Theoretical and experimental research of hot rolling of aluminum strips for solar collector
The article investigates the process of rolling aluminum strips with aluminum wire inside for the solar collector components. The closure of coal mines, the constant rise in the cost of oil and gas compel to refer to the methods for producing renewable (alternative) energy. An urgent problem is t...
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Інститут геотехнічної механіки імені М.С. Полякова НАН України
2016
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| Cite this: | Theoretical and experimental research of hot rolling of aluminum strips for solar collector / A.S. Makeeva, O.S. Kuzmenko, O.A. Remez, Ya.V. Frolov, I. Uwarow, O.Yu. Gridin // Геотехнічна механіка: Міжвід. зб. наук. праць. — Дніпропетровск: ІГТМ НАНУ, 2016. — Вип. 128. — С. 149-157. — Бібліогр.: 6 назв. — англ. |
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irk-123456789-1377952018-06-19T03:03:24Z Theoretical and experimental research of hot rolling of aluminum strips for solar collector Makeeva, A.S. Kuzmenko, O.S. Remez, O.A. Frolov, Ya.V. Uwarow, I. Gridin, O.Yu. The article investigates the process of rolling aluminum strips with aluminum wire inside for the solar collector components. The closure of coal mines, the constant rise in the cost of oil and gas compel to refer to the methods for producing renewable (alternative) energy. An urgent problem is the enhancement of solar manufacturing technologies in order to improve the quality and reduce the cost of products. The article presents the results of experimental and theoretical studies of the hot rolling process of aluminum strips with aluminum wire between them for internal collector channels. The velocity fields were researched; dependence on the rolling load changes for different degrees of deformation was obtained. It was found that for obtaining high-quality welding strips with wire between them the degree of deformation should be more than 35%. The comparison of the dependencies obtained experimentally and with the theoretical calculations was carried out, which showed a high degree of similarity. The comparison of the dependences obtained experimentally with the theoretical calculations was carried out, which showed a high degree of reproducibility, repeatability and similarity. Scientific novelty of the research lies in the parameters justification of hot rolling process of two aluminum strips with aluminum wire between them for partial welding of aluminum strips. These results can be used in industrial processes for the parts production of solar collectors in alternative energy. This study was supported by German Academic Exchange Service (DAAD) in the framework of German-Ukrainian project «Praxispartnershaft Metalurgie». Стаття присвячена дослідженню технологічного процесу прокатки алюмінієвих штаб з алюмінієвою проволокою всередині для отримання деталей сонячного колектору. Зачинення вугільних шахт, постійне зростання вартості нафтопродуктів та газу змушує звертатися до способів отримання відновлюваної (альтернативної) енергії. Актуальної є проблема вдосконалення технології виготовлення сонячних колекторів з метою покращення якості та зменшення вартості виробу. У статті наведені результати експериментальних та теоретичних досліджень процесу гарячої прокатки алюмінієвих штаб с алюмінієвою проволокою між ними для отримання внутрішніх каналів колектору. Досліджено поле швидкостей, отримані залежності зміни сили прокатки для різних ступеней деформації. Встановлено, що для отримання якісного зварювання штаб з проволокою між ними, ступінь деформації повинна бути не менше 35%. Виконано порівняння залежностей, отриманих експериментально, з теоретичними розрахунками, що показали високий ступінь збіжності результатів. Наукова новизна досліджень полягає в обґрунтуванні параметрів процесу гарячої прокатки двох алюмінієвих полос з алюмінієвою проволокою всередині для