摘要:
A die for press-molding glass optical elements which can press-mold glass optical elements having high melting points and various shapes repeatedly, which includes a base material (13) having high strength on which a cutting layer (12) having heat resistance and free cutting machinability is formed. After cutting the cutting layer (12) into the desired shape with high accuracy, the die is coated with a surface protective film (11). The cutting layer (12) is formed by an amorphous film or an alloy film containing one of P,B,Cu or Si. The surface protective layer (11) is formed by an alloy film comprising at least one of Pt,Pd,Ir,Rh, Os,Ru,Re,W,Ta. The cutting layer (12) can be formed by plating, evaporation, sputtering or ion plating the said film on the base material (13).
摘要:
A die for press-molding glass optical elements which can press-mold glass optical elements having high melting points and various shapes repeatedly, which includes a base material (13) having high strength on which a cutting layer (12) having heat resistance and free cutting machinability is formed. After cutting the cutting layer (12) into the desired shape with high accuracy, the die is coated with a surface protective film (11). The cutting layer (12) is formed by an amorphous film or an alloy film containing one of P,B,Cu or Si. The surface protective layer (11) is formed by an alloy film comprising at least one of Pt,Pd,Ir,Rh, Os,Ru,Re,W,Ta. The cutting layer (12) can be formed by plating, evaporation, sputtering or ion plating the said film on the base material (13).