Pub Date : 2023-06-19DOI: 10.30987/2223-4608-2023-43-48
B. Bazrov
Specialization types such as subject, technological, their levels and areas of their effective application are viewed. Since any specialized production is aimed at running-out production, so subject specialization is primary, for example, in the produc-tion of automobiles, as for technological specialization, it is secondary, for it shows a technological method to allow making a product, for example, in the foundry production. The level of subject specialization and the level of technological special-ization should dovetail into one another. It is shown that the types of production (unit, full-scale, mass) are based on the cor-responding levels of subject and technological specialization, the lower the level of subject specialization, the lower the level of technological specialization. For example, small volume manufacturing is due to a low level of subject specializa-tion. An increase in the level of subject specialization results in the level increase in technological specialization - manufac-turing production process management, etc. Subject-specific specialized production can be divided into two groups: the first group includes the production of products that meet human needs, for example, vehicles and means of their engineering sup-port, for example, machine tools. The second group includes specialized production of their elements (assemblies, parts), for example, pumps, motors, screws, nuts, etc. The problem of specialized production management of products related to the sec-ond group is the lack of complete information about their design diversity and frequency of application. To solve the prob-lem, it is proposed to consider the products of the second group in a modular representation, which allows all their diversity to be divided into two groups: functional technological modules (FTM) that ensure the performance of a product's function-al purpose and functional service modules (FSM) that ensure (FTM) functioning. On this basis, a systematic approach ap-plicable for specialized production management for products of the second group, is given It is shown that for the implemen-tation of the proposed system approach in the specialized production management for the products of the second group, it is necessary to build a database of two types: FTM database and the FSM database.
{"title":"Machine-building line of production","authors":"B. Bazrov","doi":"10.30987/2223-4608-2023-43-48","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-43-48","url":null,"abstract":"Specialization types such as subject, technological, their levels and areas of their effective application are viewed. Since any specialized production is aimed at running-out production, so subject specialization is primary, for example, in the produc-tion of automobiles, as for technological specialization, it is secondary, for it shows a technological method to allow making a product, for example, in the foundry production. The level of subject specialization and the level of technological special-ization should dovetail into one another. It is shown that the types of production (unit, full-scale, mass) are based on the cor-responding levels of subject and technological specialization, the lower the level of subject specialization, the lower the level of technological specialization. For example, small volume manufacturing is due to a low level of subject specializa-tion. An increase in the level of subject specialization results in the level increase in technological specialization - manufac-turing production process management, etc. Subject-specific specialized production can be divided into two groups: the first group includes the production of products that meet human needs, for example, vehicles and means of their engineering sup-port, for example, machine tools. The second group includes specialized production of their elements (assemblies, parts), for example, pumps, motors, screws, nuts, etc. The problem of specialized production management of products related to the sec-ond group is the lack of complete information about their design diversity and frequency of application. To solve the prob-lem, it is proposed to consider the products of the second group in a modular representation, which allows all their diversity to be divided into two groups: functional technological modules (FTM) that ensure the performance of a product's function-al purpose and functional service modules (FSM) that ensure (FTM) functioning. On this basis, a systematic approach ap-plicable for specialized production management for products of the second group, is given It is shown that for the implemen-tation of the proposed system approach in the specialized production management for the products of the second group, it is necessary to build a database of two types: FTM database and the FSM database.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82392822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-14DOI: 10.30987/2223-4608-2023-35-42
Vyacheslav Bezyazychnyy, V. Evgeniya
The key place in the production of gas turbine engines, including gears, both aviation and marine, also power generation turbines, is given to sectional steels. Consequently, not just a physical nature of gear wheels manufacture plays an im-portant part, but formal characterization and the supply of physical and mechanical properties of materials are in the prior-ity, taking into account the reliability of the materials. The problem of technological support for the manufacture of gears for gas turbine engines is viewed with simultaneous analysis of the part material, its manufacturing technology and investi-gated inseparably from each other. The interrelation of working surfaces quality and technological and strength character-istics with respect to operational properties is developed. The instability of the mechanical properties of the structural ma-terial is investigated and their formation is justified on the basis of technological heredity in accordance with the techno-logical process of manufacturing a part to its material and purpose. The instability of physical and mechanical properties is clearly presented on the example of one steel grade, but with different methods of obtaining the workpiece and the material in as-received condition. The influence of heat treatment on the stabilization of the physical and mechanical properties of the material, taking into account the inheritance of properties, is studied. A model of the contact interaction of gears has been developed taking into account external and internal influences, both during preparation and under operation (materi-al properties, engagement forces, temperature field, etc.). The cumulative model, focused on the reaction of the structural material in machining and interaction in work, summarizes a functional use, physical and mechanical properties and fea-tures of behavior in operating conditions. The control of the operational properties of gears is presented in an inseparable connection with technology and their materials such as structural state and physical and mechanical properties.
