摘要:
Fluid compositions comprised of a monomer constituent dissolved in a carrier fluid, where the monomer constituent is capable of forming a polymer film directly on rubbing surfaces but is not polymerized in solution, have been found to be effective for reducing ceramic wear.
摘要:
A dry film, low coefficient of friction lubricant for titanium pieces is prepared by mixing together solid lubricant particles, poly(tetrafluoroethylene), a suspending agent, and a curable resin in an evaporable carrier. The mixture is applied to titanium or titanium alloy surfaces that contact each other in service. The carrier is evaporated during a subsequent thermal cure, leaving a lubricating film on the surfaces.
摘要:
This inventions relates to lubricating compositions endowed with high antiwear properties comprising:A) from 100 to 0.1%, but preferably from 10 to 0.5% by weight of a polyether of general formula: ##STR1## where: T, T' either the same or different from each other are inert end groups --CF.sub.2 X, --C.sub.2 F.sub.4 X, --C.sub.3 F.sub.6 X or fluorinated reactive end groups containing carboxylic and/or alcoholic and/or ketonic and/or amidic and/or aminic and/or alkoxylic, at least one of T and T' being one of said reactive end groups;X=F, Cl;m, n, s, p=integers such that the polyether has an average molecular wieght ranging from 1,000 to 100,000, on conditions that, when none of them is zero, s/p is about 10, s/n ranges from 0.5 to 1.5, n/m is about 10, while when n is zero, s/n is about 10 and s/m is about 20, while when s, p are zero, n/m ranges from 0.6 to 2;B) from 0 to 99.9%, but preferably from 90 to 99.5% by weight of a perfluoropolyether having non-reactive end groups.The lubricating compositions, object of the present invention, can be used, with the aid of proper thickening agents, also for the formulation of lubricating greases having high antiwear properties.
摘要:
The present invention describes a pipe sealing compound/adjunct lubricant used to prevent gas or liquid leaks when applied to pipe threads and other connections of the same. The compound relies on silicone oil lubricant(s) and one or more friction modifier(s), viscosity builder(s) and filler material(s). The compound contains a viscoelastic liquid that does not have a curing phase and is resistant to hardening and/or drying. The compound is chemically resistant to a wide variety of liquids and gases, is food safe and can withstand extreme high or low temperatures and precipitous temperature fluctuations. The compound has been found to exhibit an inverse pressure to leak rate phenomena.
摘要:
One aspect of the disclosure relates to a sliding member. The sliding member includes: a first sliding portion having a first lubricant placed between first parts of a first friction sliding mechanism; and a second sliding portion having a second lubricant placed between second parts of a second friction sliding mechanism. The first sliding portion has a lubricant feed port from which the first lubricant is fed, and the second sliding portion has no lubricant feed port from which the second lubricant is fed. The first lubricant contains base oil and an additive. The second lubricant contains base oil and an additive containing conductive carbon. The second lubricant contains a relatively larger amount of conductive carbon than the first lubricant.
摘要:
The present disclosure relates to an automotive slide member including a first slide portion having a first lubricant applied between first portions of a first friction slide mechanism, and a second slide portion having a second lubricant applied between second portions of a second friction slide mechanism. The first slide portion is arranged at a part to be touched by an operator who attaches the automotive slide member to an automobile or a user of the automobile. The second slide portion is arranged at a part that is not touched by the operator who attaches the automotive slide member to the automobile or the user of the automobile. The second lubricant contains a relatively larger amount of conductive carbon than that of the first lubricant.
摘要:
A defoaming agent comprising: a polymer comprising a repeating unit represented by the following general formula (1): where in the general formula (1), X1 is a repeating unit obtainable by polymerization of an ethylenic unsaturated group; Y1 is a side chain comprising a linear or branched polysiloxane structure, the polysiloxane structure comprising a repeating unit represented by the following general formula (2) and having a polymerization degree of 5 to 300; and Z1 is a linking group linking the repeating unit X1 and the side chain Y1; wherein in the general formula (2), R1 and R2 are each independently an organic group having a carbon number of 1 to 18.
摘要:
A drive arrangement for an electrically driven vehicle includes an electric motor that is configured to accelerate the vehicle, the electric motor has a rotor, which is arranged inside a stator having stator windings and is arranged on a rotor shaft. The drive arrangement also includes a drive shaft coupled to a drive wheel of the vehicle, and a shaft coupling that transmits torque output by the rotor shaft such that said torque is conducted to the drive shaft, wherein the shaft coupling has a torque receiving element that receives the torque output by the electric motor, and a torque output element that is mechanically coupled to the torque receiving element and outputs the torque in a direction of the drive shaft. An electrically insulating grease is arranged between the torque receiving element and the torque output element.
摘要:
A method for is disclosed for improving diesel engine wear by lubricating the engine with a composition comprising an oil of lubricating viscosity and based upon the total composition of the lubricating oil composition from about 0.1 to about 2.0 weight % actives of a reaction product of an ethylene-alpha olefin copolymer acylated with maleic anhydride having a number average molecular weight from 5,000 to 120,000 and a hydrocarbyl-substituted poly(oxyalkylene) monoamine represented by the formula: R1—(OCH2CH2)f—(OCH2CHR4)g—NHR5 wherein R1 a hydrocarbyl group having from about 1 to about 35 carbon atoms; R4 is independently hydrogen or methyl for each repeat unit g; R5 is hydrogen or alkyl from 1 to 10 carbon atoms; and f and g are integers such that f+g is from 2 to 45 and wherein R4 is selected to have a plurality of ethylene oxide in the polyoxyalkylene moiety.
摘要:
A two component polyoxymethylene based system is disclosed. The two component system is comprised of a first polymer layer and a second polymer layer. The first polymer layer is comprised of a polyoxymethylene polymer composition comprising a polyoxymethylene polymer and optionally a tribological modifier. The second polymer layer is comprised of a second polymer composition comprising a liquid crystalline polymer, a polyarylene sulfide polymer, or a combination thereof and at least one tribological modifier. The compositions provide polymer articles, such as conveyor components, with improved tribological properties.