Moulds are easy to be frayed when they have been used more time. But if we neglect to reparation of moulds, it will bring about a lot of losses.
We can change the damaged components according to the drawing.As for the damaged cavities which have not been quenched, we can repair by adopting copper brazing or partial mosaic. Otherwise, we can mend it by epoxy resin.
For the dermatoglyph surface, we should repair it by adopting special process. For example, we can repair the damaged surface by using plastic sheets of steel materials and then precede partial corrosion.
If the parting surface is not rigorous enough or with much overflow, so we can rubdown the surface and then process the cavity to the original deep.
In general, mould which has been used for a long time, we should examine the fastening degree of the fixed components and positioning cylindrical pin. If necessary, we should fasten them again so as to avoid the position migration of the components. If serious, it will influence the precision and quality of the mould.
After the mould has been used for a long time, we should polish the cavities and cores at regular intervals. It can be beneficial to keep original rough degree and avoid the quality reduction of the mould surface. If possible, we can make the cavity polished and chromed which can help the quality of the mould surface the good result of the overhauling.
The components which cannot be repaired, we’d better renew them.
If we want to keep the moulds in good condition or reduce the time of reparation of moulds, we’d better check it at regular intervals.
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