METAL 2021 Conference Proeedings最新文献_第8页

IMPROVING THE QUALITY OF FRICTION WELDING BY SELECTED METHODS 通过选择方法提高摩擦焊质量

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4126

K. Czerwińska, R. Dwornicka, A. Pacana

{"title":"IMPROVING THE QUALITY OF FRICTION WELDING BY SELECTED METHODS","authors":"K. Czerwińska, R. Dwornicka, A. Pacana","doi":"10.37904/metal.2021.4126","DOIUrl":"https://doi.org/10.37904/metal.2021.4126","url":null,"abstract":"The study is aimed to identify the causes of piston incompatibilities in the friction welding area, as well as to reduce or eliminate the occurrence of non-compliance using quality management tools (Pareto-Lorenz diagram, 5W2H and 5Why method). Diagnostic tests were carried out with visual tests and quality control results were analyzed. The subject of the research was a steel piston for diesel trucks. The studies identified the most serious non-compliance - burnout of the combustion chamber and clarified its cause - the incorrect execution of the upper fork in the area of the combustion chamber due to the lack of supervision of workers. So far, the company has not analyzed quality problems using a sequential quality management methodology, so that the corrective actions implemented have not fully achieved the quality objectives. The sequential method used in the development, including diagnostic and control tests and quality management tools, is a universal way to monitor the quality level of products and quickly correct non-conformities. There are no implications for this methodology. It can be implemented in companies producing products that ensure an adequate level of quality.","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"46 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134599628","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}

引用次数: 0

EFFECT OF ROTARY SWAGING ON STRESS/STRAIN STATE WITHIN TUNGSTEN HEAVY ALLOY BAR 旋转锻压对钨重合金棒材应力应变状态的影响

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4113

Ludmila Krátká, S. Kiselev

引用次数: 0

DEVELOPMENT AND APPLICATION OF REMOVABLE VARNISH FOR WALL PROTECTION PAINT COATING BOOTHS 可拆卸式护墙漆涂布亭清漆的研制与应用

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4164

V. Boldyrev, V. Men’Shikov, A. Savina, N. Bogatov, F. Il’Darkhanova, Yana Seina

引用次数: 0

IMPROVement THE CAVITATION EROSION RESISTANCE OF Al-mg alloys BY TIG SURFACE REMELTING 采用TIG表面重熔提高Al-mg合金的抗空蚀性

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4238

Florin Franţ, I. Mitelea, I. Bordeasu, I. Uțu, C. Crăciunescu

引用次数: 0

Separation of the magnetic fraction from the slags originated during steel production 从炼钢过程中产生的炉渣中分离出磁性部分

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4092

K. Foniok, V. Matějka, P. Maierová, P. Matějková, J. Vlček

{"title":"Separation of the magnetic fraction from the slags originated during steel production","authors":"K. Foniok, V. Matějka, P. Maierová, P. Matějková, J. Vlček","doi":"10.37904/metal.2021.4092","DOIUrl":"https://doi.org/10.37904/metal.2021.4092","url":null,"abstract":"Metallurgical slags originating during pig iron and steel manufacturing, are valuable sources of the inorganic materials. The limitation of their recycling is usually connected to the expensive methods of the separation of the components. The steel furnace slags (FS) as well as ladle slags (LS) contains reasonable amount of iron bonded in different forms, predominantly in iron oxides. In this paper we are reporting the results of the dry and wet separation techniques used for the isolation of the magnetic fraction presented in FS and LS. The results obtained indicate the dry magnetic separation as not suitable for this purpose, while wet method was found to be promising. In this research the FS containing approx. 30 wt% of Fe 2 O 3 and LS containing approx. 17 wt% of Fe 2 O 3 were milled to the fraction less than 0.1 mm and then subjected to the process of dry and wet separation of the magnetic fraction. It was observed that the dry separation is not suitable, since 100 % of the materials were recovered showing the intensive homogenization of the magnetic fraction during the milling process. On the other hand, the wet separation led to the isolation of 26 and 30 wt% of magnetic fractions for FS and LS, respectively. The isolated magnetic fractions contained 41 and 40 wt% of Fe 2 O 3 in the case of the FS and LS, respectively. The fractions obtained during the separation were subjected to the chemical and phase analysis, the morphology of the particles was studied using scanning electron microscopy.","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114204706","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}

