How to prevent the aluminum coil from being scratched

When placing the aluminum alloy produced by the aluminum coil, it is best to use a soft felt to separate the aluminum alloy from the auxiliary equipment, which can reduce the scars caused by the conflict between the two. We also need to pay attention when transporting, pay attention to handle it with care, and do not drag the aluminum plate on the ground at will.

The first possible factor is that there are debris attached to the surface of the ingot or the segregation of the ingot composition. These will all be the factors that the aluminum plate will show the damage. Of course, if it is distinguished from a major aspect, this should be counted as a production problem. The same should be regarded as a production problem, as well as in the discharge track or the swing bed. If there are some small debris on this, then after we put the aluminum plate on it, it will cause certain damage to the surface of the aluminum plate. Having said that the damage that may occur in the production process, let's come back to see what the damage caused by human beings will be.

When we use the fork bar to send the profile from the discharge track to the swing bed, we must pay attention to it, because many people have caused the profile to be damaged to a certain extent because of this speed. The second Gusu aluminum plate reminds us to pay attention, that is, when we take the aluminum plate on the swing bed, we must pay attention, do not drag it hard, it will also cause damage to the surface of the aluminum plate. In the end, there are factors that may cause damage, that is, in the process of transportation. This is also the most likely situation for aluminum plate damage. We must pay attention to this.

Why are the same grades of aluminum coils different in softness and hardness?

Many customers ask why the hardness of the products of different aluminum coil manufacturers of the same brand is different?

First of all, the thickness of the aluminum coil is also different, and the degree of softness and hardness is different. For example, the 0.2mm thermal insulation aluminum coil has different "quality" and weight from the 0.5mm thermal insulation aluminum coil, and the price of the aluminum coil is also different.

Determining the degree of softness and hardness of the thermal insulation aluminum coil is the state of the aluminum coil plate, and the commonly used thermal insulation aluminum coil state is the H state:

The H1, H2 and H3 status codes are followed by an Arabic numeral to indicate the degree of work hardening.

The number 8 represents the tensile strength obtained after full annealing, about 75% cold deformation (processing temperature does not exceed 50°C).

The O state and the state between the numbers 8 are represented by numbers 1-7, respectively. Among them, when the tensile strength of the aluminum coil is the intermediate value of the O state and the HX8 state, it is represented by the number 4 (HX4); when the tensile strength is the intermediate value of the O state and the HX4 state, it is represented by the number 2 (HX2); When the tensile strength is the intermediate value of the HX4 state and the HX8 state, it is represented by the number 6 (HX6). When the small tensile strength exceeds the HX8 state by at least 10 MPa, it is indicated by the number 9 (HX9). When the number connected after the HX code is an odd number, it means that the strength of the thermal insulation aluminum coil is the arithmetic mean of two adjacent even-numbered states.

When some metals cannot reach the tensile strength of HX8 state by cold deformation (fully annealed and 75% cold deformation), about 55% cold deformation can be used to determine the HX6 temper or about 35% cold deformation can be used to determine the HX4 temper.