scholarly journals Trend and current situation of aluminum material development for the heat exchangers in automotive industry

2006 ◽  
Vol 56 (4) ◽  
pp. 240-246
Author(s):  
Keiichi Okazaki ◽  
Yasuaki Isobe
2012 ◽  
pp. 371-376
Author(s):  
Marek Nowak ◽  
Mieczysław Opyrchał ◽  
Andrzej Kłyszewski ◽  
Janusz Żelechowski

2014 ◽  
Vol 952 ◽  
pp. 145-148
Author(s):  
Chao Zhang ◽  
Xiao Jun Zhu ◽  
Lin Guo ◽  
Ren Ping Xu

According to the traditional decorative materials of Guizhou Shui Nationality traditional costumes as the starting point, this paper explores the effect of traditional dress decoration materials faced by the current situation as well as new decorative materials development and application of the traditional culture, the conflict and decorations visual effect. Therefore, proposed in the new environment of market economy, it is necessary to make the development and application of dress traditional materials in order to meet the ever-changing market demand, and also to the protection and inheritance of traditional techniques and characteristics of the Shui Nationality decoration visual aesthetic of art and decoration materials contained in the folk culture. The purpose is to express its application value for the diversified development of world culture and art.


2014 ◽  
Vol 59 (1) ◽  
pp. 393-396 ◽  
Author(s):  
A. Kłyszewski ◽  
J. Żelechowski ◽  
A. Frontczak ◽  
P. Rutecki ◽  
W. Szymanski ◽  
...  

Abstract Clad aluminium strips are used in the automotive industry to manufacture parts of heat exchangers. They are characterised by favourable strength properties, good corrosion resistance and susceptibility to plastic deformation, and can undergo surface brazing at a temperature of about 600°C. As a result of studies, the properties of alloys for the production of clad strips have been optimised. Optimising covered the alloy chemical composition and selected parameters such as the metal condition, the mechanical properties and anti-corrosion behaviour, including the methods for corrosion potential equalisation and sacrificial protection. The obtained technological results of the clad aluminium strip production were verified under the industrial conditions of Impexmetal Huta Aluminium Konin S.A. In a laboratory of the Institute of Non-Ferrous Metals (IMN), the clad strips were tested for the pre-assumed functional properties. Mechanical properties were tested, and the structure and corrosion behaviour were characterised. The reactivity of the clad layer was analysed under different technological conditions. The thermal bond produced by these clad layers was tested by simulation of the heat exchanger manufacturing process. As a result of the conducted research it has been found that all the essential characteristics of the clad strips produced under domestic conditions are in no way different from the properties of imported strips, while modification of the alloy chemical composition has contributed to the effective sacrificial protection of heat exchangers made from these strips. Clad aluminium strips are now successfully produced by the domestic aluminium industry. The improvement of materials used for the heat exchangers can contribute to the reduced overall dimensions of these products and increased efficiency, thus leading to energy savings. The results were obtained within the framework of the Task No. ZPB/38/66716/IT2/10 executed as part of the „IniTech” Project.


2021 ◽  
Vol 2083 (3) ◽  
pp. 032085
Author(s):  
Jiabao Ren ◽  
Xuefeng Liu ◽  
Chaoqian Wang ◽  
Lei Wang

Abstract China has submitted an application to join the Kigali amendment to the Montreal Protocol. As the second largest hydrofluorocarbons (HFCs) consumer industry in China, the automotive industry is facing enormous pressure to reduce HFCs. This paper analyzes the current situation of HFCs use in the domestic automotive industry, and makes a simulation prediction of HFCs use data in the automotive industry from 2024 to 2030, analyze and evaluate the advantages and disadvantages of different technical routes. The relevant contents of this paper will provide reference for the formulation of HFCs reduction policy.


2020 ◽  
Vol 92 (4) ◽  
pp. 7-14
Author(s):  
Zbigniew Mirski ◽  
Jarosław Pabian ◽  
Tomasz Wojdat ◽  
Jan Hejna

The paper presents the influence of the brazing gap width on the structure of bonded joints during the production of aluminum heat exchangers, using brazing technology, in tunnel furnaces with controlled atmosphere. Based on the wedge test, an analysis and qualitative assessment of brazed joints was made for the changing width of the brazing gap and the filler metal used. For the received brazed joints, metallographic tests were carried out using light and electron microscopy (SEM) and microhardness measurements in the characteristic areas of brazed joints. Based on the results obtained, the recommended width of the brazing gap was determined.


2014 ◽  
Vol 513-517 ◽  
pp. 2244-2247
Author(s):  
Zhen Bai ◽  
Zhi Guo Zhang

The development of modern volleyball sports has become much more closely connected to the application of computers, and computer has been widely used in many aspects including sports training, game statistics, sports meeting organization and management, and sports teaching. Having searched the sports research documents in last 20 years, I found that the application of computers research started early among sports staffs in China. And the research content is composed of computer software development of game statistics, CAI course material development based on WEB in colleges, CAT software development of students sports result in colleges, sports statistics software development based on VB, sports meeting items arrangement and management software development, and remote network visit technology in sports meetings in colleges. However, the software developed is comparably low in quantities and quality, especially not popular in practical application. This condition has restricted the development of volleyball to a certain extent.


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