149 results about "Metalworking fluid" patented technology

The present invention provides a refrigerating machine oil, a compressor oil composition, a hydraulic oil composition, a metalworking oil composition, a heat treating oil composition, a lubricating oil composition for machine tools and a lubricating oil composition which comprise a lubricating oil base oil having % C_A of not more than 2, % C_P/% C_N of not less than 6 and an iodine value of not more than 2.5.

Metalworking fluids contain active sulfur, a certain kind of inactive sulfur called “available sulfur”, and fat in a base oil of a lubricating viscosity. The metalworking fluids are chlorine free and phosphorous free. Boundary lubrication is provided by the fat, while extreme pressure lubrication is provided by the sulfur. Available sulfur is inactive sulfur minus any contribution of inactive sulfur from sulfurized saturated fats. Active sulfur and available sulfur are present in balanced proportions, while fat is present at an amount effective to provide boundary lubrication. Use of the fluids reduces tool wear over a long period of action and over a variety of boundary and extreme pressure conditions.

The present invention relates to a lubricating composition containing an alkali metal borate. The invention further provides for a method of lubricating a device with grease or a metalworking fluid by employing the lubricating composition containing the alkali metal borate.

The process relates to composition of metalworking fluid and for its preparation based on heavy alkyl benzenes having 22 to 26 carbon atoms to replace mineral oil and process for the same. A process for heavy alkylate based less toxic metalworking fluid composition comprising of heavy alkyl benzene, one emulsifier which is a sodium oleate, sulfonate or mixtures thereof, a vegetable oil as lubricity booster, an antioxidant, a fungicide, an extreme pressure additive, an antirust, a co-surfactant, a coupling agent and alkali component. The process comprising of removing of insoluble matter from the heavy alkylate, addition of emulsifier, additives, coupling agent and co-surfactant, homogenizing the mixture at 20-120° C., followed by conditioning of the metal working fluid concentrate which can be used as emulsion in water.

Non-oil containing metalworking fluids, also known as synthetic metalworking fluids having an engineered particle size of greater than 120 nanometers upon dilution. The expansive particle size results in a substantial increase in lubricity, suitable for the heavy-duty operations previously attainable only with oil-containing products. Additionally, this non-oil containing metalworking lubricant optionally incorporates positive attributes of oil-containing products, including excellent corrosion inhibition and heavy-duty operation capable lubricity.

The invention belongs to the field of metal processing fluids and discloses an environment-friendly semisynthetic cutting fluid for titanium alloys as well as a preparation method and an application of the cutting fluid. The cutting fluid comprises components in percentage by mass as follows: 20%-30% of base oil, 4%-6% of a lubricant, 6%-10% of an extreme pressure agent, 10%-15% of mixed alcohol amine, 4%-8% of an anti-rusting agent, 2%-4% of a pH (potential of hydrogen) stabilizer, 15%-25% of a surfactant, 1%-2% of a hard water stabilizer, 1%-3% of a coupling agent, 2%-4% of a sterilizing mildew preventive and the balance of water. The cutting fluid doesn't contain mineral oil, sulfur, phosphorus, chlorine, boron, phenol, formaldehyde, secondary amine, heavy metals, sodium nitrite and other poisonous and harmful substances and is environment-friendly. The cutting fluid has excellent extreme pressure performance for lubrication, rust prevention and corrosion prevention performance and hard water stability and long service life, and can meet requirements of cutting processing including turning, milling, boring, drilling, tapping and the like of various titanium alloys, the titanium alloy processing efficiency can be improved by 40%, and the service life of a cutting is prolonged by 30%.

A metalworking fluid composition comprising an isomerized base oil having consecutive numbers of carbon atoms and less than 10 wt % naphthenic carbon by n-d-M is provided. The metalworking fluid has reduced mist formation, low foaming tendency and excellent air release properties, and excellent wear properties.

An automatic system for monitoring/controlling a variable of a machine or metalworking fluid system also achieves cleaning and optionally, a calibration check of the sensor of the variable. The system includes one or more sensors for variables such as pH, fluid concentration, conductivity, temperature and the like, a supply of a cleaning agent and associated valves and conduits for connecting the automatic system to a fluid to be measured. A cleaning cycle can be scheduled as necessary to clean and/or check calibration of the sensors and ensure accurate measurement of sensed variables. If desired, the data regarding the sensed variables may be utilized to perform corrective action in real time.

