What are the additives for hydraulic oil? 

Hydraulic oil is a kind of material with strong polarity, which can adsorb with metal surface at lower temperature and pressure, form a firm adsorption film, prevent direct contact between metal and metal, improve oil film strength, and reduce metal friction and wear. 

In hydraulic oil, the commonly used oiliness agents are oleic acid, vulcanized whale oil, vulcanized cottonseed oil (T404), vulcanized olefin cottonseed oil, dimeric acid, etc. 

What are the "additives" in hydraulic oil? 

Antiwear agent in hydraulic oil: at high friction temperature, the decomposition product of the antiwear agent reacts with the metal surface to produce a compound film with low shear stress and low melting point, which prevents the plastic deformation caused by the bite or welding of the contact surface, fills the uneven part between the friction surfaces, increases the contact surface, reduces the pressure and reduces the wear. 

Antiwear agents usually contain sulfur, phosphorus and chlorine, and their compounds have their own characteristics. 

The antiwear agent containing sulfur reacts with iron to form iron sulphide film under the condition of high temperature friction, while the antiwear agent containing phosphorus interacts with iron and steel at not too high temperature and mild friction conditions. a phosphate mixture with low melting point and high plasticity is formed, which plays an antiwear role. 

The antiwear agent containing chlorine produces ferric chloride film under extreme pressure. The film has a layered structure, low friction coefficient, easy shear and good lubrication. 

In hydraulic fluid, the commonly used antiwear agents are: zinc dialkyl dithiophosphate, trimethylphenyl phosphate, thiophosphate, vulcanized olefin, chlorinated paraffin and so on. 

Tackifier in hydraulic oil: tackifier is a kind of additive to improve the viscosity and temperature of hydraulic oil and increase the viscosity index. 

This is a kind of high molecular polymer, which shrinks and curls into compact spheres in the oil at low temperature, which has little effect on the viscosity at low temperature. at high temperature, it swells and extends in the oil to increase the viscosity, which can improve the viscosity-temperature properties. 

In hydraulic fluid, the commonly used tackifiers are: Poly (n-butyl vinyl ether), polyisobutylene, ethylene-propylene copolymer, polymethacrylate and so on. 

Antifoaming agent in hydraulic oil: antifoaming agent is a kind of substance that can reduce the stability of foam adsorption film and shorten the existence time of foam. Adding antifoaming additive to hydraulic oil can reduce the surface tension and make bubbles spill out of the oil surface quickly, thus eliminating bubbles. 

In hydraulic fluid, the commonly used antifoaming agents are: dimethyl silicone oil, polyester non-silicone antifoaming agent, metal soap, fatty acid and so on. 

Pour point depressant in hydraulic oil: pour point depressant is a kind of additive which can inhibit the formation of reticular crystallization of paraffin wax in oil, decrease the freezing point and maintain the fluidity of oil products. 

By adsorbing or forming eutectic on the paraffin crystal surface, the agent can change the crystal shape and size of paraffin wax to reduce the freezing point of oil products. 

In hydraulic fluid, the commonly used pour point depressants are alkylnaphthalene, polymethacrylate, α olefin copolymer, ethylene vinyl acetate polymer and so on. 

Antioxidants in hydraulic oil: antioxidants are a kind of additives that are easy to be oxidized and can form complex films on the metal surface, isolating contact with oxygen and other corrosive substances, and preventing the catalysis of metal oxidation and the corrosion of oil to metal. 

Generally, the combination of several antioxidant additives has a better antioxidant effect, such as the combination of sulfides and aromatic hydrocarbons will produce a synergistic effect; the compound of free radical Terminator and peroxide decomposer also has obvious synergistic effect. 

The antirust agent in hydraulic oil is a kind of polar compound, which can form a firm water-increasing adsorption film on the metal surface to prevent metal from rusting. 

In hydraulic oil, the commonly used antirust agents are: dodecenyl succinic acid, barium dinonylnaphthalene sulfonate, dodecenyl succinate of heptadecenyl Imidazoline and so on.

Oil aditives supplier

Luoyang Trunnano Tech Co., Ltd (TRUNNANO) is a professional oil aditives supplier with over 12 years experience in chemical products research and development. 

We accept payment via Credit Card, T/T, West Union and Paypal. Trunnano will ship the goods to customers overseas through FedEx, DHL, by air, or by sea.

