Pub Date : 2022-05-01DOI: 10.31044/1684-2561-2022-0-5-16-21
E. Kosenko, K.S. Klimova
Polymer composite materials (PCM) have found the wide application in the production of products for various purposes. Elastic elements of machines, in particular springs, operate under conditions of alternating loads, resulting in their fatigue failure and a failure of a technical system as a whole. PCMs based on fibrous fillers are materials with considerable internal friction, which ensures energy dissipation and damping free vibrations. The use of such materials in the production of elastic elements of machines will allow one not only to increase the durability of products, but also to realize the possibility of switching to small-leaf or single-leaf springs, as well as to reduce their weight. However, the production of springs from PCM is associated with a number of difficulties, which include: the choice of the composition and the properties of PCM components, as well as the scheme of its reinforcement, the methods of molding, curing and subsequent processing. In addition, at present, methods for calculating profiled composite elements with complex fiber placement trajectories are insufficiently developed. Therefore, the solution of these problems is an urgent problem of great scientific and practical importance. The analyses results of the properties of materials of PCM components for the production of springs, the methods of production of them and subsequent processing are presented. The significant factors influencing the durability of elastic elements of machines have been determined.
{"title":"Application of polymer composite materials for production of springs of vehicles (review)","authors":"E. Kosenko, K.S. Klimova","doi":"10.31044/1684-2561-2022-0-5-16-21","DOIUrl":"https://doi.org/10.31044/1684-2561-2022-0-5-16-21","url":null,"abstract":"Polymer composite materials (PCM) have found the wide application in the production of products for various purposes. Elastic elements of machines, in particular springs, operate under conditions of alternating loads, resulting in their fatigue failure and a failure of a technical system as a whole. PCMs based on fibrous fillers are materials with considerable internal friction, which ensures energy dissipation and damping free vibrations. The use of such materials in the production of elastic elements of machines will allow one not only to increase the durability of products, but also to realize the possibility of switching to small-leaf or single-leaf springs, as well as to reduce their weight. However, the production of springs from PCM is associated with a number of difficulties, which include: the choice of the composition and the properties of PCM components, as well as the scheme of its reinforcement, the methods of molding, curing and subsequent processing. In addition, at present, methods for calculating profiled composite elements with complex fiber placement trajectories are insufficiently developed. Therefore, the solution of these problems is an urgent problem of great scientific and practical importance. The analyses results of the properties of materials of PCM components for the production of springs, the methods of production of them and subsequent processing are presented. The significant factors influencing the durability of elastic elements of machines have been determined.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"4 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114028098","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 : 2022-05-01DOI: 10.31044/1684-2561-2022-0-5-22-25
V. Lysak
The most widespread types of conservation compositions (corrosion inhibitor, wax, polish for chromium, and universal plastic lubricant) used to ensure seasonal equipment storage have been analyzed and their antistatic properties have been determined. It was found out that the use only conservation compositions with the best antistatic properties allowed one to achieve the maximum possible service life after deconservation with minimal work and material costs.
{"title":"Evaluation of antistatic properties of compositions used for equipment conservation","authors":"V. Lysak","doi":"10.31044/1684-2561-2022-0-5-22-25","DOIUrl":"https://doi.org/10.31044/1684-2561-2022-0-5-22-25","url":null,"abstract":"The most widespread types of conservation compositions (corrosion inhibitor, wax, polish for chromium, and universal plastic lubricant) used to ensure seasonal equipment storage have been analyzed and their antistatic properties have been determined. It was found out that the use only conservation compositions with the best antistatic properties allowed one to achieve the maximum possible service life after deconservation with minimal work and material costs.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115450831","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 : 2022-04-01DOI: 10.31044/1684-2561-2022-0-4-44-48
T.N. Egunva
The composition and production features of specimens of an epoxy-sand composite used for repair of road-building machines have been examined. The results of the effect determination of corrosive environments on the properties and the structure of the epoxy-sand composite are presented. It is shown that the structure and the properties of the material considerably depend on the concentration of disperse particles. It was found out that a decrease in the filler concentration ensured the best resistance of epoxy-sand composites to the effect of corrosive environments.
