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Dual color injection mold parting surface repair: core technology to ensure dual color bonding accuracy
Date:2025-11-24 13:47     Source:daokedao     Browse:31

After the parting surface of the two-color injection mold wears out, the joint of the two-color material is prone to misalignment and burrs, with a scrap rate of over 20%. Daokedao uses a laser interferometer for positioning to ensure that the flatness error of the repaired parting surface is ≤ 0.003mm/m, and the clearance is controlled between 0.008-0.01mm. It uses Cr-Mo-V alloy powder that is wear-resistant and impact resistant, and the bonding strength of the cladding layer reaches 620MPa. After 100000 mold opening and closing tests, there is no significant wear. The equipment is equipped with a dual color mold special fixture to ensure that the coaxiality error of the dynamic fixed mold is ≤ 0.01mm. After application in a certain automotive interior factory, the scrap rate of dual color products has been reduced to 3%, and the maintenance cycle of the parting surface has been extended from 1 month to 6 months, saving 250000 yuan in annual rework costs.

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