Guide

When the aluminum profile is pressurized, if there is air left in the aluminum profile, it will cause air bubbles inside and on the surface of the aluminum profile, making the aluminum profile become waste. Therefore, in order to prevent air from entering the aluminum profile, it is necessary to find out why the air is brought in. The following small series introduces the main methods of residual air inside the four extruded aluminum profiles. The hot shearing of the long rod leads to the residue of air. The shear plane formed when the rod is thermally sheared is absolutely not perfect and vertical. The simple thermal shearing of long Read more

The industrial aluminum profile is corrosion-resistant, has a beautiful surface, and has a wide range of applications. The surface of the aluminum profile is a natural silvery white, which is very beautiful. However, there are also some industrial aluminum profiles that will turn black and dark on the surface, which greatly affects the aesthetics of the equipment. Today we will analyze the reasons for the blackening of the surface of industrial aluminum profiles. Material problem. Some industrial aluminum profiles turn black and dark as soon as they are bought. This should be a material problem. The iron content in the aluminum alloy exceeds the standard, and some are smelted with Read more

Chemical polishing is an important method of polishing the surface of aluminum profiles. Chemical polishing is a method of eliminating wear marks and etching and leveling by the selective dissolution of chemical reagents on the uneven area of ​​the sample surface. What are the main factors that affect the chemical polishing effect of aluminum profiles? The purity of aluminum profile aluminum is too low. When the purity of aluminum in the aluminum profile is too low, it is not suitable for chemical polishing, and it is changed to nickel plating or chrome plating under possible conditions. There is dirt on the surface of the aluminum profile. Before the aluminum-aluminum profile Read more

Surface polishing of aluminum profiles is an important process in the processing of aluminum profiles, which can improve the durability and aesthetics of aluminum profile products, thereby enhancing the value and attractiveness of aluminum profile products. The following are the main categories of aluminum profile polishing processes and brief descriptions introduce. 1.Mechanical Polishing Mechanical polishing can produce a wide variety of surface finishes and textures, whether it’s a rough surface, a patterned matte look, or a classic mirror-gloss finish. Mechanical polishing can be achieved by various methods such as polishing, sanding, sandblasting, grinding or tumbling. If anodizing is required for aluminum extrusions, it must first be mechanically polished. This allows Read more

Whether it is pure aluminum or aluminum products have a feature, that is, corrosion resistance. Due to this great advantage, it is widely used in many fields. Today we will discuss the reasons for the corrosion resistance of aluminum products. The chemical symbol for aluminum is AL, and it is a very active metal that ranks third on the periodic table of metals. It can easily react with oxygen in the air to form AL2O3 alumina. And aluminum oxide does not have obvious color like other metal oxides, it is colorless and transparent, and has no effect on the color of aluminum itself. More importantly, it can wrap the entire Read more

What are the causes of surface defects, dull color and rough surface of aluminum profiles? It can be mainly divided into two reasons. One is that the raw material aluminum ingots used are impure, and the profiles are extruded from aluminum rods doped with scrap aluminum. The second is caused by improper operation in the production process. The specific reasons are as follows: The raw materials used are doped with scrap aluminum Uneven ratio of raw materials in the production process During the production process, the acid content of the bath liquid is too high, and the acid corrosion causes the surface to be rough If the copper content in Read more