SW DECEMBER 2021 web | Page 44

PRE-TREATMENT , SURFACE PREPARATION , DEGREASING & CLEANING
For finishing processes with plastic media the new , non-foaming “ N ” version produces more homogeneous processing results and improves the cost-efficiency , productivity and sustainability . is augmented by a longer usable life of the media and process water and a reduced compound usage . ” Because of the disruptive foaming many users had been using ceramic media , even though this was not the best option . For these users the non-foaming plastic media version is a great opportunity to optimize their finishing processes ”, concludes Christian Höhn . All plastic media in the comprehensive Rösler portfolio are available in the non-foaming “ N ” version .
Dust-free drying with organic drying media
The third new development in the consumables sector in 2021 allows a significant reduction of the dust occurring during drying processes utilizing organic drying media such as maizorb . Even in small quantities the liquid , easily dispensable , Anti-Dust additive significantly reduces the formation of dust . Depending on the operating times and work pieces the additive can be manually added or dosed fully automatically .
During drying operations , where organic drying media , such as maizorb , is used , the Anti-Dust additive is effectively preventing the formation of dust . The additive can be easily dispensed and complies with the prevailing food standards . This results in cleaner work pieces , cleaner production conditions and a more comfortable working environment .
processing aim can frequently no longer be achieved within the defined cycle time . Moreover , the foam containing metal and media fines contaminates the surface of the finished work pieces . The foam also causes a deterioration of the process water cleanliness , requiring a higher compound dosing rate and forcing the user to replace the process water more frequently . Last-butnot-least , foam discharged from the mass finishing machine contaminates the working environment . In the past the users tried to control the foaming by adding special chemical compounds . But this was not very successful , caused additional costs and reduced the process sustainability .
With its non-foaming plastic media , the so-called “ N ” version , the R & D department at Rösler has now developed a better solution . Christian Höhn , head of the technology management at Rösler , explains : ” Prior to introducing the product in the market we conducted extensive field trials with special pilot users . The trials proved convincingly that the non-foaming plastic media has the same grinding characteristics and performance as the standard product ”. The trials also demonstrated that with the newly developed media the mass finishing processes are running much more stable , and the required results are achieved in shorter cycle times . This positive effect regarding cost-efficiency and sustainability
The Anti-Dust additive is employed in drying operations for metal and plastic components , whenever organic drying media is used . Without negatively impacting the drying performance it guarantees absolutely spot-free surface finishes . At the same time , dust residues on the finished work pieces and the surrounding area are minimized . This also represents a huge step towards a clean , low-dust working environment . Rainer Schindhelm , division manager of the consumables production , explains : „ Because it is purely organic and complies with the prevailing food standards , the Anti-Dust additive also represents a significant contribution towards a cleaner environment ”.
Increasing the productivity of the mass finishing technology , improving overall sustainability and reducing CO2 emissions ; these are the main goals of the development work at Rösler in the year 2022 . Various solutions from the sectors equipment technology and consumables are already being tested at various customers .
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42 DECEMBER 2021 read online : www . surfaceworld . com