470 results about "Extreme pressure additive" patented technology

The invention provides an open gear grease composition, which comprises the following components and the weight percentage contents are that gelatinizer 2-6%, mineral oil 20-60%, synthetic oil 20-60%, antioxidant 0.3-1%, oil solubility anti-wear extreme pressure additive 1-15%, solid additive 3-20% and rust inhibitor 1-3%. The open gear grease composition of the invention does not contain dissolvent and bitumen, which has no harmless to environment, and solves the problems that bitumen-type open gear oil has bad pollution and low-temperature performance, and the flowability of open gear grease is bad. The open gear grease composition has outstanding water resistance, adhesiveness and antiwear and extreme pressure property.

The invention discloses anticorrosive, anti-fading and environmentally-friendly water-based magnesium alloy cutting fluid. The anticorrosive, anti-fading and environmentally-friendly water-based magnesium alloy cutting fluid is prepared from the following components in percentage by mass: 5 to 10 parts of base oil, 5 to 15 parts of an oiliness agent, 10 to 25 parts of organic amine, 5 to 15 parts of a synthetic rust inhibitor, 15 to 25 parts of a functional polyether surfactant, 0.2 to 3 parts of an extreme pressure additive, 3 to 8 parts of a solubilizer, 0.1 to 2 parts of a metal corrosion inhibitor, 0.1 to 2 parts of a magnesium alloy anti-fading agent, 0.1 to 2 parts of a bactericide, 0.1 to 1 part of an antifoaming agent, 0.1 to 10 parts of a pH regulator and 15 to 30 parts of water. The nticorrosive, anti-fading and environmentally-friendly water-based magnesium alloy cutting fluid is outstanding in ticorrosive and lubricating and has water resisting performances, and is high in cleaning and cooling effects, and effectively reduces the major technical problems such as corrosion, oxidative combustion, fading of magnesium alloy, demulsification and layering of the cutting fluid in the magnesium alloy processing process; the pH ranges from 9 to 11, and therefore, the demand of magnesium alloy cutting process can be met well.

A lubricating oil composition for transmissions comprises a lubricating base oil comprising (A) a lubricating base oil so adjusted to have a kinematic viscosity at 100° C. of from 1.5 to 5 mm²/s and a % C_N of from 10 to 60 (B) a mineral lubricating base oil having a kinematic viscosity at 100° C. of from 10 to 50 mm²/s and a sulfur content of from 0.3 to 1 percent by mass and (C) a synthetic oil composed of carbon and hydrogen and having a number average molecular weight of from 2,000 to 20,000, in respective specific amounts and (D) an extreme pressure additive of from 0.05 to 2 percent by mass, based on the total amount of the composition, of comprising a phosphorus-based extreme pressure additive, a sulfur-based extreme pressure additive and/or a phosphorus-sulfur-based extreme pressure additive, wherein in the composition, the phosphorus content (P) is from 0.01 to 0.05 percent by mass, the total sulfur content (S) is from 0.05 to 0.3 percent by mass, and the P/S ratio is from 0.10 to 0.40. The lubricating oil composition has both excellent fuel economy performance and satisfactory durability for gears and bearings and furthermore excellent low temperature viscosity and oxidation stability.

The present invention discloses a water-based cutting fluid for vermicular cast iron processing, and a dilution solution thereof. The water based cutting fluid comprises 3-10% of an anti-rust additive, 4-10% of fatty acid amide, 2-3% of organic amine, 3-10% of long-chain fatty acid, 2-5% of fatty alcohol polyoxyethylene ether, 5-8% of petroleum sodium sulfonate, 1-5% of a coupling agent, 10-15% of an extreme pressure additive, 15-20% of a synthetic ester, 1-2% of a sterilization agent, 0.5-1.0% of an anti-forming agent, and 32-45% of water, wherein the anti-rust additive is a boric acid anti-rust additive and dicarboxylic acid, and the coupling agent is a fatty alcohol and/or aliphatic ether. The water-based cutting fluid of the present invention has characteristics of good lubrication performance, good cooling performance, good anti-rust property, no chlorine, diamine, nitrite and other nitro compounds, no environmental pollution, no irritating odor, easy cutting, easy powder settlement, and effective cutter service life prolonging.

