Abstract:
Die Erfindung betrifft Schmiermittel für die Umformung metallischer Werkstoffe, die sich für die Kaltumformung, insbesondere für das Ziehen von strangförmigem Umformgut sowie für die Warmumformung, insbesondere für das Gesenkschmieden, eignen. Das Schmiermittel für die Kaltumformung enthält
(A) 0,01 bis 15 Masse-% Erdalkaliseifen, (B) 0,05 bis 15 Masse-% Alkali- oder Ammoniumborat, (C) 0 bis 14 Masse-% Alkali- oder Ammoniumphosphat, (D) 0 bis 10 Masse-% polymere organische Verbindungen und (E) 0,005 bis 10 Masse-% in wässeriger Lösung bei einem pH-Wert über 6,9 und bei Temperaturen unter 95 °C entstandene Reaktionsprodukte der Komponenten A bis D, wobei die Summe der Anteile der Komponenten A bis E kleiner als 35 Masse-% ist. Das Schmiermittel für die Warmumformung enthält in Wasser
(A) 0,25 bis 10 Masse-% Erdalkaliseifen, (B) 0,05 bis 3 Masse-% Alkali- oder Ammoniumborat, (C) 0,05 bis 8 Masse-% Alkali- oder Ammoniumphosphat, (D) 0,01 bis 2 Masse-% polymere organische Verbindungen und (E) 0,005 bis 8 Masse-% in wässeriger Lösung bei einem pH-Wert über 6,9 und bei Temperaturen unter 80 °C entstandene Reaktionsprodukte der Komponenten A bis D, wobei die Summe der Anteile der Komponenten A bis E kleiner als 20 Masse-% ist. Die Schmiermittel sind umweltfreundlich, langzeitstabil, hochwirksam und billig.
Abstract:
Vorgeschlagen werden Festschmierstoffkombinationen, insbesondere für Reibmaterialien wie z.B. Reibbeläge, auf Basis von Graphit, Zinksulfid und mindestens einem anorganischen Metallphosphat, die vor allem dadurch gekennzeichnet sind, daß sie zusätzlich 1 - 4 % Antimontrisulfid, 5 - 20 % Antimonpentasulfid und 0,1 - 3 % freien Schwefel, bezogen auf ihre Gesamtmasse, enthalten, sowie damit gebildete Reibmaterialien, vorzugsweise Reibbeläge.
Abstract:
A wire rod is payed out from a pay-off stand and 1 descaled in a descaling process. After preheating to a predetermined temperature by a preheating device, it is subjected to a lubrication pretreatment through a zinc calcium phosphate solution applied with ultrasonic wave in the lubrication pretreatment process. After rinsing process, the lubrication-pretreated wire rod is coated with a calcium stearate or a sodium stearate in lubricating process. Thereafter, the wire rod is dried sufficiently in drying process, and then added with a predies lubricant in wire drawing process and coiled by a coiler.
Abstract:
The present invention provides a thermally conductive grease composition which scarcely increases in hardness during high-temperature heating and has a minimized reduction in growth, containing: (A) an organopolysiloxane including at least two alkenyl groups per molecule, the 25°C kinetic viscosity being 5,000 to 100,000 mm 2 /s; (B) a hydrolysable methyl polysiloxane, trifunctional at one terminus, represented by general formula (1)
(R 1 is a C 1-6 alkyl group, and a is an integer 5 to 100); (C) a thermally conductive filler having a thermal conductivity of 10 W/m·°C or greater; (D) an organohydrogenpolysiloxane containing two to five hydrogen atoms directly bonded to a silicon atom (Si-H group) per molecule; (E) an adhesion promoter having a triazine ring and at least one alkenyl group per molecule; and (F) a catalyst selected from the group consisting of platinum and platinum compounds.
Abstract:
The present invention provides a refrigerator oil composition comprising a base oil which is at least one member selected from mineral oils and synthetic oils, and at least one imide compound, said imide compound in an amount of 0.01 to 5 % by mass based on the total amount of the refrigerator oil composition, and also provides a compressor and a refrigeration apparatus using the refrigerator oil composition. The refrigerator oil composition and the compressor and the refrigeration apparatus using the refrigerator oil composition satisfy both sludge dispersibility and prevention of wear and seizing of a sliding part made of aluminum and/or iron.
Abstract:
A lubricant coating disposed between a substrate and a counter surface comprises a reaction layer immediately adjacent the substrate. A bonding layer is immediately adjacent the reaction layer, with the bonding layer comprising a first composition. A low friction, lubricious layer is immediately adjacent the bonding layer, with the lubricious layer comprising a second composition that is different from the first composition.
Abstract:
A solid film lubricant system for protecting metal wear interfaces subject to high temperatures and wet lubrications, comprising an oil-attracting solid lubricant mixture with at least two elements selected from the group of graphite, MoS2 and BN; a support (i.e., hard lands or hard sublayer) for the mixture to loads of at least 10 psi at temperatures of 600 DEG -800 DEG F. while being thermally stable; a thermally stable thermoset polymer matrix adhering the mixture to the support or the wear surface, the polymer having inherent hydrocarbon chemical attraction to form a tenacious oil film of the lubricating oil on the wearing surface. A method of making anti-friction coated surfaces comprising providing a light metal based cylinder surface (i.e., metal base or alloys of aluminum, titanium, or magnesium); exposing nonoxidized metal of the surface; applying a high elastic modulus load-supporting metal layer onto at least portions of the light metal cylinder surface; and simultaneously distributing a solvent-based solid film lubricant mixture and thermoset polymer onto at least portions of the layer at about room temperature to form a coating of desired thickness. An engine block with one or more anti-friction coated cylinder bore surfaces, comprising a hard, load-supporting face on the bore surface; and a coating on the face comprised of an oil-attracting solid lubricant mixture and a thermoset polymer that supports loads of at least 10 psi at temperatures of 600 DEG -800 DEG F. and is stable at such temperatures.
Abstract:
The present invention provides lubricant compositions for the powder metallurgical field. The lubricant compositions contain a solid phase lubricant such as graphite, molybdenum disulfide, and polytetrafluoroethylene in combination with a liquid phase lubricant that is a binder for the solid phase lubricant. The binder can be chosen from various classes of compounds including polyethylene glycols, polyethylene glycol esters, partial esters of C3-6 polyhydric alcohols, polyvinyl esters, and polyvinyl pyrrolidones. The binder is solubilized in an organic solvent.
Abstract:
A process for drawing wire employing a lubricant comprising perfluorocarbon compounds (PFCs), including aliphatic perfluorocarbon compounds ( alpha -PFCs) having the general formula CnF2n+2, perfluoromorpholines having the general formula CnF2n+1ON, perfluoroamines (PFAs) and highly fluorinated amines (HFAs), and perfluoroethers (PFEs). Such fully and highly fluorinated carbon compounds exhibit a very high degree of thermal and chemical stability due to the strength of the carbon-fluorine bond. Further, because the compounds are fully fluorinated, and therefore do not contain chlorine and bromine, they have zero ozone depletion potential (ODP). Further, because the compounds are photochemically non-reactive in the atmosphere, they are not precursors to photochemical smog and are exempt from the United States Environmental Protection Agency (EPA) volatile organic compound (VOC) definition. Further, because they are volatile, the compounds are easily removed at the end of the process without need for an additional cleaning step. The process provides wire at significantly higher production speeds and longer die life with improved quality and less byproduct debris.
Abstract:
Es wird eine Schmiermittelzusammensetzung beschrieben, die geeignet ist zur Anwendung auf Werkstücken mit Oberflächentemperaturen von 800 °C bis 1300 °C.