What is the role of circuit board (PCB)recycling?

Waste recycling-machine-p.html target='_blank'>Printed Circuit Board (PCB) has to be broken up, separated and sieved through multiple processes of equipment. The waste PCB crushing device is divided into coarse crushing and fine crushing. When the metal and non-metal materials are crushed to a certain fineness, the metal, and non-metal materials are in a state of complete separation and re-concentration and re-separation process, collecting the most precious and rarest species inside and put them back into our lives.

HOW TO RECYCLE Printed Circuit Board

1. PAINT STRIPPING

PCB surface is coated with protective metal, the first step of the recycling process is to first paint. Paint remover has organic paint remover and alkaline paint remover, organic paint remover is toxic, great harm to the human body and the environment, you can use sodium hydroxide, corrosion inhibitor and other heating dissolution.

2. Breaking

After the PCB is removed, it will be broken, broken by impact breaking, crushing and shearing breaking, etc. . More commonly used is the ultra-low temperature freeze crushing technology, can be tough material cooling, Brittle after crushing, so that the metal and non-metal complete dissociation.

3. Sorting

The crushed material needs to be sorted according to the density, particle size, the magnetic and electric conductivity of its components, usually by dry and wet methods. Dry separation includes dry screening, magnetic separation, electrostatic, density and eddy current separation. Wet Separation of hydrocyclone classification, flotation, hydraulic shaking, and so on. The separated material can be reused.