парціального, часткового зварювання алюмінієвих штаб. Представлені результати можуть біти використані в технологічних процесах отримання деталей сонячних колекторів в альтернативній енергетиці. Дослідження, результати яких приведені в даній статті, виконані в межах сучасного спільного німецько- українського проекту «Praxispartnershaft Metalurgie», який фінансується німецьким товариством академічних обмінів DAAD. Статья посвящена исследованию технологического процесса прокатки алюминиевых полос с алюминиевой проволокой внутри для получения деталей солнечного коллектора. Закрытие угольных шахт, постоянный рост стоимости нефтепродуктов и газа вынуждает обращаться к способам получения возобновляемой (альтернативной) энергии. Актуальной является проблема совершенствования технологий изготовления солнечных коллекторов с целью улучшения качества и уменьшения стоимости изделий. В статье приведены результаты экспериментальных и теоретических исследований процесса горячей прокатки алюминиевых полос с алюминиевой проволокой между ними для получения внутренних каналов коллектора. Исследовано поле скоростей, получены зависимости изменения силы прокатки для различных степеней деформации. Установлено, что для получения качественного сваривания полос с проволокой между ними степень деформации должна быть не менее 35 %. Выполнено сравнение зависимостей, полученных экспериментально, с теоретическими расчетами, показавшее высокую степень сходимости результатов. Научная новизна исследований заключается в обосновании параметров процесса горячей прокатки двух алюминиевых полос с алюминиевой проволокой внутри для парциального, частичного сваривания алюминиевых полос. Приведенные результаты могут быть использованы в технологических процессах получения деталей солнечных коллекторов в альтернативной энергетике. Исследования, результаты которых приведены в данной статье, выполнены в рамках совместного немецко-украинского проекта «Praxispartnershaft Metalurgie», финансируемого немецким обществом академических обменов DAAD. 2016 Article Theoretical and experimental research of hot rolling of aluminum strips for solar collector / A.S. Makeeva, O.S. Kuzmenko, O.A. Remez, Ya.V. Frolov, I. Uwarow, O.Yu. Gridin // Геотехнічна механіка: Міжвід. зб. наук. праць. — Дніпропетровск: ІГТМ НАНУ, 2016. — Вип. 128. — С. 149-157. — Бібліогр.: 6 назв. — англ. 1607-4556 http://dspace.nbuv.gov.ua/handle/123456789/137795 669.716:621.77.016.2:539.388.22 en Геотехнічна механіка Інститут геотехнічної механіки імені М.С. Полякова НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
The article investigates the process of rolling aluminum strips with aluminum wire
inside for the solar collector components. The closure of coal mines, the constant rise in the cost of
oil and gas compel to refer to the methods for producing renewable (alternative) energy. An urgent
problem is the enhancement of solar manufacturing technologies in order to improve the quality and
reduce the cost of products. The article presents the results of experimental and theoretical studies
of the hot rolling process of aluminum strips with aluminum wire between them for internal collector
channels. The velocity fields were researched; dependence on the rolling load changes for different
degrees of deformation was obtained. It was found that for obtaining high-quality welding strips with wire between them the degree
of deformation should be more than 35%. The comparison of the dependencies obtained experimentally
and with the theoretical calculations was carried out, which showed a high degree of similarity.
The comparison of the dependences obtained experimentally with the theoretical calculations was
carried out, which showed a high degree of reproducibility, repeatability and similarity. Scientific
novelty of the research lies in the parameters justification of hot rolling process of two aluminum
strips with aluminum wire between them for partial welding of aluminum strips. These results can
