Adhesion is a method of firmly joining materials of the same or different types using substances with adhesive properties. Substances with adhesive ability are called adhesives, the objects to be bonded are referred to as adherends, and the assembly composed of the adhesive and the adherends is known as an adhesive joint.
Its main advantages include simple operation and high productivity; flexible, fast, and convenient processes; reliable, firm, and aesthetically pleasing joints; simple product structure and processing technology; material and labor savings, low cost, and small deformation. It is easy to realize the repair and reuse of old items. Adhesion technology can be effectively applied to the connection between different types of metals or non-metals, etc.