The invention discloses a highly-efficient lubricant for a drilling fluid. The highly-efficient lubricant comprises the following components in percentage by weight: 10 to 40 percent of white oil, 30 to 70 percent of fatty acid methyl ester or methyl oleate, 5 to 20 percent of polyester, 2 to 8 percent of organic phosphate, 1 to 6 percent of oilness extreme-pressure additive, 0.5 to 2 percent of emulsifier OP-10 and 0.5 to 2 percent of span-80. The invention also discloses a method and steps for preparing the highly-efficient lubricant for the drilling fluid. The highly-efficient lubricant can enhance the lubricating property of the drilling fluid and increase an extreme pressure value of the drilling fluid, and is suitable for the demand of ordinary drilling and use in a high-difficulty highly deviated directional well and a horizontal well.

Lubricants, especially lubricating oils, and fuels, especially hydrocarbon fuels, contain a class of anti-wear, anti-fatigue, and extreme pressure additives that are derived from silanes. The additives can be used as either partial or complete replacements for zinc dialkyldithiophosphates currently used in lubricants and fuels.

A transmission fluid composition for automobiles comprises a lubricating base oil, (A) an oil-soluble metal salt overbased with a specific alkaline earth metal borate, and (B) a sulfur-containing extreme pressure additive. The transmission fluid can enhance a metallic friction coefficient, leading to the achievement of improved transmission torque.

The invention relates to a micro emulsion cutting fluid composition and a preparation method thereof. The composition comprises the following raw materials in percentage by weight: 22-32 mineral oil, 2-10 anionic surfactant, 1-5 nonionic surfactant, 1-3 emulsion stabilizer, 5-10 oiliness additive, 5-10 extreme pressure additive, 5-15 rust-inhibiting additive, 0.5-3 anticorrosion fungicide, 0.1-0.3 antifoam additive and the balance of water. The preparation method of the micro emulsion cutting fluid composition is simple and convenient, the provided cutting fluid S50 composition is an ecological stable product and has good lubricity and cooling performance, and the machining accuracy of workpieces can be improved. The cutting fluid S50 composition has strong antimicrobial capability, long service life and good PH value stability and provides good rust-inhibiting performance for the workpieces.

The invention provides an additive composite for gear lubricating oil, comprising (A) a certain amount of mineral oil, (B) at least one type of extreme pressure additive with sulfurs, (C) at least one type of anti-wear additive with phosphors, (D) at least one type of anti-rusting additive, (E) at least one type of friction improver, and (F) at least one type of metal passivator. By adding the additive composite into base oil or into a mixture of the base oil according to weight percentage between 3.8 and 4.5, vehicle gear oil up to the indexes of GB13895-92(APIGL-5) standards is prepared. By adding the additive composite into the base oil according to the weight percentage between 0.6 and 1.2, industrial gear oil up to the indexes of GB5903-95 standards is prepared.

The invention discloses a steel cord drawing lubricant and a preparation method thereof, belonging to the filed of lubricants for metals. The lubricant is prepared from the following components by weight percent: 7-15% of oil additives, 8-10% of surface active agent, 7-10% of extreme pressure additives, 3-6% of solid additives, and the balance water and one or more of antirust additive, preservative, antifoaming agent or bactericide. The preparation method comprises the following steps: 1) weighting the oil additives, the surface active agent, the extreme pressure additives and the solid additive according to the weight proportion, mixing, heating to 140-150 DEG C, and mixing fully; 2) adding water (water percent), mixing, heating to 80-90 DEG C and mixing fully; and 3) mixing and dissolving the obtained mixture, and emulsifying fully, thus obtaining a homogeneous liquid, namely the end product. The lubricant has the characteristics of good lubricating effect, low consumption, high drawing speed, smooth steel tube surface, good quality, no corrosion and damage to pipelines and devices and quite low cost, and can ensure that the steel cord coating is undamaged, and the adhesive force between the steel cord and the rubber is enhanced.