{"title":"Engineering support for the manufacture of gears of aviation gas turbine engines providing for the instability of the physical and mechanical properties of their materials","authors":"Vyacheslav Bezyazychnyy, V. Evgeniya","doi":"10.30987/2223-4608-2023-35-42","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-35-42","url":null,"abstract":"The key place in the production of gas turbine engines, including gears, both aviation and marine, also power generation turbines, is given to sectional steels. Consequently, not just a physical nature of gear wheels manufacture plays an im-portant part, but formal characterization and the supply of physical and mechanical properties of materials are in the prior-ity, taking into account the reliability of the materials. The problem of technological support for the manufacture of gears for gas turbine engines is viewed with simultaneous analysis of the part material, its manufacturing technology and investi-gated inseparably from each other. The interrelation of working surfaces quality and technological and strength character-istics with respect to operational properties is developed. The instability of the mechanical properties of the structural ma-terial is investigated and their formation is justified on the basis of technological heredity in accordance with the techno-logical process of manufacturing a part to its material and purpose. The instability of physical and mechanical properties is clearly presented on the example of one steel grade, but with different methods of obtaining the workpiece and the material in as-received condition. The influence of heat treatment on the stabilization of the physical and mechanical properties of the material, taking into account the inheritance of properties, is studied. A model of the contact interaction of gears has been developed taking into account external and internal influences, both during preparation and under operation (materi-al properties, engagement forces, temperature field, etc.). The cumulative model, focused on the reaction of the structural material in machining and interaction in work, summarizes a functional use, physical and mechanical properties and fea-tures of behavior in operating conditions. The control of the operational properties of gears is presented in an inseparable connection with technology and their materials such as structural state and physical and mechanical properties.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82833018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-30DOI: 10.30987/2223-4608-2023-8-14
A. Malikov, A. Sidorkin, Y. Kovalev
Projection aspects of a combined cutting and deforming tool special design for studying the main characteristics of finish-ing gear-working of shaving-rolling cylindrical gear wheels. Large focus is given to the issues of shaping the main cutting elements of the tool and the possibility of its manufacture in the conditions of modern tool production. The necessity of using an integral tool design in the context of its operation in a manner similar to the turning process is substantiated.
{"title":"Peculiarities of tool design for physical modeling of shaving-rolling cylindrical gear-wheels","authors":"A. Malikov, A. Sidorkin, Y. Kovalev","doi":"10.30987/2223-4608-2023-8-14","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-8-14","url":null,"abstract":"Projection aspects of a combined cutting and deforming tool special design for studying the main characteristics of finish-ing gear-working of shaving-rolling cylindrical gear wheels. Large focus is given to the issues of shaping the main cutting elements of the tool and the possibility of its manufacture in the conditions of modern tool production. The necessity of using an integral tool design in the context of its operation in a manner similar to the turning process is substantiated.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77991267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-05-27DOI: 10.30987/2223-4608-2023-27-34
V. Smolentsev, M. Kondratiev, E. Smolentsev
The paper considers a major scientific and applied problem of improving the quality and reliability of scientific products by technological methods and means, forming the basis for the production of competitive products of domestic engineering, primarily in the aerospace industry. The analysis of the defect appearance causes in technology and the decrease in its reli-ability at the stages of product life cycle is carried out. Measures were identified to ensure established reliability while maintaining or increasing the resource with minimizing costs at the stage of commercializing by gradually increasing opera-tional characteristics underway product test. It is shown that combined methods of part process allow creating small-sized multilayer vibration-resistant filters with an increased area of the working area and a total wall thickness that ensures the stability of the product to repeated vibrations, which previously caused undesirable increase in the dimensions and mass of a manufactured product. The possibilities of using combined processing methods with the imposition of electromagnetic fields to improve the operational characteristics of upgraded and aircraft parts under formation, including their elements, in the expansion of mass production of scientific products, particularly developed for their import substitution, are found.The change in the mechanical characteristics of materials under various processing methods has been studied. Specimens test for strength at failure and stretch have shown that the consistent use of highly efficient electrochemical sizing followed by jackhammering (or other) way of hardening allows the increase in the characteristics of products up to 10%, achieving a result not lower than that obtained after tooling with hardening.
