How to solve flash burrs in mold injection molding?
Published Time:
2026-04-28
If flash burrs appear in mold injection molding, the following measures can be taken to solve the problem: first check the mold. If the mold closing is not tight and there is a gap on the parting surface, the mold needs to be grinded to ensure that the parting surface fits closely and the worn parts are repaired;
If flash burrs appear in mold injection molding, the following measures can be taken to solve the problem: first check the mold. If the mold closing is not tight and there is a gap on the parting surface, the mold needs to be grinded to ensure that the parting surface fits closely and the worn parts are repaired; adjust the injection molding process to reduce the injection pressure and speed to avoid overfilling of molten material; control the melt temperature. If it is too high, the fluidity will be enhanced and prone to flash, so it should be reduced appropriately; check the clamping force, if it is insufficient, increase the clamping force; in addition, clean the mold regularly to prevent foreign matter from affecting the mold closing. The comprehensive use of these methods can effectively reduce or even eliminate flash burrs and improve the quality of injection molded products.
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