The related composite poly-soap self-repair bearing lubricating grease comprises the basic liquid, composite calcium sulfonate, composite Ca-Li-base thickener, non-oxidizing anti-corrosion additive, metal deactivator, tungsten disulfide extreme pressure additive, wear-well additive, self-repair additive, and structural modifier; has well anti-oxidation ability and bearing capacity, can repair wore part on condition of extreme pressure and high temperature to supply the silver-plating lacking on bearing radial surface effectively, prolongs bearing service time on maximum limit, and has special application in oil drilling exploration.

The invention relates to high-extreme pressure water-resistant antirust lubricating grease and a preparation method thereof. The high-extreme pressure water-resistant antirust lubricating grease is prepared by the reaction of various substances by weight parts as follows: 43.5-77.5 parts of high-viscosity mineral oil, 7-10 parts of fatty acid, 0.7-1.0 part of lithium hydroxide, 0.3-0.5 part of calcium hydroxide, 10-30 parts of high base number calcium petroleum sulfonate, 1-3 parts of transforming agent, 1-3 parts of antirust agent, 1-3 parts of extreme-pressure additive, 0.5-1.0 part of antioxidant, and 1-5 parts of thickening agent. In the invention, the water comprehensive stability and water antirust performance of the lubricating grease are improved, and the water stability of the thickening agent and the extreme-pressure additive is improved.

The invention relates to spray supply mode cutting oil for metal material cutting processing, which is prepared from the following raw materials in parts by weight: 40-60 parts of base oil, 30-40 parts of vulcanized fat and 10-20 parts of phosphoric acid ester, wherein the base oil is vegetable oil or synthetic ester or a mixture of the vegetable oil and the synthetic ester; since the consumptionof the vulcanized fat and the phosphoric acid ester used as extreme pressure additives of the cutting oil is large, the cutting oil has good extreme pressure lubricating performance, thereby ensuringthat process requirements are satisfied by consuming a minute quantity of cutting oil when the cutting oil is used for the cutting processing and spray oil supply of difficultly processed materials; and the adopted raw materials are biodegradable and have no toxicity to human bodies, small damage to ecological environment and low pollution.

The invention provides a gear lubricant composite for manual transmissions of the light cars, comprising (A) at least one type of refining mineral oil with high viscosity index, or polyolefin synthesis oil, or ester lubricants, or a free composite of the above components, (B) at least one type of viscosity index improver, (C) at least one type of pour point depressant, (D) at least one type of extreme pressure additive with sulfurs, (E) at least one type of anti-wear additive with phosphorus, (F) at least one type of wear, oxygen, and corrosion-preventing multifunctional additive with phosphorus, (G) at least one type of anti-rusting additive, and (H) at least one type of friction modifier. The lubricant composite has excellent performance of high and low temperature, which can meet the requirements of gear oil with a viscosity grade of 75W/90. Moreover, passing the full-size gear bench tests as CRCL-42, L-37, L-33, L-60, and L-60-1 as well as cycle bench tests for the manual transmissions of the light cars, the gear lubricant composite can meet lubrication requirements of the manual transmissions of the light top-grade cars.

The invention relates to a urea grease composition and a preparation method thereof; the urea grease composition consists of base oil, thickener and additive; wherein, the base oil is various mineral base oil, synthetic oil or the mixture of the mineral base oil and the synthetic oil, and the base oil accounts for 85 percent to 95 percent of the total amount of the grease; the thickener is composed of diurea compound and the amount of the thickener accounts for 4 percent to 15 percent of the total amount of the grease; the additive consists of T361A borate extreme pressure and antiwear additive, anti-oxidant and anti-corrosion additive and anti-oxidant; wherein, the addition amount of the borate extreme pressure and antiwear additive accounts for 1 percent to 3 percent of the total amount of the grease, the addition amount of the anti-oxidant and anti-corrosion additive accounts for 0.5 percent to 2 percent of the total amount of the grease and the addition amount of the anti-oxidant accounts for 0.3 percent to 1 percent of the total amount of the grease; the invention combines the advantages of the borate and the traditional sulfur-phosphorous additive and the urea grease added with the borate extreme pressure and antiwear additive still has excellent water resistance, thus improving the comprehensive performance of the product and reducing the cost.