be used in industrial processes for the parts production of solar collectors in alternative energy. This
study was supported by German Academic Exchange Service (DAAD) in the framework of German-Ukrainian
project «Praxispartnershaft Metalurgie». |
| format |
Article |
| author |
Makeeva, A.S. Kuzmenko, O.S. Remez, O.A. Frolov, Ya.V. Uwarow, I. Gridin, O.Yu. |
| spellingShingle |
Makeeva, A.S. Kuzmenko, O.S. Remez, O.A. Frolov, Ya.V. Uwarow, I. Gridin, O.Yu. Theoretical and experimental research of hot rolling of aluminum strips for solar collector Геотехнічна механіка |
| author_facet |
Makeeva, A.S. Kuzmenko, O.S. Remez, O.A. Frolov, Ya.V. Uwarow, I. Gridin, O.Yu. |
| author_sort |
Makeeva, A.S. |
| title |
Theoretical and experimental research of hot rolling of aluminum strips for solar collector |
| title_short |
Theoretical and experimental research of hot rolling of aluminum strips for solar collector |
| title_full |
Theoretical and experimental research of hot rolling of aluminum strips for solar collector |
| title_fullStr |
Theoretical and experimental research of hot rolling of aluminum strips for solar collector |
| title_full_unstemmed |
Theoretical and experimental research of hot rolling of aluminum strips for solar collector |
| title_sort |
theoretical and experimental research of hot rolling of aluminum strips for solar collector |
| publisher |
Інститут геотехнічної механіки імені М.С. Полякова НАН України |
| publishDate |
2016 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/137795 |
| citation_txt |
Theoretical and experimental research of hot rolling of aluminum strips for solar collector / A.S. Makeeva, O.S. Kuzmenko, O.A. Remez, Ya.V. Frolov, I. Uwarow, O.Yu. Gridin // Геотехнічна механіка: Міжвід. зб. наук. праць. — Дніпропетровск: ІГТМ НАНУ, 2016. — Вип. 128. — С. 149-157. — Бібліогр.: 6 назв. — англ. |
| series |
Геотехнічна механіка |
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2025-07-10T04:29:31Z |
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2025-07-10T04:29:31Z |
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| fulltext |
ISSN 1607-4556 (Print), ISSN 2309-6004 (Online) Геотехнічна механіка. 2016. № 128
149
UDC 669.716:621.77.016.2:539.388.22
Makeeva A.S., Doctoral Student,
Kuzmenko O.S., Student,
Remez O.A., Ph.D. (Tech.), Assistant Professor,
Frolov Ya.V., D.Sc. (Tech.), Professor
(NMetAU)
Uwarow I., Student,
Gridin O.Yu., D.Sc. (Tech.), Professor
(University of Paderborn, Germany)
THEORETICAL AND EXPERIMENTAL RESEARCH OF HOT ROLLING
OF ALUMINUM STRIPS FOR SOLAR COLLECTOR
Макеєва Г.С., аспірант,
Кузменко О.С., студент,
Ремез О.А., канд. техн. наук, доцент,
Фролов Я.В., д-р техн. наук, професор
(НМетАУ)
Уваров І., студент,
Гридін О.Ю., д-р техн. наук, професор
(Університет м. Падерборн, ФРН)
ТЕОРЕТИЧНЕ ТА ЕКСПЕРИМЕНТАЛЬНЕ ДОСЛІДЖЕННЯ ГАРЯЧОЇ
ПРОКАТКИ АЛЮМІНІЄВИХ СМУГ ДЛЯ ОТРИМАННЯ СОНЯЧНОГО
КОЛЕКТОРА
Макеева А.С., аспирант,
Кузменко А.С., студент,
Ремез О.А., канд. техн. наук, доцент,
Фролов Я.В., д-р техн. наук, профессор
(НМетАУ)
Уваров И., студент,
Гридин А.Ю., д-р техн. наук, профессор
(Университет г. Падерборн, ФРГ)
ТЕОРЕТИЧЕСКОЕ И ЭКСПЕРИМЕНТАЛЬНОЕ ИССЛЕДОВАНИЕ ГО-
РЯЧЕЙ ПРОКАТКИ АЛЮМИНИЕВЫХ ПОЛОС ДЛЯ ПОЛУЧЕНИЯ
СОЛНЕЧНОГО КОЛЛЕКТОРА
Abstract. The article investigates the process of rolling aluminum strips with aluminum wire
inside for the solar collector components. The closure of coal mines, the constant rise in the cost of
oil and gas compel to refer to the methods for producing renewable (alternative) energy. An urgent
problem is the enhancement of solar manufacturing technologies in order to improve the quality and
reduce the cost of products. The article presents the results of experimental and theoretical studies
of the hot rolling process of aluminum strips with aluminum wire between them for internal collec-
tor channels. The velocity fields were researched; dependence on the rolling load changes for dif-
ferent degrees of deformation was obtained.
