What material is the welding rod made of?

The electrode is to evenly press the coating (coating) on the welding core outside the metal welding core. There are strict regulations on the content of each metal in the solder core. The electrode consists of two parts: the core and the coating. Different types of solder cores are different. There are many types of electrodes, the most common ones on the market are silver electrodes, stainless steel electrodes, cast iron electrodes, carbon steel electrodes, aluminum electrodes, bottom alloy steel electrodes, cobalt-based electrodes, etc. It can also be divided into wear-resistant electrodes and universal electrodes according to the actual use of the electrode.

Silver electrode:

It is a kind of welding rod fixed with silver or silver base, which has excellent process performance, low melting point and good ability to fill gaps. And it has the advantages of high strength, good plasticity, electrical conductivity and corrosion resistance, and can be used to weld all ferrous and non-ferrous metals except aluminum, magnesium and other low melting point metals. This product is widely used in refrigeration, lighting, hardware and electrical appliances, instrumentation, chemical industry, aerospace and other industrial manufacturing fields.

Stainless steel electrode:

Refers to a type of electrode coated with stainless steel as raw material. It can be divided into chrome stainless steel electrode and chrome nickel stainless steel electrode, which are widely used in chemical, fertilizer, petroleum, medical machinery manufacturing and other industries. In addition to meeting the general welding process performance and the mechanical properties of the welded joint, the stainless steel electrode must also ensure that the welded joint can meet certain corrosion resistance requirements.

Cast iron electrode

It is a welding rod for cast iron, which is characterized by high strength, good plasticity, and can be machined. Cast iron is an iron-carbon alloy with a carbon content greater than 2%. Domestic can provide more than 10 kinds of cast iron electrodes. It can be selected according to different cast iron materials, different machining requirements and the importance of welding repair parts. Cast iron welding can be roughly divided into two types: preheat welding and cold welding.

Carbon steel electrodes:

Carbon steel electrodes are suitable for welding carbon steel and low-strength low-alloy steel. For low hydrogen type and iron powder type electrodes, the electrode must be baked above 350℃ before welding. Cellulose electrodes should be baked at a strictly specified temperature. If the temperature is too high, the cellulose in the coating will be burned and the inherent process performance of the electrode will be destroyed.