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2023 / 10 / 12
More than 430 billion "earthquake" acquisition! Basf, ExxonMobil, DuPont and others are doing this in response to the economic downturn... Exxonmobil, an American supergiant, the largest energy exploration and extraction company in the United States and formerly the largest company in the world by market capitalization, is closing in on a deal to buy shale giant Pioneer Natural Resources, It's a blockbuster acquisition worth about $60 billion (about 438.09 billion yuan) that will reshape the U.S. oil industry. A successful takeover of Pioneer, which has a market value of about $50bn, would be Exxon's biggest deal since it merged with Mobil in 1999. That would make Exxon the biggest producer in the oil-rich Permian basin of West Texas and New Mexico, pumping about 1.2 million barrels a day, more than many Opec countries. If the deal goes through, it would be the biggest acquisition this year. It would also extend Exxon's inventory at top drilling sites in the basin for decades, providing low-cost, low-risk crude beyond 2050 for its vast network of refineries along the Gulf Coast. The deal, which was revealed back in April, has been described as "seismic" and reports say the agreement could be completed in the coming days if complications do not arise. Exxon has been exploring options that would take it deeper into the West Texas shale fields after it posted record profits in 2022 and was flush with cash. Buying Pioneer, which has a
2023 / 10 / 11
Domestic oil prices may rise again on October 10, what is the future trend of oil prices? On October 5, 2023, the national comprehensive oil price continued to rise, and it is expected to be adjusted in the evening of October 10 after the National Day holiday, and the oil price increase is about 60 yuan/ton (0.05 yuan/liter -0.06 yuan/liter). This means that oil prices after the Mid-Autumn Festival National Day may be more expensive. In the second half of the year, oil prices continued to rise and have yet to fall. This makes the first 19 oil price adjustments this year a total of 10 rises, 6 falls and 3 stranded adjustments. Cumulatively, this year's oil price has risen by more than 1015 yuan/ton compared to the end of last year, which is equivalent to a rise of more than 0.83 yuan/liter. The 20th oil price adjustment or rise again, the oil price for three months "rose nearly 1 yuan", the current oil price hit a new high this year. No. 95 gasoline "has risen more than 9 yuan", and the oil price this year is "a new high." First, international oil prices rose again, the holiday international oil prices "three rises and one fall" Recently, international oil prices have risen again, and international oil prices have appeared in the "three rises and one fall" market during the holidays. Affected by a variety of factors such as global economic recovery and crude oil supply and demand, international oil prices have continued to rise since the second half of this year. Although there was a brief dip in international oil prices during the holiday season, the overall increase in oil prices still exceeded the increase standard.
What cutting oil should be chosen to solve the difficulty of chip removal in deep hole machining?
2023 / 09 / 29
Deep hole processing is divided into six types: deep hole drilling, deep hole gun drilling, deep hole boring, deep hole drilling, deep hole honing, scraping and rolling machine tool processing, and more! Of course, the cutting oil used is also different. Processing characteristics of deep hole drilling machine tools: 1. The tool holder is limited by the aperture, with small diameter and large length, resulting in poor rigidity and low strength. During cutting, it is prone to vibration, ripple, and taper, which affect the straightness and surface roughness of deep holes. 2. When drilling and expanding holes, it is difficult to input cooling lubricant into the cutting area without using special devices, which reduces tool durability and makes chip removal difficult. 3. During the processing of deep holes, it is not possible to directly observe the cutting condition of the tool. Instead, one can only rely on work experience to listen to the sound of cutting, observe chips, touch the vibration and workpiece temperature, and observe instruments (oil pressure and electricity meters) to determine whether the cutting process is normal. 4. It is difficult to remove chips, and reliable methods must be used to break and control the length and shape of chips, in
