Vacuum Heat Treating Services

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vacuum heat treating services includes tempering, quenching, aging, solution heat treatment, annealing, normalizing.

1.Normalizing: The steel or steel is heated to a suitable temperature above the critical point Ac3 or above for a certain period of time and then cooled in the air to obtain a heat treatment process of the pearlite-like structure.

2. Annealing: heating the hypoeutectoid steel workpiece to 30-50 degrees above Ac3, after heat preservation for a period of time, heat treatment with air cooling in the furnace (or buried in sand or lime) to 500 degrees below air cooling.

3. Solution heat treatment: the alloy is heated to a high temperature single-phase zone constant temperature maintenance, so that the excess phase is sufficiently dissolved at a rapid rate to obtain a heat treatment process of the supersaturated solid solution.

4. Aging: The phenomenon that the properties of a alloy change with time after being subjected to solution heat treatment or cold plastic deformation at room temperature or slightly above room temperature.

5. Solution treatment: fully dissolve various phases in the alloy, strengthen the solid solution and improve toughness and corrosion resistance, eliminate stress and soften, and continue processing.

6. Aging treatment: heating and holding at the temperature of the strengthening phase, allowing the strengthening phase to precipitate and harden, improving strength.

7. Quenching: heat treatment process in which the steel is austenitized and cooled at an appropriate cooling rate to cause the workpiece to be decomposed into the solid solution in all or a certain range of the cross section, and then the unstable microstructure structure such as fast martensite is transformed.

8. Tempering: heating the quenched workpiece to a suitable temperature below the critical point Ac1 for a certain period of time, followed by cooling in a satisfactory manner to obtain the desired microstructure and properties of the heat treatment process.

Vacuum heat treatment is a new heat treatment technology that combines vacuum technology with heat treatment technology. The vacuum environment of vacuum heat treatment refers to the atmosphere environment under one atmosphere pressure, including low vacuum, medium vacuum, high vacuum and ultra-high vacuum. Actually, vacuum heat treatment also belongs to the atmosphere control heat treatment. Vacuum heat treatment refers to all and part of the heat treatment process in the vacuum state, heat treatment quality greatly improved. Compared with the conventional heat treatment, the vacuum heat treatment can achieve no oxidation, no decarburization and no carburization at the same time, remove the phosphorous dust on the surface of workpiece, and have functions of degreasing and degassing, so as to achieve the effect of surface brightness and purification.

SIMUWU owns its own Vacuum furnace factory, whose purpose is to develop and produce world-class leading Vacuum furnace equipment. SIMUWU Vacuum also provides Vacuum Heat Treating Services, contact us.

Tag: heat treatment, vacuum heat treatment, Tempering, Quenching, Aging, Solution heat treatment, Annealing, Normalizing