Superficial Hardening

Case Brief Introduction

Superficial Hardening Solution:

An intermediate frequency heating furnace is a device used to heat metal materials. It usually works through the principle of induction heating. Case hardening is a common process in metal heat treatment that aims to improve the hardness and wear resistance of metal parts.

1. Prepare the Workpiece:Ensure that the metal workpiece to be treated is clean and free from contaminants such as oil, dirt, or other impurities.

2. Select Appropriate Induction Heating Parameters:Adjust the operating parameters of the medium-frequency heating furnace, such as frequency, power, and heating time, to meet the requirements of the surface hardening process. This often depends on the material and geometry of the workpiece.

3. Coat the Workpiece Surface:Before heating, you may apply a special hardening agent or surface modification coating to enhance the hardening effect. This coating can be applied through methods like spraying, dipping, or brushing.

4. Induction Heating: Place the workpiece into the medium-frequency heating furnace and initiate the induction heating process. The electromagnetic induction rapidly heats the surface of the workpiece, creating a deep induction heating layer.

5. Quenching or Cooling: Once the desired temperature is reached, rapidly quench or cool the workpiece. This can be achieved through methods such as water quenching or oil quenching. Rapid cooling helps in forming a hardened surface.

6. Cleaning and Treatment:After the process is complete, clean the workpiece to remove any residues that may remain on the surface. Additional treatments such as annealing or tempering may be necessary to adjust hardness and improve toughness.

7. Quality Inspection: Conduct quality tests, including hardness testing and metallographic examination, to ensure that the surface hardening treatment meets the specified performance requirements.