Wear-resistant composite elements.

Wear-resistant composite element (WRCE) is designed for installation by electric or argon-arc welding on parts of machines working in conditions of intensive abrasive wear with moderate impact loads in order to provide high wear resistance for the rubbing surfaces.

Components of the WRCE:                                                                                                          

• Metal shell
• Metallic matrix
• Wear-resistant filler

Metal shell is a profile pipe. The following types of pipes are used: round, square, rectangular, oval and flat-oval.

Metal matrix is composed of NiCrSiB and NiCuMn alloys. The hardness of the metal matrix is 18-58 HRC.

Wear-resistant filler consists of tungsten carbides, including sintered tungsten carbide (Vk3, Vk6, Vk8, Vk10, Vk12, Vk15), grain cast tungsten carbide. The filler may include either a single carbide element or a mixture of them.

The areas of wide application of WRCE include various types of machine parts used in metallurgical, mining, ore-dressing industries. They can also be used in other areas of mechanical engineering where the parts and units of machines are exposed to intensive abrasive wear.