Murata Boring Technology Research Co., Ltd.
Description of Business


 - HVOF Spraying(HVAF Spraying)

 - Plasma Spraying

 - Low-Pressure Spraying

 - Wire Spraying

 - Self-Fluxing Alloy Spraying

 - Rokide Spraying


Other Business Operations

 - Laser Carving

 - Ultrasonic & High Voltage Cleaning

 - Grinding and Cutting Operation

 - PTA Power Weld Overlay

 - Engine Recycling


TOP Page > Description of Business > PTA Powder Weld Overlay

PTA Powder Weld Overlay

PTA Powder Weld Overlay

We developed the Plasma Powder Weld Overlay (PTA) system in 1973 and have processed industrial machine main components as well as atomic power plant components which, in particular, require high quality technology for corrosion resistance and thick overlay.
Compared with TIG welding and MIG welding, the depth of fusion into the base material is low. Also, high quality thick overlay with a thickness of 0.8 to 10 mm is available, which demonstrate its ability in the case of corrosion caused by potential differences and corrosion in gaps.

  Features of PTA Powder Weld Overlay  

Powder material and base material become an alloy.
As the depth of fusion is low, the processing is completed with one pass.
Free thickness of overlay from 0.8 to 10 mm

Excellent Corrosion Resistance
Excellent Abrasion Resistance
Excellent Impact Resistance

Excellent Heat Resistance


Applicable Material

Various self-fluxing alloy powder

Sulzer-Meteco, Colmonoy, Fukudalloy, Surfalloy

Intermetallic Compound


Carbide Mix Power

Tungsten carbide, cobalt type

Other powders


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