How to Choose Lubricant Enterprises under the New Energy Tide
2023 / 08 / 22
In the past five years in China, the sales of fuel vehicles have decreased by nearly 10 million units, while the sales of new energy vehicles have increased by nearly 6 million units. It has become a fact that new energy vehicles are constantly seizing market share of fuel vehicles. From both the market and policy perspectives, under the global goal of "dual carbon", the path of replacing traditional fuel vehicles with new energy vehicles has already been fully explored. The transformation of large factories is accelerating, and competition on the track is intensifying! Both international and state-owned brands are seeking new breakthroughs in lubricant related enterprises. In the past few days, Sinopec has invested another 500 million yuan to establish a new lubricant company, perhaps also laying out a layout for new energy vehicles. After everyone has experienced the ups and downs of the fuel vehicle market, a new battlefield has clearly opened up! Under this premise, the numerous downstream industries that are dependent on the fuel vehicle industry will naturally face more challenges. Among them, lubricant companies that not only target C-end consumers but also establish deep connections with B-end vehicle manufacturers and service providers are the first to be affected by electrification. But in electric vehicles, the integrated electric motor structure replaces the engine body, which also means that pure electric vehicles will not require engine lubricating oil at all. Instead, an integrated motor structure was adopted, and a battery, motor, and electronic control system were added. The oil r
Application of Triethanolamine in Cutting Fluid
2023 / 08 / 22
Triethanolamine is an important additive in water-based cutting fluids. Regardless of which cutting fluid is used, triethanolamine is used, indicating the importance of triethanolamine in cutting fluids. However, what role does triethanolamine play in cutting fluids? What are its functions in cutting fluids? Let's talk about the following functions of triethanolamine in cutting fluids. 1. Properties of triethanolamine Triethanolamine, also known as aminotriethanol, has a molecular formula of C6H15O3N. Triethanolamine has a wide range of industrial applications, such as in the oil and fat industry, petroleum processing industry, textile industry, rubber and environmental protection. Triethanolamine is generated by the reaction of ethylene oxide and ammonia water, and its refined product is a colorless viscous liquid. It has strong hygroscopicity and turns yellow brown in the air. Easily soluble in water and ethanol, slightly soluble in ethyl ether and benzene. PH=8-8.5, cannot evaporate with water vapor. 2. The role of triethanolamine in water-based cutting fluids 2.1 Synthesis of water-soluble oil based agents At present, most of the oil based agents with good lubrication performance are long carbon chain substances, which are mostly
Deep analysis of ferrous water-based rust inhibitor
2023 / 07 / 30
With the continuous development of industry, the use of steel is also increasing. However, during the production process or finished product storage process, steel sheets are prone to oxidation and rust when encountering humid air and rainy days, which affects the appearance quality of products. This has brought problems to the use of steel, and the annual loss of steel caused by corrosion is astonishing. According to statistics, the annual loss of steel due to corrosion worldwide is equivalent to 30% of annual production. Not only that, the equipment will also be damaged due to corrosion, causing shutdown and production, resulting in a decrease in product quality and causing huge losses to social wealth. Rust is a major enemy of steel, so how to protect steel, prevent its rusting and deterioration, and increase its service life has become a common topic of concern. Metals are divided into non-ferrous metals and Ferrous, and Ferrous include iron, manganese and chromium. Iron is hard and ductile, has strong ferromagnetism, good plasticity and thermal conductivity, and is widely distributed on Earth. Various alloys based on iron, including cast iron, carbon steel, stainless steel, etc., are widely used.
