IDEA #78C1FG Nanodiamonds In Energy And Resource Preserving Technologies

THE SCIENCE AND TECHNOLOGY CENTER IN UKRAINE NANODIAMONDS IN ENERGY AND RESOURCE PRESERVING TECHNOLOGIES Description SINTA Ltd. has developed and is the patent holder of a production technology for nanodiamonds (ultra dispersive diamonds, UltraDiamonds, UDD) and some applied tech(cid:28) nologies – production of protector and restoration addi(cid:28) tives for lubricants and composite chrome and gold plat(cid:28) ing. The perspective of these technologies sees in large application opportunities for the nanodiamonds in various fields such as: – mechanical engineering, – manufacturing of tools (including new class of dia(cid:28) mond tools), – production of grinding powders and pastes for super finishing of materials, – production of semiconductors, – production of lubricants, etc. NANODIAMOND CHROMIUM ELECTROPLAT% INGS The composite electroplating on the basis of chromium with NanoDiamonds are intended for hardening of details and instruments, increase of tear and wear resistant, pro(cid:28) tective and antifriction properties of the surface.Basic technological characteristics of the technology of nanodia(cid:28) mond chromium plating Microhardness of the plating, HV, kg/mm: 1200–1400 Recommended plating width on the working detail sur(cid:28) face, Micron: 5–20 Increase of the service life of the details with plating (increase of deterioration resistance of friction cluster details and instrument stability): 2–15 times Increase of adhesion to the base, % : by 30–40 Catalyst charging, G/L: 7–10 1kg of catalyst provides the total plating area (if the plat(cid:28) ing width is 5 micron), thousand m2: 2,5(cid:28)3,0 NANODIAMOND PLATING EXAMPLES Example A: Forming Mandrel for Stainless Steel TubesThe customer (Nikopol Stainless Steel Tubes Factory) manufactures specialty stainless steel pipes for the nuclear and chemical industries. The process involves using a chrome plated 350 mm long mandrel being forced through smaller diameter stainless steel tubes to expand the diameter and decrease the wall thickness. The pipes are 10 meters in lengths. The mandrel plating was modified to substitute a nanodiamond chromium plating for the previ(cid:28) ous chrome plating. Effectiveness: The lifetime of the man(cid:28) drels with the nanodiamond chromium plating is 4–5 times that of those with only chrome plating. 14 Fig. 1. Nanodiamond platings Example B: Cable Forming DiesThe customer (Uzhcable Factory) uses steel profiling dies as part of the process for producing large diameter cables. An alternative design was fabricated from a less expensive steel alloy. The profile areas (working surface) of the dies were selectively plated with a nanodiamond chromium plating 15 microns thick. Effectiveness: The operational lifetime of the plated dies is 3.5 to 4.0 times the original design. Innovative Aspect and Main Advantages The technology nanodiamond chromium plating deriving is carried out on traditional equipment with minimum changes of production process of chromium(cid:28)plating and provides material and electrical power saving at the expense of working width of plating decrease and current efficiency and productivity of galvanic lines increase, spe(cid:28) cific volume of metal waste per unit of plating area decrease. Areas of Application Nanodiamond chromium plating are a reliable way of improvement of the quality and competitiveness of cutting and manufacturing tools, press and punching tools, details of friction clusters (bearings, rods of hydrocylinders, pis(cid:28) ton rings, plungers etc.), medical equipment and other details and goods. Stage of Development Already on the market, commercialized in Ukraine Contact Details SINTA Ltd 62404 Kharkiv, p/b Kulinichi Vulytsya 7 Gvardeyskoy Armiji, 3, office 143 Contact person: Ruslan Tsyganok Tel. + 38 (057) 740 37 88 Fax +38 (057) 740 33 95 E(cid:28)Mail: mail@sinta.kharkov.ua Website: www.nanodiamond.com.ua SCIENCE AND INNOVATION. Special Issue, 2007