Network optimisation information.
Plastic moulds include thermoplastic moulds and thermosetting plastic moulds. Steel for moulding has certain strength, hardness, wear resistance, thermal stability, corrosion resistance and other properties. In addition, heat treatment deformation is small, good processing performance, corrosion resistance, good grinding performance, good welding performance, high roughness, good thermal conductivity, situation size and shape stability and other good processability. Injection moulding or extrusion moulds can choose hot work of mould steel of thermosetting molding and high wear resistance, high strength moulds can choose cold work mould steel.
According to the conditions of use of the mould, the mould steel is divided into 4 kinds, the metal association tool steel committee listed cold work of the mould steel, hot work of the mould steel, plastic mould steel, plastic mould steel 4 kinds. The cold-worked mould steels are further divided into 12 types, the hot-worked mould steels into 9 types, the plastic mould steels into 2 types and the plastic mould steels into 5 types.
The choice of each material depends on three main factors.
complexity of size and shape.
the raw material to be processed.
The requirements for long-term use or design life.