6 indicators! Teach you how to use vacuum pump oil correctly
2023 / 07 / 09
If you do not understand the principle of vacuum pump oil, you will misuse oil, reduce pump performance, and cause malfunctions. You will also understand the working principle of oil, use oil correctly, and know how to select oil correctly. We know that vacuum pump oil plays a lubricating and sealing role in vacuum pumps. If the vacuum pump oil is used incorrectly, it can cause smoke from the exhaust port. Oil plays a crucial role in pumps. Many applications use other brands of oil to mix or directly replace them with cheap oil in order to save costs. When different oils are mixed, conflicts may arise due to different indicators such as oil ignition point and vapor pressure, Using cheap oil instead, the performance parameters are not up to standard, reducing the effectiveness of the oil. Vacuum pump oil is also a factor that directly affects the lifespan of the pump. To choose vacuum pump lubricating oil, it is necessary to first clarify several performance indicators of the pump oil, which are the principle parameters of the pump oil. 1. The steam pressure of qualified pump oil should not be too high. Steam pressure is an important parameter for pump oil, as it is a factor that ensures the vacuum pump to continuously and quickly obtain vacuum and maintain the stability of the ultimate pressure. Pumps with different vacuum degrees have different requirements for the saturated vapor pressure of the pump oil. For ultra-high vacuum or high vacuum with high vacuum degrees, the saturated vapo
Standard for viscosity classification of internal combustion engine oils in China
2023 / 06 / 18
The viscosity of internal combustion engine oil is an important indicator that affects its lubrication performance, including low-temperature starting viscosity, low-temperature pumping viscosity, kinematic viscosity, and high-temperature high shear viscosity. This article introduces the viscosity indicators and test methods of internal combustion engine oils, as well as the situation of classification standards for internal combustion engine oils in China. It interprets the revised content of GB/T 14906-2018 "Viscosity Classification of Internal Combustion Engine Oils" implemented on July 1, 2019. 1. Development of SAE viscosity classification standards for internal combustion engine oils The engine oil viscosity classification system established by the Society of Automotive Engineers (SAE) in the United States began in 1911 and has undergone more than 20 revisions. It establishes the relationship between engine oil viscosity and service performance based on the engine's requirements for lubricating oil viscosity temperature performance. The latest version is SAEJ300-2015. The initial specifications specified the specific gravity, flash point, ignition point, residual carbon value, and viscosity (Saybolt viscosity), and the viscosity code was set based on the average of its low or high temperature viscosity requirements, taking the first two digits. In 1926, the first SAE viscosity classification based on Saybolt viscosity was introduced, which defined six viscosity levels of 130 ℉ (54.4 ℃) and 210 ℉ (98.9 ℃), represented by the numbers 10, 20, 30, 40, 50, and 60. Subsequently, in 1933, low temperature viscosity levels of 10W and 20W were introduced at 0 ℉ (-17.8 ℃), w
Automation Practice and Development Trend of Lubricant Blending and Filling Production Line
2023 / 06 / 18
The production process of lubricating oil mainly includes the following steps: firstly, the design of the lubricating oil mixing manifold; Secondly, the formulation design of lubricating oil; Thirdly, quality control; Fourthly, lubricating oil blending operation; Fifth, filling; Sixth, leaving the factory. By analyzing the production process of lubricating oil, it is clear that the second, third, fourth, and fifth ring segments are the key process links in lubricating oil production. This article only conducts research on the two process steps of lubricating oil blending and filling. During the blending process, it normally needs to blend different Lubricant Additive Component or Additive Package with different base oil, like Mineral Base Oil, Polyester Base Oil, etc. 1.1 Lubricating oil blending Lubricating oil blending mainly refers to using lubricating oil crude oil as the foundation and adding additives to the original through fine processing to improve the quality indicators of lubricating oil. The common lubricating oil crude oil is called base oil (hereinafter referred to as base oil), and the basic requirements for base oil are: refined processing technology; The ingredients do not contain asphalt or wax. The quality indicators of lubricating oil mainly refer to its viscosity, application effect, color, etc. [1]. The connotation of lubricating oil blending can clearly indicate that the purpose of blending base oil is to change the quality indicators of base oil and improve the comprehensive quality of lubricating oil products by adding additives.
