Hardening Technology

Transcription

1 Hardening Technology Vacuum heat treatment

2 successful customers are our success Hardening technology carries out the following heat treatment techniques: Stress relieving Quenching and tempering Hardening Tempering Precipitation hardening Soft annealing Normalizing Structural heat treatment Vapour tempering Subzero cooling To the fore at Tool steels Cold-work steels Hot-work steels Plastic mould steels High-speed steels Powder-metallurgical steels Corrosion-resistant steels Nitriding steels Case-hardening steels Heat-treated steels are high-quality steels: Vacuum hardening technology Counterbore batch 2

3 Stages of Development In 1972 started with salt bathes especially to heat treat precision tools. In 1979, expanded with vacuum hardening equipment, which has been optimized steadily ever since. With 32 vacuum hardening and vacuum tempering furnaces in their three vacuum centers in Nürnberg, Albershausen and Schmölln, ranks among the leading service providers in this sector. Tools (DIN ) In 2003, in the course of the technological development with their partner company, replaced their classic salt bath hardening line with an ultramodern automatic bell-type heat-treatment furnace with salt bath quenching. always offers its customers the latest in forward looking technologies. Vacuum-treated components Aluminium mould insert (DIN ) 3

4 Vacuum Hardening Technology uses this process for heat treating medium- to high-alloy tool and high-speed steels in conventional and powdermetallurgical production. While the bases for excellent technology properties are already provided in the steel plants optimizes High-precision tools and High-quality components The results of Minimum distortion and Maximum effi ciency in use heat treatment are: Comprehensive quality control ensures that the above results are stringently maintained and provides stimulus for the on-going improvement of our processes. Vacuum hardening equipment Large vacuum furnace through individual heat treatment customized to the specific case and the contour of the tool or component. Batch example Injection mould (DIN / approx. 1 t.) Paring wheels Cutting tool (DIN1.2379) time-temperature-process sketch for heat treatment of hot-work steels 4 5

5 Special Treatment Processes We offer our customers the following special treatment processes: Cutting tools (vacuum heat treatment) Induction hardening of cylindrical parts (Ø 5-10 mm x 200 mm) with automatic continuous run (larger parts on request) Partial tempering by induction Special batches for sophisticated shapes Subzero cooling processes Special heat treatment for tools and components, which are PVD-coated, eroded, photoetched or are subject to further heat treatment such as nitriding Oxidation of tools in our vacuum furnaces Cutting tool (DIN ) Microstructure of ledeburitic chromium steels Conventional method 100 μm (DIN ) Injection mould Powder-metallurgical 10 μm method VANADIS 4 EXTRA 6

6 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: Following tests can be effected at our own stateof-the-art laboratories: Material analysis Microstructure analysis Damage analysis Nht-readings CHD-readings Hardness testing acc. to Rockwell HRC acc. to Vickers HV acc. to Brinell HB Crack detection with die penetration with flux Hardness testing Delivery notes should always indicate whether heat treatment suitable for PVD-coating or eroding is required. This will enable us to ensure optimum heat treatment for your tools. Lab analysis Our pick-up-service 7

7 HIGH-TECH KNOW-HOW in application systems Hardening technology Nitriding technology Coating technology Vacuum hardening Plasma-nitriding PVD/PACVD coating Induction hardening Gas-nitriding High-performace coating systems Controlled atmosphere Oxidizing Tribological coating systems hardening in gas UniTwin - combination systems in plasma Improx -oxidizing 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) photography & design: namedia.de VP P 02