摘要:
Corrosion of metal workpieces by water-based synthetic metalworking fluids is inhibited by a small but effective amount of a corrosion inhibitor consisting essentially of a molybdate compound and a compound selected from the group consisting of nitrites, borates, alkanolamines, amine borates, amine salts of unsaturated fatty acids, alkanolamine sarcosinates, alkanolamine phosphates, and alkali, morpholine, and alkanolamine salts of arylsulfonamido carboxylic acids.
摘要:
Organic acid esters and oils of lubricating viscosity which have been oxidized and phosphosulfurized in the presence of lime or zinc oxide provide excellent antiwear/EP characteristics to metal forming lubricants containing same.
摘要:
A compound comprising molybdenum disulfide emulsified in a resin of the para phenyl phenol formaldehyde group, diluted in a vehicle of the methylbenzene group in a homogenized emulsion is deposited onto metal surfaces preheated to a surface temperature of 350.degree. to 500.degree. F. The heat stored in the metal promotes quick evaporation of the benzene vehicle while the resin sets. The cure and evaporation of the carrier may be further promoted by baking the coated article in an oven at a temperature of 300.degree. to 500.degree. F.
摘要:
Tinplate container stock coated with a substantially uniform film of lubricant, the lubricant film consisting essentially of a citric acid ester lubricant in an amount of at least 1.8 grams per basebox, and a method for its use in drawing and ironing operations.
摘要:
A process for the lubrication of a tool surface which comprises high pressure blast spraying a powder lubricant having a particle size of 0.6 to 1.5 .mu. at a spray pressure of 4 to 5 bar, onto the tool surface thereby producing a high temperature compacted coherent lubricant film on the surface while simultaneously smoothing, strengthening and compressively stressing the tool surface.
摘要:
A sperm oil substitute, having extreme pressure and anti-wear properties consisting of a lubrication composition comprising a major amount of a lubrication oil and a minor amount of an extreme pressure and anti-wear additive, comprising (I) a diester of the condensation product of (A) a dicarboxylic acid or a dicarboxylic acid anhydride, and (B) a linear unsaturated alcohol; and optionally, in combination with, (II) a linear unsaturated alcohol, wherein from about 6 weight percent to about 20 weight percent of said combined diester and linear alcohol comprising the sulfide moiety.
摘要:
The invention provides a method for reducing the incidence of thermal decomposition products of metal-treating compositions on the surface of metal heat-treated in the presence of such compositions. The compositions are modified with certain acetylenic alcohols to improve their clean-burning characteristics; the resulting decrease in residual decomposition product on the metal surface facilitates subsequent processing.
摘要:
Metal working operations, especially drawing, are facilitated by applying to the metal a composition which provides lubricity thereto and which melts within the range of about 30.degree.-100.degree. C. The composition comprises at least one ester of a carboxylic acid, with a carboxylic acid or derivative thereof, a phosphorus acid salt and an antioxidant being preferred optional ingredients. The composition may be applied in liquid form and solidifies on cooling to ambient and normal storage temperatures. Prior to application, the composition is preferably heated to a temperature higher than its melting temperature for ease of flow and uniform dispersion thereof onto the metal. In a preferred method of application, a reservoir is located beneath the composition applicator and composition is pumped therefrom to the applicator, preferably a roller coater, with excess composition being recirculated. Steam may be used both to heat the composition to melting point and purge the pump and circulation piping at the start and finish of each run.
摘要:
The invention relates to lubricants for use in metal shaping operations, especially hot and cold rolling of steel and aluminium, and casting of aluminium. Preferred lubricants comprise in a mixture (i) a tetraester of pentaerythritol and a C.sub.16 to C.sub.20 aliphatic monocarboxylic acid, (ii) orthophosphoric acid. The lubricants have markedly reduced coefficients of friction; improved roll-wear characteristics and good stability at temperatures of 250+.degree.C. Incorporation of mineral oil and an emulsifier enables the thus modified composition to be used for the preparation of aqueous emulsions or dispersions.
摘要:
A method of treating steel sheets which have good corrosion resistance after forming, which comprises coating a steel sheet with a solution which contains:(a) water-soluble or water-dispersible lithium silicate at a concentration of 2 to 250 g/l, which lithium silicate is a mixture of silicic acid or silicate and lithium salt in a molar ratio of 20:1 to 1:1.(b) at least one water-soluble or water-dispersible saturated or unsaturated fatty acid compound, higher alcohol wax, polyethylene type resin, fluorine type resin or silicone type resin at a concentration of 1 to 250 g/l.