Technology and Application of High Temperature Chain Oil
2023 / 06 / 18
Chain conveyor is a common type of transmission machinery in industrial production, such as newly coated (painted) household appliances that must go through a drying channel and be dried and shaped while moving. At this point, the chain machine is generally placed above the drying channel, and the electrical equipment being baked is suspended below the chain, moving at a constant speed with the chain, achieving the purpose of drying and shaping. In fact, chain drives are not only suitable for use in high torque and low rotational speeds, but also perform well even in corrosive and humid environments, and even in high-speed transmission. Therefore, the range of use of chain machines is very wide, covering various aspects such as transportation, agriculture, mining, food, mechanical component painting, textile shaping, stretching and stretching, building materials, and so on. The smooth operation of the chain machine and the flexibility of the chain links rely on good lubrication. It is an important Lubricant Additive Package in industrial application, like Air Compressor Oil Additive Package, Gear Oil Additive Package, etc. The lubrication system of the chain regularly and quantitatively fills the gap between the pin shaft and sleeve of the chain with chain oil, so as to produce lubrication effect and minimize the consump
The problems and countermeasures of cutting fluid during use
2023 / 06 / 04
Cutting fluids are widely used in cutting processes due to their functions such as cooling, lubrication, cleaning, and rust prevention. The cutting fluid is often deteriorated, smelly, corroded, produced foam, and the operator's skin is allergic in use. The following is a talk about the problems and countermeasures in the use of cutting fluid based on our practical experience. 1. The problem of cutting wave deterioration and odor The main reason for the deterioration and odor of cutting fluid is that it contains a large number of bacteria, mainly including aerobic and anaerobic bacteria. Oxygen consuming bacteria live in environments with minerals, such as water, concentrated cutting fluid, and oil leaked from machine tools. Under aerobic conditions, they split into two every 20-30 minutes. Anaerobic bacteria grow in an environment without oxygen, splitting into two per hour, metabolizing and releasing SO2, giving off a foul egg odor, and turning the cutting fluid black. When the bacteria in the cutting fluid exceed 106, the cutting fluid will become odorous. (1) Bacteria mainly enter the cutting fluid through the following channels: 1) During the preparation process, bacteria invaded, such as bacteria in the water used to prepare cutting fluid. 2) Bacteria in the air enter the cutting fluid. 3) The transportation between workpiece processes causes infection of cutting fluid. 4) Bad habits of operat
Will the current engine oil market continue to experience frequent price increases?
2023 / 05 / 15
With the continuous development of the automotive industry, the demand for oil in the market is also increasing. However, the price of oil in the market has always been a topic of great concern. So, what is the current trend of oil in the market? Will prices continue to rise frequently? Let's take a look together. Firstly, we need to understand how the market oil prices are formed. The price of market oil is influenced by various factors, including raw material prices, production costs, market demand, and supply. Under the influence of these factors, the price of oil in the market will fluctuate. In recent years, the price of oil in the market has been on an upward trend. This is mainly due to the increase in raw material prices and production costs. At the same time, the increase in market demand is also one of the reasons for the rise in market oil prices. However, with the continuous progress of technology and the continuous improvement of production processes, the production cost of market oil is gradually decreasing. This will help alleviate the pressure of rising oil prices in the market. Meanwhile, with the continuous improvement of environmental awareness, more and more consumers are choosing to use environmentally friendly oil, which will also have a certain impact on the market oil prices.
2023 / 04 / 26
Since middle March, international oil prices have continued to rebound. As of the close on April 13th, US WTI crude oil futures have risen to $83.09 per barrel, setting a record for the highest closing price this year. The fluctuation of crude oil prices directly affects the downstream industry chain, and the expectation of tight oil supply is bound to drive up the market of downstream petroleum products, including lubricants. In fact, lubricant companies have recently started a price adjustment model. Expert analysis suggests that due to multiple factors such as rising oil prices, rising costs, and continuous maintenance of refineries, there is still a demand for further increases in lubricant prices. Major lubricant companies are raising prices one after another From February to early April this year, major domestic and foreign lubricant companies have completed a wave of price increases. Starting from April 1st, Sinopec Lubricants Company will raise the price of Great Wall Lubricant, with a price increase of over 8% for main sales of passenger car oil and an increase of 400 yuan/ton for main sales of commercial vehicle oil. Castrol Lubricants also decided to adjust the prices of passenger car channel lubricant products and OEM lubricant products from April 1 by 5% - 10%. In addition to these two top lubricant companies, most brands in the lubricant market, such as Shell, Kunlun, SK, Shengpai, etc., have completed price adjustments, with the highest increase of 20% for SK lubricant.