The invention relates to an oil product of a petroleum chemical product, and especially relates to multi-station cold heading oil and a preparation method thereof. According to the method, a deep refining mineral oil is taken as a base oil, an extreme pressure additive, an anti-rust agent, an oiliness additive, an anti-foaming agent, and animal and vegetable oil are added by blending, the cold heading oil comprises the following components by weight: 75% of base oil, 6% of extreme pressure additive, 3.7% of anti-rust agent, 8% of oiliness additive, 2.3% of anti-foaming agent and 5% of animal and vegetable oil. The cold heading oil is suitable for a cold heading machine, and has the advantages of good extreme pressure abrasion resistance, good antirust performance and anti-foaming performance, so that the usage life of the cold heading machine can be increased.

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.

The invention provides a lube base oil other than silicone oil having a kinematic viscosity of 12 mm²/s or below at 40° C., exhibiting, in Noack test (250° C., 1 hr), an evaporation loss of 30 mass % or below and/or a flash point of 200° C. or higher, and exhibiting an aniline point of 60° C. or higher. There is also provides a lubricating oil composition comprising the lube base oil mixed with at least one additive selected from the group consisting of an antioxidant, a viscosity index improver, a detergent dispersant, a friction reducing agent, a metal inactivator, a pour point depressant, an abrasion resisting agent, a defoamer, and an extreme-pressure additive. The lube base oil and the lubricating oil composition realize reduction of evaporation loss despite being of low viscosity and excellent compatibility with organic materials.

The invention provides total-synthesis water-based cutting fluid for sapphire and a preparation method of the cutting fluid. The cutting fluid for the sapphire comprises the following components of: in percent by weight, 8-25% of lubricant, 2-10% of rust inhibitor, 2-7% of an extreme-pressure additive, 0.25-2% of a settling agent, 0.5-3% of fungicide, 0.2-0.8% of a wetting agent, 3-5% of a cosolvent, 4-15% of pH stabilizer, 0.2-0.8% of defoamer and the balance water. According to the total-synthesis water-based cutting fluid for the sapphire, the reasonable additives are adopted for compounding, lubricating and wetting permeation performance of the cutting fluid are better than common water-based cutting fluid for sapphire, the total-synthesis water-based cutting fluid for the sapphire canreach the level of oil-based cutting fluid for the sapphire, and meanwhile the defects of poor powder sedimentation, large oil mist, potential risks for open flames, difficult post-processing and thelike of the oil-based product are avoided.

The invention relates to a strengthened grinding method for wear-resisting alloy steel workpiece surface. The method comprises the steps of ejecting a mixture to the surface of a wear-resisting alloy steel workpiece with speed of 100-300 m/s and an ejecting angle of 15-75 degrees, and completely covering the surface of the wear-resisting alloy steel workpiece by ejecting points, wherein the mixture is composed of steel balls, grinding powder and strengthened grinding modified liquid with the mass ratio of the steel balls to the grinding powder to the strengthened grinding modified liquid of (1:1:1) to (5:1:3); the steel balls are cast steel balls or bearing steel balls with the hardness greater than 62 HRC (rockwell hardness) and the diameter of phi1-phi8; the strengthened grinding modified liquid is composed of the following raw materials by weight percentage: 15%-25% of extreme pressure additive, 2-3% of corrosion remover, 10-15% of penetrant, 4-6% of pH conditioning agent, 2-8% of non-ionic surface active agent, 2-5% of pH buffering agent, 0.3-0.8% of softener, 1% of alkali, 0.1-0.2% of defoamer, 0.2-0.5% of antirust agent and the balance of water. By utilizing the strengthened grinding method, strengthened treatment can be carried out on the wear-resisting alloy steel workpiece surface in the grinding process of ejecting a grinding material so as to prolong the fatigue life and improve the surface hardness of a workpiece.

