Most of the aluminum tubes on the market are manufactured by the general combined forming and extrusion process, which can not completely avoid weld marks. Especially after oxidation, dark lines are easy to appear. Short round bar, high temperature and slow extrusion process are used in extrusion production, especially the "three temperatures" are controlled to keep the aluminum bar, extrusion cylinder and die clean, and the aging time and temperature can be appropriately adjusted according to the pipe diameter.

In real life, seamless aluminum pipes and slotted aluminum pipes look very similar, and many customers are not sure what the difference is when they buy them. Many informal enterprises sell seamless aluminum pipes to customers. Today, Xiaobian will comprehensively analyze the differences between seamless aluminum tubes and slotted aluminum tubes.

The production methods are different: seamless aluminum pipe adopts perforated extrusion method, and slotted aluminum pipe adopts split die extrusion method. Because of the different extrusion methods, the pressure of seamless aluminum pipe is better and more uniform. There is a slight burning of local chemical composition when welding the slotted aluminum pipe. Because the mechanical properties are lower than those of seamless aluminum pipes.

Different uses. Seamless aluminum tubes are used in fluids, including water stamping, air hydraulic pressure, processed products, polishing applications, etc.

Jointed aluminum pipes are often used for construction supports, such as parts with low requirements and low precision, which generally have more supporting functions, but are not suitable for fluid parts. Therefore, in terms of mechanical properties, seamless aluminum pipe has stronger performance and higher acceptance.

Seamless aluminum pipe has the following characteristics and advantages:

I. Characteristics

Through high-strength hard aluminum, we can study the enhanced heat treatment technology, such as annealing, film quenching, moderate plasticity in hot state, good weldability of spot welding robot, and intergranular cracks tend to form during gas welding and argon arc welding. It can be cut after quenching and cold hardening, and it is not good in the degradation time state. The corrosion resistance is not high, so we can use different anodic oxidation system treatment and painting methods or add aluminum layer on the surface to improve the internal edibility, and at the same time, we can use it as the mold design material ourselves.

Second, the advantages

1. Welding technology: Thin-walled copper-aluminum pipe welding technology suitable for industrialization, known as a global problem, is the core technology of aluminum-to-copper connection pipe of air conditioner.

2. Service life: judging from the inner wall of aluminum, the refrigerant does not contain water, so the inner wall of copper and aluminum connecting pipes has no influence on the social phenomenon of chemical corrosion.

3. Energy saving: the lower the heat transfer efficiency, the better the energy saving effect, or the better the heat insulation effect, the better the energy saving effect.

4. Good bending performance and convenient installation.

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