Latest ArticlesThe 60 kg/m new profile rail is studied starting from wheel-rail contact relationship aiming at the use of rail in China, which is more suitable for current wheel-rail contact relationship. Its practicability is proved by periodical tracking observation and comparison on railway from such aspects as the changes of appearance, abrasion, size of new profile for rail and light band of tread center as well as the problems found in tracking observation are inspected and analyzed.
In the paper, the properties, microstructure, cost and yield of low-alloy high-strength hot-rolled H-beam with niobium vanadium and titanium microalloying by industrial production are compared on the premise of satisfying the technical indexes of product as well as they are analyzed and discussed in detail combining with the theories. The hot rolled H-beam with such three components as niobium, vanadium and titanium has advantages and disadvantages so that the microalloy system can be selected for production according to the actual situation of enterprise and market price of alloys.
In the article, it is compared and analyzed the effects of rare earth elements on the mechanical properties, metallographic structure and corrosion resistance of welded joints for weather-resistant bridge steel Q420qNH. The contrast experiment of performances of welded joints with the same welding process for weather-resistant bridge steel Q420qNH and Q420qNHRE is carried out using special weather-resistant welding wire. The results showed that the toughness, low temperature impact performance and corrosion resistance of welded joints for weather-resistant bridge steel Q420qNH could be improved effectively with the rare earth elements combining with the conventional mechanical properties, metallographic structure and salt spray corrosion test results.
In this paper, it is introduced the transformation of original circuit for locomotive aiming at such faults of DF7G locomotive in service as the traction motor cannot abstract heat due to ventilating blower does not run as well as excitation system of AC auxiliary generator is easily to be burnt out when start machine and generate electricity so that the normal operation of locomotive is ensured.
In this paper, the development and reuse of data generated by the ERP system of Baotou Steel as data source of heterogeneous system are introduced. The master-slave database is realized with HADR technology and the operation of reading data from heterogeneous systems is executed on slave database so that the bottleneck of performances for database could effectively be solved.
The measurement and detection is a key process to guarantee product quality as well as the accurate quantity value of measuring instrument and operation specification are the basis of reliable measurement. The quality track with test/calibration in the whole process is developed and test/calibration laboratory information management system with full life cycle management for measuring equipment of company as the core is realized by changing the traditional management mode based on processing data with single machine and transinformation relying on paper circulation. As a result, the accuracy and reliability of valuation transfer and traceability for measuring instrument of Baotou Steel are improved as well as the integrated management of such resources as laboratory personnel, equipment and data files are standardized so that the measurement management level of Baotou Steel is enhanced.
In the paper, the establishment of theoretical framework in line with the enterprise network security management system of Baotou Steel is explored according to network security status in our country as well as information security standards at home and abroad aiming at essence and target of network security.
In this paper, it is mainly introduced the principles of flow measuring probe technology and its applications in the information security of enterprise network as well as elaborated its specific application scenarios and functions in enterprises. The practical applications show that it is one of the important tools to ensure safe and stable operation of network.
In the article, the necessity of outsourcing digital processing for archives is obtained by analyzing the characteristics of collections of Archives Center of Baotou Steel. The quality management is elaborated from such three aspects as formulating work plans of quality management and digital implementation plans of archives as well as quality control of digital processing for archives combining with some experiences of implementing informatization project for archives of Baotou Steel.
In this paper, it is discussed the measures taken for safe operations of new 5 sets of flue gas desulfurization and denitrification systems in the existing 6 JN60-6 coke ovens of Baotou Steel. The safety in operation of heating system for coke oven is improved through such security settings as lifting device of gate valve, interlocks of draft fan and gate valve as well as draft fan and automatically stop heating of coke oven, establishment of effective emergency linkage mechanism between desulfurization and denitrification and main control room of coke oven so that the reliable safety guarantee for stable and trouble-free operation of coke oven is provided.
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