Abstract:
Magnesium hydroxide or mixtures of magnesium hydroxide and boron nitride applied, e.g., by spraying in a liquid vehicle onto surfaces of a sheet (22) of a superplastic formable metal alloy facilitate the forming of such sheet material and the removal of the formed sheet material from the forming tool or die (10).
Abstract:
The invention relates to a method for the production of a cooling lubricant emulsion mixed with water, used for metal cutting, whereby a) 2-15 parts by weight of a water-miscible concentrate of a coolling lubricant emulsion are mixed with 98-85 parts by weight of water, so as to obtain a mixture comprising 100 parts by weight, and then b) one disperses 1-14 parts by weight of a non water-miscible native-based cutting oil are dispersed, with strong shearing action into mixture a). The cutting oil is preferably chosen from oxidation-stabilized fatty acid glycerides in the form of triesters with three fatty acids with 14-22 C-atoms per fatty acid, and oxidation-stabilized diesters with two fatty acids with 12-22 C-atoms per fatty acid. The invention further concerns a cooling lubricant emulsion that can be produced by this method, and its use for metal cutting.
Abstract:
An aqueous machining fluid composition having improved resistance to microorganisms is provided. The fluid composition comprises in admixture: a) water, b) a water insoluble organic lubricant, c) a surface active agent selected from the group consisting of nonionic, anionic having up to and including 12 carbon atoms, and cationic surfactants and mixtures thereof and d) a water soluble polyquaternary cationic biocide. Machining processes comprising the step of supplying said aqueous machining fluid to the interface between the tool and the workpiece are also provided.
Abstract:
The invention concerns a friction-reducing additive for water-miscible or non-water-miscible cooling lubricants which contains: a) bismuth compounds of organic acids; and b) sulphurous organic compounds, in a mixture ratio such that the sulphur content of the additive ranges from 2 to 30 wt % and the bismuth content ranges from 1 to 25 wt %. The invention further concerns the use of this additive in the minimal lubricating technique and as a friction-reducing additive for non-water-miscible cooling lubricants and water-mixed cooling lubricants and their concentrates.
Abstract:
A lubricant composition having a kinematic viscosity at 40 DEG C of 5-50 mm /s and including at least 70 wt.% of at least one saturated or unsaturated straight or branched alkylene glycol with an alkylene chain including 2-5 carbon atoms, and optionally a polymer of said alkylene glycol having a molecular weight of less than 5000.
Abstract:
Compositions of use as water-based alkaline industrial fluids contain a sugar amine of formula (1), wherein A represents a monosaccharide, disaccharide, trisaccharide or polysaccharide group, and wherein R1 and R2 each represents hydrogen or an optionally substituted alkyl or aryl group having from 1 to 24 C atoms.
Abstract:
The invention provides composites of organic polymeric compositions including a matrix of an organic polymer and a filler distributed throughout the matrix, the filler being present in the matrix substantially as separate particles, each about the fundamental particle size of the filler. The fillers are unique mixed metal hydroxide compositions that are obtainable in sub-micron size particles. These particles are layered and have a BET specific surface area in excess of about 100 m /g. An anion of the particulates is selected to be compatible with the organic polymer thereby providing ease of dispersion of the filler particles throughout the polymer matrix.
Abstract:
Alkaline diamine track lubricants for use with glass, aluminum and two-piece PET containers and other articles of manufacture are prepared from an admixture of an alkyl diamine and a water-soluble hydrotrope. The diamine lubricants are prepared without the neutralization thereof and have a corrosion inhibitor which is, preferably, a reducing agent and a biocide incorporated therein to. A source of alkalinity may be employed, as well, to maintain the pH above 8.
Abstract:
The invention concerns the use of carboxylic acids or their salts as the basic corrosion-protection component of agents for the treatment of metal surfaces, as well as a method of separating such agents from an aqueous medium after use in accordance with specified procedures, recovering the carboxylic acids and, optionally, recycling them in a suitable agent.
Abstract:
A solid lubricant additive for resin-bound friction lining mixtures is characterised in that it contains a combination of copper-I-sulphide (Cu2S) with at least another sulphide of molybdenum, zinc, antimony, wolfram, tin and/or titanium.