Thus, the anti-seizure property of the press forming die having the protection film formed by PVD process can be improved.

The vibratory action of the ultrasonic vibrators causes the mold to vibrate in the axial direction so as to prevent the seizure of the cast piece onto the inner surface of the mold.

A problem encountered in a continuous casting operation is that a cast piece seizes to the inside of a casting mold when the cast piece is withdrawn from the mold.

A problem encountered in a continuous casting operation is that a cast piece seizes to the inside surface of a casting mold when the cast piece is withdrawn from the mold.

Thus, the anti-seizure property of the press forming die having the protection film formed by PVD process can be improved.

The references of mold designing, mold processing, mold matching, closing mold, pressing mold and mold assembling are electronic references.

The pair of movable die drive units (31) lower the movable die (22) and bring the movable die close to the fixed die (17), and also lift the movable die (22) and separate the movable die from the fixed die (17).

Thereafter, the mold assembly of the upper mold (6) and the lower mold (7) is closed.

Before the plastic injection mould storage, the mold must be checked to ensure the quality of the mold.

The sacrificial mold then is separated from the master mold.

The depth of die member (D1) is less than that of die member (D2).

Prior to the width of the square mold that makes up the square mold being changed, the metal slab formed in the square mold is drawn out of the square mold and then short-sided mold walls that make up the square mold are moved.

Further steps include removing the pattern from the elastic gel mold, casting a ceramic mold (11) around the gel mold, and liquifying the gel mold to remove it from the ceramic mold (11).

Senior mold designer will recheck the mold drawings after mold structure confirmed and mold design finished.

Further steps include removing the pattern from the metal mold (7), casting a ceramic mold (11) around the metal mold, and liquifying the metal mold to remove it from the ceramic mold (11).