Industry News

What precautions should be taken when using welding materials?

2022-07-25

When purchasing welding consumables, it is essential to select electrode types that are specifically suited to the application and, where necessary, to conduct weldability tests. For thick, large welded components with complex geometries and high structural rigidity, the substantial residual stresses generated during welding can readily lead to cracking in the weld seam; therefore, alkaline low-hydrogen electrodes with excellent crack resistance should be chosen. For weldments subjected to relatively low loads and where the weld area is difficult to clean thoroughly, acidic electrodes that are less sensitive to rust, scale, and oil contamination are recommended.

What are the main types of welding materials?

2022-08-03

Welding materials is a general term for the materials used in welding, including welding electrodes, welding consumables, metal powders, fluxes, and shielding gases. The development of the welding industry has primarily encompassed argon arc welding, CO2 shielded metal arc welding, oxygen cutting, and other welding processes. In China, the welding materials sector is highly market-oriented; however, ordinary low-grade welding electrodes and copper brazing consumables are characterized by low technological content and low barriers to entry, leading to severe overcapacity in recent years. As market competition intensifies, the industry has adopted large-scale, cluster-based business models, with some domestic firms employing aggressive strategies to capture market share and accelerate the restructuring of their product portfolios.

Precautions for the Use of Welding Materials

2022-08-15

Precautions for the Use of Welding Consumables. Welding consumables refer to the collective term for materials consumed during the welding process, such as welding electrodes, welding wires, metal powders, fluxes, and shielding gases. The welding industry is developing rapidly and is mainly categorized into argon arc welding, carbon dioxide welding, oxygen cutting, and electric arc welding.

The Role of Welding Materials in the Welding Process

2022-08-25

The role of welding materials in the welding process. Under the action of the welding heat source—whether resistive heat, arc heat, or chemical heat—the welding core or welding wire, serving as the filler material, is heated and melted, forming droplets that enter the molten pool and, together with the molten base metal, form the weld. The chemical composition and properties of the welding materials directly influence the quality of the weld metal.

What are the commonly used materials in welding materials companies?

2022-09-02

In general, welding-material manufacturers consider low-carbon steels to have better weldability than other steels. Moreover, the lower the carbon content, the better the weldability; conversely, the higher the carbon content, the poorer the weldability. The weldability of alloy steels depends on the specific alloying elements added. As a rule, chromium improves weldability more effectively than vanadium. Modern electronic manufacturing—specifically Level 1 (IC packaging) and Level 2 (assembly of electronic components onto printed circuit boards)—requires high-quality interconnect technologies as well as high-quality, zero-defect soldering processes. Aside from low-carbon steel welding materials, what other materials are commonly used by welding-material manufacturers?

Welding Characteristics of Carbon Steel Materials in Welding Material Companies

2022-09-14

Under normal conditions, welding does not result in severe microstructural hardening or the formation of quenched structures. Low-carbon steel has a low carbon content and relatively low levels of manganese and silicon; consequently, welded joints made from this steel exhibit excellent ductility and toughness. Its ductility and impact toughness are outstanding, and preheating or post-weld heating is generally not required when welding this material.

Characteristics of Stainless Steel Welding by Welding Materials Companies

2022-09-22

Welding-induced embrittlement of the weld and heat-affected zone is a process characterized by non-uniform heating and cooling, which leads to microstructural inhomogeneity. In welding materials, the ductile-to-brittle transition temperature of the weld and heat-affected zone is higher than that of the base metal; consequently, the base metal constitutes the weakest link in the joint. Moreover, the heat input during welding significantly influences both the mechanical strength of low-alloy high-strength steel welds and the properties of the heat-affected zone.

What are the proper welding techniques for aluminum welding wire, according to the welding materials company?

2022-10-08

What are the proper welding techniques for aluminum welding wire, according to welding materials companies? Aluminum welding wire is a column-shaped material with relatively low compressive strength and considerable softness, and it is highly sensitive to hydrogen solubility during the melting process. Key factors that significantly affect the performance of aluminum welding wire include surface finish, wire cleanliness, control of wire diameter, as well as wire warping and coiling conditions. So, how should aluminum welding wire be properly welded?

Could the welding materials company please introduce the various welding methods for stainless steel welding wire?

2022-10-12

Could the welding materials company please introduce the various welding methods for stainless steel welding wire? Only sufficient working pressure is applied to the surface of the stainless steel during welding. Due to the plastic deformation caused by this working pressure, the molecules can draw close to one another, resulting in solid-state fusion. This method includes cold arc welding, explosive welding, and others (primarily used for clad steel plates).