What is the Reason for the Surface Damage of the Aluminum Case? How to solve it?

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For most Aluminum Boxmanufacturers, some damage on the surface is a troublesome thing, because the time cost and money cost of re-manufacturing due to surface problems are very high. Next, we will explain the reasons and solutions that cause problems with aluminum casings.

Cause of damage

There are impurities attached to the surface of the ingot or the segregation of the ingot components (the phenomenon of uneven distribution of the constituent elements in the alloy during crystallization is called segregation.)

When there are a large number of segregated floating objects on the surface of the ingot and the ingot has not been homogenized or the effect of the homogenization treatment is not good;

There is a certain amount of hard metal particles in the ingot, when the metal flows through the working belt during the extrusion process;

These segregation floats or hard metal particles adhere to the surface of the working belt or cause damage to the working belt and scratch the surface of the profile.

There is bare metal or hard inclusions in the graphite strip on the discharge track or swing bed, which will scratch the surface of the profile when it contacts with the profile.

There are sundries on the mold cavity or working belt, and the hardness of the working belt of the mold is low, so that the surface of the working belt is injured during extrusion and scratches the profile.

When the fork bar sends the profile from the discharge track to the swing bed, the profile is bruised due to the excessive speed.

Solution

Strengthen the control of ingot quality;

Improve the quality of mold repair, the mold is regularly nitrided and the nitriding process is strictly implemented.

It should be handled with care during production, and try to avoid dragging or flipping the profiles at will.

Use soft felt to isolate the profile from the auxiliary equipment to minimize the contact damage between the profile and the auxiliary equipment.

Especially when manufacturing aluminum shells, we attach great importance to the company's factory strength, you can refer to Our Factory

Conclusion:

When ensuring the surface quality of the aluminum shell, pay more attention to the details in the processing process. If the details and professionalism of each place are at a high level, these problems will not occur.

Finally, YONGU case has been cultivating deeply in this industry for 17 years know how to deal aluminum case problem, if you have other similar problems, welcome to contact us. We will answer your question for free. Our website:https://yongucase.com/