What is the difference between grease and oil?

Grease thick, grease-like semi-solids. It is used for the friction part of the machine, which plays the role of lubrication and sealing. It is also used on metal surfaces to fill voids and prevent rust.

It is mainly formulated from mineral oil (or synthetic lubricants) and thickeners. According to the thickener, it can be divided into two categories: soap grease and non-soap grease. Metal soaps such as lithium, sodium, calcium, aluminum, zinc and other metal soaps are commonly used as thickeners for soap-based grease, as well as metal soaps such as potassium, barium, lead, and manganese.

Graphite, carbon black, asbestos and synthetic (such as polyurea, bentonite) as thickeners of non-soap grease can be divided into general grease and special grease according to the use, the former is used for general mechanical parts, and the latter is used for tractors, railway locomotives, ship machinery, oil drilling machinery, valves, etc. The main quality indicators are dropping point, penetration, ash and moisture, etc. The indicators used to evaluate the stability of grease colloids are oil separation test, rolling bearing performance test, etc.

The drum test is a test method to test the change of consistency under the action of rolling. The fluidity test is a test method to evaluate the pumpability of a grease at low temperatures. The water spray resistance test is a test method to evaluate the resistance of a grease to water elution.

Colloidal stability is the ability of grease to keep colloidal stability during storage and use, and liquid mineral oil does not precipitate from grease. Mechanical stability is the ability of a grease to resist changes in consistency under mechanical operating conditions. The ball bearing torque test is a test method to evaluate the low-temperature performance of lubricating greases.

Grease is a stable solid or semi-solid product composed of a thickener dispersed in a liquid lubricant, in which additives and fillers designed to improve certain characteristics of the grease can be added. The grease can adhere to the vertical surface at room temperature without loss, and can work in open or poorly sealed friction parts, with irreplaceable holding points of other lubricants. In general, greases with the same soap base are more compatible.

Organoclay bases are incompatible with other bases. Therefore, grease is used as a lubricating material in many parts of automobiles and construction machinery, which is often referred to as butter.

Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts, mainly playing the role of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering (ROAB). As long as it is applied between two objects in relative motion, and can reduce the friction and wear caused by the contact between two objects, it is lubricating oil. Lubricants are technology-intensive products, complex mixtures of hydrocarbons, and their true performance is the combined effect of complex physical or chemical processes.

The basic properties of lubricating oil include general physical and chemical properties, special physical and chemical properties and simulated bench tests.

The grease is made of deeply refined No. 220 naphthenic base oil, thickened with hydroxyl fatty acids and lithium soap, and added anti-oxidation, anti-rust, tackifier and extreme pressure anti-wear additives, and the world's most advanced contactor grease refining technology, with smooth weave structure, delicate fiber, and superior quality than lithium grease. It has excellent water erosion resistance and rust resistance, and resists hardening and prevents loss from bearings in harsh working environments. Applicable temperature range in continuous operation:

30 160, short-term maximum temperature: 180. The grease retains its original shape and is not automatically lost by gravity, nor does it slip off vertical surfaces and drip out of crevices.

This feature is very suitable for friction parts that stop and stop or do not run frequently, for parts where it is very difficult to replenish grease materials (such as lubrication parts for aerial work of overhead cranes), and for open or poorly sealed parts. When the friction part is in motion, the grease will not be thrown off by centrifugal force like the lubricating oil, and it will not splash out of the poorly sealed part. Some dripping or splashing can be almost completely avoided, which ensures that the environment is not or less polluted, and also prevents contamination of the product.

This is especially important for industries such as paper, weaving, and food.

Lubricating oil research experts said: in fact, there is a difference between the two, in layman's terms, grease is a (or several) thickener and a (or several) lubricating liquid composed of a plasticity lubricant, in order to improve performance, add a performance improver, that is to say, grease than lubricating oil components in the thickener, the advantage of grease is that it can stay on the lubricating surface. For lubricating oil, lubricating oil, known as the "blood" of the car, its main role is to lubricate, clean, cool, seal, reduce wear, rust and prevent corrosion on the engine.

We all know that the engine is the heart of the car, and there are many metal surfaces in the engine that rub against each other, and these parts move fast, the environment is poor, and the operating temperature can reach 400°C to 600°C. Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong the service life. Lubricant research experts point out:

Grease is composed of different soap bases mixed with an appropriate amount of lubricating oil according to its use, which can be vividly understood like a sponge full of lubricating oil. The main purpose of lubricating oil and grease is lubrication, but grease is more suitable for lubrication under conditions such as low speed, wide temperature range, harsh environment, and long oil change intervals.

Different classifications: lubricants are divided into paraffin-based, intermediate-based, and naphthenic base oils.