引用次数: 0

Thermochromic painting systems – A new approach to increase occupational safety 热致变色喷涂系统——提高职业安全的新途径

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4187

Zuzana Tatíčková, V. Kreibich, J. Kudláček, J. Svoboda

引用次数: 1

TESTING THE QUALITY OF PISTON CASTINGS ON THE MACHINING LINE 在机加工线上检测活塞铸件的质量

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4243

A. Krępa, J. Piątkowski

引用次数: 0

On methods for determining the specific heat capacity of steels 测定钢比热容的方法

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4089

Mario Machů, Ľ. Drozdová, B. Smetana

引用次数: 1

EXPERIMENTAL INVESTIGATION OF BENDING FATIGUE, bREAKING LOAD AND CORROSION PERFORMANCE OF STEEL WIRE ROPES WITH INDEPENDENT WIRE ROPE CORE(IWRC) AND IMPREGNATED PLASTIC CORE(EPIWRC) 独立钢丝绳芯(IWRC)和浸渍塑料钢丝绳芯(EPIWRC)钢丝绳弯曲疲劳、断裂载荷及腐蚀性能试验研究

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4145

Murat Polat, Rıza Köseler, İlbeyi Kilavuz

{"title":"EXPERIMENTAL INVESTIGATION OF BENDING FATIGUE, bREAKING LOAD AND CORROSION PERFORMANCE OF STEEL WIRE ROPES WITH INDEPENDENT WIRE ROPE CORE(IWRC) AND IMPREGNATED PLASTIC CORE(EPIWRC)","authors":"Murat Polat, Rıza Köseler, İlbeyi Kilavuz","doi":"10.37904/metal.2021.4145","DOIUrl":"https://doi.org/10.37904/metal.2021.4145","url":null,"abstract":"Steel wire ropes are lifting equipments used in many areas such as fishing, mining, oil&gas, construction and marine. Steel wire ropes, which stand out with their high lifting capacity and optimum elongation, can be produced in different properties and constructions. Steel wire ropes with impregnated plastic core are used in special cranes where high breaking load is required, in harbour cranes with corrosive effects and in the mining industry where there is pollution. These ropes are generally preferred with a diameter of 16-56 mm and can be produced as 6 stranded, 8 stranded and multiple stranded (i.e 34 x 7, 35 x 7, 40 x 7 etc.). Multiple stranded ropes are characterized as rotational resistant and are preferred in high-level applications. In this study; the bending fatigue, breaking load and corrosion performance of steel wire ropes with impregnated plastic core(EPIWRC) was investigated. The tensile tests, corrosion tests and bending fatigue tests of the rope with 8 x 26WS construction used in the study were performed and the parameters affecting the fatigue life of the ropes were determined. As a result of the tensile tests, it was determined that the steel wire ropes with impregnated plastic core have 10 % higher breaking load than the steel wire ropes with independent wire rope core. It has been observed that the plastic coating significantly protects the steel core of the rope from corrosion and friction and reduces wire breakage. It has been determined that the decrease in the number of wire breakages and the minimization of the friction contacts increase the fatigue life of the rope. This study includes experimental data on steel wire ropes.","PeriodicalId":266696,"journal":{"name":"METAL 2021 Conference Proeedings","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124484860","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}

引用次数: 0

Study of growth kinetics of intermetallic phases in Cu-Sn solder joints under the conditions of reactive diffusion 反应扩散条件下Cu-Sn焊点金属间相生长动力学研究

METAL 2021 Conference Proeedings Pub Date : 1900-01-01 DOI: 10.37904/metal.2021.4250

J. Drápala, G. Kostiuková, H. Francová, M. Losertová, P. Kubíček

引用次数: 0