Main Differences Between Calcium based and Lithium based Lipids

1. The role is different.

Lithium-based grease is made from natural fatty acids (stearic acid.

or 12-hydroxystearic acid) lithium soap, made by thickening medium-viscosity mineral lubricants or synthetic lubricants, while synthetic lithium-based greases are made from synthetic fatty acid lithium soaps, thickening medium-viscosity mineral lubricants.

Calcium-based grease is made of medium-viscosity mineral lubricant thickened by calcium soap made of animal and vegetable oil (synthetic fatty acids for synthetic calcium-based grease) and lime, and water is used as a gelatinous solvent.

2. The application is different.

Calcium-based grease is mainly used in rolling bearings of various industrial and agricultural machinery such as automobiles, tractors, water pumps, and small and medium-sized motors.

and lubrication of areas that come into contact with water or moisture. Because calcium-based lipids are mainly used in compression cups, they are also called "cup fats.""。

Lithium-based grease is suitable for lubricating friction parts such as bearings, conveyor roller bearings, gears and other friction parts of continuous rolling mills and forging machines in the metallurgical industry. Machinery and equipment under high load and relatively high temperature conditions, lubrication of bearings and gears of high-load mechanical equipment in industrial and mining enterprises, and friction parts of heavy vehicles.

3. The characteristics are different.

Calcium-based lipids have good water resistance, are not easy to emulsify and deteriorate when exposed to water, and can be used in humid environments or in contact with water.

Lithium-based greases, especially greases thickened with lithium 12-hydroxystearate, have only two intersection temperatures, the first intersection temperature (i.e., from pseudo-gel state to gel state) is generally above 170, and the second phase transition temperature (i.e., from gel state to sol state) is generally above 200, therefore, when a suitable mineral oil is selected, it can be used for a long time at 120 or short-term use to 150.

1. Anhydrous calcium is an emerging calcium lipid in recent years, made by dehydration treatment and calcium saponification, the appearance is roughly the same as lithium grease, individual small factories use lithium grease barrels to canned anhydrous calcium, please be cautious to distinguish the firm method can be thumb ten fingers up and down kneading anhydrous calcium quickly disappears, lithium grease viscosity does not decrease or pour some water, a few days lithium meets water chemical reaction into a white shape, and anhydrous calcium almost unchanged, conditional available microscope, anhydrous calcium is a single fiber under the microscope, and lithium grease is a double fiber, Therefore, whether it is high temperature, high speed, and anti-wear extreme pressure, it is better than anhydrous calcium, and it is also one level higher.

2. Anhydrous calcium is between calcium and lithium, and some anhydrous calcium will be worse than calcium, "use temperature calcium 60, dropping point 70; The anhydrous calcium temperature is 90, and the dropping point is about 110. Some anhydrous calcium temperatures and dropping points are even lower. The lithium-based grease use temperature -20-120 dropping point 180 》anhydrous calcium ordinary chassis, northern or winter can be used.

Improper use of construction machinery in southern weather is fragile and consumable, melting, not resistant to wear, not resistant to extreme pressure, and not resistant to high temperature.

3. Lithium-based grease is made of natural fatty acids (stearic acid or 12-hydroxystearic acid), lithium soap (lithium hydroxide), thickened medium-viscosity mineral lubricating oil or synthetic lubricating oil, while synthetic lithium-based grease is made of synthetic fatty acid lithium soap, thickened medium-viscosity mineral lubricating oil. Lithium-based grease, especially the lubricating grease thickened with 12-suspicious lithium stearate soap, after adding antioxidants, rust inhibitors and extreme pressure agents, becomes a multi-effect and long-life general grease, which can replace calcium-based anti-lubrication grease and sodium-based grease for bearing lubrication of aircraft, automobiles, tanks, machine tools and various mechanical equipment.

