Abstract:
Schmierstoffsystem für Blech- und Profilwalzwerke, enthaltend einen Festschmierstoff, eine klebende Komponente und/oder ein Verdickungsmittel, sowie Wasser als Trägermedium. Dieses Schmierstoffsystem wird als Suspension auf die Arbeitszylinder im Walzgerüst aufgesprüht, wobei das Wasser wenigstens teilweise verdampft und sich eine fest haftende, wasserfeste, schmierende und trennende Schicht auf den Arbeitszylindern bildern.
Abstract:
Acicular, crystalline calcium metaphosphate having a length to average diameter ratio of at least 10:1 can be prepared by forming a melt of materials used as a source of calcium, phosphorus and alkali metal, usually at about 1000to 1200°C., cooling the melt to within the range about 550°C. to about 970°c., inducing acicular crystal formation, and recovering the acicular crystals. The diameters of the resultant acicular, crystalline calcium metaphosphates can vary from an average of 0.5 micron or smaller up to several microns. Cryst- afs having a length of several centimeters can be prepared. Such acicular, crystalline calcium metaphosphates are useful in a number of applications, and particularly to prepare composites with organic polymeric materials.
Abstract:
Lubricating oil compsn. (I) consists of: (a1) 0-80 (wt.%) glass powder; (a2) 0-50 glass frit, where one of (a1) or (a2) is hot 0 wt .%; (b) 10-25 natural or synthetic graphite; (c) 5-20 alkali silicates of formula: Me2OnSiO2 (where Me = Li, K or Na; and n = 1-4); (d) 1-6 water-soluble Na-polymetaphosphate; (e) 0-3 water-insoluble Na-polymetaphosphate; (f) 0.5-4 thickener; and (g) 0-1 borax.
Abstract:
Lubricating oil compsn. (I) consists of: (a1) 0-80 (wt.%) glass powder; (a2) 0-50 glass frit, where one of (a1) or (a2) is hot 0 wt .%; (b) 10-25 natural or synthetic graphite; (c) 5-20 alkali silicates of formula: Me2OnSiO2 (where Me = Li, K or Na; and n = 1-4); (d) 1-6 water-soluble Na-polymetaphosphate; (e) 0-3 water-insoluble Na-polymetaphosphate; (f) 0.5-4 thickener; and (g) 0-1 borax.
Abstract:
Agent for the pickling of and as an antioxidant for workpieces made of iron and steel in the case of when they are subjected to non-cutting, hot transformation. The agent is used in dry form. The agent contains: (a) 20 to 80 percent by weight of a pickling-effective compound, such as, sodium metaborate; (b) 1 to 80 percent by weight of a component, such as, graphite; and (c) zero to 79 percent by weight of at least one substance selected from group (d), (e) and/or (f). Zero to 35 percent by weight of group (d), such as, coke, can be used as substance (c) and, for example, act as antioxidants. Zero to 50 percent by weight of group (e), such as, sodium chloride, can be used as substance (c), and control the physical characteristics. Zero to 5 percent by weight of group (f), such as, ammonium chloride, can be used as substance (c) and, for example, act on the reduction of the oxides of group (a).
Abstract:
Lubricating oil compsn. (I) consists of: (a1) 0-80 (wt.%) glass powder; (a2) 0-50 glass frit, where one of (a1) or (a2) is hot 0 wt .%; (b) 10-25 natural or synthetic graphite; (c) 5-20 alkali silicates of formula: Me2OnSiO2 (where Me = Li, K or Na; and n = 1-4); (d) 1-6 water-soluble Na-polymetaphosphate; (e) 0-3 water-insoluble Na-polymetaphosphate; (f) 0.5-4 thickener; and (g) 0-1 borax.
Abstract:
Novel aqueous lubricant dispersions contain at least one rare earth halide, e.g., cerium trifluoride, and at least one polymeric dispersing agent therefor, such at least one dispersing agent including: (a) a copolymer of an ethylenically unsaturated carboxylic acid or derivative thereof with an alpha -olefin comonomer and/or a vinyl comonomer; (b) a homopolymer or copolymer of an ethylenically unsaturated carboxylic acid or derivative thereof; (c) a copolymer of at least one ethylenically unsaturated carboxylic acid and at least one ethylenically unsaturated sulfonic acid comonomer; and/or (d) a polymer of an alkylene oxide of an (arylalkyl)phenol, or phosphated or sulfated derivative thereof.
Abstract:
Lubricant is preferably applied in an aqueous dispersion. To prevent coagulation of the solids in the aqueous dispersion on the one hand and to obtain a heat-resistant uniform lubricating film on the other hand, the high-temperature lubricant additionally contains, apart from a solid lubricant, an organic product which decomposes without residue, an inorganic additive of polyphosphate, a boron compound and an alkali metal silicate, and also an organic stabiliser.