Heat Treatment Specialist Offers:Liquid Nitriding, Gas Nitriding, Case Hardening, Direct Hardening, Stress Relieving and Blackening Services

Direct Hardening or Neutral Hardening or Volume Hardening

Certain tools and components demand high tensile strength and hardness to be used for heavy duty purposes high tensile strength and hardness values can be obtained by process of hardening.
Hardening Treatment consists of heating to a predetermined temperature, Holding at the temperature followed by rapid cooling. The high Hardness developed by this process is due to the phase transformation accompanying rapid cooling.

The main purpose of hardening is to developed high hardness this enables tool steel to cut other metals .High hardness developed by this process also improves wear resistance. This is the primary aim of the process for components such as – gears, shafts and bearings. Tensile strengths and yield strengths are improved considerably by hardening structure steel. Changing the Metallurgical & Mechanical properties of metals by processes of heating. It is used to harden, soften, or modify other properties of materials that have different structures at different range of temperatures.

The type of transformation depends on the temperature at which the material is heated to, how fast it is heated, how long it is kept heated, what temperature it is first cooled to, and how fast it is cooled. (Hardened and quenched) Followed by a secondary heating stage of a much lower temperature and duration it is held.(Tempering)
Every heat treatable material has specific temperature ranges for hardening and quenching mediums long with tempering temperatures to produce the mechanical properties or hardness's required for the application it has been chosen.

Direct Hardening Process carried out in two furnaces 1) Atmosphere Furnace (GCF) 2) Salt Bath Furnace

Furnace Specification: We have Pit Type Gas Carburizing Furnace (GCF) which is electric fired. This furnace also be used for Direct Hardening for larger items
Name Gas Carburizing Furnace (GCF1) QTY: 1 Nos. Dimension Diameter: 680 mm Length: 1500 mm
Power & Type 80 KW, Electric Fired
Three Zone Automatic Temperature Controlling
Temperature Up to 950 degree Celsius

Furnace Specification: We have two Salt Bath Furnace electric fired for Direct Hardening of Dies,Tools and various other components.
Name Sath Bath Furncae (SB1,SB2) QTY: 2 Nos. Dimension Diameter: 530 mm Length: 560 mm
Power & Type 40 KW, Electric Fired
Three Zone Automatic Temperature Controlling
Temperature Up to 1000 degree Celsius
Tentative delivery time is 3 to 4 days, depend upon lot size and hardness requirement thus vary.

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