Multi-grade lubricants I. Overview 1. Introduction Whether hot or cold, can maintain its lubricating properties are called multi-grade lubricants. They are usually defined by two numbers. Whether high or low temperatures, performance are guaranteed. Only marked with a number or viscosity grade, although marked with number two viscosity grades, but the difference is less than 15 oil, known as single-grade oil. For example; the 30th oil and 40 oil; and if 20 / 20w oil, which also comply with the requirements of 20 and 20w oil viscosity grade number, but the difference between the two viscosity grade number is 0, so it is not a multi-grade oil as a single-grade oil. 2. Product Advantages automotive engine oil temperature range is very wide, the lowest oil temperature when starting the engine in winter, a difference of several tens of degrees in summer, the highest oil start oil and heavy load operation is greater difference if the lubricant viscosity is too Great, liquidity and poor pumping will cause difficulty starting the engine or lubricating oil to the lubricating parts after the start time is too long, prone to dry friction, accelerated mechanical wear and tear. Test showed that: Jiangmen City car running stamping oil use, wear and tear of the engine start-up account for about two-thirds. On the other hand, when the temperature is high, the oil viscosity is too small, is not conducive to fluid lubricant film formation and increase the friction and wear, and even cause mechanical abrasion, pull tanks and other adverse effects. Multi-grade lubricants are added viscosity index agent (or thickener) and other low-viscosity base oil dubbed, its cold start problem solving, improve the lubrication performance is a major technological breakthrough. Because the viscosity index agents by some linear polymer organic compound with anti-shear properties of the composition, which is dissolved in the oil expansion elongation at high temperatures, increased resistance between the lubricant molecules, the lubricating oil Jiangmen viscosity of not to drop too much oil use stamping to maintain a certain viscosity, a certain thickness of the oil film, to play its due role in lubrication. When these organic compounds curl cold shrink, suspended in the oil, lubricant resistance between molecules and thus decrease the viscosity of the lubricant oil will not increase too much, so as not to cause difficulty starting the engine, increasing wear. Aluminum cutting oil I. Overview 1. Introduction Aluminum cutting oil use low-sulfur high heat transfer performance of the base oil, adding mild non-active extreme pressure additives and other refined, not chemically react with any metal. Suitable for processing copper, aluminum and other nonferrous metals and low carbon steel and other materials. For turning automatic precision machine tools, screw machine, CNC machine tools, and milling, thread rolling to achieve excellent standards. 2. Features (1) Cutting oils have excellent low-viscosity oil Jiangmen stamping purposes, the use of loop resistance and excellent cleaning. The lower the viscosity, the stronger the cleaning ability, permeability and better cleaning performance. Better cleaning effect, because it adsorbed film formed on the surface, to prevent sludge and other particles and adhere to the workpiece, the tool, while it can penetrate to the particles and sludge adhesion interface, it is separated from the interface, with the cutting Jiangmen away oil stamping oil use, keep the cutting oil clean. (2) cutting oil has a high thermal conductivity, in the machining of metal products, high-speed cutting and heavy duty machining play an effective cooling effect. (3) having a non-active cutting oil extreme pressure agents, making the product has a very wide range of applications, effectively increase the surface finish. (4) cutting oil containing fat oil to enhance lubricity, thereby protecting the tool. (5) cutting oil mist during the cutting operation, low odor, making the work environment more comfortable. (6) cutting oil transparency, facilitates the operator to observe. Computerized flat knitting machine lubricants special lubricants _ _ Guangdong Jiangmen wholesale lubricants supplied by Rand lubricants Technology Co., Ltd. of Shenzhen City. Shenzhen City Rand lubricants Technology Co., Ltd. (www.landerlube.com) strong, credible, in Shenzhen, Guangdong lubricant (grease) industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Rand lubricants into the brilliant and you work for a better future!