When most people think of teflon, they think of non-stick cookware. However, there are many more uses for teflon than just cooking. Teflon, also known as polytetrafluoroethylene (PTFE), is a versatile synthetic material with an array of useful properties. It is resistant to heat, corrosion, and chemicals, making it an ideal material for coatings and applications in a variety of industries. In this article, we’ll discuss the use of teflon, who invented it, and its mechanical, thermal, and electric properties.

Teflon has high insulating properties, meaning that it absorbs very little heat and can retain the temperature of whatever it covers. This property makes teflon perfect for lining chemical tanks and pipes. It can withstand many corrosive chemicals, as well as molten alkali metals and fluorinating compounds. Teflon is also a good choice for electrical applications, as it can hold an electric charge very well and has low dielectric losses.

The automotive industry also makes extensive use of teflon. It is often used to coat various engine components, such as piston rings and bearings, to reduce friction and wear on these parts. This can significantly improve a vehicle’s performance, efficiency, and lifespan. Teflon is also used to create brake pads, as it helps to reduce brake dust and noise and increase the durability of these parts.

Another common application of teflon is in cosmetics and personal care products. Its non-sticky surface makes it an excellent ingredient in cosmetics and haircare products, as it can reduce the amount of grease that is applied to the skin or hair. Its non-reactive surface can also prevent damage to delicate facial tissues, such as eyes and lips. Additionally, teflon’s hydrophobic properties can help to keep makeup from smudging or running when it is applied to the face.

dry moly lubricant is an extreme load spray that works in conditions where liquid lubricants cannot be used. It uses a powdery coating of molybdenum disulfide to reduce friction and prevent wear between surfaces. It dries quickly and resists moisture, dirt and dust. It does not drip, run or cold flow and can withstand temperatures up to 1,450°F. It’s useful in a number of applications including gear and change lubrication, interlocking and reciprocating motions and as an anti-seize agent.

Graphite and molybdenum disulfide (MoS2) are both excellent dry film lubricants and both are often used as alternatives to oil-based lubricants in a variety of applications. Both have a low coefficient of friction, but MoS2 offers better corrosion resistance in stainless steel applications. This type of lubricant is also more environmentally friendly than oils because it’s non-toxic.

The Aervoe ToolMates dry moly lubricant is a high-purity aerosol spray that dries instantly with minimal transfer and leaves a strong, black lubricating film. Its formulation is designed to withstand stresses up to 100,000 pounds per square inch and provides superior lubricity and corrosion resistance. It’s inert to water, oil, alkalies and acids and is perfect for use on metals such as ferrous base and alloys. It works well in industrial plants, paper mills, oil rigs, foundries, auto shops and machine shops. It can also be used to lubricate parts in abrasive environments, such as grinding and crushing.

Many owner-operators and fleet managers are aware of the fuel savings associated with lower viscosity engine oil, but they may not know what exactly it does to improve performance and help drivers save money. The lower viscosity of low-ash oil allows it to move more freely throughout the engine, promoting better lubrication and cooling. This in turn reduces fluid friction and helps the engine run more efficiently, increasing fuel economy.

The numbers printed on the side of a can of engine oil, such as “5W-30,” indicate the viscosity of the oil. The first number indicates the low-temperature viscosity; the number after the letter “W” is the winter/cold testing rating. The grading system was established by the Society of Automotive Engineers (SAE). Oils that meet both low and high-temperature demands are identified by a number with no letter following the SAE viscosity grade (example: multi-viscosity, 10W-40).

When choosing an engine oil, it is important to remember to select the correct one for your vehicle’s working conditions and environment. It is also a good idea to follow the recommendations made by the OEM for maximum engine performance and to protect your warranty. If you are unsure of which engine oil is right for your truck, consult the owner’s manual or a certified mechanic.

The movement of machinery components often results in resistance due to friction. Lubricants reduce this friction and make it easier for surfaces to move. Solid lubricants, made up of particles like graphite, MoS2, silicon or polytetrafluoroethylene (PTFE) do this by creating a film between moving components or coating them.

These particle-based lubricants, sometimes called dry lubricants or solid film lubricants, can be used alone, as extreme pressure (EP) additives in grease formulations or in combination with liquid lubricants in sprays or dispersions. They are designed to be non-toxic and environmentally safe, as well as less abrasive than traditional oil and grease.

Getting the right material for a lubricant application depends on a variety of factors. For example, the lubricant must withstand temperature and load variations while promoting smooth operation and minimizing contamination. It must also be resistant to moisture and corrosion and be compatible with the material being lubricated.

