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Tungsten Carbide High Velocity Thermal Spray Coatings in the Oil & Gas Industry

This paper will explore several variables which affect the tungsten carbide coating material deposited by a high velocity thermal spray process (HVTS) on Oil & Gas components such as valve sealing components (gate, ball, seat) and on other equipment (pistons for example on BOP’s or Blow Out Preventers). The purpose of coating these components is to gain wear/abrasion resistance as well as to impart some corrosion resistance. 

Product Number: 51216-006-SG
Author: Herman E. Amaya, Lee Schmerling
Publication Date: 2016
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This paper will explore several variables which affect the tungsten carbide coating material deposited by a high velocity thermal spray process (HVTS) on Oil & Gas components such as valve sealing components (gate, ball, seat) and on other equipment (pistons for example on BOP’s or Blow Out Preventers). The purpose of coating these components is to gain wear/abrasion resistance as well as to impart some corrosion resistance. Among the issues that will be addressed are the type of tungsten carbide powders that are used and a brief description of the qualification procedure to ensure the proper application of the process. In addition to the above, a review of some of the problems that can occur with the tungsten carbide sprayed components will be discussed along with some of the consequences of these problems.

This paper will explore several variables which affect the tungsten carbide coating material deposited by a high velocity thermal spray process (HVTS) on Oil & Gas components such as valve sealing components (gate, ball, seat) and on other equipment (pistons for example on BOP’s or Blow Out Preventers). The purpose of coating these components is to gain wear/abrasion resistance as well as to impart some corrosion resistance. Among the issues that will be addressed are the type of tungsten carbide powders that are used and a brief description of the qualification procedure to ensure the proper application of the process. In addition to the above, a review of some of the problems that can occur with the tungsten carbide sprayed components will be discussed along with some of the consequences of these problems.

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