How to solve the defect of lost mold slag?
Release time:2023-10-16
How to solve the defect of lost mold slag?
In the production of lost die casting, slag defects often occur. Many people may not understand the slag defects, in fact, the most common slag defects is sand, sand will seriously affect the surface finish of the cast, and even cause the scrap of the cast. So, what measures can disappear mold casting manufacturers take to solve the slag defects?
1, mold production. Foam particles should meet the use standards to ensure that there is no dead material; Do a good job of weighing the raw materials of the lost die to ensure the weight of each advance delivery.
2, mold adhesion. The die should be glued with hot melt adhesive and tape to avoid paint penetration in the process of painting, otherwise it is likely to cause casting slag inclusion defects due to paint penetration.
3. Paint. The selection of coatings not only needs to have fire resistance but also needs to have certain permeability. The brush coating of refractory materials should be as uniform as possible to avoid sand clamping defects caused by uneven brush coating.
The above is a method to avoid slag defects from the perspective of mold processing. If the foundry manufacturer wants to avoid disappearing mold slag defects, it needs to do a good job of each process and eliminate human factors resulting in slag defects.
