How to use vacuum oil quenching heat treatment furnace correctly

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First, after the amount of oil in the vacuum oil quenching furnace is lowered to the oil tank in the standard basket, the distance between the oil surface and its direct surface should be at least 100 mm,
If the distance is less than 100 mm, the temperature of the oil surface will be relatively high, which may cause the explosion of the vacuum furnace.

Second, nitrogen must be introduced before the oil is discharged in the vacuum oil quenching furnace, but air cannot be introduced. Many manufacturers do not pass nitrogen in order to save costs.

In addition, it is best to pass nitrogen before the workpiece is released, otherwise it will easily cause the explosion of the vacuum furnace equipment.

Third, the temperature of the workpiece exceeds the limit when the oil is discharged. At this time, the vacuum quenching oil will vaporize, and once it enters the air or oxygen, it will explode.

Fourth, aside from the heat treatment equipment itself, the quality of vacuum quenching oil itself can also cause explosion accidents, such as quenching oil with low flash point and low ignition point.

Fifth, the size and shape of the workpiece itself quenched in the vacuum oil quenching furnace are also one of the reasons for the explosion.

Therefore, everyone should pay attention to prevent accidents caused by these reasons. First, regular inspection and maintenance of equipment are required.

To detect and supplement the oil in the vacuum furnace in time, it is best to have a fixed supplier of vacuum quenching oil,

Because oil from multiple manufacturers is prone to accidents. Secondly, when the quenching size is large, thick and irregular in shape, it is easy to bring out a large amount of quenching oil products.

Special attention is required; finally, clean up the environment around the workshop to avoid flammable and explosive objects and gas from being distributed around the vacuum furnace.

learn more : vacuum oil quenching heat treatment furnace