TECHNOLOGIES FOR PRODUCING DIAMOND-LIKE CARBON COATINGS

PURPOSE:

    • increasing the durability of machine parts and mechanisms;
    • increasing the wear resistance of the geometric dimensions control devices;
    • protection of working surfaces of casting molds and dies, which are used for molding plastic products;
    • restoration of the size of the working surfaces of worn-out precision friction pairs;
    • increasing the biocompatibility of implants used in traumatology and orthopedics, cardiac surgery.

DESCRIPTION:

The technology for producing diamond-like carbon coatings consists of using the method of a pulsed electron-arc discharge in a vacuum and condensation of high-speed carbon plasma flows and is based on the use of pulsed carbon plasma generators with graphite electrodes. The high energies and degree of ionization of the plasma flow ensure good adhesion of the coating applied to the material of the casting molds. The use of diamond-like carbon coatings can improve the performance of casting molds and thereby reduce the percentage of defective products, increase the working life of foundry equipment, and also replace expensive, energy-intensive and environmentally harmful galvanochemical processes that are traditionally used in the application of chromium coatings to protect casting molds.

TECHNICAL CHARACTERISTICS:

Parameters of the process of deposition of films of diamond-like carbon:

    • the average power consumption: 25 kW / h;
    • the maximum size of the sprayed product: 200-200-300 cubic mm;
    • the average load in one process: 6-50 pcs.;
    • cost of one process: 60-100 USD;
    • the duration of those. process: 1.5-3.5 hours;
    • deposition temperature: 30-90 ° C.

Characteristics of diamond-like carbon coatings:

    • thickness: 0.05-5.0 microns
    • microhardness: 30-85 GPa;
    • heat resistance: 350-400 ° C.

TECHNICAL AND ECONOMIC EFFECT:

Increase the service life of products by 1.5-5 times.

ADVANTAGES:

These coatings have unique mechanical, chemical and thermal properties. The combination of a low friction coefficient and high wear resistance makes it possible to multiply the durability of precision friction pairs of machine and mechanism units. Metal implants with diamond-like coatings demonstrate high biocompatibility. Unlike other coatings, they do not cause blood coagulation, serve as an effective barrier preventing the diffusion of metal ions, and can be effectively used for coatings of implants in contact with bone and soft tissues of the body.

RECOMMENDED FIELD OF APPLICATION:

Mechanical engineering, tool industry, medicine.

RESULTS OF THE RESEARCH:

Provides consistent results.

STAGE OF THE DEVELOPMENT READINESS:

Introduced into production.

TRANSFER OPPORTUNITY:

    • Sale of technical documentation.
    • Creation of a joint venture.
    • Sales of finished products.

NOVELTY:

3 patents of other countries.

 

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