{"title":"Combined technologies for increasing the reliability and service life of aerospace products","authors":"V. Smolentsev, M. Kondratiev, E. Smolentsev","doi":"10.30987/2223-4608-2023-27-34","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-27-34","url":null,"abstract":"The paper considers a major scientific and applied problem of improving the quality and reliability of scientific products by technological methods and means, forming the basis for the production of competitive products of domestic engineering, primarily in the aerospace industry. The analysis of the defect appearance causes in technology and the decrease in its reli-ability at the stages of product life cycle is carried out. Measures were identified to ensure established reliability while maintaining or increasing the resource with minimizing costs at the stage of commercializing by gradually increasing opera-tional characteristics underway product test. It is shown that combined methods of part process allow creating small-sized multilayer vibration-resistant filters with an increased area of the working area and a total wall thickness that ensures the stability of the product to repeated vibrations, which previously caused undesirable increase in the dimensions and mass of a manufactured product. The possibilities of using combined processing methods with the imposition of electromagnetic fields to improve the operational characteristics of upgraded and aircraft parts under formation, including their elements, in the expansion of mass production of scientific products, particularly developed for their import substitution, are found.The change in the mechanical characteristics of materials under various processing methods has been studied. Specimens test for strength at failure and stretch have shown that the consistent use of highly efficient electrochemical sizing followed by jackhammering (or other) way of hardening allows the increase in the characteristics of products up to 10%, achieving a result not lower than that obtained after tooling with hardening.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"55 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74583722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-28DOI: 10.30987/2223-4608-2023-9-19
V. Makarov, Mihail Pesin, Makism Volkov
The efficiency of the application of a new technology for fir-tree slots treatment in turbine discs based on a combination of pre-slotting operations of the «house» by hydro-abrasive treatment (HAT) and final broaching of the herringbone on a CNC machine in comparison with milling, deep grinding and EDM-ing methods is viewed. Problems arising within manufacturing and operating of broaches often cause down-time of both types: main and tool production. At the same time, the set high growth rates of production of gas turbine engines are inevitably restrained, the costs of manufacturing sets of multi-section fir-tree broaches are significantly increasing. To solve the problem, various combined processing techniques are proposed for the application, i.e., the pre-slotting of the «house» of broaches is carried out by various productive cutting methods such as deep grinding, milling, EDM-ing and HAT, while finishing is carried out using finishing profile broaching tech-nique. The pre-liminary calculations of labor intensity and production costs carried out during comparative tests of various combined variants of pre-slotting have proved the advantages of HAT cutting. As a result of the experimental studies, conducted on slotting, using HAT technique with subsequent broaching under final form broach, it was found that channel profile of the preliminary slot with allowances, made for measured profile devi-ation, is in the tolerable limit before final shape of the final broaching, which bears evidence of the slot appropriateness made by HAT method and its readiness for final broaching. After herringbone final broaching an electronic control was conducted and it was found that all the main dimensions in the herringbones are within tolerance limits and are suitable according to technic specifications. It is proposed to carry out further experimental work on particular stock-produced tur-bine disks for making a decision on the introduction of a new technology into mass production.
