The Technical Ceramics Business of Phoenix Advanced Materials is an Indian leader in the injection moulding of ceramics. With the design and manufacturing expertise, we can support the development of your next generation products from prototype to full volume production. With more than 10 years of experience in ceramic injection moulding, Phoenix has many satisfied customers in mechanical engineering, sensor technology, medical technology, electrical engineering and electronics. An in-house tool shop allows for easy design changes and repairs and also protects the design of our customers in the worldwide competition.

When a ceramic material has been chosen for a specific application, the geometry of the component is often limited by the cost of shaping operations. Ceramic Injection Moulding (CIM) overcomes this issue by forming net shape parts in the tool. Designs previously rejected as too difficult or expensive to manufacture using other production techniques are made commercially feasible.  Features such as undercuts, threads, blind holes, curves and intricate cavities are all possible using CIM technology.

These components offer all the benefits associated with technical ceramics including wear resistance, corrosion resistance, thermal stability, superior hardness, high mechanical strength and dimensional stability.

WHAT IS CERAMIC INJECTION MOLDING (CIM)?

The CIM process starts with very fine ceramic powders. Using sophisticated Sigma mixing machines the powders are compounded with thermoplastic binders to produce a homogeneous pelletized feedstock.

The feedstock is put in the Injection moulding machine. The binders form a liquid medium which carries the ceramic powders into the mould during the injection stage. Using an injection moulding machine similar to that used in conventional plastic moulding, the molten feedstock is forced into a mould cavity forming a net shape part. Moulds can be single or multi-cavity configurations. After forming the part it then goes through two thermal processes. First is pyrolysis to remove the binder, followed by sintering in a high temperature kiln to form a fully dense ceramic component. During sintering the component shrinks uniformly by as much as 33% while retaining the complex shape. With good process control close tolerances can be obtained, therefore machining of the part after sintering is usually not necessary.