0.24 - 2.00mm Thickness Copper Aluminum Connecting Pipes For Air Tightness

High Performance Copper-Aluminum Connecting Pipes for Air Tightness

Detailed explanation of technical standards for copper-aluminum connecting pipes:
1. Quality requirements for welding points:
The welding joints of copper and aluminum connecting pipes must be free of defects such as pores, cracks, slag, burrs and burns. The two metals, copper and aluminum, should be completely fused with no obvious oxide film. In addition, there is no significant reduction in plug holes, especially for Φ6.3 holes, the plug holes should be larger than 3.0mm. Such welding points not only ensure the airtightness of the connecting pipe, but also enhance its mechanical properties.

2. Air tightness requirements:
The air tightness requirements of copper-aluminum connecting pipes are very strict. Under a pressure of 4.0MPa, the connecting pipe needs to withstand a 5-minute test without any leakage. This strict air tightness requirement ensures the sealing performance of the connecting pipe, thereby ensuring the stability and safety of the pipeline system.

3. High voltage test requirements:
After passing the air tightness inspection, the pressure needs to be slowly increased to 13MPa and maintained for 1 minute. During this process, the copper-aluminum connecting pipe cannot have any cracks. This shows that the connecting pipe has excellent high-pressure resistance and can ensure long-term stable operation in high-pressure environments.

4. Bending performance requirements:
The bending performance requirements of copper-aluminum connecting pipes are very high. The specimens were bent into a bend core that was twice the nominal diameter of the pipe and then bent 180 degrees. During this process, the pipe cannot produce wrinkles or cracks. This shows that the connecting pipe has excellent plasticity and toughness and can maintain its shape and structure in various complex environments.

5. Tensile strength requirements:
The tensile strength requirement of copper-aluminum connecting pipe is between 65-118mpa. In the tensile test, the tensile part should be on the side of the aluminum pipe, and the weld seam should be larger than 10mm. This shows that the tensile strength and weld quality of the connecting pipe are strictly controlled, ensuring the stability and durability of the connecting pipe.

6. Sealing performance requirements:
The sealing performance requirements of copper-aluminum connecting pipes are very high. KTG shrinks well, the sealing parts have melted and are completely wrapped in the copper-aluminum joint, and the seal cannot rotate. This sealing performance can ensure the sealing and stability of the connecting pipe in various environments, thereby ensuring the safety and long-term reliability of the pipeline system.

Features:

The copper-aluminum air-conditioning connecting pipe is an innovative air-conditioning connecting pipe that tightly combines a section of copper pipe and a section of aluminum pipe through welding technology to form a composite material with excellent performance. This kind of connecting pipe not only has the advantages of high strength, corrosion resistance, lightness, etc., but also has good thermal conductivity and insulation properties.

First of all, the copper pipe part of the copper-aluminum air-conditioning connecting pipe can be perfectly connected with the brass parts of the internal and external units of the air conditioner, thereby avoiding the risk of electrochemical corrosion between the aluminum pipe and the brass parts. This connection method not only improves the durability and safety of the connecting pipe, but also ensures the normal operation of the air conditioning system.

Secondly, the aluminum pipe part of the copper-aluminum air conditioning connecting pipe can reduce the weight and cost of the connecting pipe. Aluminum is a lightweight, high-strength metal material with low density, good thermal conductivity, and easy processing and shaping, so it can effectively reduce the weight and cost of connecting pipes. At the same time, aluminum is also a renewable metal material that will not cause resource shortages or environmental damage, and meets the requirements of sustainable development.

Finally, the copper-aluminum air conditioning connecting pipe as a whole is more insulating than pure aluminum pipes. Since copper and aluminum have different thermal conductivities and thermal expansion coefficients, their combination can form an excellent thermal insulation layer. This kind of insulation layer can effectively maintain the temperature inside the connecting pipe, reduce the loss of refrigerant during the transportation process, and improve the cooling and heating efficiency of the air conditioner.

To sum up, the copper-aluminum air conditioning connecting pipe is a composite material with excellent properties. It not only has the advantages of high strength, corrosion resistance, lightness, etc., but also has good thermal conductivity and insulation properties. The application of this kind of connecting pipe can not only improve the performance and efficiency of the air conditioning system, but also reduce costs and environmental impact. It is a very promising air conditioning connecting pipe material.

Applications:

evaporimeter

condensator

dehumidifier

Cold dry machine

warm air blower

etc.

Techical Parameters:

physical characteristics and composition

1. The bimetallic composite pipe has a tensile strength of 150–160 MPa, an elongation of 35–40%, and a pressure resistance of at least 15 MPa.

2, copper-clad aluminum tube for the integration of materials; copper and aluminum cannot be separated, as with bending, flaring, and softness in copper pipe.

3. The pipe's section has a copper to aluminum weight ratio of 60:40, the same specifications as the original copper pipe, and the same outer diameter and wall thickness.

Air conditioning connection pipe

(Technical requirements refer to national standards or customer technical quality requirements for production)

FAQ.:

Q1: aluminum alloy pipe compared with copper pipe, advantages and disadvantages?

A1: Aluminum pipe cost low ductility, but easy to corrosion. Copper pipes have good thermal conductivity and corrosion resistance, but the installation, preservation and transportation are not easy and the cost is high.

Q2: What should be noted in the installation of the air conditioning connection pipe?

A2: The alloy pipe is easy to install, but the link of copper and aluminum after a long time of chemical changes, will cause electrocouple corrosion.

Q3: How to deal with the corrosion problem?

A3: Our products use special corrosion resistant alloy, and the corrosion resistance effect is greatly improved compared with ordinary aluminum alloy. The corrosion resistance experiment is> 1000 hours, which greatly improves the service life of the product.

Q 4: What state and performance of aluminum pipe and aluminum alloy pipe can be produced?

A 4: It can produce performance products from hard state to soft state and interval.