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TWO NEW METAL COATINGS

TWO NEW METAL COATINGS high-strength, wear-resistant coat­ stampings as an alternative to TWO NEW METAL ings. These are named Metco 445 making the complete component in and 447 respectively. Both are bronze. This coating can also be composite powders which are in­ used to restore an undersize sur­ COATINGS: jected into a flame of a plasma spray face . The nickel-aluminium- gun where the coating material is molybdenum is used to apply a melted and projected on to a wear-resistant coating on to a prepared surface to build up into a lightweight or inexpensive base, or Copper-Aluminium coating. There is no limitation to to restore a worn part. thickness. Very little heat is gene­ The advantages of spraying are rated. Internal diameters can be that the need for an initial bonding and sprayed using an extension nozzle coat is eliminated; the area to be on the gun. sprayed is cleaned and the coating Nickel-Aluminium- sprayed in one operation. Thin Applications coatings can be applied and finish Typica l applications for the machined to a feather-edge if Molybdenum aluminium-bronze coating are wear- required. Metco 445 is easily rings, piston guides, slippers, and machined by turning and Metco 447 by grinding. for coatings required on steel METAL coatings are mainly a metallurgical subject. It is the metallurgis t who will decide whether to use a sprayed surface or bare metal. The question of friction between a sprayed metal surface in moving contact with another sur­ face, however, is in the province of the tribologist . When it is decided to spray surfaces to provide extra protection against wear, and extend the life of a component, then this is certainly a tribology subject. Since the need for conservation of materials is a topical and essential subject, a lot of attention is being given by industry to sprayed metal coatings. Two new coatings Two new coating s are announced by Metco Ltd, Chobham, Woking, Surrey. One is a copper-aluminium powder to produce an aluminium- bronze type of coating for bearing applications, and the other a nickel- aluminium-molybdenum for hard, 146 INDUSTRIAL LUBRICATION AND TRIBOLOGY, JulyIAugust 1975 http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Industrial Lubrication and Tribology Emerald Publishing

TWO NEW METAL COATINGS

Industrial Lubrication and Tribology , Volume 27 (4): 1 – Apr 1, 1975
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Publisher
Emerald Publishing
Copyright
Copyright © Emerald Group Publishing Limited
ISSN
0036-8792
DOI
10.1108/eb053096
Publisher site
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Abstract

high-strength, wear-resistant coat­ stampings as an alternative to TWO NEW METAL ings. These are named Metco 445 making the complete component in and 447 respectively. Both are bronze. This coating can also be composite powders which are in­ used to restore an undersize sur­ COATINGS: jected into a flame of a plasma spray face . The nickel-aluminium- gun where the coating material is molybdenum is used to apply a melted and projected on to a wear-resistant coating on to a prepared surface to build up into a lightweight or inexpensive base, or Copper-Aluminium coating. There is no limitation to to restore a worn part. thickness. Very little heat is gene­ The advantages of spraying are rated. Internal diameters can be that the need for an initial bonding and sprayed using an extension nozzle coat is eliminated; the area to be on the gun. sprayed is cleaned and the coating Nickel-Aluminium- sprayed in one operation. Thin Applications coatings can be applied and finish Typica l applications for the machined to a feather-edge if Molybdenum aluminium-bronze coating are wear- required. Metco 445 is easily rings, piston guides, slippers, and machined by turning and Metco 447 by grinding. for coatings required on steel METAL coatings are mainly a metallurgical subject. It is the metallurgis t who will decide whether to use a sprayed surface or bare metal. The question of friction between a sprayed metal surface in moving contact with another sur­ face, however, is in the province of the tribologist . When it is decided to spray surfaces to provide extra protection against wear, and extend the life of a component, then this is certainly a tribology subject. Since the need for conservation of materials is a topical and essential subject, a lot of attention is being given by industry to sprayed metal coatings. Two new coatings Two new coating s are announced by Metco Ltd, Chobham, Woking, Surrey. One is a copper-aluminium powder to produce an aluminium- bronze type of coating for bearing applications, and the other a nickel- aluminium-molybdenum for hard, 146 INDUSTRIAL LUBRICATION AND TRIBOLOGY, JulyIAugust 1975

Journal

Industrial Lubrication and Tribology – Emerald Publishing

Published: Apr 1, 1975

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