Lubricants are divided into oily liquid lubricants, greasy semi-solid greases, and solid lubricants. Different functions: lubricating oil mainly plays the role of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering, etc., and lubricant is a lubricating medium used to reduce the frictional resistance of the friction pair and slow down its wear.

Different characteristics: Lubricant is a lubricating product based on grease, while lubricant is water-soluble. <

1. Different classifications: lubricating oil is divided into paraffin-based, intermediate-based, and naphthenic base oils, and lubricants are divided into oily liquid lubricating oils, grease-like semi-solid greases and solid lubricants.

2. Different functions: lubricating oil mainly plays the role of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering, etc., and lubricant is a lubricating medium used to reduce the friction resistance of the friction pair and slow down its wear.

3. Different characteristics: lubricating oil is a kind of grease lubrication product, while lubricant is water-soluble.

The main difference between grease and oil is that grease is in paste form, and grease is based on industrial lubricant with thickener. The lubricating oil is oily, and the lubricating oil has strong fluidity and slightly higher volatility.

Grease is generally used on metal surfaces to fill voids and prevent rust. Lubricating oil can be used in various types of machinery, mainly for lubrication, cooling, rust prevention, cleaning, sealing and buffering. The difference between grease and oil is detailed:

1. Lubricating oil is used in various types of machinery, the role is to reduce friction, so as to protect the liquid lubricant of machinery and processed parts, mainly playing the role of lubrication, cooling, rust prevention, cleaning, sealing and buffering. 2. Grease is a relatively viscous grease-like semi-solid. It is used in the friction part of the machine, with lubrication and sealing for opening the game.

It is also used on metal surfaces to fill voids and prevent rust. 3. Lubricating dry grease is divided into fully synthetic grease and mineral oil grease according to the base oil, and the grease produced by synthetic base oil is more effective than the grease produced by mineral oil in terms of high temperature resistance, low temperature resistance and durability, and the process is very complex. 4. Lubricating oil and grease are all commonly used lubricants in lubrication systems, and lubricating oil often refers to grease with small viscosity coefficient, which is liquid at room temperature; Grease often refers to grease with a slightly larger viscosity coefficient, and is often paste-like at room temperature.

Grease and oil are the two main ways of daily lubrication of mechanical transmission components.

They have different properties and functions, grease is based on grease or wax as the base material, adding polarizing agents, antioxidants, anti-wear agents, anti-rust agents, thickeners and other additives, after processing to make a melt, with good lubrication, anti-corrosion and anti-wear properties.

Lubricating oil is mixed with active groups and base oil, the base oil is mostly petroleum refined oil, with silver deficiency refers to the flow state within a certain temperature range, which can dissolve some special chemicals, so that they can be released in the lubrication system, and play a lubricating role with the operation of the machine.

In general, greases are suitable for lubricating surfaces in rolling or frictional contact, while oils are suitable for sliding contact surfaces, and the oil also removes dirt and residue from the lubricated areas.

In addition, the dispersion of the grease allows for a good lubrication coverage, while the dispersion of the oil is not high.

There are many kinds of greases, such as calcium-based grease, sodium-based lubricating grease, and lithium-based grease.

Since they have different temperature and corrosion resistance, it is important to choose the right grease according to the lubrication conditions in use to achieve the best results.

Grease and oil are two different lubricating materials. Lubricating oil is a liquid lubricating material that is commonly used to lubricate high-speed and high-precision machinery. Lubricants typically have lower viscosity and fluidity and can form thin films in different parts of the machine to reduce friction and wear, thereby extending the life of the machine.

Grease, on the other hand, is a semi-solid lubricating material that is typically used to lubricate heavy-duty and low-speed machinery. Runnian Grease usually has a higher viscosity and viscosity and can form a thicker film in different parts of the machine to provide lubrication for a longer period of time. The grease also has sealing and anti-corrosion functions, which can prevent moisture and impurities from entering the inside of the machine.

While both oil and grease can be used to lubricate a machine, the choice of its segment depends on the operating conditions and lubrication requirements of the machine. Lubricants are typically used in high-speed and high-temperature machines, while greases are used in heavy-duty and low-speed machines. In some cases, grease and oil can also be combined to provide more comprehensive lubrication protection.

There are other factors to consider when choosing a Hail Slip material, such as cost, ease of use and environmental impact. Lubricants are generally easier to use and more environmentally friendly than grease, but they are also more expensive. Grease is more practical, but can harden or soften in extreme temperatures, affecting lubrication.

In conclusion, both oils and greases are important lubricating materials that are used to extend the life and performance of machines. Choosing the right lubricant material depends on the machine's operating conditions and lubrication requirements, as well as factors such as cost and environmental impact.