Aluminum Flange

Aluminum Flange is a very common mechanical part used for connection in pipelines, equipment or mechanical parts, mainly made of metal materials. The appearance is basically disc-shaped, with a through hole in the middle, which is used to connect with pipelines or equipment by bolts.

Characteristics and types of aluminum flange

According to different use environments and requirements, flanges have also developed various models and specifications, such as flat welding flanges, butt welding flanges, blind flanges, loose flanges, etc.

Aluminum Flange is widely used in petroleum, chemical, electric power, metallurgy and other industries. Ensure that ductwork flange can operate stably and ensure safety under extreme conditions such as high pressure, high temperature or corrosive media in the pipeline system.

Material selection and processing technology of aluminum flange

Common materials for flanged aluminum pipe include aluminum alloy materials such as 6061 and 7075, which have strong corrosion resistance and good mechanical properties. Aluminum alloy sheets can also be cut into initial shapes according to the size of the flange.

Small batches of die cast aluminum flanges are mostly processed by CNC, while large quantities of flanges can be processed by die casting and stamping, which can greatly reduce processing costs while improving processing efficiency, increase material utilization and reduce waste.

Common problems of Aluminum Flange

Die cast aluminum flange is prone to two major quality defects during processing, namely folding and cracking.

Folding will reduce the load-bearing area of Aluminum Flange, cause stress concentration during use, and lead to abnormal fatigue damage. The main reasons for folding are that the cross-sectional area of the blank is too large, the shape design is unreasonable, the radius of the fillet at the transition of the mold cavity is small, and the artificial reduction during operation.

The crack is caused by the stress of the extruded aluminum material destroying the relationship between the grains inside the material during stamping, which eventually leads to cracking and scrapping of the product.

It may also be that during the production of Aluminum Flange, the internal stress of the material itself is too large, the stress is not eliminated in time, and the heat is uneven during heat treatment, resulting in inconsistent heat deformation of the material, and finally the stress interacts with each other, and the part that reaches the strength limit cracks.

How to control?

First of all, we must confirm that there is no method that guarantees absolute effectiveness under any circumstances, but we can avoid defective products to the greatest extent through production management specifications and process technology upgrades.

1. Analyze the forging equipment, process flow and material selection of Aluminum Flange, and promptly discover and improve unreasonable places;

2. Consider the rationality of mold design, choose the correct filling method, increase the fillet radius at the transition of the mold, and reduce the surface finish inside the mold. These changes will make the material better processed after forming and effectively reduce the defective rate;

3. In order to avoid problems such as internal heating stress of the material, the furnace loading should be strictly controlled, and manual control should be strengthened. The blank can be turned over when the heating time is halfway;

4. Strictly implement the first batch inspection strategy during the production process to ensure that the subsequent production will not be affected by the quality defects of the material itself.

Why choose HY

HY is a die casting flange manufacturer focusing on biopharmaceuticals, petrochemicals, electronic semiconductors and other industries, supporting customization, including materials, model specifications, customization according to drawings, and packaging.

The flange back section is precisely processed, the surface is smoother, and the exquisite craftsmanship is used for multi-layer processing to improve the smoothness and glossiness of the product surface.

100% quality inspection before the product leaves the factory, support three-coordinate measurement service, support third-party inspection and on-site inspection.