Abstract:
The present invention concerns a lubricating composition to be used in the casting of steel, in particular in continuous casting processes. In particular, the present invention concerns a lubricating composition for processes for producing steel in continuous casting comprising a dispersion of a lubricating powder in a liquid medium.
Abstract:
The present invention provides an anti-seizure agent for hot steel working comprising: an inorganic component as a first component; sodium hydroxide as a second component; water-soluble resins and/or water-soluble surfactants as a third component; and water, wherein, to the mass of the sum of the first component, the second component, and the third component as 100 mass %, the anti-seizure agent contains: 96.5 mass % or more and 99.98 mass % or less of the first component; 0.01 mass % or more and 2. 0 mass % or less of the second component; and 0.01 mass % or more and 1.5 mass % or less of the third component, and the inorganic component is one or more selected from a group consisting of Al 2 O 3 , SiO 2 , CaO, B 2 O 3 , K 2 O, and Na 2 O. This anti-seizure agent for hot steel working exhibits excellent wettability and surface firm-adherability to the steel; moreover, the coating layer formed after application solidly adheres to the steel and does not come off in the environment of both cold and hot working.
Abstract translation:本发明提供一种用于热钢加工的防咬住剂,包括:无机成分作为第一成分; 氢氧化钠作为第二组分; 水溶性树脂和/或水溶性表面活性剂作为第三组分; 和水,其中,相对于第一成分,第二成分和第三成分的总量的质量为100质量%,防卡定剂含有第一成分,第二成分和第三成分的总和的96.5质量%以上且99.98质量%以下 零件; 0.01质量%以上且2.0质量%以下的第二成分。 0.01质量%以上且1.5质量%以下,无机成分为选自Al 2 O 3,SiO 2,CaO,B 2 O 3,K 2 O, 这种用于热钢加工的防咬住剂对钢具有优异的润湿性和表面牢固的粘合性; 此外,施加后形成的涂层在冷和热加工的环境中牢固地粘附到钢上并且不脱落。
Abstract:
Described are stable aqueous polyolefin-wax dispersions containing: A) 5 to 65 % by wt. of polyethylene or polypropylene wax with an average particle size of 1 to 50 νm and an acid number of less than 5 mg KOH/g of wax and, as dispersant; B) 0.5 to 20 % by wt. of the reaction product of 1 to 50 mol of a 1,2-alkylene oxide with 2 to 4 C-atoms, and a glyceride of unsaturated C16-C22 monocarboxylic acids with one or more primarily ethylenic unsaturated bonds and which may also contain hydroxy groups. These dispersions are suitable for use in the manufacture of floor- and stonework-care agents, shoe-care agents, car-care agents, printing inks, printing pastes, paints, packaging, lubricating grease, vaseline, drawing agents, sealing and insulating compounds for electrical components, aqueous wood glazes, hot-melt coatings, cosmetic preparations and toothpaste, in the plastics-processing industry, in paper manufacturing and in corrosion protection, in the finishing of yarns and fabrics, in treating leather and as mould-release agents in the chill-casting, die-casting and centrifugal casting of non-ferrous metals.
Abstract:
A carrier-free pulverulent metalworking lubricant composition. In one form, the composition contains from 2 to 30% by weight sulfur and at least one component having adhesive properties at forging temperatures, the composition being formed by a method comprising the steps of: (a) forming a dry mixture of said particulate lubricant components, and (b) agglomerating said admixture to form agglomerated particles. The application of the composition as a metal working lubricant significantly reduces smoke and oily waste generation in hot forging operations by eliminating the use of oils or volatile organic compounds as carriers, while providing acceptable performance, cleanability and sprayability.
Abstract:
A lubricant to be sprayed onto the surface of a steel material for forming a lubricant coat on the surface of the steel material to be forged. The lubricant comprises a particulate lubricant composed of thermally melting resin mixed with inorganic lubricant. The particulate lubricant is applied onto the surface of a steel material to be forged. Before or after applying the particulate lubricant onto the surface of the steel material, the surface of the steel material is heated. Consequently, the thermally melting resin melts and coheres with the inorganic lubricant over the surface of the steel material, resulting in the formation of a uniformly thick lubricant coat over the steel material. The lubricant coat prevents the steel material from being burnt in a forging device even during hot forging. The lubricant coat is fit for the forging of hard to work steel material. The lubricant coat also contributes to the decrease in forging cost, without deteriorating the forging environment.
Abstract:
An electro-rheological fluid material comprises fluid which itself acts as the active material and which may be liquid crystal material (e.g. type E7). A quantity of dry microscopic glass bubbles may be suspended within the fluid, the majority of the bubbles having diameters between 20 and 120 microns and wall thicknesses of between 0.5 and 2 microns.
Abstract:
An electro-rheological fluid material comprises fluid which itself acts as the active material and which may be liquid crystal material (e.g. type E7). A quantity of dry microscopic glass bubbles may be suspended within the fluid, the majority of the bubbles having diameters between 20 and 120 microns and wall thicknesses of between 0.5 and 2 microns.
Abstract:
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Freiformschmieden von Werkstücken in Schmiedepressen bei erhöhten Schmiedetemperaturen, insbesondere von Eisenblöcken bzw. Eisenlegierungsblöcken im Bereich zwischen etwa 800 und 1250 Grad Celsius. Beim bekannten Freiformschmieden kommt es häufig vor, daß der Schmiedevorgang nicht in einer Hitze beendet werden kann, sondern das Werkstück erneut aufgeheizt werden muß. Zudem treten beim direkten Kontakt zwischen Werkstück und Werkzeug Risse besonders im Bereich der Ausbauchungen auf, zu deren Verhinderung bzw. Begradigung mehrfach quer gereckt oder gestaucht werden muß, unter Verlängerung der Abkühlzeit. Infolgedessen ist der gesamte Energieaufwand für das Umformen und Erwärmen der Werkstücke verhältnismäßig hoch. Eine Verringerung dieses Energieaufwandes bei gleichzeitig überraschend verbesserter Produktqualität, unter nahezu vollständiger Vermeidung von Ausbauchungen, gelingt mit der Erfindung dadurch, daß während des Schmiedevorganges eine bei der Schmiedetemperatur wirksame Schmierung des Werkstückes (20) mittels eines flüssigen Glasfilms (30, 31) als Schmiermittel erfolgt. Das Schmiermittel wird zweckmäßigerweise als feinkörniges Pulver aufgebracht.
Abstract:
Trenn- und Schmiermittel in fester Form zur Warmmetallverarbeitung, insbesondere zum Warmblech- und Profilwalzen oder zur Schmierung von Dornstangen bei der Herstellung nahtloser Rohre. Das fest Trenn- und Schmiermittel enthält im wesentlichen ein thermoplastisches Polymer und/oder Copolymer und ein Gleitmittel für Kunststoffe. Weitere Zusätze, wie Festschmierstoffe, sind möglich. Der Erweichungspunkt liegt bei 20 bis 250°C, der Schmelzpunkt bei 30 bis 300°C und die Shore-D-Härte bei 20°C bei 20 bis 80.