Vacuum unit

The sandblasting process of a vacuum unit refers to the natural drying and sandblasting of wax molds at a set room temperature,without affecting the shape changes of the internal wax molds.Let's learn about the sandblasting process of vacuum units.

After the vacuum unit sand is naturally sprayed and dried,industrial glue is added to the surface of the wax mold,and two layers of sand are sprayed,which are larger and rougher than the previous sand.After the vacuum pump unit sprays two layers of sand,the wax mold naturally dries at the set constant temperature.After natural air drying is completed,secondary sandblasting is carried out in the vacuum unit,followed by three sandblasting,four sandblasting,five sandblasting and other processes.Adjust the sandblasting frequency based on the surface requirements of the product,including volume and weight.The general sandblasting frequency is 3-7 times,with different sizes of sand particles for each sandblasting.Usually,the sand in the subsequent process is thicker than that in the previous process,and the drying time is also different.Generally speaking,the complete sand production cycle for wax molds is about 3-4 days.

The natural air drying time for vacuum unit sandblasting depends on the internal complexity of the product,and the air drying time for castings is generally around 5-8 hours.During sandblasting,special attention must be paid to the relevant operating procedures.In order to better ensure the quality and service life of our products,we cannot be ignorant.We need to accumulate more experience and skills.

The above introduction is about the vacuum unit sandblasting technology.You can choose the appropriate method according to your actual operating requirements to avoid unnecessary losses caused by blind operation.