Gangyan Gaona applies for patents related to high-temperature coating regulation, high-temperature coating residual stress control, and promoting uniform cooling of workpieces.

On March 28, news emerged that the National Intellectual Property Administration’s information indicates that Beijing Steel Research High-Temperature Alloy Technology Co., Ltd. has applied for a patent titled “A Method and Device for Controlling Residual Stress Based on High-Temperature Coatings.” The application publication number is CN121737431A, the application number is CN202511897628.0, the application publication date is March 27, 2026, and the application date is December 16, 2025. The inventors are Sun Zhimin, Xie Mingzhao, and Qin Hailong. The patent agency is Beijing Chaofan Hongyu Intellectual Property Agency Co., Ltd., with patent agent Huang Yingjie. The classification numbers are C21D11/00, C21D1/70, C22F1/00, C21D1/18, G06F30/20, G06F30/10, G06F17/10, G06F119/08, G06F111/10.

The patent abstract shows that this application provides a method and device for controlling residual stress based on high-temperature coatings. This method includes: under preset cooling conditions, obtaining the simulated cooling rate of different thickness areas of the workpiece to be cooled through numerical simulation; taking the lowest cooling rate among all areas as the target cooling rate and determining the areas where the cooling rate exceeds this target value as target areas; based on the functional relationship between the preset coating thickness and the percentage reduction in cooling rate, calculating the target thickness of the thermal insulation coating required for each target area; and finally applying the coating of corresponding thickness to the target area and cooling. This method transforms cooling control from empirical operation to precise design through a simulation and quantification approach, utilizing a temporary removable coating to achieve active thermal insulation, effectively promoting uniform cooling of the workpiece without modifying existing cooling equipment, significantly reducing residual stress at the source, and possessing advantages such as precise control, strong applicability, and low cost.

Beijing Steel Research High-Temperature Alloy Technology Co., Ltd. was established on November 8, 2002, and was listed on the Shenzhen Stock Exchange on December 25, 2009, with both its registered and office locations in Beijing. The company is a leading enterprise in the domestic high-temperature alloy sector, focusing on the research and production of high-temperature alloys, with significant technological advantages and strong investment value.

Beijing Steel Research High-Temperature Alloy’s belonging to the Shenwan industry is Defense Military - Aviation Equipment II - Aviation Equipment III, involving aerospace military, aircraft engines, and commercial aerospace (aerospace aviation) sectors. Its main business involves the research, production, and sales of high-temperature materials used in aerospace, power, automotive, and other industrial materials, as well as manufacturing high-temperature and heat-resistant alloy casting equipment.

In 2025, Beijing Steel Research High-Temperature Alloy achieved an operating income of 3.697 billion yuan, ranking 7th among 13 companies in the industry. The industry leader, AVIC, had an income of 29.086 billion yuan, the second place, AVIC Aircraft, had 24.212 billion yuan, with the industry average being 7.536 billion yuan and the median at 3.697 billion yuan. In its main business composition, casting alloy products accounted for 2.48 billion yuan, 67.09%; deformed alloy products 955 million yuan, 25.84%; new alloy products 239 million yuan, 6.46%; and others (supplementary) 22.4637 million yuan, 0.61%. Regarding net profit, in 2025 it was 201 million yuan, ranking 8th in the industry, with AVIC Aircraft at 1.343 billion yuan as the first, and AVIC High-Tech at 1.033 billion yuan as the second, with the industry average being 339 million yuan and the median at 209 million yuan.

The recent patent situation of Beijing Steel Research High-Temperature Alloy Technology Co., Ltd. is as follows:

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Editor: Xiao Lang Quick Report