zone. Each of the zones contributes to improving performance by enhancing specific engineering properties such as wear resistance, lubricity, corrosion resistance, and fatigue strength. From...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1985
DOI: 10.31399/asm.tb.sagf.t63420027
EISBN: 978-1-62708-452-9
..., salt, or mud), anti-freeze compounds, liquid coolant compounds, or even other types of grease or oil added inadvertently. These contaminants will cause corrosion and general deterioration of both the lubricant and the metallic surfaces. Sand and dust particles introduced by atmosphere or water...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300391
EISBN: 978-1-62708-323-2
... 14.3 shows some of the solid-film lubricants in common use. The most commonly used solid lubricants are intercalation compounds, such as molybdenum disulfide (MoS 2 ) and graphite; both have been used for centuries. What used to be known as lead pencils (when handwriting was used) are really graphite...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2005
DOI: 10.31399/asm.tb.gmpm.t51250077
EISBN: 978-1-62708-345-4
...%), and MoS 2 (up to 15%). Phenolics Phenolics are injection molded resins compounded with various mineral and glass fillers, glass fibers, and lubricants such as PTFE and graphite. Phenolics are used in applications requiring dimensional stability improved heat resistance. Laminated Phenolic...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390241
EISBN: 978-1-62708-459-8
... to cause yielding of steel wire. Since the soap is also an effective boundary lubricant and can be compounded with fillers, difficulties on start-up are mitigated. The inlet is short (12 to 25 mm), and the clearance is more generous (0.13 to 0.5 mm). More important than draw force is die wear. In drawing...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390389
EISBN: 978-1-62708-459-8
..., most lubricants are compounded; chlorine compounded lubricants have dramatically reduced friction by an order of magnitude in as few as 100 strokes [ 33 ]. However, more environmentally friendly lubricant formulations based on Ca, P, and S additives have been demonstrated [ 31 ]. Environmental concerns...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390039
EISBN: 978-1-62708-459-8
... of the lubricant, only two-body wear takes place. Oxides and intermetallic compounds can be as hard as the constituents of the die or cutting tool; therefore, abrasive wear becomes a competition between die and workpiece whenever the lubricant fails to sufficiently separate the interface. Particles embedded...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120085
EISBN: 978-1-62708-269-3
... orthophosphate (K 3 PO 4 ) is widely used as a grinding lubricant. It is applied as a flood at both the entrance and exit side of the contact line. Water-soluble oils, particularly highly chlorinated and sulfochlorinated oils, also have been successful as lubricants. These compounds should be used with care...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390001
EISBN: 978-1-62708-459-8
... of copper and copper-base alloys were relatively modest and, until well into the 20th century, an occasional smear with a lubricant of jealously guarded composition was sufficient. The lubricant was usually based on mineral oils (available in quantity since 1860) and compounded with animal and vegetable...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.t59390325
EISBN: 978-1-62708-459-8
... Abstract Forging is a deformation process achieved through the application of compressive stresses. During the stroke, pressures and velocities are continuously changing and the initial lubricant supply must suffice for the duration of the operation. Lubricant residues and pickup products also...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 September 2023
DOI: 10.31399/asm.tb.stmflw.9781627084598
EISBN: 978-1-62708-459-8
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900031
EISBN: 978-1-62708-350-8
... Abstract Formation of the nitrided case begins through a series of nucleated growth areas on the steel surface. These nucleating growth areas will eventually become what is known as the compound layer or, more commonly, the white layer. This chapter discusses the influence of carbon...