Common Heat Treatment Processes for Tungsten Carbide Bushings:

Here are the following steps of heat treatment for tungsten carbide bushings:

1. Normalizing: The steel material or component is heated to an appropriate temperature above the critical point AC3 or ACM, held for a certain period, and then cooled in air to obtain a pearlitic structure through this heat treatment process.
2. Annealing: The hypoeutectoid steel workpiece is heated to a temperature 20-40 degrees above AC3, held for a period, and then slowly cooled in the furnace (or cooled by being buried in sand or lime) to below 500 degrees before being cooled in air.
3. Solution Heat Treatment: The alloy is heated to a high-temperature single-phase region and held at a constant temperature to fully dissolve the excess phases into the solid solution, followed by rapid cooling to obtain a supersaturated solid solution.
4. Aging: After solution heat treatment or cold plastic deformation, the properties of the alloy change over time when stored at room temperature or slightly above room temperature.
5. Solution Treatment: For Tungsten Carbide Bushings, this treatment fully dissolves various phases in the alloy, strengthening the solid solution, improving toughness and corrosion resistance, and eliminating stress and softening for subsequent processing and forming.
6. Aging Treatment: Tungsten Carbide Bushings are heated to the temperature where the strengthening phases precipitate and held to allow the precipitation of these phases, thereby hardening and increasing the material’s strength.
7. Quenching: The steel is heated to the austenitic state and then cooled at an appropriate rate to cause a transformation to unstable structures such as martensite within the entire cross-section or specific regions of the workpiece.

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