A method for production and storage of hypochlorous acid is disclosed. The method comprises using high purity water achieved by a combination of softening and reverse osmosis steps. The shelf life is further improved by storing the hypochlorous acid in opaque PET bottles or Nylon/PE bags or nylon bags in a box. Solutions stored in opaque PET bottles exhibit the best stability. Anticipated uses of the extended life hypochlorous acid solution include sanitizer for food contact and non-food contact surfaces, a streak-free cleaner for smooth surfaces and a cut flower life extender. Other biocide uses include water treatment in oil and gas production, cooling tower, lazy river and swimming pools, process water distribution systems, drinking water, portable humidifier, fish tanks and treatment of metalworking fluids and lubricants.

The present invention relates to composition of metalworking fluid based on heavy alkyl benzenes having 20 to 22 alkyl carbon atoms and process for the preparation thereof. The heavy alkyl benzene based, less toxic, soluble metalworking fluid composition comprises heavy alkyl benzene, emulsifier, lubricity booster, antioxidant, fungicide, extreme pressure additive, antirust, co-surfactant, coupling agent and alkali component. The process comprises tailoring the heavy alkyl benzene, removing of insoluble matter from the heavy alkylate, addition of emulsifier, additives, coupling agent and co-surfactant, homogenizing the mixture at 20-120° C., followed by conditioning of the soluble metal working fluid concentrate which can be used as emulsion in water.

An aqueous based metalworking fluid that is environmentally friendly and process for metalworking with the fluid. The metalworking fluid is sampled at periodic intervals and replenished to predetermined operating specifications with the aqueous based metalworking fluid without the need for individual boosters.

The embodiment of the invention discloses a castor oil modified multi-functional lubricant prepared through a polymerization reaction of the following raw materials: refined castor oil, straight-chain or branched-chain dibasic acid and polypropylene glycol or polyethylene glycol; the invention also discloses a preparation method of the castor oil modified multi-functional lubricant. The method comprises the steps: mixing the refined castor oil, the straight-chain or branched-chain dibasic acid and polypropylene glycol or polyethylene glycol, introducing nitrogen for protection, adding a certain amount of a catalyst, undergoing the polymerization reaction at a certain temperature to a certain viscosity, cooling, vacuumizing and dewatering, and thus obtaining the finished product. Compared with a conventional lubricant base oil mineral oil, the castor oil modified multi-functional lubricant prepared by the method is a plant oil-based lubricant, is renewable, is biodegradable easily, has good lubricity and extreme pressure performance, is easy to emulsify, can be used as a lubricant to replace mineral oil and is ideally applied in oil-based and water-based metalworking fluid formulas.

A wear-indicating metalworking fluid is provided that includes a lubricant base; and a wear-indicating agent. A method of determining wear in a metalworking fluid includes providing wear-indicating metalworking fluid that contains a lubricant base and a wear indicating agent; and observing the visual appearance of the metalworking fluid. A change in visual appearance of the metalworking fluid when compared to an unused metalworking fluid indicates wear of the metalworking fluid.

A method for suppressing the growth of mycobacteria associated with hypersensitivity pneumonitis, in particular Mycobacterium immunogenum, in metalworking fluids is described. The method uses antimicrobial or biocidal compositions which include a metal complex comprising disodium monocopper (II) citrate and an isothiazolone mixture preferably comprising 5-chloro-2-methyl-4-isothiazolin-3-one 2-methyl-4-isothiazolin-3-one. Also described are methods for detecting and identifying the mycobacteria.

A first metalworking fluid of the present invention is characterized by containing an ester oil and a hydrocarbon oil having a kinematic viscosity of 1-20 mm<2>/s at 40 1/2 C. A second metalworking fluid of the present invention is characterized in that it contains an ester oil as the base oil and has a moisture content of 200-20,000 ppm. The first and second metalworking fluids are excellent in characteristics of a water-insoluble oil solution for nonferrous metalworking and also excellent in characteristics of an oil solution for cutting/grinding wherein a very slight amount of the oil solution is supplied. These metalworking fluids enable to improve the processing efficiency, and also enable to make life of a processing tool longer.

Polymeric polyol ester additives for metal working applications are described that have lower pour points and improved solubility in API Group II and III basestocks. The polymeric polyol ester contains linear monocarboxylic acid, alkanedioic acid, alk(en)yl substituted succinic acid or anhydride, trihydric alcohol and pentaerythritol.