{"title":"Study of epoxy-sand composite resistance to effect of corrosive environments","authors":"T.N. Egunva","doi":"10.31044/1684-2561-2022-0-4-44-48","DOIUrl":"https://doi.org/10.31044/1684-2561-2022-0-4-44-48","url":null,"abstract":"The composition and production features of specimens of an epoxy-sand composite used for repair of road-building machines have been examined. The results of the effect determination of corrosive environments on the properties and the structure of the epoxy-sand composite are presented. It is shown that the structure and the properties of the material considerably depend on the concentration of disperse particles. It was found out that a decrease in the filler concentration ensured the best resistance of epoxy-sand composites to the effect of corrosive environments.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114503000","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 : 2021-12-01DOI: 10.31044/1684-2561-2021-0-12-13-16
E. Kosenko, D. K. Zakorsky, A. Du, N. K. Podchuvalova
The chemical and mechanical methods of preparing metal surfaces before gluing have been examined. The strength test results for shear of adhesive bonds of aluminum and steel samples, the surfaces of which were prepared by grinding, shot-blasting with copper slag and chemical treatment in aqueous solutions of acids before gluing. The best results for shear strength of adhesive bonds are observed for samples whose surfaces were subjected to shot blasting with a copper slag, the worst ones are after chemical method of preparing in aqueous solutions of acids.
{"title":"Preparation features of metal surfaces of machine parts before gluing","authors":"E. Kosenko, D. K. Zakorsky, A. Du, N. K. Podchuvalova","doi":"10.31044/1684-2561-2021-0-12-13-16","DOIUrl":"https://doi.org/10.31044/1684-2561-2021-0-12-13-16","url":null,"abstract":"The chemical and mechanical methods of preparing metal surfaces before gluing have been examined. The strength test results for shear of adhesive bonds of aluminum and steel samples, the surfaces of which were prepared by grinding, shot-blasting with copper slag and chemical treatment in aqueous solutions of acids before gluing. The best results for shear strength of adhesive bonds are observed for samples whose surfaces were subjected to shot blasting with a copper slag, the worst ones are after chemical method of preparing in aqueous solutions of acids.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115164132","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 : 2021-12-01DOI: 10.31044/1684-2561-2021-0-12-42-44
I. Nefelov, M. V. Kozina
To produce a quality product, in the process of 3D-printing it is necessary to ensure high adhesion between material and the surface of a 3D-printer table. The main methods of table surface preparation, used materials, and the field of their application are considered. The further study direction is formulated to determine the optimal parameters of preparation for printing.
{"title":"Review of materials for preparation of printing table surface of 3D-printer for printing","authors":"I. Nefelov, M. V. Kozina","doi":"10.31044/1684-2561-2021-0-12-42-44","DOIUrl":"https://doi.org/10.31044/1684-2561-2021-0-12-42-44","url":null,"abstract":"To produce a quality product, in the process of 3D-printing it is necessary to ensure high adhesion between material and the surface of a 3D-printer table. The main methods of table surface preparation, used materials, and the field of their application are considered. The further study direction is formulated to determine the optimal parameters of preparation for printing.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125096895","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 : 2021-12-01DOI: 10.31044/1684-2561-2021-0-12-9-12
P. A. Ruzankin
Features of the operation and typical damages of standard hydraulic systems’ elements of road-building machines have been analyzed. The occurrence reasons of defects and the elimination ways of them were determined. Methods for eliminating the defects were analyzed, and it is shown that one of the most promising methods for eliminating the defects in liners of hydraulic cylinders and hydraulic lines is the use of polymer composite materials with a fibrous or dispersed filler for the repair.
{"title":"Repair technology features of main elements of road-building machines’ hydraulic system with use of polymer composite materials","authors":"P. A. Ruzankin","doi":"10.31044/1684-2561-2021-0-12-9-12","DOIUrl":"https://doi.org/10.31044/1684-2561-2021-0-12-9-12","url":null,"abstract":"Features of the operation and typical damages of standard hydraulic systems’ elements of road-building machines have been analyzed. The occurrence reasons of defects and the elimination ways of them were determined. Methods for eliminating the defects were analyzed, and it is shown that one of the most promising methods for eliminating the defects in liners of hydraulic cylinders and hydraulic lines is the use of polymer composite materials with a fibrous or dispersed filler for the repair.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126690276","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 : 2021-11-01DOI: 10.31044/1684-2561-2021-0-11-46-48
N. Mazukha
A variant of the electrical circuit for powering the pump motor that supplies water to poultry and livestock farms when one of the feeding phases of the network disappears is proposed.
提出了一种电路的变体，当网络的一个喂养阶段消失时，为向家禽和牲畜农场供水的泵电机供电。
{"title":"Electric drive protection scheme for more reliable water supply in poultry and animal husbandry","authors":"N. Mazukha","doi":"10.31044/1684-2561-2021-0-11-46-48","DOIUrl":"https://doi.org/10.31044/1684-2561-2021-0-11-46-48","url":null,"abstract":"A variant of the electrical circuit for powering the pump motor that supplies water to poultry and livestock farms when one of the feeding phases of the network disappears is proposed.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116718040","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 : 2021-08-01DOI: 10.31044/1684-2561-2021-0-8-30-35
I. Nefelov, Moscow Automobile, A. Konoplin, A. Filipenko
It is shown that due to peculiarities of the production process of polymer material parts using methods of additive technologies, it is required to carry out post-processing of the surface of the products. The main methods of post-processing, the influence of modes on the properties of the surface and material of the part are considered. The optimal modes and methods of post-processing of parts made of ABS-plastic by FDM-printing methods are shown.