Effect of Emulsion Index on Cold Rolled Sheet
2023 / 04 / 05
The emulsion mainly consists of base oil, emulsifiers, additives, and water. In addition to emulsifiers, the performance and content of other components also have a significant impact on the lubrication performance, usage effect, and service life of the emulsion. The main functions of emulsions include cooling, lubrication, rust prevention, etc., and their chemical properties have a certain impact on their functions. Its cooling function is mainly used to cool the rolled piece and roll, reduce deformation of the rolled piece, improve flatness accuracy, extend roll life, and thereby improve rolling speed and reduction, and improve productivity. Various lubricant additives, such as fatty acid oil, amide esters, polymers, etc., are added to existing emulsions, which can play a role in rolling lubrication, effectively reduce the friction force between the roller and the workpiece, improve the accuracy and surface finish of the product, and extend the service life of the roller. 1. The Effect of Emulsion Temperature on Rolling Force The use temperature of emulsion is also one of the main factors affecting rolling lubrication, and the temperature affects the size and spread of dispersed emulsion oil droplets. A low temperature may cause the emulsion to become rancid and grow bacteria, and low temperature is not conducive to the use of additives such as extreme pres
Evolution of green cutting lubrication technology
2023 / 03 / 14
Purpose of cutting fluid During the cutting process, high temperature and high pressure are produced at the cutting part due to severe friction, which seriously affects the service life of the tool, the precision and surface finish of the machined part. There are two main measures to reduce temperature, reduce friction, ensure tool life and workpiece accuracy: (1) Reduce friction during cutting and reduce tool wear; (2) Take away the high temperature gathered in the cutting part in time. The traditional lubrication method is to spray cutting fluid to the machining point. According to experience, the greater the supply of cutting fluid, the better the effect. In the past few years, "high pressure cooling" was actively promoted in the field of cutting. For a time, a large supply of cutting fluid was regarded as the "savior" of cutting. Hazards of using cutting fluid Since the 20th century, the machinery manufacturing industry has undergone new changes: (1) The world has paid extensive
What is the acceptable standard of turbine lubricating oil particle size?
2023 / 03 / 14
Oil particle size is an objective measure of the particle size in petroleum products. It reflects the distribution, size and quantity of particles in the oil. There are standards to follow: NAS1638, ISO4406, GJB420, GJB380. 1. The concept of particle size. The particle size refers to the number and concentration of solid particles with different particle sizes in the unit volume of oil, with the unit of pieces/100 ml. It is measured with a special particle size meter. Particle size is an important standard to judge whether turbine lubricating oil is qualified. It is generally believed that when people can't see the oil without particles, that is, the oil is not polluted. In fact, it is less than 40 μ Particles below m are invisible to the naked eye, and are more than 40 μ M Smaller particles have disastrous effects on hydraulic components or bearings, and often these small particles play a key role in the wear process. 2. Reasons for unqualified particle size in turbine lubricating oil. 1) Contaminants left by lubricating oil system components during manufacturing, assembly and overhaul. Such as hair, iron filings, welding slag, dust, etc. These pollutants were not cleaned timely and thoroughly during unit installation and flushing. 2) The oil enters
The secret of ensuring the best use of cutting fluid and effectively extending its service life
2023 / 02 / 26
1. Reasonable use of cutting fluid Reasonable use of metal cutting fluid can effectively reduce cutting force, cutting temperature and thermal deformation of the processing system, which can not only ensure the processing quality of the workpiece, but also extend the tool life and reduce the processing cost. The main functions of metal cutting fluid in mechanical removal are cooling, lubrication, cleaning and rust prevention. The effect of cutting fluid depends not only on the various properties of the cutting fluid itself, but also on the processing requirements, workpiece materials, tool materials, processing methods and other factors, which should be comprehensively considered, reasonably selected and correctly used. (1) Select according to processing requirements During rough machining, a large amount of cutting heat is generated due to large cutting amount. In order to reduce the cutting temperature, water-based cutting fluid with good cooling performance should be selected at this time. During finishing, the workpiece is required to obtain the best surface quality and smaller surface roughness value, so cutting oil should be used. (2) Corresponding to different processing methods In conte
How to choose lubricant for normal temperature chain and high temperature chain?
