Science, Maths & Technology
Rotational moulding (Rotational or rotary casting)
...c. Cu–Be moulds for higher accuracy and surface detail. d. For the best surface detail, electroformed nickel moulds are used. Mould release agents, such as soaps, waxes and baked-on silicone coatings, are used. Moulds are heated using hot air, direct flame or molten salts, or by circulating hot oil through a mould jacket: a. Hot air; slow, accurate temperature control....