Technical Reference for Maintenance and Cleaning of Alloy Aluminum Plate

I. Maintenance:

Choosing better quality aluminum alloy plate is a required course for consumers, but consumers also need to know about the maintenance and repair of aluminum alloy plate to ensure its service life and beauty.

1. It is strictly forbidden to transport aluminum alloy profiles in bulk during shipment, otherwise it may cause bumps and scratches during subsequent transportation.

2. When the surface of aluminum alloy profile is corroded or polluted, it shall be cleaned in time. You can wipe it with a soft cloth dipped in alcohol and then rinse it with water.

4. Warm water containing lubricant or neutral detergent should be used for cleaning, and acidic or alkaline cleaning agents are strictly prohibited for cleaning aluminum alloy plates.

5. Soft cloth and towel are suitable for scrubbing aluminum alloy plates. It is forbidden to wipe the surface of aluminum alloy plate with corundum powder, sandpaper, wire brush and other strong friction items.

6. After the aluminum alloy profile is cleaned, choose a good topcoat wax to polish the aluminum alloy plate, and spray a uniform layer of acrylic resin-based varnish.

7. Aluminum alloy plates should be cleaned regularly according to the use environment.

Second, the cleaning work:

The surface of alloy aluminum plate needs to be cleaned and protected regularly.

The cleaning cycle mainly depends on the environmental conditions of the project site and the actual pollution degree of the board surface. Our suggestion is that the external walls should be cleaned less once a year, and the indoor walls should be cleaned according to the actual pollution level.

The cleaning of building walls may be carried out from top to bottom by hand or proper cleaning equipment. Do not use any abrasive objects to wipe the painted surface.

The specific cleaning process of aluminum plate is as follows:

1. First, clean the surface of the board with plenty of clean water;

2. Gently wipe the board with a soft cloth dipped in water diluted detergent;

3. Then wash the board with plenty of water to wash away the dirt;

4. Check the board surface. If it is not cleaned, focus on cleaning with detergent;

5. Wash the surface of the circuit board with clear water until every detergent is washed off.

Note: Do not clean the surface of the hot plate (when the temperature is higher than 40°C), because the rapid evaporation of water is harmful to the paint on the surface of the plate!

Special attention should be paid to choosing a suitable cleaner when cleaning aluminum alloy plates. A basic principle is: Be sure to choose neutral detergent! Please do not use strong alkaline cleaners, such as potassium hydroxide, sodium hydroxide or sodium carbonate, strong acid cleaners, abrasive cleaners and paint baking soluble cleaners.

Understand the classification of vibration mark defects:

Horizontal printing is actually a vibration mark defect. Vibration mark is a kind of surface defect caused by periodic disturbance of production in elastic material system of metal production. This disturbance is a characteristic frequency vibration. Various forms of vibration may occur in the rolling process of medium-thick alloy aluminum plate, and their causes and characteristics are also different. According to the different load transfer systems, the vibration phenomena on the rolling mill can be divided into two categories: one is the torsional vibration of the main drive system of the rolling mill; The second kind is the vibration and vertical vibration of the vertical system of the rolling mill.

The vertical vibration of the rolling mill has a constant frequency and vibrates up and down along the roll. According to different rolling speeds, the spacing of vibration marks will also change. It is generally caused by equipment, such as self-excited vibration caused by accumulator, back pressure, valve gain and other factors that suppress the system. In addition, the vibration of the whole rolling mill caused by the uneven distribution of lubrication, tension and reduction will also produce different vibration marks at different rolling speeds, which can be eliminated by changing the speed and tension.

The traces of torsional vibration produced by alloy aluminum plate can be divided into three categories: first, the torsional vibration of transmission system, whose frequency is proportional to the number of roll revolutions, and is not affected by rolling speed, and the spacing is certain, such as the influence of transmission system; Secondly, the rotating vibration around the roller shaft is not affected by the rolling speed, and the spacing is certain, such as the rotating jump of the coiler, the rotating jump of the front flattening roller, the rotating vibration of the supporting roller and the bearing box of the work roller, etc. The third is defect transfer. The roller itself has horizontal printing defects that are symmetrical up and down, such as zero-time stamping and symmetrical vibration during grinding. The frequency of these defects is also proportional to the number of revolutions of the roller, which is not affected by the rolling speed and has some spacing.

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