Revision of welding material standards at home and abroad, focusing on safety, environmental protection and high performance indicators

Standards are the technical program and quality cornerstone of industrial development.Recently, the International Organization for Standardization (ISO) and standards bodies in major countries such as China, the United States, and Europe have made a series of important revisions and updates to welding material standards.The revision of the standard has shown several distinctive characteristics: first, it pays more attention to safety and environmental protection. For example, the content of heavy metals (such as lead and cadmium) in welding wire products is more strictly restricted, and the evaluation method of the occurrence and composition of welding soot has begun to be taken into account. Scope.The second is to keep pace with the development of new materials, and to add the classification, technical requirements and test methods of supporting welding wires such as advanced high-strength steel, aluminum alloy, and magnesium alloy, so that the standard system keeps pace with the times.

Third, the performance indicators are more quantitative and refined.For example, a narrower fluctuation range is required for the strength and toughness indicators of the weld metal; the diffusion hydrogen content control level of the flux-cored wire-coated metal is further subdivided to adapt to different scenarios with different crack resistance requirements.Fourth, it has strengthened the requirements for product identification and traceability, and promoted enterprises to establish a sound quality management system.The improvement of these standards has directly raised the manufacturing threshold and technical threshold of the welding wire industry.Companies must upgrade testing equipment (such as more sophisticated spectrometer and diffusion hydrogen analyzer), optimize production process control, and even redesign product formulas to meet the requirements of the new standard.

In the long run, high standards will trigger a “reshuffle effect” in the industry.Small and medium-sized enterprises that cannot meet the requirements of the new standards will face elimination, while technology-leading companies can rely on products that meet or even exceed the standards to further consolidate their market position and participate in international competition.At the same time, unified and advanced standards will also help standardize market order, curb low-quality and low-price competition, guide industry resources to gather in the direction of high quality, high reliability, and environmental friendliness, and ultimately promote the structural upgrading and healthy development of the entire welding wire industry.