Perlite annealing
Targeted adjustment of a pearlitic microstructure to significantly improve machinability. Especially for high-carbon steels, this allows us to reduce microstructural inhomogeneities and optimally prepare the material for machining.
Optimal machinability through controlled transformation
We precisely control the thermal transformation process to achieve a uniform pearlite microstructure. This ensures consistent, easily predictable cutting forces in your mechanical manufacturing, prevents tool breakage, and significantly extends the service life of your milling cutters and turning tools.
Perlite annealing
Annealing of castings after initial shaping at temperatures suitable for the formation of pearlite, in order to obtain a ferritic-pearlitic microstructure with as fine a grain structure as possible and good toughness properties. This is usually followed immediately by stress relieving heat treatment.
Heat Treatment & Temperatures
- Operating temperatures up to 1050 °C (up to 1070 °C for short periods)
- Unrestricted operation throughout the entire lower temperature range
quality assurance (QA)
quality assurance (QA) At our company, a team of in-house certified inspectors handles this process, utilizing a wide range of non-destructive and destructive testing methods, precise 3D measurement, and complete batch traceability. This ensures that every component meets our quality standards and complies with applicable regulations.
For a comprehensive and audit-ready Documentation Handled by our own team. All materials, components, and filler metals remain traceable; all documentation is stored in an audit-proof manner and prepared in accordance with standards and individual customer requirements.
Any questions? We’re here to help you personally.
At WOLF Behälter- und Apparatebau, you and your projects are our top priority. You can always count on our consistently high product quality and our comprehensive service.
Volker Ermert
Werksleiter/Leiter Wärmebehandlung
Interesting facts about perlite annealing
For which types of steel is this process particularly suitable in equipment manufacturing, and how does it specifically differ from normal annealing? Here you’ll find well-founded technical answers.
What information do you need to prepare a specific quote? + − Component dimensions (max. length, width, height), component weight, desired heat treatment type (stress relieving heat treatment, normalizing, or other processes), desired surface treatment or cooling strategy, required process documentation, and, if applicable, standards (e.g., DIN/EN standards).
Component dimensions (max. length, width, height), component weight, desired heat treatment type (stress relieving heat treatment, normalizing, or other processes), desired surface treatment or cooling strategy, required process documentation, and, if applicable, standards (e.g., DIN/EN standards).
What specific characteristics or factors of your facility affect the quality of the heat treatment? + − Very high operating temperatures and controlled cooling rates support the required mechanical properties and stress relief. Large cooling tanks (polymer quenching tanks) and a variety of cooling methods allow for customized process adjustments depending on the material and component.
Very high operating temperatures and controlled cooling rates support the required mechanical properties and stress relief. Large cooling tanks (polymer quenching tanks) and a variety of cooling methods allow for customized process adjustments depending on the material and component.
What advantages does your system offer specifically for heavy-duty welded structures? + − Performing stress relieving heat treatment or normalizing, as well as other specialized heat treatment processes. The large dimensions of the working area and high weight capacity enable the treatment of large and heavy components.
Performing stress relieving heat treatment or normalizing, as well as other specialized heat treatment processes. The large dimensions of the working area and high weight capacity enable the treatment of large and heavy components.
What types of bridge or process solutions do you offer in addition to heat treatment? + − Professional stress relieving heat treatment or normalizing, as well as other specialized heat treatment processes for optimizing heavy-duty welded structures. Goal: To relieve stresses and ensure the longevity of the components.
Professional stress relieving heat treatment or normalizing, as well as other specialized heat treatment processes for optimizing heavy-duty welded structures. Goal: To relieve stresses and ensure the longevity of the components.