Continuous Conveyor Hardening

• Neutral Hardening & Tempering
• Carbonitriding
• Shallow Case Carburising
• Austempering
• Carbon Restoration &
  Hardening

Consistency of quality is better obtained when components are continuously quenched, a few pieces at a time instead of in a batch at periodic intervals. Of the total tonnage of heat treated components the majority do not require fixturing and can tumble into a quench tank. The ideal plant for all such components in terms of quality, capital cost as well as operating cost is a continuous conveyorised heating and quenching system. Components spend less time at temperature and consume less energy compared to batch furnaces. Continuous quenching, a few components at a time, ensures a high degree of quality consistency in terms of hardness, case depth and physical properties. Such plants with conveyorised auxiliary equipment for loading, washing and tempering are normally fully automated.

Soft handling, weigh feed, metered loading, vibratory conveyor, reciprocating feeder.

High intensity jet spray, dunk & spray, steam wash, ultra sonic, vapour degreasing & in line centrifuge, drying, continuous dirt filtration, oil seperation/recovery, salt recovery.

Gas tight hardening furnace shell, microporous insulation, atmosphere circulation, alloy belt with raised edges & auto alignment, electric radiant tube heaters, multizone thyristorised temperature control, gas fired recuperative radiant tubes, waste heat recovery from spent atmosphere & by hot belt return, multi atmosphere capability, endogas generator, methanol dissociater, PSA, onsite nitrogen & ammonia cracker.

Oil, hot oil or polymer, clog resistant cascade curtain, variable agitation, continuous dirt removal, air/water heat exchangers, air knife, electric heaters or gas tube burners, temperature, level & flow controls.

High convection (high uniformity) tempering, rapid heat up feature, jet heating system, nitrogen atmosphere capability, steam tempering facility, post temper blackening tank.

computer/touch screen HMI for user interface, SCADA programming based automatic plant and process control, production alarm & energy logging, several reporting formats.

into bins, weigh & discharge, auto bagging with data acquisition.

chiller tank (for 52100 steel parts, where required)