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2 Archives of Foundry Engineering

2 2009

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Possibilities of improving the durability of pressure moulds

Orłowicz A. W., Mróz M., Tupaj M., Betlej J., Płoszaj F.

Archives of Foundry Engineering

2009

Vol. 9, iss. 2

119-122

This study analyses factors that influence the durability of pressure moulds. Materials for pressure moulds are also characterized here, as well as methods of refining moulds by applying coats which create a thermal and anti-erosion barrier.

Influence of pressure mould material on the durability of coating a thermal and anti-erosion barrier

Orłowicz A. W., Mróz M., Tupaj M., Betlej J., Płoszaj F.

Archives of Foundry Engineering

2009

Vol. 9, iss. 2

113-118

This study presents the research results of the durability of coating (thermal and anti-erosion barrier) of a mincer cap casting pressure mould. Tests were conducted with the use of an IDRA OL320 pressure machine. Durability of the mould with TiN coating applied by PVD was analyzed. The geometrical structure of the mould surface was assessed. It was found that the surface roughness and precipitations of metallurgical origin in the mould material, as well as the surface roughness of the coating do not influence the barrier lifespan as much as microcracks on the mould surface do.