Preparation, replacement and precautions of water-soluble cutting fluid
January 09, 2023
Recently, the customer of a machining factory reported that the machine tool and the workpiece were rusted after a period of time when cutting fluid was used to process the workpiece. What is the reason? Is there a problem with the cutting fluid? Or is there a problem with the processing technology?
Through in-depth understanding of on-site production, the following problems were found: Configuration of cutting fluid 1) The configuration must follow the principle of water before liquid. The configured bucket is filled with tap water to about 3/4 of the height of the bucket, the vortex is stirred, and the raw liquid is poured into the metering bucket according to the preset proportion. The mixing action is maintained before and after the pouring process. Do not configure directly in the machine water tank. 2) When adding cutting fluid in the production process, be sure to add it according to the use proportion in the manual. Never add only water without cutting fluid, otherwise it may lead to rust of machine tool parts. Cutting fluid replacement cycle 1) It is recommended to replace it once a month in hot summer and rainy season. Replace it every three months in winter. In other seasons, it shall be replaced once every two months. 2) When replacing the cutting fluid of the machine tool, the original cutting fluid must be cleaned and thoroughly cleaned; Otherwise, the deteriorated original residual cutting fluid may cause rapid deterioration of the cutting fluid just replaced. Generally, first flush the water tank and water tank with clean water, then prepare a cutting fluid solution with a certain concentration ratio for cleaning, and finally allow the cutting fluid to be prepared and run in the machine for about 5 minutes. 3) After the cutting fluid is added to the machine tool with water, it should not be left unused for a long time. When the machine tool is not in production, it is better to turn on the pump every day to circulate the cutting fluid for 30 minutes. Precautions: 1) Do not purchase cutting fluids without brands. 2) The cutting fluid shall be configured in strict accordance with the configuration proportion required in the manual of the purchased cutting fluid. 3) If the cutting fluid is not replaced for a long time, bacteria will grow and deteriorate, the PH value will drop significantly, and there will be peculiar smell, The above non-standard operations will lead to rusting of machine tool parts and affect the accuracy of the machine tool.
