Processes

 

CARBURISING

Carburising takes place in single chamber furnaces using a gas with a special chemical composition that ensures the surface enrichment of carbon. After the actual case hardening, the pieces are quenched and then tempered to give the surface the necessary hardness and wear resistance and to give the core adequate toughness and fatigue resistance. INTRA carries out this process with lines of fully automated furnaces capable of operating unsupervised 7 days a week 365 days a year, with innovative systems for the constant monitoring of the process. This ensures extreme precision in checking all the movements of the components within the plant but, above all, in controlling the carburising atmosphere in the treatment chamber with absolute precision.

PLANT CAPACITY: Automated lines of single chamber furnaces with dimensions of 1200 x 750 x 910 mm and 1200 x 750 x760mm with a relative capacity of 1300 kg.

 

 

VACUUM HARDENING

Vacuum hardening is a form of treatment that takes place in chamber furnaces at a set pressure (10 to -3 Bar) on steels for tool steels, die steels and various components with subsequent reheating up to 1250°. The process can be subdivided into the following phases: vacuum treatment, initial convection reheating, continuation of the vacuum heating until the transformation temperature is reached and subsequent cooling with insufflation of nitrogen until a pressure from 2 to 10 bar. This is done according to the material and the technical specifications required of the product. This process is used by the world’s leading steel plants, offering exceptional advantages for any type of component. This process therefore makes it possible obtain clearly defined structures with homogeneous and repeatable mechanical resistance values. Vacuum hardening guarantees a high level of cleanliness, restricted deformation of products, the absence of decarburisation, a highly uniform chamber and precise temperatures which ensure that the process if environmentally friendly.

PLANT CAPACITY: Pit furnaces with dimensions of 950 x 1600 mm and capacities of up to 3000 kg. Single chamber furnaces with dimensions of 1200 x 750 x 760 mm and capacities of up to 1300 kg.

 

 

VACUUM HARDENING

Vacuum hardening is a form of treatment that takes place in chamber furnaces at a set pressure (10 to -3 Bar) on steels for tool steels, die steels and various components with subsequent reheating up to 1250°. The process can be subdivided into the following phases: vacuum treatment, initial convection reheating, continuation of the vacuum heating until the transformation temperature is reached and subsequent cooling with insufflation of nitrogen until a pressure from 2 to 10 bar. This is done according to the material and the technical specifications required of the product. This process is used by the world’s leading steel plants, offering exceptional advantages for any type of component. This process therefore makes it possible obtain clearly defined structures with homogeneous and repeatable mechanical resistance values. Vacuum hardening guarantees a high level of cleanliness, restricted deformation of products, the absence of decarburisation, a highly uniform chamber and precise temperatures which ensure that the process if environmentally friendly.

PLANT CAPACITY: Horizontal furnaces with dimensions of 900 x 600 x 600 mm and 1200 x 900 x 800 mm with capacities of up to 1500 kg.