The invention provides a high-property water-based emulsion cutting fluid composite, belonging to the field of metalworking fluid products. The composite is a water soluble product and comprises mineral oil, pentaerythritol fatty acid synthetic esters, a compound acidamide anti-rusting agent, an emulsifier, a corrosion inhibitor, a sulfide aliphatic acid ester extreme pressure lubricant, a bactericide and a defoamer; wherein, the compound acidamide anti-rusting agent is the composite of a component A, namely polycarboxylic acid hydramine acidamide and a component B, namely a mixture of triazole and a cosolvent butyl ether diglycol, thereby obviously improving the anti-rusting property of the product and broadening the anti-rusting applicability of diverse metals. The components of the composite product of the invention are scientific and reasonable in selection and use and balanced and harmonious in proportioning, thus achieving the effects of complementary action and synergy, therefore, the water-based emulsion cutting fluid of the invention not only enjoys high lubricating property, high anti-rusting property, high emulsibility, high antibacterial ability and high stability and has long service life, but also produces no pollution to the environment, does no harm to human bodies and satisfies the requirements of high-difficulty machining on the cutting fluid.

A composition of a water-soluble metalworking fluid used in metal machining is formed by adding 5 to 70 wt % additive to 5 to 95 wt % distillation residues that is generated in production of biodiesel and used as lubricating base oil, and 0 to 70 wt % ion exchange water.

Sustainable lubricant compositions made from recycled thermoplastic polyesters and other reclaimed or biorenewable reactants and a method of formulating them are disclosed. The lubricant compositions comprise a polyester base oil, which incorporates recurring units from a digested thermoplastic polyester, a low-molecular-weight polyol, and C₈-C₂₄ fatty acid. The base oil has a number-average molecular weight within the range of 300 to 5000 g/mol, a hydroxyl value less than 50 mg KOH/g, and a viscosity at 40° C. less than 5000 cSt. Some of the lubricant compositions comprise the polyester base oil and one or more additives including anti-wear agents, corrosion inhibitors, antioxidants, thickeners, detergents, and the like. The lubricants have properties that rival those of commercial products made from nonrenewable hydrocarbon blends or polyol esters and are useful for many practical applications such as internal combustion engine oils, gear lubrication oils, hydraulic oils, compressor oils, metal working fluids, and lubricating greases.

The invention discloses a treatment agent and treatment method for regeneration and recycling waste water-based metal working fluid. The treatment agent comprises the following raw materials in percentage by weight: 20-30% of an emulsifier, 10-15% of an alkali regulator, 3-5% of an antibacterial agent, and 2-5% of a non-ferrous metal corrosion inhibitor, with the balance being deionized water, summing to 100%, wherein the emulsifier is one or a mixture of two or more selected from the group consisting of NEUF192, self-emulsifying ester Priolube, T-80, castor oil polyoxyethylene ether, polyethylene glycol laurate and polyethylene glycol oleate. According to the invention, residual effective components are effectively utilized to emulsify and dissolve invaded lubricating oil and to convert the lubricating oil into effective components of the metal working fluid for utilization, and effective components in the waste working fluid are not damaged; the regenerated waste metal working fluidcan stably operate in a machine tool for a long time and guarantees that metal processing process is smoothly carried out; and the regenerated fluid returns to a machining workshop to be continuouslyused, so emission is truly avoided, and no secondary pollutants are generated.

Provided is a culture medium for microorganisms present in contaminated working fluids such as coolants. More particularly, said culture medium is particularly suitable for supporting growth of microorganisms colonizing metalworking fluids and allows for specific detection of both bacterial microorganisms and fungal microorganisms the latter depending on the added selective agents which can be antibiotics for the detection of fungal contamination or fungicides for the detection of bacterial contamination. Furthermore, devices and kits comprising the culture medium of the present invention are described as well as a method of detecting microbial contamination of metalworking fluids.

The invention provides a metalworking fluid which contains (A) a base oil including 2-ethylhexanol palmitate or 2-ethylhexanol stearate, and (B) an anionic surfactant that is a salt of a branched aliphatic carboxylic acid having 8 to 18 carbon atoms with a branched alkanolamine having 3 to 12 carbon atoms. The metalworking fluid of the invention is excellent in the cutting performance, anti-foaming properties, stability of stock solution, emulsion stability and resistance to hydrolysis, and shows low kinematic viscosity at low temperatures.

A water-based, recyclable metalworking fluid comprises a polyalkylene glycol, an alkanolamine, a polyglycol surfactant, a polyol surfactant, a biocide and a corrosion inhibitor. The biocide may comprise a mixture of biocidal compounds effective against bacterial and fungal organisms. The material may also include an isoalkoxy amine oxide and a glycol ether. The composition may also include ancillary ingredients such as viscosity controlling agents, defoamers, coloring agents and the like. It is a notable feature of the composition of the present invention that it is free of hazardous materials and fatty acids. Also disclosed is a method for using the composition in a metal-shaping operation.