摘要:
The present invention discloses a synthetic post-pickle fluid composition which is useful for treating metal to provide corrosion resistance and act as a lubricant for further metal processing. In the preferred embodiment, the composition contains an aqueous solution of a base and a carboxylic acid. The composition may also include fatty acids, viscosity controllers, i.e., thickeners, extreme pressure additives, and optionally may include a chelating agent. In a second embodiment, the composition contains an aqueous solution of a base and a fatty acid at more then 7 percent of the total composition. Examples of suitable bases include potassium hydroxide, monoethanol amine and diethanolamine. Examples of suitable carboxylic acids are the aromatic carboxylic acids and C.sub.4-16 dibasic carboxylic acids. The composition has a basic pH.
摘要:
A metal drawing compound is described which is formed by dipping or otherwise coating metal drawing stock with an aqueous soap-borate composition having a pH in the range of from about 7.6 to less than about 9.0. The solution can be allowed to dry on the workpiece, or can be used as a wet film and then drawn conventionally. In a preferred embodiment of the invention the soap-borate composition is prepared by admixture with a borate compound selected from the group consisting of potassium pentaborate, ammonium pentaborate and sodium octaborate in neutral pH water of solution.
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:
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 synthetic dual-purpose fluid for use as a hydraulic fluid and in metal cutting operations, particularly where hydraulic fluid leakage cannot be tolerated in hydraulically operated machines designed for metal cutting purposes. The fluid contains in combination 50-70% of an alkylene glycol, 10 to 25% of an alkanol amine, up to 10% boric acid, and 2 to 25% of a phosphate-modified condensation product of a fatty acid and a dialkanolamine.
摘要:
A lubricating grease composition is provided having improved salt water corrosion resistance and comprising a lithium complex grease thickener, a metal naphthenate and a quaternary ammonium salt.
摘要:
An improved lubricating oil composition comprising a major amount by weight of oil of lubricating viscosity; a minor amount by weight of solid particles effective to improve the lubricating properties of the composition; and a minor amount of a nitrogen containing mixed ester of a carboxy containing interpolymer. This composition provides improved inhibition of sludge and varnish formation in use.
摘要:
A biodegradable lubricating grease composition is provided comprising an emulsion of vegetable-derived gel, water and a lubricant from the class of natural oils and fats.
摘要:
Polyurea-based greases containing as an extreme-pressure additive an alkali metal triborate introduced or produced in the grease in aqueous solution.