Dalian caseberg equipment manufacturing co. LTD
Marketing center: dalian Shahekou District changxing street 137-139 fuhung international tower B 2301
Mail box: email@example.com
Negotiation hotline: +86-0411-62278511
Contact number: +86-18018919688
Company website: WWW dlcosbog.com
Kesberg fluid technology (qingdao) co.LTD
Marketing center:137 Yanqing Road, Huanxiu office, Jimo District, Qingdao
Aluminum alloy pipeline, in many high-strength aluminum alloy contains copper. By quenching and aging treatment, the dispersion distribution of small particles in the alloy precipitated, and significantly improve its strength, known as aging hardening aluminum alloy. Among them, dura aluminum, or dura, is a kind of aluminum alloy containing copper, manganese and magnesium, which is an important structural material for aircraft and rockets. The small inner diameter and wall thickness of the soft-aluminum alloy tube can be taken as the lower limit of the above range, while the upper limit of the durum-aluminum alloy tube can be taken as the upper limit. In addition, when the outer diameter of the aluminum alloy tube is larger, the small wall thickness of the aluminum alloy tube is usually not less than 5% of the outer diameter of the aluminum alloy tube.
Aluminum and aluminum alloy tube extrusion are easy to occur aluminum phenomenon, often locally adhere to the tools and cause a variety of defects in the inner and outer surface of the tube. Therefore, in addition to the use of process lubrication during extrusion, the tool surface smoothness and surface hardness are required to be higher, all the surface contact with the pipe should meet the requirements of the process. Perforated extrusion can be used under proper technological conditions. In the process of perforated extrusion, the inner surface of the commonly used extrusion cylinder (non-lubricated extrusion) and the surface of the perforated needle are adhered with a complete metal cover, which should be kept clean and complete in order to produce high-quality tubing.
Otherwise, the quality of the inner and outer surface of the pipe will be deteriorated, resulting in defects such as air bubbles, peeling and abrasion. Aluminum and aluminum alloy tubes are not suitable for peeling and extruding. The main reason is that the exuded shell is damaged and difficult to remove. When extruding aluminum and aluminum alloy tubes, in addition to pure aluminum can not control the extrusion speed, other alloy tubes have their own appropriate extrusion speed, production must be strictly controlled, therefore, should choose adjustable speed extruder. The stability of the alloy against electrochemical corrosion is reduced because of the inhomogeneity of the chemical composition and the unbalance excess phase caused by the solid solution intracrystalline segregation.
Ultrasonic welding technology can realize the connection of magnesium alloy, aluminum alloy and other low-melting materials that are difficult to be welded by traditional welding methods. This paper will detail the study of 6061 aluminum alloy after ultrasonic welding joint microstructure, surface morphology and mechanical properties, and get the better process parameters of 6061 aluminum alloy ultrasonic welding, aluminum alloy surface treatment and analysis of the influence of the welding performance, in order to promote the ultrasonic welding of this advanced connection technology applied in lightweight alloy connection.
The metal pipeline itself is overweight, so the construction cost is high, and the traditional buckle connection is also a rigid connection, so if there is a slight earthquake or other problems, it is easy to appear security risks, causing the rupture of the pipeline. Because the traditional metal pipe is the metal itself and water contact, there are a large number of ions in the water, so a long time use easy to corrode the metal pipe. It will not only cause the quality and service life of pipe bearing capacity and other problems, but also cause safety risks to the sanitary level of drinking water.