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Machinery & Machine Safety


Why you MuSt conSider ceraMic Standard coMponentS to reduce abraSion and Wear


Abrasive wear can be extremely damaging – it can change the critical dimensions and tolerances of a component, cause machinery and equipment to rapidly deteriorate in performance, and ultimately cause machine failure and productivity loss. For those looking to reduce the effects of wear and abrasion, there are now standard components made from ceramics specifically designed for the task. norelem’s Marcus Schneck explains the benefits and looks at different applications where ceramic standard components can be applied.


h


igh-performance ceramics are becoming increasingly important, especially in manufacturing. due to the properties of


ceramic, a longer life cycle can be achieved and a wide range of requirements can be met. ceramic materials are temperature resistant with hygienic materials, which is not only suitable for mechanical engineering, but also for the automotive industry, the food and pharmaceutical industry and circuit board manufacturing. the technical ceramics market is expected to grow by 9.3 per cent annually between 2020 and


2027 due to the demand for durable and high temperature resistant materials.


Be ‘weAry’ oF ABrASion Wear is the progressive loss of material from the surface of a solid body as part of mechanical processes, for example, contact and relative movement of a solid, liquid or gaseous counter body. Meanwhile, abrasion is the removal of material through furrowing and scoring stress. there are two basic forms of abrasive wear:


two-body abrasion and three-body abrasion. a simple description of two- body abrasion would be a hard, rotating surface cutting into a soft, fixed surface. and three- body abrasion can be explained as a hard particle moving between two surfaces. if the wear of a


component is not recognised in time and it subsequently breaks or fails, damage can also occur to adjacent parts and machinery - resulting in unscheduled downtime and production standstill. difficult operating conditions or very long


turnaround intervals can lead to severe wear on the surface of the components if the correct material is not being used. for example, locating pins, which are


frequently used in the positioning of metal sheets, are exposed to increased abrasion within special operating conditions. progressive material removal when inserting the sheets can influence the positioning accuracy of the fixture, requiring ceramic material to be used.


ConSider CerAMiCS the use of ceramic products often results in competitive advantages, after all the positive properties are endless: the high dimensional stability, flexural strength and wear resistance to name just a few. components made of high- performance ceramics operate with high precision, showing almost no signs of wear even under heavy use. in many applications where the robustness


of the components is important, the use of components made of high-performance ceramics is worthwhile. the higher procurement costs are more than offset by the longer service life. ceramic also has a thermal and electrically insulating effect. this is an advantage in all applications where there is a risk of electric breakdown.


36 June 2021 | factory&handLinGSoLutionS


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