The aluminum pcb sheet is a common used metal substrate material for PCB circuit board drill entry use. The metal substrate for PCB is made of 0.3mm-2.0mm thick metal plate, such as aluminum substrate, iron substrate, copper substrate, epoxy resin prepreg and copper foil, which are thermally composited and pressed. PCB aluminum sheet generally adopts aluminum alloy sheet, such as 1100 aluminum sheet, 5052 aluminum sheet, etc. Aluminium PCB sheet has good thermal conductivity, electrical insulation performance and mechanical processing performance, which can meet the requirements of later processing.
1100 H18 aluminum pcb sheet for PCB drilling entry is a key product of Haomei Aluminum. 1100 aluminum is industrial pure aluminum, the aluminum content (mass fraction) is 99.00%, and it cannot be strengthened by heat treatment. It has high corrosion resistance, electrical conductivity and thermal conductivity, low density and good plasticity. It can produce various aluminum materials through pressure processing, but its strength is low. Other process properties are basically the same as 1050 aluminum. 1100 aluminum sheet is usually used to require good forming performance, high corrosion resistance, and does not require high strength, such as food and chemical handling and storage equipment, sheet metal products, hollow hardware processed by drawing and spinning, welding combination keys , reflectors, nameplates, etc.
Performance advantages of aluminum pcb sheet:
1, Good mechanical properties:
Aluminum drilling entry sheet substrates have good mechanical strength and toughness. Solve the brittleness problem of the circuit board of the inorganic material substrate. It is suitable for large-area patch processing, and can also withstand the installation of heavy components. In addition, the dimensional stability and flatness of the metal substrate are its great advantages.
2, Good heat dissipation performance:
Since the aluminium pcb sheet and the prepreg are in direct contact, they both have excellent heat dissipation performance. When using a metal substrate for SMT processing, it can dissipate the heat generated during SMT processing very well. The heat dissipation capacity of the circuit board depends on the thickness of the metal substrate and the thickness of the resin layer.
3, Can shield electromagnetic waves:
In high-frequency circuits, designers focus on preventing electromagnetic wave radiation. Aluminum pcb sheet can form a natural protective layer to achieve the purpose of shielding electromagnetic waves.