Chongqing Steel obtains invention patent authorization: "A method for adjusting the rectangularity of a continuous casting mold for slab caster"

Securities Star News, according to Tianyancha APP data, Chongqing Iron & Steel (601005) has recently been granted a new invention patent. The patent is titled “A Method for Adjusting Rectangularity of a Continuous Casting Machine Crystallizer,” with application number CN202310654325.0, and it was authorized on February 24, 2026.

Patent Abstract: This invention belongs to the field of steelmaking continuous casting. It relates to a method for adjusting the rectangularity of a continuous casting machine crystallizer, which can reduce or even eliminate the increase in weld lines caused by rectangularity changes during online use of the crystallizer. It can prevent start-up leakage and steel clamping leakage in the continuous casting machine, reduce unplanned casting stops, improve the operation rate of the casting machine, meet the factory’s capacity requirements, and reasonably match the production of the steel/iron interface and the steel rolling interface, thereby lowering production costs.

Since the beginning of this year, Chongqing Iron & Steel has obtained 16 new patents, an increase of 128.57% compared to the same period last year. Based on the company’s 2025 interim financial report, the company invested 14.81 million yuan in R&D in the first half of 2025, a decrease of 24.57% year-on-year.

According to Tianyancha big data analysis, Chongqing Iron & Steel Co., Ltd. has invested in 16 external companies, participated in 6,307 bidding projects; has 39 trademark records and 1,930 patent records; additionally, the company holds 332 administrative licenses.

Data source: Tianyancha APP

The above content is compiled from publicly available information by Securities Star and generated by AI algorithms (Network Information Backup 310104345710301240019). It does not constitute investment advice.