Heat treatment
In protective atmosphere
- Fundamental processes of heat treatment in methanol atmosphere: simple hardening , bainitic hardening ,sub zero heat treatment, tempering, annealing (in N2 atmosphere)
- Processing equipments are bell type furnaces brand SOLO with electric heating, atmosphere is controlled by oxygen probe
- As a quenching medium is used salt bath AS140, oil or water bath
- Parts is possible to blast by sand or iron after heat treatment
- The maximal charge size is 300 x 300 x 600 mm, the maximal weight is 60 kg
Chemical – heat treatment
- Carried out in the gas (methanol, hydrocarbon, ammonia): carburizing, nitrocarburizing, nitriding, carbonitriding
- Processing equipments ChHT are bell type furnaces brand SOLO with electric heating, atmosphere is controlled by oxygen probe
- The carburizing processes can be simulated according to specified parameters and than automatically manage by computer
- The nitriding is semiautomatically manage according to specified nitriding potential
- Parts is possible to blast by sand or iron after heat treatment
- The maximal charge size is 300 x 300 x 600 mm, the maximal weight is 60 kg
Low pressure carburizing (LPC)
- Carburizing using Finecarb or PreNitLPC methods with subsequent hardening by nitrogen with overpressure 5-15 bar.
- Vacuum furnace brand Systherms and SECO/WARWICK
- processes are simulated in advance in according to specified parameters and than manage by computer
- part surfaces are clean, matt-glossy, not necessary any washing nor sanding (advantageous for complex shape parts and parts with small holes)
- advantageous for all case-hardening steels, other constructional steels is than necessary hardening in classical quenching bath
- The maximal charge measure is 400 x 400 x 600 mm, the maximal weight is 200 kg
Vacuum heat treatment
- simple hardening , sub zero heat treatment, tempering, annealing, vacuum brazing, Cu hardening
- cooling by nitrogen with overpressure 5-15 bar.
- The equipments for vacuum technology are furnaces made by Italian company TAV
- Cryogenic treatment up to -190°C, the technology based on liquid nitrogen
- The maximal charge measure is 500 x 500 x750 mm, the maximal weight is 350 kg