HIGH-TECH KNOW-HOW in its best shape. hardening technology - nitriding technology - coating technology. Tribological Technology

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1 HIGH-TECH KNOW-HOW in its best shape.

2 successful customers are our success. Performance tribological coatings: hard and smooth Tribology is the science and technology of each other influencing surfaces in relative movement. It contains the complete area of friction and wear Truck engine (MAN) MZ 1000 Sport Highly stressed components in the automotive industry as well as in the common mechanical engineering are more and more reaching their limits. In order to increase the productivity and life time of precision tools, PVD and PACVD-coatings are already being used with success. resistance including lubrication (according to DIN 50323). Favourable tribological characteristics like low dry friction and high wear resistance are offered especially by the metalliferous hydrocarbon coatings (TT - WCC ) and the amorphous carbon coatings (TT - DLC). For manufacturing of tribological coat- ings is using the most modern, up- to-date PVD/PACVD-plants. HIGH-TECH KNOW-HOW in application system

3 Overview of Coatings By using Tribo-coatings the surface characteristics can be improved to the point without influencing the basic material. The coating temperature is approx. 180 C. The tribological coatings as well as the PVD/PACVD processes are environmentally friendly. Applications Engine components fuel injection systems/diesel/fuel injection pumps valve drive crank drive pistons and double action cylinders Motor racing frames/drive chains/engines Advantages / no or lesser lubrication consumption/dry systems/saving of fuel consumption/more simple construction / substitution of components/lightweight construction/most extreme capacitance of components coatings therefore offer a great potential to make highly stressed components even more efficient. Bearing elements roller bearings/friction bearings/ball bearings/ spirals protection against shortage of lubrication/ dry systems/ Drive elements 2 μm toothed wheels/shafts/axles/chains/spirals / higher torques for smaller components Surface layer: a-c:h Machine tools Metall-containing hydrocarbon coating bearings/slides/shafts/defl ection pulleys less maintenance/ Transition layer zone Adhesion layer REM image of TT - DLC - coating Coating system Colour Production method * Measured with pin-on-disc tribometer (DIN 50324) test parameter: non-lubricated, T= 23 ± 1 C, r.f = 50 ± 5 % (steel against steel: μ = ) Micro hardness (HV 0.05) Coefficient of friction on steel * against 100Cr 6 TT - HTA black arc-process 3, TT - WCC black-grey magnetron sputtering 1, TT - DLC black-grey PACVD 2,000-3,500 < 0.15 TT - C DLC black-grey magnetron sputtering 2,400-4,000 < 0.15 TT - Cr 2 N silver magnetron sputtering 2, TT - TiB 2 light grey magnetron sputtering 3, MoS- glide black-grey magnetron sputtering 300 < 0.05 General mechanical engineering compressors/superchargers/pumps/ valves/fi ttings Plastic material die casting machines cores/ejectors/slides Textile machines Printing machines pneumatic valves Food industry bearings/dosage pistons/guide elements Medical technology scissors/pliers/bone drills use of environmentally friendly media/ improved ejectability/ improved sliding/ optimization of the fl ow process of the molding material abrasion protection non-lubricated production sterility/corrosion prevention

4 Application Examples Service Performances We guarantee your success - not only through our daily achievements in hardening and surface technology, but also through our wide range of services. Pump tappets Cap tappets Valves Bolts/pins Needle bearing bolts Piston pins Piston rings Bearing components/ roller bearings QSQuality assurance on highest level -coatings are HIGH-TECH KNOW-KNOW HIGH-TECH KNOW-HOW in application system

5 HIGH-TECH KNOW-HOW in its best shape. Hardening technology Nitriding technology Coating technology Vacuum hardening Plasma-nitriding PVD/PACVD coating Induction hardening Gas-nitriding High-performace coating systems Controlled atmosphere hardening Oxidizing in gas UniTwin in plasma Improx -oxidizing coating systems - combination systems Service Laboratory (analyses, sample tests) Consulting (materials, layouts) Pick-up service (with own fl eet) H-O-T Vertriebs- und Logistik-Center GmbH & Co. KG Nürnberg Kleinreuther Weg 118 phone: +49(0) Fax: +49(0) hot-nuernberg@hot-online.de Our centers in Germany Nürnberg (4 x) Schmölln-Nitzschka Werl Albershausen Buttenheim Memmingerberg Our center in Turkey Bursa UniCut = Trade Mark of Fraisa (Switzerland) Improx / UniDur / UniNox / UniPlus / UniTwin / TT / WCC / Calida = Trade Marks of H-O-T Härte- und Oberfl ächentechnik GmbH & Co. KG (Germany) ( EB PP 03) Photographie & Graphik: namedia.de