Abstract:
A composition for treating the surface of a ferrous metal. The composition comprises aluminum sulfate, boric acid or a boric acid precursor, and polycarboxylic acid or salt thereof. Treatment of the ferrous metal with an aqueous solution of the composition at elevated temperature and low pH provides a coating that imparts lubricity to the metal, thereby facilitating metal working processes such as drawing for wire production.
Abstract:
According to the invention there is provided a method of reducing wear of one or both of two steel elements having surfaces in sliding or sliding-rolling contact. The method involves applying an HPF friction control composition to one, or more than one contacting surface of one or both of the two steel elements. In a particular example, the HPF friction control composition comprises a rheological control agent, a lubricant, a friction modifier, and one, or more than one of a retentivity agent, an antioxidant, a consistency modifier, and a freezing point depressant.
Abstract:
La présente invention a pour objet un procédé de préparation d'une émulsion multiple comprenant une émulsion inverse constituée d'une phase aqueuse interne dispersée dans une phase organique interne, dispersée dans une phase aqueuse externe : la phase aqueuse interne comprenant éventuellement au moins une matière active hydrophile ; la phase organique interne comprenant éventuellement au moins une matière active hydrophobe ; l'émulsion inverse comprenant au moins un tensioactif et/ou au moins un polymère amphiphile interne(s) ; la phase aqueuse externe comprenant éventuellement au moins une matière active hydrophile et au moins un tensioactif et/ou au moins un polymère amphiphile externe(s) ;le procédé selon l'invention consistant à mettre en oeuvre les étapes suivantes :a) on prépare l'émulsion inverse ;b) on prépare la phase aqueuse externe ;c) on introduit la phase aqueuse externe dans l'émulsion inverse, sans agitation ;d) on agite l'ensemble ;e) on dilue éventuellement l'émulsion multiple concentrée ainsi obtenue, par ajout, sous agitation, d'une phase aqueuse de dilution comprenant au moins un tensioactif et/ou au moins un polymère amphiphile externe(s), afin d'obtenir une émulsion multiple diluée.
Abstract:
An aqueous one step type lubricating agent for efficient cold forging, characterized in that it comprises (A) a water-soluble inorganic salt, (B) a wax and (C) a metal salt of a fatty acid in a form dissolved or dispersed in water, wherein weight ratios of solid contents are 0.60 to 0.70 for (B)/(A) and 0.1 to 0.3 for (C)/(A). The water-soluble inorganic salt can be selected from among a sulfate, a silicate, a borate, a molybdate and a tungstate. As the wax, use can be made of a synthetic wax being dispersible in water and having a melting point of 70 to 150 DEG C. As the metal salt of a fatty acid, use can be made of a reaction product of a saturated fatty acid having 12 to 26 carbon atoms with at least one metal selected among zinc, calcium, barium, aluminum and magnesium.
Abstract:
A water-based composition for protective film formation, characterized by containing a water-compatible inorganic salt and a smectite clay mineral. By merely applying the composition to a surface of a metallic material and drying it, a coating film can be formed which is less apt to have spots and is even, and is equal or superior in processability and seizing resistance to coating films formed by a chemical treatment. In the case where the composition further contains a lubricating ingredient, the coating film can further have improved lubricity.
Abstract:
The invention involves a composition for forming a combined conversion and lubricating coating on a metal substrate with which the composition is brought into contact. The composition comprises (a) an oxyethylated aliphatic alcohol whose aliphatic hydrocarbon moiety contains 18 or more carbon atoms and (b) dissolved phosphate anions. Preferably the composition also comprises inorganic boron, an alkali metal salt of a fatty acid, and an accelerator for phosphate coating.
Abstract:
Functional fluids comprising as a base oil at least one compound selected from the group consisting of a glycol, a glycol ether, an ester, a hydrocarbon, and mixtures thereof and as a multifunctional additive composition the mixture of a benzotriazole, a derivative thereof or mixtures thereof together with 1,2,4-triazole, a derivative thereof or mixtures thereof. The functional fluids exhibit increased resistance to corrosion and reduced sediment formation and are especially useful as brake fluids.
Abstract:
A metal working water or composition which has excellent cooling capability and lubricity and does not adversely affect the environment. Water containing at least one member selected from among a fluoride ion, a hydrogencarbonate ion and silicon, and a sodium ion and having a pH regulated to 6.0 to 10 is used as such as a metal working water. Alternatively, an additive, such as a rust preventive, is incorporated into the metal working water to prepare a composition which is then used as an alternative to a cutting oil.
Abstract:
Mucilages and mucilage extracts are disclosed that are effective as water-soluble, non-toxic, biodegradable, environmentally benign lubricants and/or coolants for a variety of industrial and machining purposes. One embodiment of the invention is a cooling and/or lubricating composition comprising sufficient amount of the mucilage to cool and/or lubricate a machining surface. Other embodiments further comprise a sufficient amount of a preservative to substantially inhibit degradation of the composition. Also encompassed within the scope of this invention are methods for making mucilage-comprising cooling and/or lubricating compositions, as well as concentrating and drying such compositions. Other aspects of this invention are methods for machining a surface, comprising extracting a mucilages, adding a sufficient amount of a preservative to substantially inhibit degradation of the mucilage to form a mucilage mixture, applying the mucilage mixture to a surface to be machined, and thereafter machining the surface. In another aspect, the invention provides methods for lubricating and/or cooling a machining surface comprising extracting a mucilage, adding a sufficient amount of a preservative to substantially inhibit degradation of the mucilage to form a mucilage mixture, and applying the mucilage mixture to the machining surface to act as a lubricant and/or coolant. A further aspect of this invention is the use of plant mucilage to coat the outer hull of watercraft, thereby reducing friction and drag, and increasing the speed of the craft. Optionally, such a composition may further comprise a cream wax.
Abstract:
A mould lubricant comprises a casting lubricant such as caster oil and a gaseous oxidation inhibiting agent such as sulphur hexafluoride (SF6). The mould lubricant can be used to lubricate a mould in the direct chill casting of a reactive metal such as magnesium.