{"title":"Increasing the efficiency of slotting deep fir trees in gas turbine discs made of heat-resistant alloys by applying a combined method of hydroabrasive treatment and broaching","authors":"V. Makarov, Mihail Pesin, Makism Volkov","doi":"10.30987/2223-4608-2023-9-19","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-9-19","url":null,"abstract":"The efficiency of the application of a new technology for fir-tree slots treatment in turbine discs based on a combination of pre-slotting operations of the «house» by hydro-abrasive treatment (HAT) and final broaching of the herringbone on a CNC machine in comparison with milling, deep grinding and EDM-ing methods is viewed. Problems arising within manufacturing and operating of broaches often cause down-time of both types: main and tool production. At the same time, the set high growth rates of production of gas turbine engines are inevitably restrained, the costs of manufacturing sets of multi-section fir-tree broaches are significantly increasing. To solve the problem, various combined processing techniques are proposed for the application, i.e., the pre-slotting of the «house» of broaches is carried out by various productive cutting methods such as deep grinding, milling, EDM-ing and HAT, while finishing is carried out using finishing profile broaching tech-nique. The pre-liminary calculations of labor intensity and production costs carried out during comparative tests of various combined variants of pre-slotting have proved the advantages of HAT cutting. \u0000As a result of the experimental studies, conducted on slotting, using HAT technique with subsequent broaching under final form broach, it was found that channel profile of the preliminary slot with allowances, made for measured profile devi-ation, is in the tolerable limit before final shape of the final broaching, which bears evidence of the slot appropriateness made by HAT method and its readiness for final broaching. After herringbone final broaching an electronic control was conducted and it was found that all the main dimensions in the herringbones are within tolerance limits and are suitable according to technic specifications. It is proposed to carry out further experimental work on particular stock-produced tur-bine disks for making a decision on the introduction of a new technology into mass production.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85313282","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-28DOI: 10.30987/2223-4608-2023-15-21
Yuliya Sherina, A. Luts, P. Kichaev, M. Bogatov, A. Amosov
The analysis of mechanical properties and corrosion resistance of industrial alloy AMg6 and composite material AMg6-10%TiC obtained by self-propagating high-temperature synthesis is carried out. It is shown that the existence of a carbide phase and subsequent heating up to 230 ℃ allows increasing the hardness by 17 % and maintaining a high corrosion re-sistance of the composite.
{"title":"The effect of reinforcement with a titanium carbide high-dispersity phase and subsequent heat treatment on the structure and properties of the AMg6 alloy","authors":"Yuliya Sherina, A. Luts, P. Kichaev, M. Bogatov, A. Amosov","doi":"10.30987/2223-4608-2023-15-21","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-15-21","url":null,"abstract":"The analysis of mechanical properties and corrosion resistance of industrial alloy AMg6 and composite material AMg6-10%TiC obtained by self-propagating high-temperature synthesis is carried out. It is shown that the existence of a carbide phase and subsequent heating up to 230 ℃ allows increasing the hardness by 17 % and maintaining a high corrosion re-sistance of the composite.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79050600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-28DOI: 10.30987/2223-4608-2023-33-39
V. Lebedev, Y. Torop, A. Kochetov, N. Koval
A design project for calibrating holes in parts, e.g. in hobs, discs, gear wheels, un-der conditions of ultrasonic effects application is suggested. Formula, providing a way for varying the value of the ultrasonic pulse pbr in a part is derived. It allows ensuring the required accuracy of the hole at lower pressures in the contact zone of a mandrel with the treated surface and, as a consequence, to reduce the magnitude of the traction force of the calibration process, which is especially important in hole-making operations for parts subjected to heat treatment.
{"title":"Impact assessment of ultrasonic vibrations on the stress state of the hole surface layer when treated by the calibration method","authors":"V. Lebedev, Y. Torop, A. Kochetov, N. Koval","doi":"10.30987/2223-4608-2023-33-39","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-33-39","url":null,"abstract":"A design project for calibrating holes in parts, e.g. in hobs, discs, gear wheels, un-der conditions of ultrasonic effects application is suggested. Formula, providing a way for varying the value of the ultrasonic pulse pbr in a part is derived. It allows ensuring the required accuracy of the hole at lower pressures in the contact zone of a mandrel with the treated surface and, as a consequence, to reduce the magnitude of the traction force of the calibration process, which is especially important in hole-making operations for parts subjected to heat treatment.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"62 1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88678605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-28DOI: 10.30987/2223-4608-2023-22-32
M. Soloviev, A. Raukhvarger, Sergey Baldaev, L. Baldaev, V. Mischenko
Research evidence of plasma parameters effect when spraying aluminum oxide powder, causing the porosity and electrical resistance of the coating is offered in the article. A mathematical model of the coating effect dependence on spray coating modes, e.g. plasmotron distance to underlay surface, current strength and hydrogen consumption is proposed. Positive cor-relation between the porosity and the electrical resistance of the coating is shown.