© А.С. Макеева, А.С. Кузменко, О.А. Ремез, Я.В. Фролов, И. Уваров, А.Ю. Гридин, 2016
ISSN 1607-4556 (Print), ISSN 2309-6004 (Online) Геотехнічна механіка. 2016. № 128
150
It was found that for obtaining high-quality welding strips with wire between them the degree
of deformation should be more than 35%. The comparison of the dependencies obtained experimen-
tally and with the theoretical calculations was carried out, which showed a high degree of similarity.
The comparison of the dependences obtained experimentally with the theoretical calculations was
carried out, which showed a high degree of reproducibility, repeatability and similarity. Scientific
novelty of the research lies in the parameters justification of hot rolling process of two aluminum
strips with aluminum wire between them for partial welding of aluminum strips. These results can
be used in industrial processes for the parts production of solar collectors in alternative energy. This
study was supported by German Academic Exchange Service (DAAD) in the framework of Ger-
man-Ukrainian project «Praxispartnershaft Metalurgie».
Keywords: hot rolling, the aluminum strips, internal channels, the degree of deformation.
Introduction
In recent years, the closure of coal mines, the constant rise of the cost of oil and
gas compel to pay attention to the methods for producing so-called renewable (alter-
native) energy, which undoubtedly will soon need to gain energy independence and
compensate the lack of conventional fuels. The main advantages of these technolo-
gies are the absolute environmental friendliness, ease of use, long operating systems,
minimal service and maintenance. Using renewable energy sources, we have a signif-
icant effect on the environment and energy crisis in the world, as well as we get inde-
pendent of traditional forms of energy, significant cost savings and confidence in the
future. One of the main sources of energy for this type of systems is the sun energy.
The use of sun energy in our country has a special place, because climatic condi-
tions especially in south of Ukraine allow to use all year round effectively solar sys-
tem, which based on solar collectors for autonomous hot water and heating. Solar
systems are equipment for heating water, which include solar collectors. The technol-
ogy of collectors’ production is constantly evolving and developing in order to im-
prove the quality and reduce the cost of products. One of the main step of this tech-
nology is partial connection of aluminum strips with getting inner channel between
aluminum strips.
The study of the plastic deformation process in hot rolling of aluminum strips
with aluminum wire will allow setting the technological features of manufacturing
process of these parts. A key point of producing such types of parts of solar collectors
is creating inner channel between aluminum stripes easier, cheaper and more effec-
tively. One of possible variants of its solution is a partial connection to the two alu-
minum strips with an aluminum wire between them during hot rolling.
Formulation of the problem
The aim of this research is to study the plastic deformation parameters of joint-
rolling the two aluminum strips with an aluminum wire between them to obtain an
aluminum plate with internal channels.
Condition of the problem
Questions of aluminum strips hot rolling were studied by many scientists. The au-
thors in [1] found that the bonding strength of the material in hot rolling can be com-
ISSN 1607-4556 (Print), ISSN 2309-6004 (Online) Геотехнічна механіка. 2016. № 128
151
pared with the original material strength. It was also found that the most important
parameter in the process of rolling is the initial temperature, the annealing tempera-
ture, elongation and roll speed. The most important factor is the temperature. It was
also found that the hot rolling gives greater bonding strength than the cold one. Influ-
ence of rolling temperature on the microstructure and mechanical properties of the
aluminum strips was investigated in [2].
Based on the studies [3] model compound bimetals multilayer has been devel-
oped, whereby the especially of anisotropy of deformation bounding were deter-
mined, it was analyzed the influence of such parameters as friction coefficient, de-
formation coefficient, roll radius on the quality metal compounds. Those parameters
could be used in our researches.
In a study [4] was determined dependence during the heat treatment of the influ-
ence of the frictional coefficient on the compound of aluminum strips. It is found that
the rate of bond strength increases with increasing annealing temperature, moreover,
the extreme value of strain for the compounds decreases with increasing annealing
temperature.