2023 / 02 / 16
What are the requirements for selecting lubricant for normal temperature chain? Basically, the lubricant used for the chain should meet the following two requirements: 1. Basic requirements: be able to cope with slow oscillation motion/high frequency pressure and oscillation load; The wear caused by mixed friction and boundary friction., 2. On the premise of sufficient budget, the lubricant is required to have good permeability, adhesion and anti-wear effect. Why should we meet the above two requirements? That is because: the anti-wear effect is good, which can maximize the service life of the chain. With good permeability and adhesion, the oil can reach the friction part in the chain link, allowing the chain to obtain continuous lubrication supply. The frequency of oil pumping will be reduced; The dosage will decrease naturally. How to choose lubricant for high-temperature chain? The working condition of high-temperature chain is more severe than that of normal-temperature chain, so the requirements for lubricant selection are hig
Principle system of cutting fluid formula
2023 / 02 / 02
1. Classification of cutting fluids Water-based cutting fluid can be divided into emulsion, semi-synthetic cutting fluid and fully synthetic cutting fluid. The classification of emulsion, semi-synthetic and fully synthetic usually depends on the type of base oil in the product: emulsion is a water-soluble cutting fluid that only uses mineral oil as the base oil; Semi-synthetic cutting fluid is a water-soluble cutting fluid containing both mineral oil and chemically synthesized base oil; Fully synthetic cutting fluid is a water-soluble cutting fluid that only uses chemically synthetic base oil (i.e., mineral oil). Each type of cutting fluid will contain various additives other than base oil: antirust agent, non-ferrous metal corrosion passivator, defoamer, etc. Some manufacturers will classify micro lotion; It is generally considered to be between emulsion and semi-synthetic cutting fluid. The diluent of the emulsion is milky white in appearance; The diluent of semi-synthetic solution is usually translucent, and some products are milky white; The diluent of the total synthetic solution is usually completely transparent, such as water or slightly colored.
What additives should be used for a good hydraulic oil?
2022 / 12 / 26
With the development of hydraulic technology, the requirements for hydraulic fluid are getting higher and higher. The performance of base fluid itself is far from meeting the requirements of hydraulic system. It is necessary to improve the performance of base fluid by adding various additives. At present, almost all the fluids used in hydraulic systems contain additives with various functions. The additives of hydraulic fluid can be roughly divided into two categories: one is to improve the physical properties of the fluid, such as oily agent, tackifier, anti foaming agent and pour point depressant. The other is additives to improve the chemical properties of oil, such as antioxidants, rust inhibitors, mold inhibitors, demulsifiers and metal passivators. 1. Oiliness Additive Oily agent is a kind of substance with strong polarity. Under low temperature and pressure, it can adsorb with metal surface to form a firm adsorption film, prevent metal from direct contact, improve oil film strength, and reduce metal friction and wear. In hydraulic fluid, commonly used oily agents include oleic acid, sulfurized whale oil (T401), sulfurized cottonseed oil (T404), sulfurized olefin cottonseed oil (T405), dimeric acid (T402), etc. 2. An
How to conduct depth inspection on ferrous metal water-based rust inhibitor?