{"title":"Influence of conditions of plasma spraying of aluminum oxide powder on the porosity and electrical resistance of a coating","authors":"M. Soloviev, A. Raukhvarger, Sergey Baldaev, L. Baldaev, V. Mischenko","doi":"10.30987/2223-4608-2023-22-32","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-22-32","url":null,"abstract":"Research evidence of plasma parameters effect when spraying aluminum oxide powder, causing the porosity and electrical resistance of the coating is offered in the article. A mathematical model of the coating effect dependence on spray coating modes, e.g. plasmotron distance to underlay surface, current strength and hydrogen consumption is proposed. Positive cor-relation between the porosity and the electrical resistance of the coating is shown.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72914481","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-28DOI: 10.30987/2223-4608-2023-40-48
S. Sundukov
The present state research overviews on the use of ultrasonic vibrations in press joints. The main effect occurring in ultra-sonic activation for pressed parts is friction force break. The works investigating the effect of ultrasound on the friction of various materials, as well as the application of this effect in pressing are viewed in the article.
{"title":"Application of ultrasonic technologies in the production of press joints","authors":"S. Sundukov","doi":"10.30987/2223-4608-2023-40-48","DOIUrl":"https://doi.org/10.30987/2223-4608-2023-40-48","url":null,"abstract":"The present state research overviews on the use of ultrasonic vibrations in press joints. The main effect occurring in ultra-sonic activation for pressed parts is friction force break. The works investigating the effect of ultrasound on the friction of various materials, as well as the application of this effect in pressing are viewed in the article.","PeriodicalId":21570,"journal":{"name":"Science intensive technologies in mechanical engineering","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73020476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-04-17DOI: 10.30987/2223-4608-2023-28-37
S. Ivanov, Vadim Antoshin, D. Melnikov, A. Albagachiev
This article presents studies of the abrasive wear resistance of fiber-glass composite pipes inner surface, which are laid us-ing microtunneling technology under construction of drinking water pipes, irrigation and sewerage systems. Due to a very smooth inner surface, the pipes have a high coefficient of fluid flow speed transmission through the pipe and a low coeffi-cient of roughness. When in long-term operation, the movement of water and solid particles through the pipeline eventually causes wear of inner walls of the pipe. The study of data on abrasive wear and abrasive resistance of fiber-glass composite pipes allows calculating the pipeline's operability under controlled conditions, predicting the period of trouble-free opera-tion of pipelines and making a reasonable choice of material for pipeline manufacturing. The objects of the study of glass composite pipes samples were selected, manufactured by LLC «New Pipe Technologies» using the method of continuous winding with an inner layer based on: orthophthalic polyester, isophthalic polyester and vinyl ester resins. The assessment of the overall wear resistance of the inner surface of the pipes was fulfilled using test equipment according to the Darmstadt method (GOST R 55877-2013, method B). This method allows simulating the abrasion and wear of linings and pipes that may occur in real operating conditions. Crushed quartz was used as an abrasive material. According to the results of the research, the arithmetic mean values of wear and safety coefficients of fiber-glass composite pipes were deter-mined depending on the number of test cycles. The data were used to select the most promising material as a polymer matrix for the production of fiberglass pipes both for water supply and sewerage.
本文研究了应用微隧道技术敷设的玻璃纤维复合管道内表面的磨粒耐磨性。由于管道的内表面非常光滑，因此流体通过管道的流速系数很高，粗糙度系数很低。当长期运行时，水和固体颗粒在管道中的运动最终导致管道内壁的磨损。研究玻璃纤维复合材料管道的磨料磨损和耐磨性数据，可以计算管道在受控条件下的可操作性，预测管道的无故障运行周期，合理选择管道制造材料。玻璃复合管材样品的研究对象是由LLC«New Pipe Technologies»制造的，采用连续缠绕的方法，内层基于:邻苯二甲酸聚酯，间苯二甲酸聚酯和乙烯基酯树脂。根据Darmstadt方法(GOST R 55877-2013，方法B)，使用测试设备对管道内表面的整体耐磨性进行评估。该方法允许模拟在实际操作条件下可能发生的衬里和管道的磨损。破碎的石英被用作磨料。根据研究结果，确定了玻璃纤维复合材料管道磨损系数和安全系数随试验循环次数的算术平均值。这些数据被用来选择最有前途的材料作为聚合物基质，用于生产供水和污水的玻璃纤维管道。
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