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Good news from the China National Intellectual Property Administration

Hebei Xinda Iron and Steel Group Co., Ltd

Test method for weldability of hot-rolled H-beam steel

Invention of the device using this experimental method

Preliminary review by China National Intellectual Property Administration

Substantive review and other procedures

Successfully won national invention patent

This award of the National Invention Patent Certificate marks a new breakthrough in the research and development work of Hebei Xinda Iron and Steel Group Co., Ltd., which has a positive promoting effect on enhancing the company's market competitiveness, core technological competitiveness, and innovation leadership!

Patent Introduction

After the welding of existing hot-rolled H-beam welded steel components is completed, they need to be processed into refined samples before conducting weldability tests. This requires tedious procedures such as sampling and sample preparation, which cannot achieve the most direct and reliable actual weldability test of hot-rolled H-beam welded structures. Moreover, they can only conduct vertical tensile and compressive tests, and cannot simulate the oblique alternating load stretching of structural components during earthquakes, Moreover, it is not possible to simulate the weldability test of structural components in earthquake and fire environments, resulting in incomplete and inaccurate evaluation of the weldability of steel components.

The present invention proposes a hot rolled H-beam weldability test method and a device using the test method to overcome the defects of the aforementioned technology. Tighten the upper and lower hot-rolled H-beams in the I-shaped steel components using the upper and lower sample fastening components respectively. Select a test simulation environment and test mode, and initiate a weldability test to apply force to the upper and lower sample fastening components. After the I-shaped steel structural components undergo elongation, deformation, and yield, observe whether cracks appear at the weld seams of the I-shaped steel components and the severity of the cracks, Evaluate and evaluate the welding performance of hot-rolled H-beams.

This invention achieves the purpose of simulating the weldability test of I-shaped steel components under different seismic environments, achieving simulation of different seismic conditions, observing the elongation, deformation, and yield of I-shaped steel structural components, as well as whether there are serious cracks and cracks at the weld seam during deformation and yield.

For many years, Xinda has always adhered to national policies and continuously increased research and development investment under the national strategy of vigorously promoting "quality power" and "technology power". It is committed to tackling and solving industry problems, focusing on technological innovation and breakthroughs, continuously opening up new fields and tracks for development, and constantly shaping new driving forces and advantages for development. The independently developed "hot rolled H-beam weldability test method and device using this test method" invention technology has broken through the industry bottleneck technology and solved the pain points, difficulties, and blockages in the industry.

Patents are an important manifestation of scientific and technological achievements, and an important manifestation of an enterprise's independent innovation ability, core competitiveness, and sustainable development momentum. Their quantity and quality to some extent reflect important indicators of a region's scientific research ability and innovation level. Xinda has advanced technological level, leading research and development strength, and excellent innovation ability. It has long practiced the idea of "innovation is the first driving force for development, and protecting intellectual property is protecting innovation", firmly established awareness of intellectual property protection, improved the intellectual property protection system, and carried out invention patent application work around transformation and upgrading projects, new technologies, new processes, etc.

To encourage employees' enthusiasm for invention and creation, we will closely integrate technological innovation with patent management, and integrate patent creation throughout the entire process of project research and development, production, and operation, achieving full coverage of intellectual property and full chain protection. As of now, Hebei Xinda Group has accumulated 1742 independent intellectual property rights, including 23 national invention patents, 893 utility model patents, and 826 software patents. We have been awarded the titles of "National Intellectual Property Advantage Enterprise", "Patent Innovation Potential Enterprise in China's Steel Industry", and "500 Private Enterprise R&D Investment Rankings", successfully ranking among the "Three New Entrants in Global Steel Industry Technology Competition".

Among them, the "one type of H-beam production process" effectively solves the problem of easy rusting of existing H-beams during production and transportation, and the mechanical properties of H-beams can be stably maintained; An environmentally friendly sintering system and sintering method "enables biomass fuel balls to replace some coke powder, achieving the goal of reducing carbon emissions and improving quality. Each innovation achievement not only enhances brand value, but also enhances Xinda's independent innovation capability, forming a continuous innovation mechanism, and providing strong and powerful guarantees for quality.

Innovation leads development, and technology wins the future. Guided by the development concept of "innovative, green, open, and win-win", Xinda starts with quality, strives for development through innovation, and continues to strive step by step. From unknown to well-known and widely recognized, it has created a magnificent picture of high-quality development. In the future, Xinda will continue to take the path of independent innovation, with a broad perspective and promising results, thick accumulation and thin development. In the process of adhering to the principles of innovation, we will tap into our potential, solidify our wisdom, and solve the "bottleneck" problem. With key common technologies, cutting-edge leading technologies, and disruptive technological innovations as breakthroughs, we will come up with more "unique skills" to jointly create a new future for steel!