Is the electrode electrically conductive?
Because there is wire electrode conductive, synthesis of various substances, covered up, welding machine output two AC machine is not divided into wire, welding wire, welding machine DC cathode to anode grounding wire, two output voltage will be encountered after the ignition, the electrode is electrically conductive. The electrode was encountered after the ignition, melting body, outside of the medicine is to protect the melted wire, prevent the pores, electrode head with no welding electrode holder, if the flux is not conductive to clip, also cannot be welded
An electrode is a conductor. The electrode is metal cored coating called cores. The core is generally a certain length and diameter of the steel wire. When welding, the welding core has two functions: one is the conduction of the welding current, arc energy converted into heat, two cores melting as the formation of the weld filler metal and liquid base metal fusion.Electrode welding, welding core metal part of the weld metal. The chemical composition of cores, directly affect the quality of the welding seam. Therefore, the steel wire used as the core of the electrode has its brand and its composition separately. If used for automatic submerged arc welding, electroslag welding, gas welding, gas welding and other welding methods for the filler metal, known as the wire.The coating layer is coated on the surface of coating is the core. In the course of welding, the coating is decomposed and melted to form gas and slag, which play a role in mechanical protection, metallurgical treatment and technological performance improvement. Composition of coating material: Minerals (such as marble, fluorite etc.), iron alloy and metal powder (such as manganese, ferro titanium), organic matter (such as wood powder, starch), chemical products (such as titanium dioxide, water glass, etc.). For example, a light electrode without a coating is not easy to ignite the arc. Even if ignited, it can not burn steadily. In the electrode coating, usually contains potassium, sodium, calcium and other ionization potential of low substances, which can improve the stability of the arc, to ensure that the welding process continues.
See what you use general electrode, metal electrodes are electrically conductive, including welding, argon arc welding, carbon dioxide gas shielded electrode are electrically conductive, but PVC is not conductive electrode, it is plastic, its welding principle and the front is not the same, is used to realize the welding electrode heating and softening the.
