CHARVÁT AXL, a.s.

Heat treatment

Heat treatment

The heat treatment and chemical heat treatment processes are carried out in a set of shaft furnaces where the parts can be heated in a controlled atmosphere, avoiding decarburization and scaling. The furnaces are controlled (temperature, cementing potential) with the use of an exhaust gas oxygen probe and programmable controllers with a higher-level computer. This system enables the completed heat treatment processes to be comprehensively documented.

Heat treatment testing:

  • hardness test by Brinell (HBW) – ČSN EN ISO 6506-1,
  • hardness test by Vickers (HV) – ČSN EN ISO 6507-1,
  • tensile test by ČSN EN ISO 6892-1 (strength limit, yield point, elongation, reduction),
  • impact bending test by ČSN EN ISO 148-1 (impact value),
  • metallographic analysis of steel and alloy structures.

Limiting parameters:

  • maximum component diameter 600 mm,
  • maximum component length 1200 mm,
  • maximum weight of charge 800 kg (gross),
  • maximum process temperature 980°C.

Annealing

  • normalizing
  • isothermal (BG)
  • stress-relieving
  • soft

Cementing

  • in gas atmosphere

Heat treatment and hardening

  • oil hardening
  • AS 140 salt bath hardening

Isothermal hardening

  • AS 140 salt bath hardening
  • advantage is a higher impact value of treated parts

ADI technology

  • isothermal hardening of ductile cast iron
  • AS 140 salt bath hardening

Low temperature and high temperature tempering

Aluminium alloy curing

Photogallery

Do you have a question?

CHARVÁT AXL, a.s.
3. května 800
513 01 Semily
Czech Republic

ID: 60913959
VAT ID: CZ60913959

Phone No: +420 481 654 316
Fax: +420 481 623 336
E-mail: axl@charvat-axl.cz

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Contacts

CHARVÁT AXL, a.s.
3. května 800
513 01 Semily
Czech Republic

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