228 results about "Metal working fluid" patented technology

The invention discloses a water-soluble total-synthesis metal working fluid and application thereof. The working fluid is prepared from the following raw materials in percentage by weight: 1wt%-30wt% of a lubricant, 1wt%-40wt% of a corrosion inhibitor, 1wt%-40wt% of organic amine, 1wt%-20wt% of a cleaning agent, 1wt%-20wt% of a coupling agent, 0.5wt%-5wt% of an antifoaming agent and the balance of water. The working fluid can form water-based steam with anti-rust property in an induction manner in the use procedure, so that the problem of rusting caused by steam which is easily generated by a closed machine tool is solved, and therefore, the working fluid is suitable for a high-precision machine tool, especially a numerical control machine tool with a closed structure.

To provide a working fluid which has cycle performance sufficient as an alternative to R410A while the influence over global warming is sufficiently suppressed, which does not significantly increase the load to an apparatus as compared with a case where R410A is used, and which can be stably used continuously without any special measures, a composition for a heat cycle system comprising the working fluid, and a heat cycle system employing the composition.

A working fluid for heat cycle, wherein the global warming potential is less than 300; the product of the relative coefficient of performance and the relative refrigerating capacity is at least 0.820 relative to R410A in a standard refrigerating cycle under conditions of an evaporation temperature of 0° C., a condensing temperature of 40° C., a supercoiling degree of 5° C. and a degree of superheat of 5° C.; the relative compressor discharge gas pressure is at most 1.100; the lower limit of the combustion range by method A in High Pressure Gas Safety Act is at least 5 vol %; and the pressure will not exceed 2.00 MPaG in a combustion test by method A in High Pressure Gas Safety act under 0.98 MPaG at 250° C.

The invention relates to an environment-friendly safe solvent cleaning agent which specifically comprises the following components in parts by weight: 0-97 parts of C10-C12 alkanes, 3-100 parts of alcohol ether solvent, 0.00-0.01 part of antioxidant and 0.00-0.01 part of corrosion inhibitor. The environment-friendly safe solvent cleaning agent provided by the invention is narrow in boiling range and the distillation recovery rate of the environment-friendly safe solvent cleaning agent can be above 95%; the environment-friendly safe solvent cleaning agent is also high in clearing ability, and has strong cleaning ability for polar dirt and nonpolar dirt; especially, the environment-friendly safe solvent cleaning agent can be used for thoroughly cleaning various metal working fluids, and oil-based and water-based cutting fluids without any residual and corrosion on metals; moreover, the shortcoming that the previous hydrocarbon type cleaning agents are wide in boiling range and only capable of dissolving and cleaning the nonpolar dirt are overcome. The cleaning agent is perfect in balance of cleaning ability, safety, dryness and reproducibility.

To provide a working fluid for heat cycle having a low global warming potential and having high durability, which can replace R410A, a composition for a heat cycle system comprising it, and a heat cycle system employing the composition.

A working fluid for heat cycle, which contains trifluoroethylene, 2,3,3,3-tetrafluoropropene and difluoromethane, wherein the proportion of the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene and difluoromethane based on the entire amount of the working fluid is higher than 90 mass % and at most 100 mass %, and based on the total amount of trifluoroethylene, 2,3,3,3-tetrafluoropropene and difluoromethane, the proportion of trifluoroethylene is at least 10 mass % and less than 70 mass %, the proportion of 2,3,3,3-tetrafluoropropene is at most 50 mass %, and the proportion of difluoromethane is higher than 30 mass % and at most 75 mass %.

A method using one or more of certain triazoles in an amount effective to reduce cobalt leaching during a metal working process from a metal working tool comprising cobalt, such as tungsten carbide particles bonded by cobalt, wherein the one or more triazoles comprise at least butyl-benzotriazole, and optionally one or more other benzotriazoles. Also, a composition is provided which comprises a metal working fluid and one or more of these triazoles in an amount effective to reduce cobalt leaching from metal working tools comprising cobalt, such as tungsten carbide particles bonded by cobalt.

