Mould or die are the common terms used to describe the tool used to produce plastic parts in moulding.
Since moulds have been expensive to manufacture, they were usually only used in mass production where thousands of parts were being produced. Typical moulds are constructed from hardened steel, pre-hardened steel, aluminium, and/or beryllium-copper alloy.:176 The choice of material to build a mould from is primarily one of economics; in general, steel moulds cost more to construct, but their longer lifespan will offset the higher initial cost over a higher number of parts made before wearing out. Pre-hardened steel moulds are less wear-resistant and are used for lower volume requirements or larger components; their typical steel hardness is 38–45 on the Rockwell-C scale. Hardened steel moulds are heat treated after machining; these are by far superior in terms of wear resistance and lifespan. Typical hardness ranges between 50 and 60 Rockwell-C (HRC). Aluminium moulds can cost substantially less, and when designed and machined with modern computerised equipment can be economical for moulding tens or even hundreds of thousands of parts. Beryllium copper is used in areas of the mould that require fast heat removal or areas that see the most shear heat generated.:176 The moulds can be manufactured either by CNC machining or by using electrical discharge machining processes.
- Chrome plating, a process that makes cars stylish
- Six injection molding processing technologies for home appliance plastic products
- Advantages and disadvantages of injection molding vs blow molding
- What is automotive hot stamping and molding technology?
- What is the difference between a hot runner and a cold runner in the mold?
- Automotive stamping die in large, precision and other areas of progress is obvious, the rapid development of plastic and rubber molds
- The top ten problems that are likely to occur in the mold testing process
- How to improve the quality of mold parts?
- List of 6 China injection molding companies
- Top Injection Molding Company - Injection Mold Company China