葡京集团app「诚|信」

    <ruby id="tt51r"></ruby>

    <pre id="tt51r"><ruby id="tt51r"><mark id="tt51r"></mark></ruby></pre>
    <pre id="tt51r"><ruby id="tt51r"><mark id="tt51r"></mark></ruby></pre>

      <address id="tt51r"><strike id="tt51r"></strike></address>

              <del id="tt51r"></del> <ruby id="tt51r"></ruby>

                Plasma-transferred-arc-powder-welding (PTA) has a very high energy density. This reduces the heat-input and gives the possibility of a variable, reproducible diffusion zone.
                 
                A non-transferred arc (pilot-arc) is ignited between the tungsten electrode and the water-cooled copper-anode using high frequency. This pilot arc usually burns permanently during operation.
                 
                For welding an additional arc between the tungsten electrode and the work-piece is used. As plasma-gas and pilot-gas a protective gas (mainly argon) is used.
                 
                The PTA powder (additionally a wire may be used) is fed into the transferred arc and is welded on the substrate.
                 
                WISDOM use only inverter power supplies. They have a much higher efficiency and less power consumption than other types of powers supplies.
                 
                The main applications for PTA welding are:
                -  Valve-seats and –cones in combustion engines
                -  Cladding of tools
                -  Turbine-blades
                -  Sliding and sealing surfaces of armatures (gas, water and acid)
                -  Plungers and moulds in the glass-industry
                -  Pump parts, etc.

                 

                WISDOM main PTA types as below:

                葡京集团app