The invention discloses an environment-friendly emulsion cutting oil with high lubricity and high permeability for metal working. The emulsion cutting oil is composed of a polymer carboxylic acid, an amine, a surfactant, mineral oil, a synthetic lubricant, a defoamer and an anti-corrosive agent. The emulsion cutting oil disclosed by the invention causes small pollution during processing, has excellent lubricity and permeability, and is safe to human and environment.

The invention discloses a salt resistant high-temperature resistant solid-free environment-friendly well drilling and completing integrated working fluid. Every cubic meter of the solution comprises the following components by mass: 10-260 kg of formate, 0.5-0. 6 kg of tackifier, 3.0-4.0 kg of fluid loss additive, 2.0-3.0 kg of oil layer protectant, 2.0-3.0 kg of polyol anti-sloughing agent and the balance water. The well drilling and completing integrated working fluid has scientific and reasonable formula and is a salt resistant high-temperature (230 DEG C) resistant solid-free degradable environment-friendly novel working fluid, overcomes the defects of the prior art, has good rheological property, low shear force value, low system filtration loss, good compatibility and low cost and is environment-friendly.

The invention discloses a high-performance environmentally-friendly semisynthetic water-soluble metal working fluid which is composed of an organic acid, organic amine, a corrosion inhibitor, a synthetic lubricant, a surfactant, water and a defoaming agent. By compounding the organic acid, organic amine and a specially modified synthetic polymer compound used as the lubricant with multiple corrosion inhibitors, an anticorrosion agent and the surfactant, the product has excellent lubrication property and penetration property, and can be used for greatly improving the surface finish degree and prolonging the service life of a cutter; the product has the advantages of good impure oil resistance, sterilization and corrosion prevention properties and obviously prolonged service life of the product; the product is a stable semisynthetic liquid, and can provide cooling property and cleaning property better than emulsion; and the product is environmentally-friendly, and is the high-performance environmentally-friendly semisynthetic water-soluble metal working fluid.

A working fluid for heat cycle which has a low global warming potential and which has self-decomposition property suppressed, a composition for a heat cycle system comprising it, and a heat cycle system employing the composition.

A working fluid for heat cycle, which contains trifluoroethylene and 2,3,3,3-tetrafluoropropene, wherein the proportion of the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene based on the entire amount of the working fluid is higher than 90 mass % and at most 100 mass %, and the proportion of trifluoroethylene based on the total amount of trifluoroethylene and 2,3,3,3-tetrafluoropropene is at least 21 mass % and at most 39 mass %, a composition for a heat cycle system, which comprises the working fluid for heat cycle, and a heat cycle system, which employs the composition.

The present invention relates to an emulsion comprising at least (a) an organic phase, (b) a water phase and (c) an ester based on an ether carboxylic acid and an alcohol. Also within the ambit of the invention is the use of an ester as defined in (c) as emulsifier, as a thickening agent and/or as an anti-foaming agent in particular in drilling emulsions and metal working fluids.

The present invention provides an apparatus and method for sampling a metal working fluid and dispensing a corrective fluid to adjust the fluid in a tank or reservoir from which the sample was drawn. The apparatus, which in certain embodiments is transportable, includes an inlet configured to receive a fluid sample from a reservoir, a measuring station configured to determine at least one parameter of the fluid sample, a dispensing station configured to select a type and amount of fluid(s) to be added to the metal working fluid to restore its desired parameters, and an outlet configured to dispense the corrective fluid. The inventive apparatus provides an advantageous computerized comparison of the contaminates and concentrations of key constituents in a sample fluid against desired operating parameters and dispenses a corrective fluid, which, when added to the reservoir from which the sample fluid was drawn, corrects the adverse conditions of that fluid.

