Purpose of the development: Improving the sustainability of molds due to exposure to a thin surface layer in order to increase its resistance to cyclic thermal stress, aggressive environment, corrosion.

Recommended application field: Mechanical Engineering.

Technical characteristic: Work is carried out using an apparatus "Bulat 3T."

Advantages over analogues: Currently, the impact on the working surface of the mold used chemical, chemical and theoretical methods, surface alloying that address specific issues: the weakening of physical and chemical interaction forms and castings, increased durability and a few others that only slightly increased (by 20 30%) of resistant forms. The method that we propose allows to adjust within broad limits, the coating allows to obtain coatings with low thermal conductivity to reduce the temperature gradient created on the surface of compression stress in the surface layer to provide high strength, corrosion and scaling resistance, reliable adhesion with a surface coating layer . The method meets the requirements of the environment.

The development stage readiness: Introduced in production

Technical and economic effect: Achieved through reducing the cost of materials and increase 2.5-3.5 times the life of the molds.

Description of the development:
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The selected method of condensation of matter under bombardment (A / B) allows you to adjust the process temperature (300-800 grad.tsel.). This makes it possible to apply coatings on various materials, which makes this method of strengthening universal among technologies. Based on the study of the conditions of destruction of molds developed a special coating that consists of a binary system nitrides. Methods of mathematical analysis, the optimal parameters applied to the chosen materials. Studies have explain the reasons for improving the stability of molds: 1) reduction in the surface temperature of thermal shock; 2) increasing and excellent corrosion resistance steel; 3) the appearance on the surface layer of compressive stresses (1600-1800 MPa); 4) reduction of the thermal conductivity of the coating system-piece mold, as well as high adhesion; 5) reducing the coefficient of friction. The research allowed: a) to replace the high-alloy steel, which includes tungsten, sparingly; b) to improve corrosion resistance in 2.8-3 times and excellent resistance to 4-fold. Developed a method of manufacturing the coating materials and modes of application depending on the operating conditions of forms.

Information about newness of the development:
there are Ukrainian patents -- 2 items

corresponds technical description
Ready for implementation

Possibility of transfer abroad:
Combinated reduction to industrial level

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua