Abstract:
A solid lubricant composition comprises (I) 30 to 70 parts by weight of graphite, (II) 70 to 30 parts by weight of a mixture of at least two components selected from alkali molybdate, alkali or alkaline earth sulphate and alkali phosphate, the ratio of the two individual ingredients being in the range of from 0.05/1 to 20/1. Compositions give improved load-bearing capacity and allows settling of friction coefficient.
Abstract:
According to the method of the invention, first a paste is produced from a plastics dispersion and fillers in order to form the plastics sliding layer. This paste is free from organic solvents and is applied to a sintered porous metal layer. The resultant multi-layer material is then sintered. Since organic solvents are not used, the risks to health and the risk of fire are considerably reduced. Furthermore, the composite materials produced according to the invention have exceptional resistance to cavitation. In addition to conventional fields of application relative to lubrication-free articles, such as bearings, these composite materials can therefore also be used in gear pumps and shock absorbers.
Abstract:
A lubricant for use in hot rolling of high chromium stainless steel, the lubricant being continuously supplied to surfaces of hot rolling rolls in contact with the steel being rolled at least during hot rolling of the stainless steel, which lubricant comprises a viscous aqueous solution of water soluble high molecular weight thickener and from 10 to 40% by weight of iron hydroxide powder dispersed in the aqueous solution, said iron hydroxide powder having a median particle size of from not less than 0.1 mu m to less than 1 mu m and said lubricant having an apparent viscosity within the range of from 1,000 to 50,000 cP.
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 lubricant having good extreme pressure properties and wear resistance contains not less thatn 0.1% by weight of at least one metallic phosphorus chalcogenide or an intercalation compound thereof.
Abstract:
Thin impermeable, surface hardened, corrosion-resistant, durable, dry lubricant surface finishes are provided as well as surface finished products and methods for the production thereof. The surface finishes comprise particulate mixtures of sulfur containing metallic compounds and fluorocarbon polymers and are applied to surfaces of substrates such as metallic surfaces.
Abstract:
1a - "MULTI-FUNCTION PROTECTIVE COATING FOR ZINC COATED STEEL SURFACES AND ITS ALLOYS" including zinc/iron, zinc/nickel, zinc/cobalt, zinc/aluminium and any metal surface, which product is characterized by containing: Copolymers of the group acrylic, vinylacrylic, acrylstirene, and having carboxilic radicals from acrylic and/or methacrylic acids, and Ia = 30-60 mg KOH. The water reducible copolymers containing alcohols and/or glycols and Lubricity additives, of solid nature, in a water dispersión, such as natural or synthetic waxes, graphite, molibdenum sulphide, at a ratio from 1 to 10%.
Abstract:
A composition for coating steel wire to facilitate the cold drawing thereof, said composition comprising:
(A) from about 50 to about 99.99 % by weight of a component selected from the group consisting of Na₂SO₄, K₂SO₄, and mixtures thereof; (B) from about 0 to about 49.99 % by weight of a component selected from the group consisting of Na₂B₄O₇, NaBO₂, K₂B₄O₇, KBO₂ and mixtures of any two or more thereof; and
(C) from about 0.01 to about 5 % by weight of a component selected from the group consisting of potassium soaps, sodium soaps, and ammonium soaps; wherein the percentages by weight are based on the total weight of components A, B, and C in the composition, and wherein not more than 50 % by weight of the total of sodium plus potassium plus ammonium ions in components A, B, and C of the composition consists of sodium ions.
Abstract translation:一种用于涂覆钢丝以促进其冷拔的组合物,所述组合物包含:(A)约50至约99.99重量%的选自Na 2 SO 4,K 2 SO 4及其混合物的组分; (B)约0至约49.99重量%的选自Na 2 B 4 O 7,NaBO 2,K 2 B 4 O 7,KBO 2及其任何两种或更多种的混合物的组分; 和(C)约0.01至约5重量%的选自钾肥皂,钠肥皂和铵肥皂的组分; 其中所述重量百分比基于组合物中组分A,B和C的总重量,并且其中组分A,B和C中不超过总重量的钠+钾+铵离子的50重量% 的组成由钠离子组成。