Casting Study: Antenna LNB/Feedhorn Assembly

Major Selection Criteria: Good Finish, Mechanical Properties, Net Shape
Alloy: ZA-12 (ZA12, ZL1110, ZnAI11Cu1)
Application Field: Communications
Application Size: Housing - 2 in. x 5-5/8 in.
Surface Finish: Painted
Casting Technique: Gravity Casting
Source: Cash Mould and Casting Ltd.

antenna LNB die castingFeedhorn incorporates six graphite permanent mould castings including the end cap, housing (which holds the circuit boards), feedhorn, cover (used for shielding) and two mounting probes. ZA-12 alloy provides the components with the necessary strength to withstand the drilling of more than 50 holes, many of them threaded. The cast components exhibit high hardness and strength, good wear resistance and dimensional stability. After assembly, the castings are finished with an epoxy coating for a corrosion resistant, aesthetic and durable finish. Permanent moulding provides an economical short-to-medium run manufacturing process.