{"title":"Influence study of post-processing modes on surface properties of parts made with use of additive technologies","authors":"I. Nefelov, Moscow Automobile, A. Konoplin, A. Filipenko","doi":"10.31044/1684-2561-2021-0-8-30-35","DOIUrl":"https://doi.org/10.31044/1684-2561-2021-0-8-30-35","url":null,"abstract":"It is shown that due to peculiarities of the production process of polymer material parts using methods of additive technologies, it is required to carry out post-processing of the surface of the products. The main methods of post-processing, the influence of modes on the properties of the surface and material of the part are considered. The optimal modes and methods of post-processing of parts made of ABS-plastic by FDM-printing methods are shown.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"122 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128151615","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 : 2021-07-01DOI: 10.31044/1684-2561-2021-0-7-30-35
E. Kosenko, Moscow Automobile, R. Nigmetzyanov, V. Kostrykin
In production and repair of mechanical engineering products, poor preparation of surfaces for gluing leads to a decrease in adhesion or even to the destruction of the adhesive bond. The level of strength of the adhesive bond is determined not only by the absence of contamination on the surfaces to be bonded, but also largely depends on the type of materials to be bonded, the properties of the adhesive used and the geometric parameters of the surface. The analysis results of the quality and roughness of aluminum and steel surfaces obtained by various methods of machining are discussed. The shear test results for adhesive joints are presented. The tests were carried out on adhesive joints of aluminum and steel substrates, the surfaces of which were treated with sanding belts with grit sizes P40, P80 and P120 before gluing. A metal-filled adhesive compound based on epoxy resin with the addition of 3% aluminum powder (by weight) was used as the glue. The character of destruction of the studied adhesive joints is described. Recommendations on method srelection for machining aluminum and steel materials before gluing are presented.
{"title":"Selection substantiation of mechanical treatment method of machine part surfaces to be glued with metal-filled adhesive compounds","authors":"E. Kosenko, Moscow Automobile, R. Nigmetzyanov, V. Kostrykin","doi":"10.31044/1684-2561-2021-0-7-30-35","DOIUrl":"https://doi.org/10.31044/1684-2561-2021-0-7-30-35","url":null,"abstract":"In production and repair of mechanical engineering products, poor preparation of surfaces for gluing leads to a decrease in adhesion or even to the destruction of the adhesive bond. The level of strength of the adhesive bond is determined not only by the absence of contamination on the surfaces to be bonded, but also largely depends on the type of materials to be bonded, the properties of the adhesive used and the geometric parameters of the surface. The analysis results of the quality and roughness of aluminum and steel surfaces obtained by various methods of machining are discussed. The shear test results for adhesive joints are presented. The tests were carried out on adhesive joints of aluminum and steel substrates, the surfaces of which were treated with sanding belts with grit sizes P40, P80 and P120 before gluing. A metal-filled adhesive compound based on epoxy resin with the addition of 3% aluminum powder (by weight) was used as the glue. The character of destruction of the studied adhesive joints is described. Recommendations on method srelection for machining aluminum and steel materials before gluing are presented.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116023983","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 : 2021-07-01DOI: 10.31044/1684-2561-2021-0-7-20-23
Kh. V. Gagiev, Moscow Automobile, A. Konoplin
The experimental test results for damage of specimens produced with the use of performs based on glass and aramid fibers are presented. Three types of bonding the polymer and metal parts of the specimens were examined. It has been found out that the best results were for the specimens based of glass fibers. In case of addition of layers of aramid fibers in the performs, strength decreased.
{"title":"Improvement of technological methods for production of polymer composite material components, using preforms","authors":"Kh. V. Gagiev, Moscow Automobile, A. Konoplin","doi":"10.31044/1684-2561-2021-0-7-20-23","DOIUrl":"https://doi.org/10.31044/1684-2561-2021-0-7-20-23","url":null,"abstract":"The experimental test results for damage of specimens produced with the use of performs based on glass and aramid fibers are presented. Three types of bonding the polymer and metal parts of the specimens were examined. It has been found out that the best results were for the specimens based of glass fibers. In case of addition of layers of aramid fibers in the performs, strength decreased.","PeriodicalId":292405,"journal":{"name":"Repair, Reconditioning, Modernization","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122376629","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：