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Mold processing accuracy requirements

2023-08-14

The manufacturing accuracy of the mold size should be in the range of 0.005-0.02mm; the verticality should be in the range of 0.01-0.02mm; the coaxiality should be in the range of 0.01-0.03mm; the upper and lower planes of the moving and fixed mold parting surfaces The parallelism required in the range of 0.01 ~ 0.03mm.

   

After the mold is closed, the gap between the parting surfaces is smaller than the overflow value of the molded plastic. The parallelism of the matching surfaces of the rest of the formwork is required to be within the range of 0.01-0.02mm; the matching accuracy of the fixed part is generally selected within the range of 0.01-0.02mm; if the small core has no requirements for insertion or has little effect on the size, it is preferable to use 0.01-0.02mm on both sides Clearance fit; the fit accuracy of the sliding part generally chooses three types: H7/e6, H7/f7, and H7/g6.

   

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