摘要:
Disclosed is an additive for aqueous lubricants which can provide aqueous lubricants excellent in bacteriocidal action, rust proofness, emulsifiability and dissolvability and show no deterioration during use. This additive contains a piperazine compound represented by the general formula [I] or a reaction product of said piperazine compound with a carboxylic acid of 2-55 carbon atoms: ##STR1## wherein R.sup.1 -R.sup.8 represent hydrogen atom or alkyl group of 1-18 carbon atoms and m is an integer of 1-5. This additive may further contain an emulsifier or a lubricating oil.
摘要:
The invention provides a water-soluble metal working lubricant which is suitably employed particularly in press-working of aluminum material and which is excellent in both working properties and degreasing properties.The water-soluble metal working lubricant includes 85 mass % or less of water (A); 5 to 75 mass % of a metal salt of an organic carboxylic acid (B) wherein carboxylic acid residue has 8 or more carbon atoms in total and the acid/alkali ratio by mole is 1:0.5 to 1.1; 1 to 50 mass % of at least one metal salt (C) selected from among an organic phosphate ester metal salt, an organic phosphite ester metal salt, an organic phosphonate metal salt, and an organic borate ester metal salt, each having an alkyl group having 8 or more carbon atoms in total; and 10 to 80 mass % of a non-ionic surfactant (D).
摘要:
The invention provides a water-soluble metal working lubricant which is suitably employed particularly in press-working of aluminum material and which is excellent in both working properties and degreasing properties. The water-soluble metal working lubricant includes 85 mass % or less of water (A); 5 to 75 mass % of a metal salt of an organic carboxylic acid (B) wherein carboxylic acid residue has 8 or more carbon atoms in-total and the acid/alkali ratio by mole is 1:0.5 to 1.1; 1 to 50 mass % of at least one metal salt (C) selected from among an organic phosphate ester metal salt, an organic phosphite ester metal salt, an organic phosphonate metal salt, and an organic borate ester metal salt, each having an alkyl group having 8 or more carbon atoms in total; and 10 to 80 mass % of a non-ionic surfactant (D).
摘要:
The invention provides a water-soluble quenching medium suitably usable for quenching of metal, which can prevent quenching cracks and quenching ununiformity while having good hardenability. The medium comprises (A) a polyalkylene glycol having a weight average molecular weight of from 10,000 to 100,000 and/or its derivative, (B) a glycol ether having a weight average molecular weight of 1,000 smaller, and optionally (C) an alkylene glycol having a weight average molecular weight of 1,000 or smaller, (D) an alkali metal carboxylate, and (E) an organic amine compound having a weight average molecular weight of 1,000 or smaller.
摘要:
A rust and corrosion preventive hydrous fluid comprising (a) 0.01% or more by weight of a rust and corrosion preventive compound of the following formula: ##STR1## wherein n is an integer of 3 to 300, each R.sup.1 is an alkylene group of 2 to 4 carbon atoms, an arylene group of 6 to 30 carbon atoms or a cycloalkylene group of 6 to 30 carbon atoms, with the proviso that the R.sup.1 groups are identical with or different from one another, and R.sup.2 is a hydrogen atom, an alkyl group of from 1 to 30 carbon atoms, an aryl group of from 6 to 30 carbon atoms or a cycloalkyl group of from 6 to 30 carbon atoms, and (b) water.
摘要:
A water containing lubricant comprising a lubricating base oil, and a water-soluble corrosion inhibitor and water dispersed in the base oil by the use of a mixture of several surfactants having a specific hydrophile lipophile balance (HLB) value, respectively. The lubricant of this invention is a transparent dispersion containing a relatively large amount of water in the base oil, and is useful as an emulsion type metal working oils, hydrolic fluids, gear oils, engine oils, etc.
摘要:
A water-glycol hydraulic fluid comprising a higher aliphatic acid in a ratio of 2 to 15% by weight, alkali hydroxide in an amount less than an equivalent amount of the higher aliphatic acid, and an organic alkaline compound containing nitrogen atoms in an amount sufficient to adjust the pH of the whole fluid to 10 to 12 is disclosed.This hydraulic fluid has excellent wear resistance and also excellent sludge solubility.
摘要:
Method of adjusting a concentration of oil in a water-containing oil material which comprises determining a change in buoyancy exerted on a plummet suspended in the oil material and controlling the amount of water being supplied to the oil material according to the change in buoyancy, and apparatus therefor.
摘要:
Disclosed is an aqueous composition prepared by dispersing water in a base fluid in the presence of surfactants, which composition comprises, as the surfactants,(A) at least one of the compounds represented by the general formula:R.sup.1 --O--(R.sup.2 --O)n.sup.-Hwherein R.sup.1 is an alkyl group having 3 to 10 carbon atoms, R.sup.2 is an alkylene group having 2 or 3 carbon atoms, and n is an intefer of 1 to 20; however, when n is an integer of 2 or more, the repeating unit (R.sup.2 --O) may contain both of alkylene groups having 2 carbon atoms and alkylene groups having 3 carbon atoms mixedly, and(B) at least one ionic surfactant.The aqueous composition of the present invention is transparent in appearance, and has a low viscosity, and can employ a fluid having a high viscosity to obtain a composition of desired viscosity. Said composition is also excellent in mechanical and chemical stabilities. In said composition, phase inversion by temperature is reversible.
摘要:
A method of lubricating a metal working machine which has (i) at least one sliding machine surface requiring lubication and (ii) a metal working section wherein metal is worked in contact with a metal working fluid, said method comprises applying a lubricating oil composition to said at least one sliding surface and using as said metal working fluid an aqueous working fluid composition comprising said lubricating oil composition diluted with water, said lubricating composition comprising;(A) 5 to 88% by weight of at least one oil selected from the group consisting of a mineral oil and a synthetic oil,(B) 2 to 50% by weight of a reaction product of a long chain dibasic acid having 14 to 28 carbon atoms and an alkanolamine,(C) 5 to 30% by weight of at least one extreme pressure additive selected from the group consisting of sulfurized fat and oil, a phosphate, a phosphite, and an amine salt of phosphate or phosphite(D) 5 to 30% by weight of an emulsifying agent selected from the group consisting of an anionic surface active agent, a cationic surface active agent, a nonionic surface active agent and a phosphorus-containing surface active agent.The invention also provides the lubricating oil composition specified hereinbefore.