In a study [5] the processes of hot and cold rolling welding of two aluminum
strips with several thicknesses and varying deformation degrees and temperature
were researched. The strain and temperature limit were found at which the compound
of aluminum strips with hot and cold rolling take place.
Scientists [6] found that not only materials but geometry of the channels influence
on the quality of collector. In this study, production technology of multichannel col-
lector was optimized by rolling and partial welding. The various forms of channels
were tested experimentally and the most optimal form was identified.
The results and achievements of studies that were conducted earlier have been
studied and taken into attention in our experiment. A distinctive feature of the exper-
iment is the presence of aluminum wire between the aluminum strips.
Experimental part
For the experiments test specimens in the form of strips of aluminum alloy EN
AW-1050 and aluminum wire from the same alloy were prepared.
The aluminum plate size: 200 mm 70 mm 3 mm (Fig. 1), with holes for rivets in
order to the composition of the two aluminum strips of aluminum wire between them
during rolling was as a single blank without displacement. The aluminum wire of 1.5
mm diameter, 250 mm in length were used.
The experiment was conducted according to the following diagram (Fig. 2). The
two aluminum stripes and wires were degreased by alcohol and connected into the
composition strip - wire - strip and were fixed by rivets to prevent shift of the ele-
ments relative to each other during rolling. The simple was heated in a furnace to a
temperature of 500 0С. The rolling was conducted at the deformation degree of 30-
40%, for 220 mm diameter rolls.
Rolled samples were measured and had heat treatment in an oven at 2000С for
two hours.
ISSN 1607-4556 (Print), ISSN 2309-6004 (Online) Геотехнічна механіка. 2016. № 128
152
Figure 1 – The example of the experimental aluminum strips sample
Figure 2 – The scheme of the experiment
The results and their discussion
In the result of this experiment elongation coefficient, spread coefficient, defor-
mation coefficient were calculated. The measurements of rolling load also were cal-
culated during rolling within accuracy 1000 samples per second.
As a result of rolling with a degree of deformation of 30-31% (samples 1 and 2,
Table 1) there was no quality welding and the task has not been achieved. During
rolling with the deformation of 35% and more (samples 3-7, Table 1), surface weld-
ing was successful. According to the results of measurements elongation coefficient,
spread coefficient were calculated and they are proportional to the deformation coef-
ficient.
Table 1 – Deformations indicators
ISSN 1607-4556 (Print), ISSN 2309-6004 (Online) Геотехнічна механіка. 2016. № 128
153
№ Width after
rolling, mm
Length after
rolling, mm
Deformation co-
efficient, %
Elongation co-
efficient, %
Spread
coefficient, %
1 71,0 270 30,28 35,00 1,43
2 71,0 269 31,00 34,00 1,43
3 71,5 278 36,67 39,00 2,14
4 72,0 297 41,94 48,50 2,86
5 71,8 295 40,83 47,50 2,57
6 71,5 278 35,17 39,00 2,14
7 71,0 276 34,67 38,00 1,43
In the results of researches the border of the deformation degree during the hot
rolling was determined, at which welding of aluminum stripes with aluminum wires
between them take place. The visual sample of this experiment is shown in Fig. 3.
Figure 3 – Aluminum wire before and after rolling
During the experiments the measurements of speed and rolling load were con-
ducted for each experiment.
The simulation of the process by finite element software product Q-Form was
done as well. (Fig. 4) In a theoretical study with the help of the Q-Form software
were set the same process parameters as in experimental studies.
The velocity field was analyzed, that was obtained by simulation hot rolling alu-
minum strips, with aluminum wire.
As a result of simulation the velocity distribution of the metal during rolling was
obtained. The strip speed at the exit of the rolls is 143 mm / sec, strip speed at the in-
let of the rolls is 92 mm / s. At the figture 5 the velocity distribution in the field of de-
formation is shown.