The invention discloses a high-performance environment-friendly water-soluble punching oil which is composed of high-polymer carboxylic acid, organic amine, higher alcohols, a surfactant, vegetable oil or synthetic lubricant, a vulcanizing extreme pressure additive, a chlorination extreme pressure additive, pure water, a defoaming agent and a preservative. The punching oil has superhigh lubricating property; after the product is diluted by 30 times, the tapping torque is less than or equal to 3000 N.cm, the cutter life is long, and the single batch cutter part processing quantity is greater than or equal to 300000. When adopting design formula of excellent-biodegradability vegetable oil (or synthetic fat) and other assistants, after the product is diluted by 30 times, the BOD/COD (biochemical oxygen demand/chemical oxygen demand) is greater than or equal to 0.6.

The invention relates to a high-temperature extreme-pressure bentonite grease lubricant. The grease lubricant comprises the following components, by weight 80-95% of base oil, 5-15% of a thickener, 5-20% of an extreme pressure additive and 10-30% of an active dispersant, wherein the base oil is one of a mineral oil and a synthetic oil or a mixture of the two oils, and the extreme pressure additive is a solid lubricant. A preparation method of the grease lubricant comprises the following steps: fully stirring the base oil and the extreme pressure additive to uniformly mix them, adding the thickener, continuously fully stirring to uniformly mix, adding the active dispersant, stir-mixing for a certain amount of time, and grinding to uniformly disperse to obtain the grease lubricant. The grease lubricant of the invention has good high temperature performances, a good colloid stability, and a good mechanical stability, and is especially suitable for mechanical lubrication parts working under high-temperature heavy-load high-pollution conditions.

The invention relates to a high-temperature grease and a preparation method thereof, which are widely applied to equipment bearings of production lines in steel mills and steel works. The high-temperature grease contains the following components in weight parts: 45 to 81.5 parts of high-viscosity mineral oil, 4 to 10 parts of polyurea, 10 to 30 parts of high-base number calcium petrolem sulfonate, 1 to 3 parts of transforming agent, 1 to 3 parts of anti-rust agent, 1 to 3 parts of extreme-pressure additive, 0.5 to 1 part of antioxidant, and 1 to 5 parts of thickening agent. The high-viscosity mineral oil is 150BS. The high-temperature grease has higher dropping point, does not turn thin or has lower thinning degree after meeting water; the antirust performance is as good as the new grease after meeting water; and the extreme-pressure performance thereof is reduced by a lower degree or does not reduce after meeting water.

The water insoluble cutting oil consists of base oil, grease, sulfide extreme pressure additive, lubricant agent, antioxidant and mist inhibitor mixed together. The product of the present invention excellent extreme pressure lubricating performance, and is suitable for low speed high load cutting to raise service life of cutting tool and ensure excellent machining surface. It is used as common cutting oil for broaching and forming gear, has excellent use effect, no uncomfortable smell and no harmful matter, and is good for environment protection.

The invention discloses a gear oil composition for an automobile. The gear oil composition for the automobile comprises viscosity blend base oil, a sulfur-containing extreme pressure additive, a phosphorus-containing wear-resistant additive, an antirust additive, a metal passivator and a synthetic ester oiliness additive, wherein the synthetic ester oiliness additive may be one or more of trimethylolpropane trioleate, octyl stearate, butyl stearate, isooctyl stearate and isooctyl palmitate; and the synthetic ester oiliness additive accounts for 2 to 10 percent of the total weight of the gear oil composition. The gear oil has the advantages of high wear resistance, high maximum non-seizure load, high load-bearing capacity, high viscosity index, high low-temperature flowability, high lubricating property and the like, is suitable for the lubrication of an automobile manual gearbox and a rear drive axle gear and is also suitable for an automobile automatic gearbox.