Purpose and area of application

Multilayer composite coatings on the base of titanium nitride are developed and used in the production of parts of friction units and tooling for forming and machining of metals.

Advantages

The coating consists of reinforced sublayer produced by vacuum techniques on working surfaces of members and multifunction polymeric layer with the properties of alternating mass transfer.

The instrument with multilayer coating is by 3-10 fold wear resistant in comparison with the instrument from special alloyed steel subjected to thermal or chemical-thermal processing.

Technical characteristics

• Thickness, µm...................................................................50-150;
• Number of functional layers.......................................................2-3;
• Microhardness, MPa.......................................................3300-4500;
• Corrosive stability in saline mist under 333 K, not less than....................10;
• Coefficient of friction:
  • without application of lubricant, not more than.......................0,1;
  • with application of oil lubricant, not more than......................0,06;
• Heat stability, K, not less than....................................................723;
• Thermostability, K, not less than.................................................523;
• Wear-resistant of the coating (number of cycles before
  destruction under cold deforming of steel specimens), not less than.......1000.