Deep freezing
After heat treatment, depending on the material used, an unstable phase—usually undesirable—remains in the workpiece: residual austenite.
The targeted transformation of this phase through a combination of conventional heat treatment techniques and deep freezing is often the most technically and economically sound method for achieving the desired material properties and preventing microstructural changes during use.
Hardening Through Controlled Cooling
Our state-of-the-art freezing system allows us to implement controlled temperature profiles.
The controlled cooling of the steel after hardening to a temperature of -70°C to -150°C results in the transformation of the residual austenite into martensite, which is responsible for the steel’s hardness. This makes the component exceptionally hard and dimensionally stable, ensuring it remains unchanged during use. This process is state-of-the-art control system at HTR. The turnaround time for the entire treatment process is hardly affected by the holding time of approximately one hour.
KEY FIGURES: Deep-Freezing
Temperature:
up to –150°C
System Size
1,200 x 900 x 900 mm
Max. Load Weight*
1,500 kg
*per batch for standard sizes and treatments
We look forward to hearing from you!
Please use our contact form or contact our sales team directly.
Silvio Stranek
Sales, Technical Consulting / Quotes (Upper Austria, Tyrol, Salzburg, Vorarlberg, Bavaria, South Tyrol)
Email. s.stranek@htr.at
Phone: +43 (0) 664 / 88 92 78 10
Thomas Stadlober
Sales, Technical Consulting / Quotes (Styria, Vienna, Lower Austria, Carinthia, Slovenia)
Email. t.stadlober@htr.at
Phone: +43 (0) 664 / 88 64 15 06
Our CORE COMPETENCIES
As one of the leading hardening companies,we are your reliable partner for industrial heat treatment. For over 25 years we have been hardening steel and other metals using state-of-the-art processes – dimension-stable, wear-resistant, and reproducible. Whether individual parts or series production: we combine expertise, state-of-the-art equipment, and process controlto achieve the highest hardness quality and warp resistance .
48-hour service
Thanks to our unique organizational structure and customer-focused flexibility, we have been delivering top-quality hardened parts in record time for over 25 years.
Quality assurance
With a state-of-the-art control system, we keep an eye on all important parameters at all times and ensure that only flawless products are delivered.
Pick-up and delivery service
As part of our worry-free service package, our company-owned transport fleet enables daily pickups and deliveries in the central region of Upper Austria.
Knowledge transfer
In customized seminars, you will learn which combination of materials and hardening processes can reduce the costs of your project while achieving optimal component properties.
OTHER PROCEDURES
Hardening
Hardening is a heat treatment process used to increase the hardness and strength of metals, such as steel. Most materials consist of different crystal lattice structures, each with distinct properties. Hardening is a process in which these structures are altered to achieve the desired properties.
Nitriding
Nitriding is a thermochemical process in which nitrogen diffuses into the surface of a metal workpiece to improve its mechanical and physical properties. The process is typically carried out at elevated temperatures in a nitrogen-rich atmosphere.
