{"id":20356,"date":"2021-02-22T06:30:02","date_gmt":"2021-02-22T06:30:02","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=20356"},"modified":"2021-02-22T07:22:47","modified_gmt":"2021-02-22T07:22:47","slug":"what%ef%bc%9fcan-metal-cutting-coolant-factually-cause-severe-cancer","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/it\/what%ef%bc%9fcan-metal-cutting-coolant-factually-cause-severe-cancer\/","title":{"rendered":"Cosa\uff1fIl refrigerante per il taglio dei metalli pu\u00f2 effettivamente causare un cancro grave?"},"content":{"rendered":"
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Classification of cutting fluids<\/strong><\/strong><\/h2>\n\n\n\n
Proportion by processing type and application:<\/strong><\/strong><\/h3>\n\n\n\n
According to morphology, there are liquid cutting fluid and solid lubricant. There are two kinds of liquid cutting fluids commonly used in production: Oil-based cutting fluid (cutting oil) mainly used for lubrication and water-based cutting fluid (cutting fluid) mainly used for cooling.<\/strong><\/strong><\/p>\n\n\n\n
Oil based cutting fluid: oil based cutting fluid, also known as cutting oil, its basic composition is base oil (mineral oil or synthetic oil). When using, it doesn’t need to be diluted, and the stock solution is used directly. Additives include oily agents, extreme pressure agents (such as chlorine, sulfur, phosphorus, etc.), corrosion inhibitors, antioxidants, etc.<\/strong><\/strong><\/p>\n\n\n\n
Water based cutting fluid is the most widely used cutting fluid at present, and its products account for about 70% of the total market share of cutting fluid. Water based cutting fluid needs to be diluted with water and then used. According to the diluted state, it can be divided into emulsion cutting fluid, microemulsion cutting fluid and synthetic cutting fluid.<\/strong><\/strong><\/p>\n\n\n\n
Function and composition of liquid cutting fluid<\/strong><\/strong><\/h3>\n\n\n\n
The main functions in machining are cooling, lubrication, cleaning and rust prevention. Because of the convection and vaporization of the liquid, the surface temperature of the cutting tool and the workpiece can be reduced, so as to prevent the surface burn and deformation of the workpiece. In addition, cutting fluid should have foam resistance and mould resistance, so that it can discharge no pollution to the environment, do harm to human body and use economy. For this reason, special additives should be added to the cutting fluid, such as oiliness agents (adsorbed on the surface of the workpiece to form oil film), extreme pressure agents (forming strong chemical membranes at high temperature and high pressure, anti friction and anti caking), rust inhibitor (preventing metal corrosion), defoamer (preventing foaming when cutting fluid is sprayed), and anti oxidant (to prevent cutting oil at high temperature). Reduction oxidation), surfactant, etc.<\/strong><\/p>\n\n\n\n
There are three kinds of oil mist in the process of liquid cutting fluid<\/strong><\/strong><\/p>\n\n\n\n
(1) Clean oil mist produced by jet impact, free of solid dust;<\/strong><\/p>\n\n\n\n
(2) Smoke generated by evaporation or burning due to high temperature of heating or high speed cutting;<\/strong><\/strong><\/p>\n\n\n\n
(3) Oil mist containing grinding dust produced by metal cutting fluid jet during grinding.<\/strong><\/p>\n\n\n\n