• A335 P11
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  • A335 P91
  • A333 Gr.6
  • Brazing Weld

    STE provides prefabrication and assembly of all kinds of pressure pipes, such as copper, brass and copper nickel alloy, to domestic and foreign customers.ASME/ASTM, PED, JIS, DIN, GB/TS and other standards can be adopted for pipeline materials and construction requirements.STE has complete ability to complete all the processes required for pipeline operation such as material purchasing, cutting processing, machining, assembly, welding and factory precision assembly.STE has certified 5S, 6S welders...

     

    Copper Brazing Weld-What is it ?

    Copper pipe is a seamless copper pipe made of copper by pressing and drawing. It has the characteristics of light weight, good thermal conductivity and high strength at low temperature.Copper pipes are also very solid and corrosion resistant.In addition, copper pipe is easy to bend and twist, but not easy to crack and break.


     

    Copper Brazing Weld and Assmbly

    STE provides prefabrication and assembly of all kinds of pressure pipes, such as copper, brass and copper nickel alloy, to domestic and foreign customers.ASME/ASTM, PED, JIS, DIN, GB/TS and other standards can be adopted for pipeline materials and construction requirements.STE has complete ability to complete all the processes required for pipeline operation such as material purchasing, cutting processing, machining, assembly, welding and factory precision assembly.STE has certified 5S, 6S welders and silver and copper brazing by ASME,PED and GB, and is good at prefabrication and installation of complicated international standard copper pipes.
     

    Our Strength

    Be familiar with various international standards (European standard, American standard, Japanese standard, national standard, etc.) and understand relevant quality standards accurately.
    Strong global purchasing ability to provide customers with standard materials;
    Independent copper pipe welding workshop, special platform, welding machine, sandblasting equipment and tools;
    Provide all kinds of project documents and completion materials.
     

    Working Technology Process

     

    Project Case

    Client:Five Celes
    Electromagnetic induction heater component production project
    Materials: brass, copper, aluminum alloy, ceramic fiber board
    Project location: France


    Selection of material

    1. Welding of different materials: phosphorous copper solder or brass rod solder may be used for welding of copper and iron, but corresponding soldering agents, such as mixed solder of borax, boric acid or boric acid only, shall also be used.Silver and copper soldering materials and appropriate flux can be used for welding of copper and steel or copper and aluminum. After welding, the residual flux near the solder joint must be cleaned with hot water or steam to prevent corrosion.When using the flux, it is best to dilute it with alcohol into a paste and apply it to the surface of the solder joint. During welding, the alcohol will evaporate rapidly and form a smooth film, which is not easy to lose.
    2. Welding of similar materials: for brazing copper and copper, phosphorous copper solder or copper phosphorus solder with low silver content can be used for brazing copper and copper. This kind of solder is relatively cheap and has good molten fluid.Ensure that the pipeline does not leak, welding pipeline horizontal horizontal vertical welding fluid evenly distributed in the weld.Ensure all parts function intact, pay attention to the direction of each valve.

    Procedures for copper brazing weld

    Tool preparation: welding gun, acetylene bottle, oxygen bottle, nitrogen bottle.Step: check whether the oxygen cylinder and acetylene cylinder are adequate.Perform welding according to drawing requirements.When soldering soldering solenoid valve, the coil of solenoid valve should be removed to prevent damage and pay attention to its direction.When welding other parts, such as liquid mirror, expansion valve, one-way valve, etc., attention should be paid to the thermal damage during welding. If necessary, the detachable parts can be removed and the welded valve body is covered with wet cotton cloth.Low speed nitrogen should be used in the welded pipe to prevent oxidation.After the welding, cool down and clean the oxide and slag in the pipe with dry nitrogen.
    Copper pipe welding appears to be a very simple thing, is also need to acquire a lot of methods and techniques, has the very strong technical and copper pipe welding is need to have professional skills training, to know the process of copper pipe welding and related matters needing attention, such ability make copper pipe welding, to avoid problems in the process of copper pipe welding.



    Inquiry

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