Recently, Jilin Province Science and Technology Association, Jilin Province Federation of Industry and Commerce, and Jilin Province Service Center to promote the development of small and medium-sized enterprises jointly launched the 2023 Jilin Province enterprise "innovation talent" selection activity, after qualification review, municipal preliminary assessment, provincial final assessment, Wu Guiwen, hydraulic engineer of Equipment department of Jilin Xinda Iron and Steel Co., Ltd. was awarded the honorary title of "Innovation Master" skill craftsman of Jilin Province.

Wu Guiwen joined Xinda in 2018 and is responsible for the management of enterprise hydraulic equipment. All along, he has been based on his position to carry out fine management of hydraulic lubrication, solve technical problems encountered in production, improve the operation rate of mechanical equipment, reduce the failure rate and production costs, and ensure the safe operation of equipment. Declared and has a number of utility model patents and invention patents, the contemporary craftsman spirit written in down-to-earth post practice.

Equipment maintenance rules and regulations

As a hydraulic equipment engineer, after he came to Xinda, he first investigated the management status of hydraulic equipment and found that the maintenance method of equipment was mainly subjective maintenance. Therefore, systematic control was carried out for oil quality and oil use temperature. Formulate the "Hydraulic Lubrication Daily Management Measures", requiring the branch factory to carry out regular inspection and testing of the oil, according to the physical and chemical indexes of the oil, the lubricating oil is recycled to ensure that the hydraulic equipment runs under the best lubrication and maintenance.

In view of the use of lubricating oil temperature problem, he stressed to ensure that the equipment cooling system is normal, because once the temperature is too high, on the one hand, it will affect the service life of the lubricating oil, on the other hand, it will reduce the efficiency of the hydraulic system components, increase internal leakage, and affect the normal operation of the equipment.

Through Wu Guiwen's fine management of the oil quality and oil temperature of the hydraulic equipment, the hydraulic equipment of each branch plant runs well, effectively ensuring the stable and smooth operation of production.

Fine management to reduce costs and increase efficiency

In order to further improve the efficiency of equipment operation and reduce oil consumption, he used a year and a half to conduct data statistics, requiring each branch plant to report oil consumption in strict accordance with the requirements every month. In the daily equipment maintenance management, each branch is required to strictly implement the "Daily Management Measures for Hydraulic Lubrication", according to the test results, formulate the oil replacement cycle, strictly according to the cycle of replacement, and need to apply for approval after the oil change, to achieve fine control of the oil. In order to ensure the implementation of the system in place, Wu Guiwen conducted relevant inspections of the branch factory every week to track the use of oil products.

Through his fine management, the cumulative savings of oil products in 2020 and 2021 exceeded 5 million yuan, and the savings of more than 2 million yuan in 2022.

Get to the bottom of it and solve the problem

Wu Guiwen works carefully, strives for perfection, treats problems and likes to get to the bottom of them. Hot melt block shop equipment cylinder, normal when performing down action, but slow when performing up action. On-site operation and maintenance personnel carefully checked the equipment and did not find the reason, and then contacted the equipment manufacturer, the manufacturer's technical staff in the remote guidance, the problem still could not be completely solved. This can make it difficult for the on-site personnel, even the technical personnel of the manufacturer have not been able to solve this problem, should the equipment be scrapped?

Later, I heard that Wu Guiwen was good at dealing with hydraulic equipment failures, so I invited him to the scene. Wu Guiwen first got familiar with the schematic diagram of the equipment system, investigated the equipment one by one, and processed all related factors, but there was still no significant improvement after the test. But he did not give up, and then with the field personnel to understand the actual operation of the equipment related parameters and equipment use records, found that the latest maintenance record of the equipment was to deal with oil leakage. Wu Guiwen sorted out again, opened the same equipment to compare the operating parameters, and combined with the maintenance record to judge the conclusion: the actual parameters and the displayed parameters are inconsistent, and the system pressure of the two devices is different. He then boarded the equipment platform and found that the compensator of the oil return system was obviously expanded when the problem equipment was in action. After adjusting the oil return butterfly valve, the problem of the equipment was solved.

Professional specialization innovation dare to do

Wu Guiwen based on the position, deep drilling professional knowledge, actively participate in the company's technical transformation, according to the actual use of field equipment, through exchanges with post personnel, maintenance personnel and professional and technical personnel, obtain information, and then through field investigation, tracking, found the problem. For example, equipment design defects, problems in the use process, causes of failure, problems that are not easy to operate and maintain, function decline, efficiency reduction, etc., are discussed and addressed, the real causes are found, and improvement measures and programs are proposed.

The hydraulic cylinder is locked in the rough and medium rolling mill of Jilin Xinda Iron and Steel General Mill wire Rod Branch, which has the problem of oil leakage. The locking device only relies on the valve of the system to lock, which has drawbacks. Because there is a certain distance between the valve platform and the cylinder, and it is easy to be affected by the environment, the oil seal is scratched during operation. In response to this problem, Wu Guiwen conducted in-depth research and detailed demonstration. Based on the original equipment, he added disc spring mechanical locking device and hydraulic control valve group to the cylinder to achieve mechanical locking and improve the yield.

By solving the problem, the invention patent of "A roughing mill with reliable locking function" was declared. By locking and unlocking, the position of the mill on the stand was adjusted, and the roll groove was quickly changed to meet the production demand. The combination of hydraulic control check valve, pressure retaining piston and spring can compensate the pressure in the cylinder when oil leakage occurs in the oil pipe and cylinder, and ensure the lock of the roughing mill.

From the analysis of oil consumption alone, according to the oil consumption of the production line in the past two years, it is estimated that the oil consumption can be reduced by about 960,000 yuan/year after the renovation.

There is a will to do everything possible, no will sigh difficulties and obstacles. Wu Guiwen is self-reliant, brave and active, promotes enterprise innovation and efficiency, dares to challenge the "jam neck" technical problems, shows the innovative style of Xinda people in the new era, and enhances the competitiveness of enterprises. With the new trend of The Times, in the new journey full of challenges, all Xinda people will adhere to innovation as the driving force for development, cultivate the innovation culture that advocates innovation, dares to innovate, and is good at innovation, add impetus and vitality to innovation, and use innovation to promote the wheels of Xinda's development toward a bright future!