Vacuum Carburizing
In Vacuum Carburizing, repeatable carburizing results according to pre-programmed parameters, Uniform case depth across a load
Optimum, step-by-step process programming procedures separated into carburizing, diffusion and pre-cooling for hardening stages to obtain the required carbon content and hardness profiles depending on steel grade and carburized part geometry
Vacuum Carburizing has the capacity to process mixed parts with various packed densities and materials
Unique carburizing atmosphere, (patent pending), assuring uniform case depth over all surfaces (including hollows and recesses), clean load surface and elimination of by-products including tar and soot (no aromatic rings formation or polymerization)
Elimination of intergranularinternal oxidation (which may occur during gas carburizing and vacuum carburizing in acetylene)
Automatic control of carrier gas flow according to load size and process stage
Vacuum Carburizing records process parameters and heat treatment results
Vacuum Carburizing is the preferred alternative to traditional carburizing methods
Higher process temperatures up to 1980F (1080C) resulting in faster diffusion stages
Flexibility in furnace operation including pre-programmed temperature changes that are required for pre-cooling in hardening or for pearlitization
Automated furnace controls
Bright and clean part surfaces
No carbon monoxide (CO) in effluent gases
Fast start of cold furnace (no conditioning or activation required as is typical for vacuum furnaces); the furnace can be switched off for the weekendLow consumption of carburizing agent, permanent supply is not required
No heat or gas emissions to the surrounding environment; furnaces can be installed inline with other processing machines; no special fire-protection requirements for the working area or building
Compact design requires less shop floor space
Vacuum Carburizing with gas quenching eliminates many of the operational limitations of traditional oil quench systems
Control of cooling rate by changes of gas pressure and blower motor speed
Uniform cooling conditions; minimized and predictable distortion; especially important for new steel grades with improved hardenability where single chamber furnaces or modular systems can be used
Ability to quench HSLA, O2, 52100 and similar steel grades
Clean and dry heat-treated loads; no quench fluid disposal
Simple and safe procedures compared with oil quenching operations
Coimbatore, Tamil Nadu, India
