Aluminum plate refers to aluminum material with thickness of more than 0.2mm to less than 500mm, width of more than 200mm and length of less than 16m as aluminum plate or aluminum sheet, aluminum material with width of less than 0.2mm and row material or strip material with width of less than 200mm (of course, with the progress of large equipment, there are more aluminum plates with width of up to 600mm).

Aluminum plate refers to the rectangular plate formed by rolling aluminum ingot, which is divided into pure aluminum plate, alloy aluminum plate, thin aluminum plate, medium thick aluminum plate and patterned aluminum plate.

Aluminum al: surplus; Silicon Si: 0.25; Copper Cu: 0.10; Magnesium mg: 2.2 ~ 2.8; Zinc Zn: 0.10; Manganese Mn: 0.10; Cr: 0.15 ～ 0.35; Iron Fe: 0.40.

Tensile strength（ σ b ） ：170～305MPa

Conditional yield strength σ 0.2 (MPa)≥65

Elastic modulus (E): 69.3 ～ 70.7gpa

Annealing temperature: 345 ℃.

The specific cleaning steps of aluminum plate are as follows:

1. Wash the board surface with plenty of clean water;

2. Gently wipe the surface of the test board with a soft cloth soaked in the detergent diluted with water;

3. Wash the board surface with plenty of clean water to wash away the dirt;

4. Check the board surface, and use detergent to clean the places that are not cleaned;

5. Wash the board surface with clean water until all the detergent is washed away.

Note: do not clean the hot board surface (when the temperature exceeds 40 ° C), because the rapid evaporation of water is harmful to the baking varnish on the board surface!

In particular, please choose the right detergent. A basic principle is: neutral detergent must be selected! Please do not use strong alkaline detergents such as potassium hydroxide, sodium hydroxide or sodium carbonate, strong acidic detergents, abrasive detergents and paint dissolving detergents.