The invention relates to an organosilicon composition and preparation and application thereof and belongs to the technical field of fine chemical preparations. The invention is characterized in that the prepared organosilicon composition is composed of organosilicon active matter, polyether modified polysiloxane, saturated polyether and silicon dioxide. A preparation method comprises the following steps: (1) an organosilicon composition and saturated polyether are uniformly mixed to obtain a mixture I; (2) silicon dioxide and saturated polyether are uniformly mixed to obtain a mixture II; (3) after specific polyether modified polysiloxane is synthesized, the mixture I is added into polyether modified polysiloxane to obtain a mixture III; and (4) the mixture II is added into the mixture III so as to obtain the stable organosilicon composition. The prepared organosilicon composition is stable. The disadvantage that all the ingredients are not compatible with each other is solved. The organosilicon composition, as an internal additive, is applied to industrial auxiliary agents, such as a metal working fluid, a textile auxiliary agent, an industrial cleaning agent and the like. The organosilicon composition has excellent compatibility and antifoaming performance.

The invention discloses a novel water-based rust inhibitor and a preparation method and a use method thereof, belonging to the technical field of metal material corrosion prevention. The rust inhibitor can substitute for antirust oil and grease to prevent rust in the inter-process of metal processing and store and prevent rust of finished products, and also can be used as antirust additive of metal working fluid such as metal cutting fluid, grinding fluid, washing agent and the like, so as to reduce the antirust cost in metal processing and storage and conveying processes. The rust inhibitor is obtained by adopting the following technical scheme: combining 5-15wt% of organic zinc chelate, 5-10wt% of amide-type surfactant and 1-5wt% of water-soluble antirust additive.

The invention discloses a long-life high-load metal working fluid and a preparation method thereof. At least one of polyol ester, II type hydrogenated oil, epoxidized soybean oil and epoxidized rapeseed oil is taken as base oil, an emulsification lubricant, an extreme pressure agent, a preservative, an anti-rusting agent, an oil-water balance agent, an aid and a defoaming agent are added, and the metal working fluid is prepared. The prepared metal working fluid has a good lubricating extreme pressure property, is long in anti-rusting period and service life, belongs to an environment-friendly metal working fluid and can meet the working environment under high-load conditions of drilling, tapping, reaming and the like of cast iron, carbon steel, stainless steel, aluminum alloys and other materials, and the production efficiency is greatly improved.

The invention relates to a method for preparing a multifunctional environmentally-friendly boric acid ester surfactant. The method comprises the following steps of: mixing high-grade fatty acid with a polyatomic alcohol amine compound in the mass ratio of 1.0:(1.3-2.4), putting the mixture into an electrothermal reaction kettle, and reacting under the action of a catalyst at the temperature of 120-175 DEG C for 2-5 hours to obtain an alcohol amine intermediate; and uniformly mixing the alcohol amine intermediate obtained in the first step with boric acid in the mass ratio of 1.0:(0.04-0.1); reacting at the temperature of 110-150 DEG C for 1-2 hours, and cooling to obtain a multifunctional environmentally-friendly boric acid ester surfactant product. Due to the adoption of a preparation process, organic solvents such as methylbenzene, dimethylbenzene and the like are not taken as water-carrying agents, nitrogen protection is not required in the entire synthesizing process, and waste water, waste gas, pollutants and the like are not discharged in the producing and using processes; and the boric acid ester surfactant is an environmentally-friendly water-based metal working fluid additive.

The invention relates to a synthetic multiple-effect lubricant additive and a preparation method thereof and in particular relates to a fully-synthetic multiple-effect lubricant additive which does not contain S and Cl and takes a metal processing lubricant as a main product. The fully-synthetic multiple-effect lubricant additive is a mixture containing glycerol single ricinoleate, a carboxylic acid synthetic ester lubricant, iso-tridecanol polyoxyethylene ether, an antirust agent, amine phosphate, a non-ferrous metal corrosion inhibitor and a carboxyl hexyl-2-cyclohexene-1-octadeca-carbonic acid. The fully-synthetic multiple-effect lubricant additive has the advantages of good wear resistance, good anti-rust performance, good synergy and environmental friendliness. The fully-synthetic multiple-effect lubricant additive is applicable to blending emulsified oil, micro-emulsifying liquid, fully-synthetic metal working fluid, metal rolling liquid and metal molding working fluid as well as lubricating oil products such as water-based fire-resistant hydraulic oil.