Composite boards use different materials in different places, so the standards are also different. Today we will talk about the quality inspection standards of Galvanized Steel Composite Panel .

Galvanized quantity scale value: Measuring the galvanized quantity is a widely adopted method to determine the thickness of the zinc layer of the galvanized sheet. There are two types with the same galvanizing amount on both sides (ie equal thickness galvanizing) and unequal galvanizing amount on both sides (ie differential thickness galvanizing). The unit of the amount of zinc plating is g/m2.

Tensile test: Generally speaking, as long as the galvanized sheet for layout, drawing and deep drawing has tensile performance requirements.

Bending experiment: It is an important item that weighs the technical performance of thin plates. However, all countries in the world have different requirements for various types of galvanized sheets. It is generally required that after the galvanized sheet is bent 180o, the outer coating must not leave the zinc layer, and the board base must not be cracked or broken.

The requirements for the chemical composition of galvanized substrates vary from country to country in the world. The standard of the Signage Aluminum Composite Panel is also different.