The subject of this publication is to analyze the circumstances and causes of accidents at work in a selected industrial enterprise that provides services in the field of waterjet cutting and laser beam. The paper present the statutory definition of an accident at work and its basic categories (light, heavy, mortal and collective accident). It also discusses the most popular accident investigation method – the TOL method, which classifies the causes of accidents into three basic groups: material-technical, organizational and human. In the further part of the work the characteristics of the waterjet operator’s work station were made, including the scope of activities, possible occupational hazards and preventive actions. Next, the results of the analysis of the circumstances and causes of accidents at work were presented. In the period from 2013 to 2018 eight accidents were reported, resulting in minor injuries, such as cuts and cuts, fracture of the phalanx, overloading of the spine, leg twisting or knee injury.
The work identifies and analyzes fire hazards in a selected plant - the fuel base. On this basis, the risk of these risks was estimated and methods of their prevention were established using the PHA method.
The paper presents a modification of the slitting pass system, which ensured a reduction in roll wear during three-strand rolling of ribbed bars with a diameter of 16 mm, and thus reduced the associated costs. The theoretical and experimental research on the rolling process of ribbed bars with a diameter of 16 mm rolled in three-strand technology was carried out on a D350 18-stand continuous bar rolling mill conditions. To determine the cost of slitting pass wear, the results of numerical calculations of the frictional force unit of work obtained using the Forge2011® computer program was used, as well as empirical calculations.
The review of definitions allows to state that knowledge management in enterprises is a complex, multi-aspect process requiring the implementation of a number of interrelated mechanisms and instruments. Sharing knowledge can increase employee productivity, team performance and the ability to transform diversity into creativity and organizational innovation. Sharing of knowledge in the enterprise should be implemented both in a formal and informal way and be supported by appropriate communication mechanisms, employee exchange programs, job rotation, mentoring relations, techniques Only a well-constructed, implemented and modified system can ensure achieving the intended goals related, among other things, to ensuring the proper functioning of quality assurance mechanisms. and tools for assessing teamwork, a z system promoting creativity and cooperation. The main purpose of the publication is to present the results of research conducted on a sample of 22 enterprises regarding the analysis of the extent of enterprises’ use of knowledge and human capital potential to improve the quality management. The research focused mainly on the impact of selected elements of management of knowledge and human capital on the level of employee awareness, as well as the number and type of non-compliance of products. The study used a questionnaire and statistical analysis of data from manufacturing processes.
The publication presents the results of research on the scope of practical use of available methods and tools of quality management by enterprises. The analysis was based on surveys conducted at the Production Management Institute of the Faculty of Production Engineering and Materials Technology of the Częstochowa University of Technology. The presented study applies only to the information collected so far as the research work commenced is still being continued. Currently, data (correctly completed questionnaires) has been collected from fifty one small, medium and large production companies located primarily in the Śląskie and Łódzkie region. Both the organizations surveyed for the needs of this project and the cases cited in the literature indicate that the group of the most commonly used tools and methods is quite limited and in a sense comes down to the most known. This situation may partly result from the specifics of the industry and the nature of production. In addition, providing questionnaire response suggestions (as examples, the most frequently used methods and techniques) may have influenced the choices made by the respondents. At the same time, in some cases, low awareness or insufficient substantive knowledge may have contributed to the belief among the respondents that the techniques are implemented in the enterprise while in reality these techniques have never been used. All remarks and observations noticed at this stage of the research will be taken into account in subsequent analyzes.
Michal Sikora, Petr Janík, Pavlína Pustějovská and Simona Jursová
The chapter deals with the use of traditional carbonaceous fuels in the production of agglomerates. An important part is focused primarily on the use of these carbonaceous fuels in the production of various types of agglomerate. Anthracite together with coke breeze was tested as a fuel to assess the substitution of coke dust by anthracite for technological and qualitative parameters of sintering.
Efficient functioning in the contemporary market is a fundamental need of every organization. In times of globalization and an intensive technological and engineering progress, attaining a proper position and retaining it is a big challenge in almost every branch of industry. This is especially difficult for the SME sector, as it requires financial expenditures on system solutions and the IT base, among other things. This is where “Cloud Computing” comes in. Cloud computing services consist in providing and making available IT resources (efficient, scalable and tailored to the customer’s needs) through the Web. Thanks to wide access to intensively developing mobile systems, the low costs of computer components and the associated increasingly common use of Internet of Things (IoT) in numerous devices connected to the Internet, data processing is being gradually moved onto the Web peripheries. The purpose of the study is to highlight advantages and possible threats associated with the use of Cloud Computing-based solutions for aiding the activity of enterprises at a varying organizational level following the 4th industrial revolution.
The increase in the quality requirements for the pipes and the increasing needs to reduce production costs, while increasing the efficiency of the process in market of hot rolled pipes are observed. One of the cost reduction factors is the reduction of the number of defects by early detection and, if possible, the removal of non-conformities. Incompatibility is an error that can be removed in accordance with the performance standard that does not cause defects (Norma API). The defect is imperfection that is so important that it is the basis for the removal of the product or its part based on the criteria set out in the performance standards. In pipe manufacturing processes, defects and batch incompatibilities can be distinguished, which arise in the steelworks during metal solidification and roll forming in the course of metal processing. The defect may also arise as a result of removing steel material or result from rolling processes defects. The paper presents the analysis of the process of quality control of pipes manufactured using the pilgrim method on the basis of real process data. The analysis were involved 1070 pieces of ingots from 11 different melts for rolling pipes. At various stages of production, discrepancies and defects were revealed, which were caused by metallurgical or technological defects associated with rolling pipes. The total amount of discrepancies and defects eliminated 168 pieces of finished pipes. The aim of the work is to show that by means of appropriately selected methods of eliminating imperfections, it is possible to increase the efficiency of the manufacturing process.
In the paper there was presented the role and importance of choosing appropriate quality management methods in making decisions on implementing corrective actions on the example of a selected metallurgical company. There was presented application of the results of production process improving methods, such as 5 Why and FMEA, to indicate corrective actions. Moreover, it was analyzed whether, after introducing these activities, it was possible to eliminate or limit defects in the production process. For this purpose, the level of the RPN index was recalculated – after the changes were introduced. Furthermore, the costs of defects before and after the introduction of corrective actions were estimated.
Marcin Knapinski, Yuri L. Bobarikin and Yuri. V. Martyanov
One of the variable parameters in steel cord twisting technologies is the steel cord tension before final reel. Changing this parameter is used to produce steel cord with high quality of straightness. Steel cord straightness is the most important technological parameter after tensile strength. It is simple to change the value of steel cord tension with special mechanisms or devices in composition of cable machines and twisting machines. It is very important to know the measures of tension setting. Low tension causes bad quality of steel cord and defects. High tension may brake steel cord during the twisting and lapping. Also high tension may change the mechanical properties of steel wire in the steel cord construction. The influence of steel cord tension in the range from 9 N to 30 N on active equivalent stresses in wire cross section and macro displacements of wire contact points in steel cord construction was shown. Effect of steel cord tension during the lapping on steel cord straightness after lapping was shown. In this research the optimal tension for producing steel cord 2x0.30HT was defined with numerical simulation, finite element analysis and criteria method. The optimal value of tension for other steel cord constructions will change, because of number of wires and its hardness.