Disclosed herein is a method for pretreatment of a metallic substrate for a subsequent metal cold forming process, said method , and contacting at least one surface of the substrate with an aqueous lubricant composition (B). The aqueous lubricant composition (B) has a pH value in the range of from 0.1 to 6.0, and includes water in an amount of at least 40 wt.-%, based on the total weight of the composition (B), at least one film-forming polymer, at least one wax, at least one corrosion inhibitor , and oxalate and/or phosphate anions. Further disclosed herein are a pretreated metallic substrate obtainable by the aforementioned inventive method, a method of cold forming of a metallic substrate including a step of subjecting the inventive pretreated metallic substrate to a cold forming process, an aqueous lubricant composition (B), and a master batch for preparing the aqueous composition (B).

A laminated sliding member 1 includes a base body 4 having one flat surface 3 which is circular in a plan view and a solid lubricant layer 5 adhered to the flat surface 3 of the base body 4 and having a sliding surface 2 which is circular in a plan view.

A lubricating composition which, when used with a device for clamping an article, such as a chuck, produces excellent lubricating properties whilst remaining strongly adhered to metal parts in a clamping mechanism of the device and showing enhanced chemical and physical resistance to fluids such as cutting fluids.

A lubricating composition which, when used with a device for clamping an article, such as a chuck, produces excellent lubricating properties whilst remaining strongly adhered to metal parts in a clamping mechanism of the device and showing enhanced chemical and physical resistance to fluids such as cutting fluids.

The present disclosure is directed to an aqueous lubricating composition comprising, based on the weight of the composition: from 1 to 20 wt. % of a) at least one water-soluble inorganic salt, said inorganic salt or salts being in a dissolved state; b) at least one particulate solid lubricant; from 0.1 to 5 wt. % of c) at least one rheological control agent; from 0.1 to 5 wt. % of d) at least one base; and, from 0.1 to 5 wt. % of e) at least one surfactant selected from the group consisting of anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants and zwitterionic surfactants, wherein said composition is free from boron and boron compounds and is further characterized in that the ratio by weight of b) said at least one solid lubricant to a) said at least one water-soluble inorganic salt [(b):(a)] is from 0.1:1 to 1:1.

Lubrication and friction reduction improves fuel efficiency and reduces energy consumption. Effective and controllable material removal results in superior surface finishing and planarization. Nanosheets are developed with specific functionalization that can be used to reduce friction and wear, improve the fluidic property, and rheological performance

The nanosheets can be from the graphite family, transition metal dichalcogenides, transition metal trichalcogenides, semiconducting chalcogenides, metal oxides, layered hydroxides, clays, ternary transition metal carbides and nitrides, and zirconium phosphates and phosphonates, and their corresponding dopants.

Tribological, rheological, and polishing applications include lubricants, viscosity modification, and chemical-mechanical planarization. The nanosheets are useful in improving efficiency and lifetime of machinery, saving energy for mechanical operations, and optimizing manufacturing processes in surface engineering.

A machine component has a first tribological surface contacts a second tribological surface of another machine component during a machine operation. At least part of the first tribological surface is covered with a coating that includes a first coating layer and a second coating layer. The first coating layer includes an inorganic protective coating composition that is a chemically produced coating composition containing at least one of black oxide or manganese phosphate. The second coating layer includes an organically modified silane composition, in which an organically modified silane in the organically modified silane composition contains one or more amine groups. The first coating layer is in direct contact with at least part of the first tribological surface, and the second coating layer is in direct contact with at least part of the first coating layer.