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Welding and metal processing

Industrial gas supply and technology for welding and metal processing industry

Improve productivity

As a provider of industrial gases, applications, products and services, Praxair can trust customers to support welding, cutting and other processes. With the ProStar ® product line, including welding supplies, cutting machines and automation from different manufacturers, and strategic distributed factories and centers, we can efficiently deliver industrial and process gases to our customers. Praxair's scope of services is not limited to the supply of high-quality products. We can provide you with a total solution. With the proprietary StarSolver ® productivity improvement program, we will work with you to reduce production costs, increase productivity and improve product quality. In addition, we also have 5 R & D centers responsible for the development of new technologies to help you achieve the above goals.

Industrial gas, shielding gas and laser gas for welding and metal processing industry

ArgonArgon rollover Argon

Argon is used to create an inert gas shield. It is usually mixed with other industrial gases such as carbon dioxide, oxygen, hydrogen and nitrogen. It can enhance the arc stability and characteristics of gas shielded metal arc welding. In addition, it is tungsten electrode arc welding (GTAW). The main protective gas of the process.

Carbon DioxideCarbon Dioxide rollover carbon dioxide

Carbon dioxide is often mixed with argon to form a protective gas that protects molten metal from air pollution during arc welding (GTAW).

OxygenOxygen rollover oxygen

Oxygen can be used as a plasma cutting gas and laser cutting auxiliary gas, and can also be added in small amounts as a protective gas for carbon and stainless steel welding.

HeliumHelium rollover Helium

Helium is an inert industrial gas with high thermal conductivity. It can protect the welding pool and prevent oxidation during the welding process of metals such as aluminum, stainless steel, copper and some magnesium alloys.

HydrogenHydrogen rollover hydrogen

Hydrogen is the lightest of all gases. Used to improve plasma welding and cutting operations. Because hydrogen can reduce oxides, it is usually mixed with argon for stainless steel welding.

NitrogenNitrogen rollover Nitrogen

Nitrogen can be used as an auxiliary gas for laser cutting or plasma cutting, and also as a shielding gas for stainless steel welding.

AcetyleneAcetylene rollover Acetylene

Acetylene is the gas with the highest flame temperature among all commercially available flammable gases. It provides an ideal combustion environment for oxyfuel welding and cutting and brazing operations.

StarFlame ™ C cutting gas

As an alternative gas for oxyfuel cutting, StarFlame C guarantees the safety of thick cutting of carbon steel under severe conditions. This gas can also be used in large quantities for numerically controlled oxyfuel applications.

Industrial applications in the welding and metalworking industries

Cutting process

Praxair will help you find the right gas for industrial cutting applications. From oxyfuel cutting to plasma arc cutting to laser cutting, our gas and gas supply systems will greatly increase production efficiency.

Cutting Processes

Welding process

We will help you choose the most cost-effective welding procedure based on your requirements. From laser welding to submerged arc welding and gas shielded metal arc welding, our technology covers almost all applications. .

Welding Processes

Brazing and welding

Praxair brazing and welding gases and consumables help you build strong, renewable joints by minimizing oxide formation and filling metal flooding. We will work with you to choose the most suitable brazing or welding system to produce the highest quality joints.

Industrial services for the welding and metalworking industry

StarSolver® Productivity Improvement Program

With the StarSolver ® solution, we will review your current welding operations, analyze the collected data, and recommend high-quality, low-cost solutions. We will provide you with full service.

StarDirect ™ distribution system

Praxair has a large inventory of welding products in North America. With 25 strategically located distribution centers, we can guarantee on-time delivery of 30,000 products from more than 200 of the best industry manufacturers.

Praxair works with you to optimize the entire process. From consulting to implementation and practical use, Praxair provides you with a complete set of industrial services to assist in monitoring and managing the gas supply and do more with less resources.

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