Aluminum accessories purchase carefully be pitted

In the machinery industry, we always use accessories, and accessories have different materials, such as aluminum profiles. Aluminum profiles are a wide range of objects. Aluminium profiles are processed through relevant chemical treatments, electroplating, titanium plating, etc., and then processed. Therefore, we can see that it has strong practicability, good results, and simple operation. Then, the next small series for everyone to introduce aluminum accessories purchase.

Aluminum accessories purchase

First, in the initial stage of processing, the aluminum profile fittings are required to undergo the casting process of the raw material metal aluminum. During the purchase, you can observe the side and corner parts of the accessories. It is often difficult to see the problem from the surface, and these parts are the areas where the problem is most likely to be exposed. Observe whether the metal contains impurities. The purity is not high, and the parts are easily broken during use.

Second, after the casting, it is the extrusion of the primary product. In this process, the requirements for the mold are very high, and the production accuracy must be consistent with the target requirements. Otherwise, the proportion of extruded aluminum fittings is likely to be misaligned, and it is very likely that it cannot be installed on the equipment, and the irregularity of the edge portion is easier. Injury to the user.

Third, after the extrusion molding is the treatment of the surface oxide film. Because metal aluminum itself is easily corroded by being exposed to the air, an oxide film is only to be plated. This process is very expensive, and the processing cost increases as the thickness of the oxide film increases. Many black-heart manufacturers will reduce the thickness of the surface oxide film to reduce the cost, but it is easy to make the aluminum fittings easily corroded during use.

Aluminum accessories

1, bolts and nuts

The bolt is a kind of mechanical part. It consists of a head and a screw. It is used to fasten the nut and cooperate with the nut. It connects two parts with holes and can be dismantled and connected. The current market price is based on different models. The bolts for aluminum are between 0.5 and 0.6 yuan each.

2, corner pieces

The commonly used corner pieces are mostly right-angle pieces and steering angle pieces. The right angle piece is composed of long aluminum pieces which are perpendicular to each other on both sides and can be used to make a frame structure. The steering angle piece is also used to fasten two parts.

3, dedicated connector

Dedicated connectors include corner slot connectors, spacer blocks, and the like.

Corrosion resistance of aluminum profiles

1. Surface pretreatment: Chemical or physical methods are used to clean the surface of the profile, exposing a pure matrix to facilitate obtaining a complete and dense artificial oxide film. It is also possible to obtain a specular or matt (matte) surface by mechanical means.

2. Anodizing: After surface pretreatment of the profiles, under certain process conditions, anodization occurs on the surface of the substrate to form a dense, porous, strong AL203 film layer.

3. Sealing: The pores of the porous oxide film formed after the anodization are closed, so that the oxide film can be prevented from pollution, corrosion and abrasion resistance. Oxide film is colorless and transparent. By using the strong adsorption of the oxide film before sealing, some metal salts are adsorbed and deposited in the film pores, which can make the appearance of the profile besides the colors (silver white), such as: black, bronze, Gold and stainless steel and so on.

Editor's summary: About the aluminum accessories purchase is introduced here, I hope to be helpful to everyone. If you want to know more related information, you can pay attention to this website information.

Sliding door aluminum profiles