telecommunications RF filter silver plated

Part name
telecommunications RF filter silver plated
Material
43400
weight
6300g
Tolerance standard
ISO 2768-mk
Production equipment
1000T Die Casting Machine
Surface finish
Plating+Spraying
Production place
Guangdong, China
service
OEM
Process route
Die casting-deburring-CNC-Spraying-plating
Application field
Telecommunications, communications

Cavity filter with heat dissipation structure
Material: Aluminum 43400
Surface treatment: silver plating inside cavity, spraying outside cavity
Aluminum alloy has the advantages of low density, high mechanical strength, good shock absorption performance, excellent casting performance, easy electroplating, spraying, good thermal conductivity, corrosion resistance and oxidation resistance, and has always been the first choice for communication filter cavity die casting materials. . With the further improvement of the product’s requirements for corrosion resistance and thermal conductivity, the filter material has been changed from ADC12, ALSI12 to European standard 43400 and widely used. At the initial stage of replacing the 43400 material, the following die-casting defects occurred during the die-casting production process.
①There is a large amount of dense air and shrinkage at the position of the product wall thickness, the resonant rod boss and the end face of the product filling end connector.
②The cooling teeth (height 75-100 mm, small end 1.2mm, draft angle 1.2 degrees) and the cold partition formed by the solitary column in the cavity.
③There are a lot of mold sticking and drawing phenomenon in the product.
④ The product is deformed when ejected, and the flatness is seriously out of tolerance.
⑤The product has defects of inclusion and delamination.
In view of the quality problems in the production after the replacement of materials, our company conducts research and improvement from the aspects of materials, molds, and die-casting processes.。