Wear Studs

Application areas for this cost-cutting technique:

  • Tunneling

  • Quarries

  • Repair-shops for building machines

  • Manufacturers of mining and building machines

  • Deep Mining Industry

  • Open Pit Mines

  • Ore Preparing

  • Steelworks

Saves time by applying in the field
Example of the "Rock-Box" effect


Rock-Box Effect

This is one of the best approaches to fight abrasion. Trapping the abrasive agent in between high wear resistance studs isolates the base metal from direct impact and/or friction. Direct impact occurs on the upper tips of the studs without hitting the base metal. When erosion is involved the studs slow down the motion of the particles thus reducing the erosion effect. The studs are gradually consumed but they can be replaced without the need to replace the base metal. The defining element in determining the usefulness of this approach is the comparison between the restudding repair and the replacement of the whole part. Another aproach is to restud the worn parts with a refurbished one in service - this approach allows cyclical repair of the part without requiring actual replacement. Again the relationship between repair and replacement defines the use of this approach.

 

 

 
Density of studs will vary according to the mechanical requirements.

Special surface enhancements can be done to impart the surface with characteristics to withstand the environment.

 

Diffusion Surface Enhancement

 

Surface is treated to have skin hardness increased or depending on the application to become chemically resistant to the environment.

 

"Skin" and base metal perform as one single material. Chipping or spalling does not occur.

 

 

Main Benefits

  • High Abrasion Resistance
    Components such as excavator-shovels, baffleplates, buckets, hammers etc become
    abrasion resistant thanks to the high Chromium carbide content in the studs.
  • Quick Application On Site
    Studs can be applied on the job site, avoiding disassembling and displacing the equipment.
  • Job interruptions are minimized reducing down time costs.
  • Permanent Protection
    In contrast to wear plates, studs will not pop off, even when shovels or plates buckle.
  • Restudding them is as simple as first time application.
  • Cost Cutting
    In comparison with conventional welding, stud welding takes only a quarter of the
    time for the same surface. Reduction in heat input also contributes to longer life of parts.