2024 Author: Howard Calhoun | [email protected]. Last modified: 2023-12-17 10:16
Greases are one of the essential elements in today's industry. They are used for machining chassis, chains, rotary axles in machinery, for valves and many other applications.
Their use is especially effective in conditions characterized by sudden temperature changes and high humidity.
Features and properties of greases
These funds have plasticity. This is the main difference between them and liquid lubricants. They are produced on the basis of oils with the addition of thickeners, which can be used as polymers, clay, carboxylic s alts.
- Greases have different colors. They are transparent, black, light brown.
- Many of these products provide corrosion protection for machined parts.
- Distinguished by the lack of smell.
- Do not change their density with temperature changes.
- These lubricants do not run, which makes them convenient to use.
- Minimum turnaround time varies from 2 to 4 weeks. Then the agent must be replaced.
Greases:species
Today, there are a huge variety of greases. Let's talk about the main ones.
- Sodium. They are often supplemented with calcium. Another name is constants. It is advisable to use them in conditions with temperatures from 70 to 110 degrees. The downside is the fact that they are afraid of water and can dissolve in it.
- Lithium. Made with lithium. They are especially effective in conditions where there is strong vibration, under heavy loads. Great for long term use.
- Aluminum. Made from aluminium. Resistant to moisture, prevent oxidation of metals, thereby increasing conductivity. Often used in conditions characterized by elevated temperatures.
- Polyurethane. Produced on the basis of powder. They are prone to biodegradation. Do not have any harmful effects on the environment and the human body.
- Teflon. They are distinguished by good heat resistance, they can withstand temperatures up to 250 degrees. A kind of film is left on the processed parts, which has electrical insulating and water-repellent properties.
- Polyglycol. Their use allows you to extend the life of the mechanisms. Especially used in high temperature environments.
- Silicone. Protect against corrosion. Forms a film with water-repellent properties. Improve sliding, thereby preventing friction of parts. Will not wash off with water.
In addition to these main types, there are many others: pastes, greases based on thickeners (both organic and inorganic), etc..
Product Applications
Greases have a fairly wide range of uses. So, for example, silicone is used for refrigerators. They are food approved. Such lubricants are common in everyday life. They process the paintwork of the car body, lubricate the locks and door hinges.
Konstalins are used for all types of transmission mechanisms - shafts and rollers. In addition, they are a good solvent for varnishes.
Lithium grease is often used for exposed parts of equipment. It is excellent for plain bearings and roller bearings.
As you can see, greases have a range of useful properties that protect mechanical parts during production.
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