What are the lubrication characteristics of the vibrating screen? What are the requirements for the lubricating oil?
(1) a sodium soap mineral oil system phase transition temperature is higher, the general temperature change from pseudo gel to gel is 140 DEG C, gel into colloidal solution temperature is 210 degrees Celsius, so sodium base grease is a high dropping point of lubricating grease, can work at 120 DEG C is longer room.(2) sodium based grease has longer fiber structure and good wire drawing property, and has stronger adhesion to metal. It can be used in rolling or sliding bearings with higher vibration and higher temperature. The fatty acid and different viscosity of different saturation oil and different cooling methods can be prepared sodium base grease with different fiber length. Because of the great friction between long fiber and sodium base grease and low adhesion to metal surface, it is not suitable for mechanical lubrication at high speed and low load. At low speed and high load bearing, long fiber sodium base grease has excellent shear stability, can be used for railway and automotive bearings, mechanical brake device, crank and large winch and universal joint lubrication part. Short fiber grease can be applied to the lubrication of various bearings at medium speed and moderate load.(3) fatty acid sodium soap is one of the most easy to dissolve in water to all metal soap, soap molecules hydrolysis carboxyl terminal make soap fiber loss thickening ability, therefore, key grease encounter water, viscosity decreases, it cannot be used for mechanical components or humid environment with water and water the steam on the contact.
Sodium based grease has excellent protection because it absorbs foreign water vapor, delaying the process of water vapor permeating into the metal surface.
Sodium base grease is made from natural fatty acid sodium soap, made of mineral oil or synthetic thickener of lubricating oil, and run along the synthesis of sodium base grease is made by the synthetic fatty acid soap, made of mineral oil thickener of.
