Product category:
Materials and components
News Release from: John Crane | Subject: Wear- and corrosion-resistant coating technologies
Edited by the Engineeringtalk Editorial
Team on 04 November 2003
Wear- and corrosion-resistant coating
technologies
The range of wear- and corrosion-resistant coating technologies available from John Crane has been detailed in a new brochure.
The range of wear- and corrosion-resistant coating technologies available from John Crane has been detailed in a new brochure The publication provides a handy reference guide to the technical specification and performance details of various John Crane hard facings, and will prove to be a useful resource for both OEMs and end users involved in a variety of industries including power, metal and mechanical engineering, iron and steel, textiles, food, paper and petrochemicals
This article was originally published on Engineeringtalk on 29 May 2000 at 8.00am (UK)
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High velocity oxygen fuel coatings are among those described in the brochure.
These are produced using a high-velocity flame process that sprays particles at ultra high speed and creates a very dense coating.
The coating has a high bonding strength to the substrate, and is extremely hard compared to coatings produced by conventional techniques.
Details are also given on John Crane's APS plasma spray coating technology.
This combines high-speed powder spraying techniques with a gas mixture which has been ionised by an electric arc.
The resulting coating is in "cold condition" as the temperature of the machined pieces never exceeds 200C.
This creates a uniform coating with a bonding to the base material from 5000 to 9000lb/in2, and can be applied to any base material without the need for structural modification.
The third main technique included in the brochure produces plasma-transferred arc coatings.
This advanced John Crane technology allows the deposition and simultaneous welding of powders with nickel and cobalt base alloys.
This results in an excellent bond to the base material, and a uniformly dense coating with better physical-mechanical properties than the traditional processes.
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