4. Shandong Wanyou Industrial Oil was established in April 2008 with a registered capital of 40 million yuan, with 4 invention patents, 12 utility model patents, 6 appearance patents and independent intellectual property rights. The products involve molybdenum disulfide grease, semi-fluid grease, general lithium grease, automotive grease, construction machinery grease, industrial general grease, metallurgical grease, special grease, automotive lubricating oil, industrial lubricating oil, special lubricating oil, automotive protective equipment, etc. It has passed ISO-9001 international quality system certification; Product series development, complete categories, stable performance, excellent quality, set scientific research, production, sales in one of the professional industrial oil manufacturers, annual production of 100,000 tons, products since the market feedback is good, much favored.

6. Shandong Wanyou Industrial Grease supports the export of grease and lubricating oil series products, which is a way to be in line with international standards. Relying on China, Shandong Wanyou Industrial Oil focuses on exploration and innovation in the field of lubricating grease, providing users with the most valuable lubrication solutions and reliable, durable, high-efficiency and energy-saving products. Wanyou Oil only makes good products, not only has a good brand reputation in the industry, but also exports to Germany, Russia, Pakistan, Myanmar, Vietnam, Bangladesh, Indonesia, Cameroon and other 20 countries and regions.

The raw materials are different: calcium grease is made of mineral lubricating oil; Lithium grease is made from mineral lubricants or synthetic lubricants. The role is different:

Calcium-based grease can be used to lubricate small and medium-sized motors, water pumps, positive pulse tractors, etc.; Lithium grease is used for bearing lubrication in aircraft, automobiles, tanks, machine tools and various mechanical equipment. The characteristics are different: calcium-based lipids have good water resistance, shear stability and thixotropic stability; Lithium lipid has good mechanical stability, colloidal stability, and water resistance.

1. The raw materials are different.

Calcium-based grease: Made by thickening a medium-viscosity mineral lubricant with natural fatty acid calcium soap.

Lithium-based grease: Made from natural fatty acid lithium soap, thickened medium-viscosity mineral lubricants or synthetic lubricants.

2. The role is different.

Calcium-based grease: It can be used to lubricate rolling and sliding bearings with medium speed and medium load for small and medium-sized motors, water pumps, tractors, automobiles, metallurgy, textile machinery, etc.

Lithium-based grease: in addition to antioxidants.

After the rust inhibitor and extreme pressure agent, it becomes a multi-effect long-life general grease, which can replace calcium-based grease and sodium-based grease for bearing lubrication of aircraft, automobiles, tanks, machine tools and various mechanical equipment.

3. The characteristics are different.

Calcium-based grease: It has good water resistance and can be applied to the lubrication of various mechanical parts in humid environments or in contact with water; It has good shear stability and thixotropic stability; Calcium-based greases have better pumpability, while calcium-based greases have shorter fibers and lower strength limits.

Lithium-based grease: when the appropriate mineral oil is selected, it can be used for a long time at 120 or short-term use to 150; It has good mechanical stability; It has good colloidal safety prudence; It has good water resistance and can be used in wet and water-contact mechanical parts.

Calcium-based grease is commonly known as "butter" with low dropping point, short bearing operating life, and easy hardening in steam. Poor shear resistance and cannot be used at high speeds.

Lithium grease has greater solubility in water, and will emulsify and discrete when exposed to water.

In general, the main differences are:

1. Different structural components;

2. The way of use is different;

3. The structure determines the nature, and one collapses and dilutes the other in water.

Calcium-based grease: Calcium-based grease is made of vegetable and vegetable oil (synthetic fatty acids used to synthesize calcium-based grease) and calcium soap made of several lime to thicken medium-viscosity mineral lubricating oil, and water is used as a gelatin solvent. Main Applications:

It is used for the lubrication of rolling bearings and parts that are easy to come into contact with water or moisture in various industrial and agricultural machinery such as automobiles, tractors, and small and medium-sized electric motors. Because the calcium-based grease is mainly used in the pressed potato rock shrinkage cup, it is also called "cup fat"."。

