How to deal with the surface residue of metalworking fluid?
March 01, 2023
Why does metalworking fluid remain? What are the hazards of residual metalworking fluid? How to deal with the residue of processing fluid? ... ... We aim at the above problems, propose analysis and solutions. Get to know it quickly~
Why does metalworking fluid remain? As we all know, metalworking fluid is known as the "blood" of the manufacturing industry. Its main function is to achieve lubrication, cooling, cleaning, rust prevention and other functions in the process of metal processing. The rust prevention is achieved through the antirust film left by the metalworking fluid on the metal surface. Therefore, we are not discussing whether the metalworking fluid should leave residues, but whether the residues should be left purposefully. What are the hazards of residual metalworking fluid? The residue of metalworking fluid on the surface of parts will affect the amount of metalworking fluid taken away, the use function, the filtering condition, the cleanliness of machine tools and parts, and the replacement of grinding wheels.
In the process of production, if iron filings and grinding wheel ash are stuck by the residue of the metalworking fluid on the surface of the machine tool, the iron filings and grinding wheel ash will act like scrapers and abrasives, resulting in wear of the machine tool's seals, guide rails, sliders, cams and tappets, and thus reducing the service life of the machine tool. Therefore, the residues should be removed during the maintenance of the machine tool. It is more important to select the metalworking fluid that meets the production design to avoid the above hazards. How to observe residues? Inject 5ml of concentrated cutting fluid into the glass plate and expose it to atmospheric conditions at room temperature for one month or more. Generally speaking, the longer the exposure time in the atmosphere, the easier it is to observe the oxidation degree of cutting fluid. This experiment can also be observed by adding different machine tool oil leakage and minerals in water at the same time to simulate the situation that may be encountered in real production. Classify the results of residue test Classification by appearance or by solubility The cutting fluid with proper formula is antioxidant. This way of observing the residue can help us to distinguish the advantages and disadvantages of the cutting fluid and select a more suitable cutting fluid. However, if the residue of processing fluid has had a negative impact on the production process, machine tool, workpiece, etc., it is difficult to fundamentally solve the problem through simple maintenance, and the residue of processing fluid must be reduced from the source. How to minimize residues? Select appropriate processing fluid to make its residue acceptable in production application and meet other functional requirements in production; Mix the processing fluid into a suitable concentration. If the concentration of the processing fluid you use is twice the minimum concentration that meets the working requirements, you will get twice the residue; Use high-quality water to mix the processing fluid. "Hard water" is one of the main sources of cations. It can react with the components in the processing fluid to generate water-insoluble residues; Timely remove the residue and metal chips in the tank, which may be the source of cations and react with the processing fluid to generate residues different from water; Regularly "wash" the machine tool with processing fluid to dissolve the residue formed by water evaporation and reduce the amount of supplementary processing fluid. In short, regular cleaning can easily keep the machine tool clean; If there is residue on the machine tool that is difficult to clean, gently spray or brush the surface of the machine tool with soluble surfactant to make it penetrate into the residue before cleaning the machine tool, these methods are very helpful The problem of residues is closely related to the selection of metalworking fluid. An excellent metalworking fluid can play a vital role in the processing process, thus helping enterprises to enhance the processing ability, improve product quality and improve production efficiency.
