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两个人免费完整版在线观看HD,午夜福利视频Dalian caseberg equipment manufacturing co. LTD

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What welding method is used for aluminum alloy pipeline

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What welding method is used for aluminum alloy pipeline

Date of release:2019-08-14 Author: Click:

两个人免费完整版在线观看HD,午夜福利视频Aluminum alloy pipeline, connected to the mixing and tow-pump all-in-one machine pipeline, usually 2~3 people cooperation device higher power. When installing the pipeline, it should first check whether the pipeline is made of the residual concrete from the previous construction and whether it is cleaned in place. Otherwise, the concrete will simply be blocked when it is transported. It is also important to have an accurate receiving sequence, or the concrete mixer will simply cause the pipe to crack from the joint during pumping.


When connecting aluminum and aluminum alloy pipelines by welding, manual gas welding or manual argon arc welding is usually adopted. Before welding, apply acetone or carbon tetrachloride solvent to remove oil stains attached to the pipe end and welding joint, and then remove the oxide film carefully with a fine copper wire brush in the area 30-60mm away from the groove. The welding should start within 2h after cleaning to avoid reoxidation of the pipe mouth. In the process of pipe welding, the workpiece is strictly prohibited from vibration. When the pipe needs to be rotated in the welding process, it shall wait for the weld metal to cool down to below 350C before it is allowed to rotate gently.


Aluminum alloy pipeline, aluminum alloy due to light weight, high strength, good corrosion resistance, non-magnetic, good formability and low temperature performance and other characteristics are widely used in a variety of welding structure products, aluminum alloy instead of steel plate material welding, structural weight can be reduced by more than 50%. Therefore, aluminum and aluminum alloy in addition to a wide range of applications in aviation, aerospace and electrical fields, but also more and more applications in the petrochemical industry.


两个人免费完整版在线观看HD,午夜福利视频China's die casting industry from the production power, die casting machine quality and production skills and other inductive level, compared with the advanced countries are still appropriate backward, but, in terms of the number and practitioners of China has a certain advantage; In addition, the capacity of the die-casting mall is relatively large, and the development speed in recent years is very fast, which also provides a possibility for China to get close to and catch up with the world's advanced level. Extrusion alloy aluminum tube and profile, the production process of heating - extrusion - finishing casting is adopted. For aluminum alloy which can be strengthened by heat treatment, quenching and aging treatment should be carried out.


两个人免费完整版在线观看HD,午夜福利视频Aluminum alloy pipe and building profile are produced by in-line air cooling quenching and finishing after extrusion. Thin-wall tubes are produced by extrusion first and then cold processing. For hard alloy small diameter tubes, the second extrusion method is often used to produce small size tubes and then cold processing. The inner surface of galvanized steel tube is bright and clean. Small pressure loss of compressed air, energy saving. Galvanized steel pipe is beautiful and simple. Aluminum alloy is easy to install and quick to plug. Installation costs are low. Aluminum alloy is easy to disassemble, move and modify. The price of aluminum alloy pipe and joint is higher than that of galvanized pipe. Aluminum alloy steel tube can not be used as a water pipe, because the aluminum tube is less rigid than galvanized pipe, but very flexible.


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