Lithium grease: Lithium grease is made from lithium soap, a natural fatty acid (stearic acid or 12-hydroxystearic acid), which thickens a medium-viscosity mineral lubricant or a synthetic lubricant, while a synthetic lithium-based grease is made from a synthetic fatty acid lithium soap, which thickens a medium-viscosity mineral lubricant. Main Applications:

Extreme pressure composite lithium grease is suitable for the lubrication of continuous casting machines, continuous rolling mills, sintering machines, roller bearings in front of furnaces, mechanical equipment under high loads and relatively high temperature conditions, printing and dyeing, lubrication of empty friction parts of large motors, and friction parts of large trucks.

First, the taper penetration is different:

No. 2 is at 265-295 and is most commonly used.

No. 3 is 220-250 in Zhaoze, which is harder and is generally used in applications that require resistance to water or solid impurities, reducing equipment wear.

2. The dropping point temperature is different

The higher the number of lithium lipids, the higher his dropping point, so the temperature of No. 3 is higher than that of No. 2.

Third, the application is different;

No. 2 is suitable for machinery and equipment with medium speed and medium load. Such as automobiles, tractor hub bearings, small and medium-sized motors, water pumps and blowers, etc.

No. 3 is suitable for mining machinery, automobiles, tractor wheel bearings, large and medium-sized motors and other equipment.

Lithium grease is a long-life, multi-purpose grease that can replace calcium-based, sodium-based and calcium-sodium greases, and is the replacement product of these greases. It has good water resistance, mechanical stability, rust resistance and oxidation stability, and is widely used for the lubrication of rolling bearings, sliding bearings and other friction parts of various mechanical equipment in the temperature range of -20 120.

Lithium grease and calcium grease are two different types of grease. First of all, the difference between lithium and calcium is the type of base oil. Lithium base oils are usually mineral or synthetic, while calcium-based oils are usually ester base oils.

Secondly, the secondary processing methods of lithium and calcium greases are also different. Lithium grease is made by applying a lithium 12 hydroxyl group to a base oil at a certain temperature, while calcium grease is made by reacting calcium carbonate with organic acids.

At the same time, lithium and calcium greases are used in different ways. Due to its high resistance to high temperatures, lithium grease is often used for the lubrication of machinery and equipment under high temperature conditions, such as bearings and drive chains. The calcium-based grease has good quick effect and is suitable for the lubrication of mechanical equipment under the condition of fast leakage start and cold start.

Calcium-based greases also have excellent water resistance, which is why they are often used in the lubrication of wet and diving equipment, such as marine and submersible pumps.

In general, lithium and calcium greases have their own characteristics and applications. The choice of grease depends on the specific situation. In terms of lubrication performance, it is found that lithium-based grease is more suitable for lubrication of machinery and equipment under high temperature and heavy load conditions, while calcium-based grease is suitable for equipment with high requirements for fast-acting lubrication, low temperature start-up and water resistance.

From the perspective of energy and environmental protection, advanced lubrication technologies such as synthetic base oils and compound greases will become the development trend of lubrication technology in the future. <>

Calcium-based lipids. is made of nature.

Fatty acid. Or.

Synthetic reeds fatty acids.

Use. Calcium hydroxide.

The reaction produces calcium soap.

Thickening. Medium.

Viscosity. Petroleum.

Lube. It is made, the dropping point is between 75 and 100, and the temperature of use cannot exceed 60, which is good.

Water resistance. Shear stability.

Thixotropy. Stability.

Lubricity. and protective.

Lithium grease is made from natural fatty acids or lithium soap thickened by petroleum lubricants.

Synthetic lubricants.

Made. The dropping point is higher than 180, and it can be used in the environment of about 120 for a long time, with good water resistance and mechanical stability.

The old uproar. Chemistry.

stability, lithium soap has a strong thickening ability, in.

Grease. .

Extreme pressure agents. anti-rust, etc.

Additive. After that, it is made into a multi-effect long-life grease.