yang gaozhan: always pursue “first precision”
2024-10-03
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original title:
yang gaozhan: always pursue “first precision”
zhangjiakou daily reporter zheng yuanyuan correspondent wang hongwei gujiang
xuanhua, a city with a long history, has witnessed the vicissitudes of china's steel industry. since the 18th national congress of the communist party of china, as the country continues to promote green development and intelligent manufacturing, steel city has ushered in the spring of transformation.
as the leader of the maintenance team of the continuous casting operation area of hbis xuangang special steel co., ltd., yang gaozhan, who has worked for 31 years, has experienced many reforms. as he said: "the transformation and upgrading of steel city is not only the upgrading of equipment and technology, but also the cultivation of talent teams and the improvement of innovation capabilities. in this process, we have grown together with the times and realized the 'two-way rush' ’, ultimately achieving a ‘win-win situation for both parties’.”
when he met "national technical expert" yang gaozhan, he was sweating and oily. on the ladle rotary table of the 150-ton continuous casting machine in the furnace area, the manipulator control valve of the test ladle shroud was changed from manual control to electric control. he has been on the front line for 31 years, from an ordinary worker to the winner of the highest national award in the field of skilled personnel. the more he optimizes and improves equipment, the stronger his sense of accomplishment becomes.
in 1993, yang gaozhan graduated from a technical school, entered the gate of steel city, and became a machine fitter. at that time, the steel city had backward equipment and low production efficiency. faced with frequent equipment failures, yang gaozhan did not shrink back, but faced the difficulties. he worked side by side with his colleagues, practiced and explored countless times, and proposed a number of innovative transformation plans. in particular, the design and modification of the cutting car of the continuous casting machine not only improves production efficiency, but also ensures the continuity of production.
as the steel city continues to develop, yang gaozhan's innovation path becomes wider and wider. in 2011, the steel city underwent transformation and upgrading, and a new modern blast furnace and continuous casting machine were built. faced with new equipment and new processes, yang gaozhan led the team to innovatively transform the hydraulic system for medium-sized packaging baking, which significantly reduced the failure rate and improved production efficiency. his innovative achievements were recognized by the enterprise and won commendation from the provincial federation of trade unions.
entering a new era, steel city is accelerating its green transformation. in 2023, steel city will begin to adopt hydrogen-based shaft furnaces, leading the way into a new era of "hydrogen replacement of coal". yang gaozhan focused on high-end green materials, using technological innovation as a breakthrough point, and led workers to invest in new production. his brain was full of equipment, and even his dreams were about continuous casting machines, cooling beds, and hydraulic devices... it was these innovative dreams that made yang gaozhan accelerate the pace of innovation and embark on the path of a craftsman.
the operation accuracy of the cooling bed is not enough. yang gaozhan comprehensively sorted it out, reviewed the information, analyzed the crux, studied drawings, formulated plans, and conducted tests. the cooling bed's hydraulic cylinder oil suction check valve, oil discharge check valve, and oil volume adjustment needle valve were automatically control, accurately and stably adjust the oil volume; a damping structure is added between the pilot valve and the main valve, which reduces the opening and closing time of the main valve and buffers the impact of heavy loads on the hydraulic pressure. the synchronization accuracy of the cooling bed is increased from 25 mm to 15 mm, creating a the "first precision" in the cooling bed operation of domestic continuous casting machines.
the pursuit of "first precision" has made yang gaozhan successful. he has successively won the honorary titles of national technical expert, provincial technician with outstanding contribution, and provincial skilled craftsman. with 31 years of persistence and innovation, yang gaozhan has achieved more than 150 innovation results, 20 of which were awarded national invention patents and 99 were authorized utility model patents.
source: zhangjiakou daily
