« Technical Bulletins

PTA Compressor Rotor

Peter Cameron
23rd April 2009

Introduction

The Sealing Strips on both the Male and Female compressor rotor pictured had worn away completely making the compressor run at lower efficiency.

Process

The Plasma Transferred Arc process offers the advantage of applying a metallurgically bonded overlay at low heat input.

The system employs 6 axes for accurate placement of the overlay and repeatability.

An alloy was chosen to meet the specifications of the parent material.

Perfect placement and shape of the overlay bead was essential in minimizing any damage to the rotor flights and keeping machining costs to a minimum.


6 axes for accurate placement of the overlay

« Technical Bulletins