from the conferences organized by TANGER Ltd.
One of the most important parameters of the alphining process, besides the time of immersion in the bath and the chemical composition of the metal, is the temperature of the liquid alloy. Alphinizing is an immersion process of aluminium plating of a part in order to produce a thin adherent layer on its surface which, after casting into a mould, is a bonding layer in a bimetallic connection between ring carrier and piston. This paper presents different alphin temperatures for cast iron ring inserts in order to compare the influence of the process temperature on the quality of the produced diffusion layers. It turns out that lowering the temperature from 770°C to 750°C gives good results in terms of quality of produced layers and in terms of extension of the use of one batch of metal to the furnace by about 25-30%. Temperature optimization makes it possible to reduce the consumption of primary materials, energy consumption and, as a result, to reduce the costs of manufactured products.
Keywords: Aluminum alloys, alphinizing process, casting, quality, automotive© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.