Although the method is most familiar to us from the food industry, conservation is also a common practice in many fields of industry as a way of extending durability by slowing down the ageing processes of workpieces. For example, metal workpieces can be protected against corrosion processes by applying a protective layer of conservation oil or passivating them. However, to ensure that the protection medium can be applied to cover the entire surface, components must be thoroughly cleaned of production residues and dried beforehand. We can combine these steps for you in one PURIMA system.
Incrustations and dried production residues on components are typical requirements for the process step of spray cleaning. The aqueous cleaning medium is sprayed with high precision at a pressure of up to 25 bar using a nozzle or spray onto the surface that is to be cleaned. This can be done from all directions. The impurities are either removed directly by the mechanical energy and swept away, or softened so that they can be fully removed in the following cleaning step. To achieve an even application, the workpiece is kept in motion by a material conveyor cage or by moving nozzles. If the cleanliness requirements are particularly high, the spraying process can be employed as a final fine-cleaning stage in industrial cleaning systems. 100% of any remaining particles are removed from the surface.
Cleaning components in an immersion tank is one of the traditional applications in the field of industrial parts cleaning. With immersion cleaning, the material that is to be cleaned is immersed in an aqueous alkaline or acidic degreasing solution and chemically treated there for a defined period of time. It is also possible to improve the rate at which impurities are loosened by using movement in this case too: rotation or oscillation in the tanks achieves an even distribution of the cleaning medium. The immersion degreasing process can also be made more efficient by raising the temperature of the tank. The time is also adjusted depending on how dirty the components are. The process is simple and economical, and is gentle on sensitive surfaces: by changing the above factors, the cleaning effect can be adjusted according to how dirty your components are.
Impurities such as shavings and oil can often be found on workpieces immediately after grinding or cutting processes. In most cases these must be removed through a preliminary cleaning process. Pressure flooding is the first or one of the first process steps in many PURIMA systems. This involves a targeted combination of spray cleaning and ultrasound cleaning. Nozzles or sprays are arranged in the process tank in a specific relation to the workpiece. The workpiece is treated under water at a pressure of 3 to 15 bar and sound waves between 20 and 130 kHz . The synergy of pressure, sound and volume in the cleaning tank produces strong flow rates, and even cavitation in hollows and surfaces. This leads to an effective, vortical liquid exchange on the treated surfaces, even with complex workpieces. It is easy to integrate a drying and conservation stage into our systems at the end of each cleaning process if that is a requirement and part of the desired result.
Order: cleaning engine components | Challenge: complex geometries and high cleanliness requirements | Implementation: cleaning line with 4-step cleaning process | Process: immersion cleaning PURIMA develops sophisticated modular system for cleaning engine components. For a major customer in the aviation industry, PURIMA, a long-standing expert in special machine construction in
Every project begins with an idea or a client request. The best solutions emerge in a joint dialogue with our clients from all over the world. Contact us and take the first step towards your customised system solution in the field of industrial parts cleaning or the capture of harmful substances. We’re looking forward to hearing from you!