WE’RE FIRED UP FOR YOUR QUALITY PRODUCT.

Carburizing, quenching + tempering, annealing, tempering

During carburizing, carbon is released at high temperatures through the addition of gases. The carbon diffuses into the components, where it is bound through the case-hardening process. This results in a higher surface hardness.

Quenching + tempering merely heats the component, which changes the structure but does not harden it. The aim is to improve the machinability.

Annealing (above 500°C) or tempering (approx. 170°C) reduces stresses in the microstructure of the component. Annealing can also be used to reduce the hardness.

We have 37 pit furnaces available for our heat treatment processes.
 

Quenching

We offer two quenching processes:

While polymer quenching offers a higher core hardness due to the more rapid cooling, the associated distortion behaviour is higher.

While Oil quenching provides a more gentle cooling, that comes along, with a lower level of distortion. This is where the large darting flames occur. Both processes offer a very exactly adjustable case-hardening depth.
 

Blast Cleaning

Deposits produced during the heat treatment process are removed by blast cleaning. 0.3 mm steel balls are used in the blasting process.

The quality of the beam is controlled visually, using optical enlargement if necessary. A check is also performed to make sure that no remaining blasting material remains in the cavities (such as drillings).

We operate two redundant blasting machines to avoid delivery delays.