The grease used by agricultural machinery farmers friends called it "butter." Its main role is to protect, lubricate and seal agricultural machinery bearings. The greases commonly used in agricultural machinery are divided into the following three categories according to different properties: calcium-based greases, sodium-based greases, and calcium-sodium-based greases. 1. Calcium-based grease, calcium-based grease A dense ointment made of engine oil, animal and vegetable oils and lime, generally yellow or dark brown, uniform in structure, soft and smooth, easy to bring air bubbles, it has good water resistance, water No emulsification, suitable for lubrication of parts that come in contact with moisture or moisture. Because it uses water as a stabilizer and has poor heat resistance, when the use temperature exceeds a predetermined value, it will lose water, so that the structure of the grease is destroyed, so it is not resistant to high temperatures and usually does not exceed 70°C. Calcium-based grease is divided into five grades according to the degree of penetration, and its codenames are respectively ZG-1, ZG-2, ZG-3, ZG-4 and ZG-5. The bigger the number, the smaller the penetration and the harder the fat. No. 1 is suitable for low temperature working conditions; No. 2 is suitable for ball bearings with light load and no more than 55°C; No. 3 is suitable for medium-load, medium-speed and mechanical friction parts with temperature below 60°C; No. 4 and No. 5 No. is suitable for lubrication of heavy-duty, low-speed machines with temperatures below 70°C. For example, the lubrication of cooling water pump bearings for medium and small-power diesel engines, and the use of calcium carbonate grease No. 4 for agricultural water pump bearings are most suitable. When filling this type of grease, be careful not to heat the melt and inject it, or to reduce the consistency by adding other oils to the grease. The correct method of injection is to use a grease gun, spatula or finger to wipe the bearing. Inside the cavity. 2. Sodium-based grease The sodium-based grease is a mixture of engine oil and soap. Its main features are: yellow to dark brown, even black, loose structure, and fibrous ointment. Long drawing, large granularity , Heat resistance is good, can maintain lubricity after melting. However, it is highly hydrophilic, and it dissolves when it is dissolved, which means that it cannot be used in mechanical bearings that are in contact with water and installed in a humid environment. Sodium-based grease is divided into ZN-2, ZN-3, and ZN-4 grades by penetration. No. 2 and No. 3 are suitable for friction parts with a temperature not higher than 115°C, but not for contact with water; No. 4 is suitable for friction parts with a temperature no higher than 135°C, and cannot be used for water or dampness. Parts. Sodium-based greases are generally used in medium-sized motors and generators that rotate faster, have higher temperatures, and generators of automobiles, tractors, and magneto-electric motors. 3, calcium sodium grease calcium sodium grease is mixed soap grease, the performance of this grease between the calcium and sodium grease between the two. Yellow-white, slightly granular, soft, non-smooth, non-sticky ointment. Divided into two grades ZGN-1 and ZGN-2. Its water resistance is stronger than that of sodium base grease, and its high temperature resistance is stronger than that of calcium base grease. Suitable for the lubrication of bearings working under high temperature, the upper working temperature is 100 °C. It is generally used on mechanical lubrication areas where the operating temperature does not exceed 100°C. It cannot be used on low temperature and lubricated parts that are in contact with water. The bearings are filled with grease, and they can only fill the bearing cavity with 1/2 or 1/3 of the capacity. Otherwise it will cause the bearing to heat and start difficult.
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(1)Calcium Gluconate injection should be colorless transparent liquid, if precipitation, it can be used for injection when precipitation can dissolve after lukewarm, shall not apply if insoluble.
(2)Slow intravenous injection, also should pay attention to the influence of the heart, avoid to use with cardiac glycoside.