For instance, the lubricants used in ITER, an international project aimed at producing fusion energy for power, operate under cryogenic temperatures, high radiation levels and in a vacuum. For these types of applications, solid lubricants are crucial, says STLE member Brandon Krick, associate professor of mechanical engineering at Florida State University in Tallahassee. He notes that many medical instruments, metalworking tools and seals also require solid lubricants for the same reasons. The lubricants must also be chemically stable and work under cold, a corrosive atmosphere and in space. To achieve these goals, materials must have good lubrication, but they must also be electrically conductive and promote easy cleaning.

where to buy molybdenum disulfide grease

A high-performance lubricant that’s designed to meet severe lubrication requirements found in heavy equipment like haul trucks, cranes, scrapers, and shovels. It helps reduce friction in extreme-pressure environments, resulting in less heat and lower power consumption while also helping to reduce build-up and oxidation.

It’s used for its superior durability and can withstand massive loads, intense pressures, and even harsh chemicals that can cause corrosion. This makes it ideal for a wide range of industrial applications and is commonly used in off-road and mining equipment manufactured by Caterpillar, Terex, Komatsu Dresser, and others.

Molybdenum disulfide, or moly, is a bluish-gray solid with a layered crystal structure similar to that of graphite and other materials such as tungsten disulfide and boron nitride. It’s also inert to moisture, making it an effective lubricant in dry conditions. When used in conjunction with a binder and carrier, it can be applied in powder or plated layer form to surfaces as an anti-galling lubricant.

When used in greases and other lubricants, molybdenum disulfide acts as a solid lubricant that forms a barrier between metal-to-metal contacts under stress. These lubricants are often fortified with MoS2 as an additive and can provide exceptional lubrication under severe pressure and wear conditions. It’s also resistant to thermal degradation and can remain bonded to surfaces for long periods of time under harsh conditions. Moly Greases are available in a variety of formulations including thickened base oils, lithium complexes, and polymers.

Cubic boron nitride (c-BN) is a superhard mineral that is second only to diamond in hardness. It's also four times as strong as traditional abrasive and is used in high-tech cutting tools, aerospace applications and thermal spraying to hardened steel. Until recently, though, the only c-BN available was man-made in labs and was much softer than diamond. Scientists now have made the first c-BN that is actually harder than diamond. How they did it is a fascinating story.

The scientists started with "onion-like boron nitride particles shaped a bit like a flaky rose," and compressed them to 15 gigapascals. This caused the crystals to reorganize into a new, nanotwinned structure. The term comes from the way adjoining atoms in this new structure mirror each other, rather like apartments in an apartment building. This is a very powerful form of deformation called nanotwinning, which the scientists believe is responsible for boosting the new c-BN's strength.

After the samples were compressed, the team analyzed them with a scanning electron microscope and a focused ion beam. They found that the c-BN exhibited nanotwinning and had very strong, uniform sutures between diamond and c-BN domains, as shown in a series of electron micrographs, or TEMs, taken on a FEI Nova NanoSEM 430.

The atomic structure of the new material is very stable, even at high temperatures and under very high pressures. That means it should last a long time, and the sp3-hybridized c-BN bonds make the new c-BN remarkably tough. This finding puts the new c-BN in a class of materials that could be used in everything from cutting tools to drilling for resources.

Polytetraflouroethylene, PTFE is one of the most popular sealing materials for applications in which high pressure and dynamic loads are involved. It is also non-stick and chemically inert which makes it an ideal choice for a wide variety of applications.

The material’s excellent elasticity and low frictional properties make it ideal for dynamic components, particularly in the air compressor industry. However, the material can be susceptible to wear if it is subjected to very heavy loads.

To counteract this, PTFE is often filled with fillers that improve its performance. These can include carbon, glass, and bronze.

Carbon-filled PTFE has several benefits including reduced deformation under heavy load, better compressive strength, lower permeability and improved wear resistance. It is conductive, making it suitable for appliances that require higher thermal conductivity than PTFE alone.

Graphite-filled PTFE is an alternative that offers similar benefits to a carbon-filled material but without the greatly improved wear resistance. It lowers the coefficient of friction, self-lubricates and has some electrical conductivity.

Bronze-filled PTFE has excellent wear resistance but cannot compare to the wear resistance of carbon-graphite-filled PTFE and is more suited for applications where the gas compressor has piston temperatures. It can be used in bearing and piston ring applications.

PTFE is an excellent material for sealing, but it can suffer from wear if it is subjected to heavy loads. Adding fillers to PTFE can counteract this issue and provide a much stronger and durable seal.