1. The basic requirements of cutting fluid in the processing of aluminum alloy workpieces; 1) Strong anti-oxidation performance: Since aluminum alloys are non-ferrous metals that are easily oxidized, the anti-oxidation performance between processes should be considered in the cutting fluid when processing aluminum alloys, usually seven days to one month, in order to prevent the damage caused by poor oxidation resistance secondary processing. The poor anti-oxidation effect of cutting fluid will affect the production efficiency of the factory and increase the processing cost.
2) Good lubricating performance: Make the processed aluminum alloy meet the requirements of surface brightness, improve the qualified rate of products and reduce the use cost of tools.
3) Strong extreme pressure cooling performance: due to the low melting point of aluminum alloys and the frequent need for drilling and tapping, especially blind holes, cutting fluids are required to improve extreme pressure cooling capabilities to prevent aluminum alloys from tapping Tooth decay phenomenon occurs in the process of teeth, and the brightness of the workpiece is maintained.
4) Good cleaning performance and good sedimentation: the impurity particles produced by aluminum alloy processing are small, and the sedimentation is better, and scratches are less likely to occur during the circulating cutting fluid processing, the cleaning performance is good, the surface of the product is cleaner, and the subsequent workpiece is easier cleaning. It also makes it easier to keep the machine clean.
5) Strong anti-corrosion performance: The anti-corrosion performance of the cutting fluid is strong, so as to avoid several problems caused by the deterioration of the cutting fluid, such as the odor of the cutting fluid, and the corrosion of the machine and the workpiece by the cutting fluid.
6) Strong anti-rust performance: Most of the machine and equipment parts for processing aluminum alloys are made of steel and iron parts, such as countertops and screw rods, so the cutting fluid is required to have a certain anti-rust ability.
7) Strong environmental protection: At present, the environmental protection requirements are becoming more and more strict, and the requirements for the life and environmental performance of the cutting fluid in the processing process are also getting higher and higher. Reduce waste liquid treatment costs and labor costs caused by short cutting fluid life and poor environmental protection.
2. Disadvantages of processing saponified oil and emulsified oil The reason why saponified oil is cheap is that saponified oil manufacturers usually use waste motor oil, cheap vegetable oil, etc. as Base Oil, and blend them with cheap additives in order to reduce production costs. Therefore, there are the following disadvantages:
1) Short service life, easy to stink and deteriorate. 2) The environmental protection performance is poor, the harmful substances are high, the environmental pollution is serious, and the waste liquid treatment cost is expensive. 3) Poor cleaning performance, easy to make the machine dirty and breed bacteria. It is difficult to clean the workpiece after processing. 4) The anti-rust effect is poor. 5) Strong irritant, easy to cause skin allergy of employees. The low-end emulsified oils on the market are usually blended from non-standard base oils (such as thread reduction oils) by adding emulsifiers, fungicides, antioxidants, etc. Therefore, there are the following disadvantages:
1) Short service life, easy to stink and deteriorate. 2) The environmental protection performance is poor, and the waste liquid treatment cost is expensive. 3) Poor cleaning performance, easy to make the machine dirty and breed bacteria. It is difficult to clean the workpiece after processing. 4) The anti-rust effect is poor. 5) Strong irritant, easy to cause skin allergy of employees. 3. Advantages of semi-synthetic micro-emulsion cutting fluid for processing aluminum alloy 1) Strong anti-oxidation performance, meeting the surface protection requirements of aluminum alloy process parts. 2) Good lubricating performance, meet the lubricating performance required in aluminum alloy processing, and do not stick to the knife. 3) The extreme pressure cooling effect is good, which meets the extreme pressure cooling requirements required in the aluminum alloy processing. 4) Strong anti-corrosion performance and long service life. 5) Good anti-rust performance, meet the needs of simultaneous processing of different materials such as aluminum alloys containing bimetals (plus ferrous metals such as iron), and protect the machine equipment table, screw and other parts from rusting. 6) good environmental performance, does not pollute the environment. 7) Strong cleaning performance, the more the machine is used, the cleaner it is, and the workpiece is easy to clean. 8) It does not irritate the skin (except for special constitutions), and employees are not allergic to it. 9) Comprehensive cost performance 4. Cost comparison
saponified oil
1) Consumption cost comparison, the ratio of saponified oil to water is usually 1:5-10, and the ratio of semi-synthetic micro-emulsion cutting fluid to water is 1:15-20. From the ratio of one barrel of synthetic metalworking fluid, it can be worth more than two barrels of saponification. Oil. The average market price of saponified oil is between 1500 and 1900, and the price of two barrels is more than 3000. The market price of semi-synthetic micro-emulsion cutting fluid is 3000-4000, and the consumption cost has not increased. Emulsified oil 2) Compared with the consumption cost, the price of a single barrel of low-end emulsified oil on the market is about 2000-2500, and the water ratio for processing aluminum alloy is 1:15-20. even lower. The market price of semi-synthetic micro-emulsion cutting fluid is about 3000-4000, and the actual consumption cost difference is not big. 3) The cost of waste liquid treatment. According to the relevant regulations of the national environmental protection department, the waste liquid needs to be recycled and processed by the relevant departments, and the treatment fee is about 3,200 to 6,000 per ton. Saponified oil and emulsified oil have a low service life and are easy to stink, and the waste liquid needs to be treated frequently. The European synthetic micro-emulsion cutting fluid has a long service life and usually only needs to be used to increase the fluid due to lack of fluid. 4) Other costs, the saponified oil has poor cleaning performance, the subsequent cleaning of the workpiece is more difficult, and the cleaning time and material cost are increased. The semi-synthetic micro-emulsion cutting fluid has strong cleaning ability, which can not only reduce the cleaning time of the workpiece, but also make the machine more clean after use, reduce the time cost of cleaning the machine, and have a longer service life than the saponified oil machine. long. 5) Because the emulsified oil and saponified oil are easy to stink and deteriorate, if the deteriorated cutting fluid is not treated in time, it will become extremely corrosive to the equipment and the workpiece, resulting in the processing cost of the machine workpiece. 6) The processing environment has become worse. Nowadays, environmental protection is becoming more and more strict. Enterprises with poor processing environment are the targets of the environmental protection department. The losses caused by the shutdown during the crackdown were also considerable. The semi-synthetic micro-emulsion cutting fluid is an environmentally friendly cutting fluid that does not pollute the environment.
