Services - seminars We offer seminars on all heat treatment processes in connection with the right choice of steel, tailored to your applications. Home The enterprise The team Procedure Vacuum hardening Gas nitriding Plasma nitriding plant Inert gas heat treatment Services expert advice Seminars Analyzes Quality and environmental policy Events credentials Jobs Contact | imprint HTR Rosenblattl GmbH | 4600 Thalheim near Wels | Am Thalbach 7 | Austria Tel .: +43 7242 206699 | office@htr-rosenblattl.at | www.htr-rosenblattl.at

Process - gas nitriding Nitriding is a thermochemical process at relatively low temperatures (400 - 600 ° C). Nitrogen penetrates (diffuses) into the workpiece surface, combines with the base material and forms the nitride. Once formed, the nitride is hard and does not require a quenching process. Due to the low temperatures and the slow heating or cooling, this is a very low-warpage process. As a rule, components can be nitrided after their completion. Nitriding without dimensional changes is not possible, as the connection zone, which is important for wear protection, grows around 0.01 mm per surface. However, this can be taken into account during soft machining. The surface hardness that can be achieved depends exclusively on the raw material. Alloying elements are nitride formers. for example: C 45 - 400 HV; 1.7225 - 600 HV; 1.8550 over 1000 HV Important: The hardness is measured in Vickers. Hardness testing methods such as Rockwell would push through the nitrided layer. This fact clearly indicates that the wear behavior of nitrided layers is optimal, but the pressure load has its limits. A recurring problem is also the undesirable distortion after the nitriding treatment. The REASON for this: No stress relieving treatment !!!!! Since the nitriding and annealing temperatures are almost identical, machining stresses come out during nitriding. So stress relieving has to be carried out before the workpiece is finished. The nitrogen has very important and positive properties for the process. Unfortunately, it also has an embrittling effect. This can lead to problems (flaking), especially in the edge area. That is why our specialist staff should always obtain specialist advice on material, processes, depths, edge loads, etc. GAS NITRATING Furnace size: Ø 900 x 2000 mm Home The enterprise The team Procedure Vacuum hardening Gas nitriding Plasma nitriding plant Inert gas heat treatment Services expert advice Seminars Analyzes Quality and environmental policy Events credentials Jobs Contact | imprint HTR Rosenblattl GmbH | 4600 Thalheim near Wels | Am Thalbach 7 | Austria Tel .: +43 7242 206699 | office@htr-rosenblattl.at | www.htr-rosenblattl.at