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How to choose Metalworking Fluids

Number of visits: Date:2015-12-16 17:43:53

  The first step in metalworking fluids management program is suitable for the processing specific selection process fluid. Metalworking Fluids can be divided into four types: pure oil, soluble oils, semi-synthetic and fully synthetic liquid solution. Heart performance of these products can meet the different requirements of light duty to heavy duty. Due to the different chemical composition, between different metalworking fluid products a huge difference in performance, the possibility and oil content, chemical content of lubricants and extreme pressure agents, cleaning performance, fungicides oxygen and other parameters. Selection criteria discussed at all in determining the needs of a specific processing. Selection criteria 1 metalworking fluids for optimum performance, choose a proper metalworking fluid, the whole process must be fully considered factors.

These factors include the following.

  (1) has a small workshop mold for a machine tool, and workpiece material and processing technology constantly changing in terms of a small shop, choose a common type of product can reduce the need for variety. For processing a large number of the same piece of large workshop, they should choose a meet specific needs.

  (2) Type of machine tool selection should consider the use and design before the product, which is very important. Some tools, especially some early models of machine tools, metalworking fluids may be used as a machine moving parts and gear lubricant. in this situation. We need to select a physical high lubricity of metalworking fluids. We also need to consider the machine sealing system to ensure they are designed so that the machine can be used in an aqueous environment. If you do not fit in an aqueous environment, then you must select the type of pure oil metalworking fluids.

  (3) the difficulty of processing the difficulty of processing determines the working fluid lubrication requirements. There are two types of lubricants, i.e., chemical and physical lubricant lubricant. If you want to get a good cutting / grinding performance, not necessarily use oil products, but must consider the metal removal rate, feed rate and cutting speed, finish requirements and other factors. According to the difficulty of processing, metal processing types can be divided into light-load (surface grinding of cast iron), the load (steel turning, milling), Heavy Duty (centerless grinding carbon steel, sawing) and very heavy (profile grinding and thread grinding, broaching). If you select only one metal working fluids for all processing steps, then it must follow the most difficult process to select metalworking fluids.

  (4) of the workpiece to be machined workpiece material type of material (cast iron, steel, aluminum, titanium, copper, glass, carbon fiber, plastics, etc.), the choice of metal working fluids is very important to [16,17]. Some Metalworking Fluids well control metal corrosion and / or discoloration, but may not necessarily be compatible with all materials. Some metalworking fluid formulations are designed for specific metals. The workpiece material itself hardness and mechanical division workability also must be considered.

  (5) Dilution water quality because the water is water based metalworking fluid is the main component (90% to 95%), its quality is an important factor affecting the performance of metalworking fluids. Quality factors will be described in detail in the following sections. For many emulsified oil products, if the water hardness is greater than 200ppm, the stability of the working fluid will occur. Water contains large amounts of sodium chloride or sulfate (greater than 150ppm), corrosion and / or corruption problem is exacerbated. On the other hand, soft water (hardness less than 50ppm) will cause the product to generate bubbles. Therefore, water quality is very important to understand before choosing metalworking fluids.

  (6) filtration system type single tank or several systems for liquid metal working fluids have different requirements. Similarly, the type of filtration system used, the settlement system, or some type of forward filter media (paper, cloth or metal filter), similar to a centrifuge or a cyclone, consent will affect the choice of metalworking fluids. Obviously Settlement System Requirements metalworking fluids have settling properties howl. Filter with filter media requirements metalworking fluids can penetrate the media without clogging. Metalworking fluid separator requires stable enough to withstand the requirements of the separation process.

  (7) potential contaminants will seriously affect the life and performance of metalworking fluids. Within Metalworking Fluids often find some oil, rail oil, hydraulic oil, anti-rust agents, floor cleaners and heat treatment and the like contaminants. Different metal working fluids for these pollutants have different mechanisms, especially oil pollutants. Some contaminants may emulsification, and some contaminants are impossible to emulsify. Although a majority of metalworking fluids may allow a small amount of capacity pollutants; but a large number of pollutants will shorten the life of metalworking fluids and lead to its performance more volatile.

  (8) Environmental reserves and management conditions metalworking fluids stored prior to use where and how to store will affect its performance. Some Metalworking Fluids winter if left outdoors or stored in a warehouse without heating will cause it to freeze and eventually stratification; some of metalworking fluids if placed in strong direct sunlight outdoors, it will degenerate. Metalworking Fluids must consider dosing conditions and Engineering compatibility. Water-soluble metalworking fluids, it must also consider the concentration of management. If these conditions are not met, then you should choose to apply a wide range of products.

  (9) to avoid the side effects of some grinding very transparent system of metalworking fluids; part of the workshop may require the use of special color or smell of the product. If regardless, metalworking fluids should not be affected by side effects such as salt spray and dermatitis problems, they must be safe and enjoyable to use. In addition, metalworking fluids can no longer leave the surface nasty residue or damage the machine paint.

  (10) Waste treatment / recycling plant in terms of the degree of difficulty for many. Select metalworking fluids decisive factor is whether and waste treatment process compatible. If you are unable to effectively and economically deal with metalworking fluids, then the product itself has no meaning any performance advantage. Before selecting metalworking fluids, plants usually arrange a detailed waste handling test. As long as the waste water treatment products will be considered by the real machine test. With the advent of more and more within the plant recovery system, and whether the plant is currently compatible recycling system or be installed, it became the metalworking fluid performance of another judge basis. In order to make recycling system to work properly, you must adjust the entire plant was built using the same standard metalworking fluid which has become select Metalworking Fluids must consider poppies.

  (11) Chemical Restrictions Given the health and safety considerations for specific chemicals or the environment, waste disposal issues, some factories strictly limit the use of certain ingredients in the formulation. Some industries, such as aviation and nuclear power plant equipment manufacturers restricted halogen compounds. So not only necessary to get their hands restrictions from the list of chemicals, but also know that these chemicals allowable amount. In some cases, these trace chemicals may be present as impurities in the product in the second, but because content is extremely low, may not affect the use of the product.

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