Method for manufacturing molded product

A method for manufacturing a molded product, comprising:

• preparing a mold having a molding cavity and a plurality of gates for injecting molding material into the cavity, wherein the mold has a leakage suppressing portion for suppressing leakage of the molding material to a clearance of the mold, and wherein the gates include gates of the same distances from the leakage suppressing portion;
• preparing, as the molding material, a material the fluidity of which is a spiral flow length of 20 to 70 cm;
• and
• unequalizing the injection pressure of the molding material from the gates of the same distances from the leakage suppression portion, and causing the gate of the higher injection pressure to first start injecting the molding material into the molding cavity.

A method for manufacturing a molded product, comprising:

• preparing a mold having a molding cavity and a plurality of gates for injecting molding material into the cavity, wherein the mold has a leakage suppressing portion for suppressing leakage of the molding material to a clearance of the mold, and wherein the gates include gates of different distances from the leakage suppressing portion and gates of different injection pressure of the molding material;
• preparing, as the molding material, a material the fluidity of which is a spiral flow length of 20 to 70 cm;
• and
• causing, with regard to the gates of the different distances from the leakage suppression portion, the gate that is farther from the leakage suppressing portion to first start injecting the molding material into the molding cavity;
• and
• causing, with regard to the gates of the different injection pressure, the gate of the higher injection pressure to first start injecting the molding material into the molding cavity.