Injection Moulding
Ceramic cores are manufactured by medium pressure injection moulding. This gives an extremely dimensionally accurate and consistent product. CIC material shrinkage can be fine tuned to suit customers’ existing tools. CIC can offer a full tooling package and engineering support. The medium pressure process combined with CIC’s unique binder system results in very low tool wear rates – lifetimes of 50,000 to 100,000 for hardened steel tools are normal depending on geometry.CIC has a range of press sizes suitable for cores ranging from a few grams to over 10 kg.
Dimensional Control
CIC’s core bodies are exceptionally stable and high tolerances can be maintained with minimal split lines, less dressing and flash. CIC’s process can produce features that are not achievable with other methods, examples include Trailing Edge thicknesses of 0.35 mm and an M5 thread profile that does not need machining.For the most complex cores prone to distortion during firing, reforming techniques and/or core setter technology can be utilised.
Firing
CIC’s kiln firings are operated with sophisticated cycle controllers; firing cycles are monitored by chart recorders as well as Buller’s rings in every kiln load.