Polished TIG Welding Tungsten Electrodes Rod 0.5~25mm Diameter Green Tungsten Electrode Red Tungsten Electrode

Tungsten Electrode Used For TIG Welding

1. Tungsten electrode description for TIG welding:

Due to the properties of tungsten, it is well suited for TIG welding and other electrode materials for this type of work. The welding performance of tungsten electrodes is improved by adding rare earth oxides to tungsten metal to stimulate its electron work function. This results in better arc starting performance of the electrode, increased stability of the arc column, and lower electrode burnout rate. Cerium oxide, lanthanum oxide, zirconium oxide, yttrium oxide, and thorium oxide are typical rare earth additions.

Tungsten electrode is a tungsten electrode made of materials with high melting point, corrosion resistance, high density, good thermal conductivity and electrical conductivity. Tungsten electrodes are widely used in welding in their properties. Tungsten electrodes ground or polished and black rods. The final colors are all different and the difference can be discerned. In tungsten electrodes, more importantly, their final color is different, and the tungsten content is also different. When welding, choose the right tungsten electrode to make welding easier and it is important to get a high-quality weld. Some important factors to consider in making the right choice are the type of power source (inverter or transformer), welding material (steel, aluminium or stainless steel) and material thickness.

2. Classification of Tungsten Electrode Used For TIG Welding:

3. Scope of application of Tungsten Electrode Used For TIG Welding:

Tungsten electrode is used for TIG welding, which is a tungsten alloy bar made by adding about 0.3%-5% rare earth elements such as cerium, thorium, lanthanum, zirconium, yttrium, etc. in the tungsten matrix by powder metallurgy. Press machined, diameters from 0.25 to 6.4mm, standard lengths from 75 to 600, and the most commonly used sizes are diameters 1.0, 1.6, 2.4 and 3.2, the shape of the electrode tip is an important factor for TIG, when When using DCSP, the electrode tip needs to be sharpened and the tip angle varies with the application range, electrode diameter, and welding current. Narrow joints require a smaller tip angle. When welding very thin materials, it is necessary to A low current, needle-like minimum electrode is used to stabilize the arc, while a properly grounded electrode ensures easy arc ignition, good arc stability and proper bead width. When welding with AC power, it is not necessary to grind the electrode tip, because with the proper welding current, the electrode tip will form a hemispherical shape. If the welding current is increased, the electrode tip will become a bulb shape and may melt and contaminate the molten gold.

With the development and expanded application of inert gas shielded welding of tungsten electrodes, people's research on tungsten electrodes has become more and more in-depth. In plasma arc welding, cutting and non-melting electrode argon arc welding, thorium tungsten electrodes were used in the past, but due to the radioactive effects of thorium (the radiation dose of 3.60 × 105 Curie / kg), it will damage human health and pollute the environment , so that the thoriated tungsten electrode is replaced by a cerium tungsten electrode with a cerium oxide content of 2 to 4%. In DC positive argon arc welding, the cerium tungsten electrode is easy to start the arc, and the electrode burning loss is small, allowing the welding current density to be larger than that of thorium tungsten; while in AC argon arc welding, the burning loss of cerium tungsten electrode is larger than that of thoriated tungsten electrode. , The allowable range of welding current selected for cerium tungsten electrodes is smaller than that of thoriated tungsten electrodes.

Thorium-tungsten electrodes are easy to handle and work well even at overloaded currents, and many people still use this material, and it is seen as part of high-quality welding. Nevertheless, people are gradually turning their attention to other types of tungsten electrodes, such as cerium tungsten and lanthanum tungsten. Because the thorium oxide in the tungsten-thorium electrodes produces a small amount of radiation, some welders are reluctant to approach them.

4. Measures to Prevent Radiation Injury of Tungsten Electrode Used For TIG Welding:

1). Thorium-tungsten electrodes should have special storage equipment. When storing in large quantities, they should be hidden in an iron box, and an exhaust pipe should be installed.

2). When using an airtight cover for welding, the cover should not be opened during operation. When operating manually, you must wear an air supply protective helmet or take other effective measures.

3). A special grinding wheel should be provided to grind thorium tungsten electrodes. The grinding machine should be equipped with dust removal equipment. The grinding debris on the ground of the grinding machine should be cleaned frequently by wet cleaning and concentrated and deeply buried.

4). Wear a dust mask when grinding thoriated tungsten electrodes. Wash hands with running water and soap after touching thoriated tungsten electrodes, and wash work clothes and gloves frequently.

5). Select a reasonable specification during welding and cutting to avoid excessive burning of the thoriated tungsten electrode.

6). Use cerium tungsten electrodes or lanthanum tungsten electrodes instead of thoriated tungsten electrodes as much as possible, because the latter two are non-radioactive.

Please click below button for learn more our products.

Shaanxi Peakrise Metal Co., Ltd. is an rich experienced tungsten,molybdenum, tantalum, niobium, titanium,zirconium,nickel non-ferrous metal production enterprise,main products include tungsten-copper alloy, molybdenum-copper alloy, tungsten-molybdenum alloy, high specific gravity tungsten alloy, tantalum alloy,niobium alloy,titanium alloy and other more than 100 kinds of products.In 2010, with the surge in export sales of products in this industry, we began to focus on foreign trade export business,provide high-quality non-ferrous metal products for the international market.After years of development,at present, it has become a comprehensive non-ferrous metal production enterprise integrating manufacturing and processing, material research and development, product testing, and stock inventory.The development of nearly ten years reminds us that high-quality products and services are always our top priority,at the same time, we continue to expand into new fields and provide high-quality products and services for more domestic and global customers.Products are exported to Taiwan, Ukraine, South Korea, the United States, Australia, Germany, Iran and other countries, and have established long-term good cooperative relations with customers. Our products are highly recognized and evaluated by customers.

Peakrise Metal has a variety of production equipment, such as intermediate frequency sintering furnace, vacuum arc melting furnace, laser cutter,plasma electron beam melting furnace, vacuum annealing furnace, various rolling mills, wire drawing machines, plasma welding rooms, lathes, milling machines, sawing machines, drilling machines, Shears, Stamping Equipment, Cutting Equipment, Grinders, Straightening Machines, CNC, etc.

Five Reasons To Choose Us

1. Rich production and export experience

Our company specializes in the R&D, production and processing of tungsten, molybdenum, tungsten copper, molybdenum copper and their alloy materials. In terms of metal deep processing, we have more than 13 years of rich production experience and export experience, and solve related import and export problems for customers. , one-stop solution to all difficulties.

2. Low factory price

We have our own factory and long-term stable manufacturers, we can provide customers with high-quality products at extremely low ex-factory prices. If you are interested in our products, please feel free to contact us. We are confident that you will enjoy all quality products at wholesale prices.

3. Quality Assurance

The company has established a complete quality assurance system based on the ISO9001 standard, and is equipped with advanced testing instruments, adopting international unified testing standards; and in order to ensure the traceability of each batch of products, we will establish documents for each batch of products, recording from production, The whole process from shipment to customer feedback, thus improving product quality and customer satisfaction.

4. Fast Shipping/Professional Packing

Through long-term partnerships with UPS, FedEx, DHL and other leading global carriers, we are able to provide world-class shipping options. Your products will be carefully inspected and safely packed before dispatch. To ensure that we always provide you with the highest level of service.

5. Best Customer Service

We value our relationship with every customer, so our professional customer service team is always here to help. Always take quality and service as our responsibility, and always cooperate with customers with professional technology and integrity. Customer satisfaction is our eternal purpose, we provide first-class service to make customers fully satisfied.