2022 / 12 / 05
Ferrous metal water-based rust inhibitor is generally composed of corrosion inhibitor, complexing agent, alkali, wetting agent, etc. The substance that plays a key role in the rust prevention process is a corrosion inhibitor. Different inhibitors have different corrosion inhibition mechanisms. Different corrosion inhibitors have different antirust properties. Common inorganic corrosion inhibitors include sodium nitrite, sodium molybdate, sodium tungstate, boric acid, borax, phosphate, etc. They are all anodic oxidation inhibitors. There are more kinds of organic corrosion inhibitors, such as the well-known carboxylic acid salts: mono carboxylic acid, dicarboxylic acid, ternary acid, etc. In addition, fatty acid amides, borate esters, petroleum sulfonates, alkyl succinic acids, cationic quaternary ammonium salts, etc. This kind of corrosion inhibitor contains nitrogen, phosphorus, sulfur, oxygen and other elements with lone pair electrons, which can directly form a chemical adsorption layer on the metal surface. It is a mixed corrosion inhibitor. Common complexing agents include EDTA, phosphate, etc. The amount and type of complexing agents have a great influence on the rust resistance. The complexing agent chelates with calcium and magnesium ions in water, while the corrosion inhibitor generates sodium salt
Solution to cutting oil smoke and adhesion problems
2022 / 11 / 14
1. Smoke problem The smoke problem is caused by physical reasons, that is, the oil mist escaping into the air due to high-pressure crushing atomization. There are also chemical reasons, that is, the boiling point temperature of pure cutting oil is too low, the temperature in the processing area is close to the initial boiling point, and the cutting oil changes chemically when heated, producing smoke. The root cause of the problem is that the chemical causes are not easy to solve, which is also the most harmful. Improve the refining degree of cutting pure oil base oil and increase the initial boiling point. The higher the boiling point on the apparent physical and chemical indicators, the less likely it is to produce smoke. Cutting temperature is the root of generating oil vapor smoke. From the perspective of temperature control, there are two paths: controlling accumulated temperature and strengthening heat dissipation. Fundamentally, improving the ability of extreme pressure lubrication can delay the accumulated temperature reaching the boiling point range of cutting oil. From experience, the extreme pressure capacity is increased by 5%. Under the proper liquid supply pressure, the cutting temperature can be lowered by more than 30 degrees, which can significantly reduce cutting smoke. 2. Adhesion problem
Formula characteristics of industrial gear oil
2022 / 11 / 07
Industrial gear oil is widely used in steel, cement, coal, petrochemical and many other industries. With the rapid development of the national economy, its consumption is increasing year by year. In 2020, the domestic demand has reached 310000 t/a. According to the requirements of GB5903-2011, 16 physical and chemical indexes and bench performance of industrial gear oil, including kinematic viscosity, liquid phase corrosion, oxidation stability, four ball extreme pressure and anti-wear, and FZG bearing capacity, shall be tested before delivery. Some of the test items have a long period (for example, oxidation takes 13d) and high cost (FZG is 20000 yuan/time), which results in many oil batch test items, high test cost and delayed delivery, which is not conducive to timely supply to customers. If the factory batch inspection items are reasonably simplified according to the industrial gear oil formula and product performance characteristics, it can effectively avoid repeated waste and help the market to ensure supply. Characteristics of gear oil formula Industrial gear oil is developed according to the characteristics of gear box working conditions. It is generally required to have appropriate viscosity, good viscosity temperature performance, sufficient extreme pressure and anti-wear performance, good oxidation stability, anti emulsification performance, anti foam performance, rust prevention and corrosion resistance, etc., mainly involving extreme pressure agent, anti-wear agent, friction improver, pour point depressant, antioxidant, rust inhibitor, copper corrosion inhibitor, demulsifier, anti foam agent and other additives. According to the main role of additives
How are the quality inspection items of cutting oil and water-based cutting fluid different?
2022 / 11 / 02
The main quality control indicators of cutting oil include viscosity, flash point, pour point, fat content, sulfur content, chlorine content, copper strip corrosion, water, mechanical impurities, four ball test, etc. Water based cutting fluid shall be diluted with water when it is used, and its test items can also be divided into direct measurement and water measurement. The items directly measured include storage stability, sulfur and chlorine content, nonvolatile components, etc. The items to be measured after adding water include surface tension, pH value, foaming property, rust resistance, corrosivity, adaptability to paint, allowable amount of salt, antibacterial property, etc. The significance of most of these projects is relatively clear. Quality inspection items of cutting oil Fat content Fat is an oily additive in cutting oil and an important index to classify cutting oil. Fat in cutting oil can play a role in reducing friction coefficient and tool wear (especially effective in preventing tool flank wear). The cutting oil with more fat is especially suitable for nonferrous metal processing and the occasions where the cutting amount is small but the product precision and finish requirements are high (such as fine turning thread). Generally, saponific
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