ISSN 1607-4556 (Print), ISSN 2309-6004 (Online) Геотехнічна механіка. 2016. № 128
154
Figure 4 – Hot rolling aluminum plates simulation in Q-Form
Figure 5 – Field of speeds in hot rolling aluminum plates simulation
During the research the series of experimental rollings were carried out as well as
simulations to determine the effect of such technological parameters of the process as
temperature, degree of deformation and the diameter of the rolls on the rolling load
and the quality of the strips connection. As the result of research the satisfactory con-
vergence of experimental and theoretical data about the rolling force was received
(Fig. 6).
This conclusion makes it possible to lead further theoretical study of the effect of
temperature, degree of deformation and the diameter of the rolls on the strength and
quality of rolling.
ISSN 1607-4556 (Print), ISSN 2309-6004 (Online) Геотехнічна механіка. 2016. № 128
155
Figure 6 – The experimental and theoretical data about the rolling force
Conclusions
Making analyze of conducting studies it should be noticed the following. During
the hot rolling of aluminum strips with aluminum wire between them the velocity field,
elongation coefficient, spread coefficient and the deformation coefficient were re-
searched, dependence rolling load from rolling time was obtained for different degrees
of deformation. It was found experimentally that for quality welding strips with wire
between them the rolling load must be at least 35%. The comparison of the experimen-
tally obtained dependences with the theoretical calculations by computer simulation in
the software product Q-Form was conducted, which showed a high degree of reproduc-
ibility. Rationale for the use of this software will allow to reduce in the future the dura-
tion of experimental studies in determining the rational technological process parame-
ters of hot rolling of the two strips with aluminum wire inside to improve the quality of
welding them together in order to obtain plates with internal channels, which are used
in the manufacture of solar collector.
_____________________________
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____________________________________________
About the authors
Makeeva Anna Sergeevna, Doctoral Student in Metal forming Department named by Acad. A.P. Che-
kmaryov, National Metallurgical academy of Ukraine (NMetAU), Dnepropetrovsk, Ukraine,
makeeva@metal-forming.org
Kuzmenko Aleksandr Sergeevich, Student in Metal forming Department named by Acad. A.P. Che-
kmaryov, National Metallurgical academy of Ukraine (NMetAU), Dnepropetrovsk, Ukraine,
resaesh@gmail.com
Remez Oleg Anatoliyevich, Candidate of Technical Sciences (Ph.D), Associate Professor, Associate
Professor of Metal forming Department named by Acad. A.P. Chekmaryov, National Metallurgical academy
of Ukraine (NMetAU), Dnipropetrovsk, Ukraine, remez@metal-forming.org
Frolov Yaroslav Viktorovich, Doctor of Technical Sciences (D.Sc.), Professor, Head of Metal forming
Department named by Acad. A.P. Chekmaryov, National Metallurgical academy of Ukraine (NMetAU),
Dnepropetrovsk, Ukraine, frolov@metal-forming.org
Uwarow Igor, Student in Materials Science Department, Mechanical Engineering faculty, University of
Paderborn, Paderborn, Germany, igoruwarow@email.de
Gridin Aleksandr Yurievich, Doctor of Technical Science (D.Sc.), Professor, Chief Engineer in Materi-
als Science Department, Mechanical Engineering faculty, University of Paderborn, Paderborn, Germany,
grydin@lwk.upb.de
Об авторах
Макеева Анна Сергеевна, аспирант кафедры обработки металлов давлением им. акад.
А.П.Чекмарева, Национальная металлургическая академия Украины (НМетАУ), Днепропетровск,
Украина, makeeva@metal-forming.org
Кузьменко Александр Сергеевич, студент кафедры обработки металлов давлением им. акад.
А.П.Чекмарева, Национальная металлургическая академия Украины (НМетАУ), Днепропетровск,
Украина, resaesh@gmail.com
Ремез Олег Анатольевич, кандидат технических наук, доцент, доцент на кафедре обработки ме-
таллов давлением им. акад. А.П.Чекмарева, Национальная металлургическая академия Украины
(НМетАУ), Днепропетровск, Украина, remez@metal-forming.org
Фролов Ярослав Викторович, доктор технических наук, профессор, заведующий кафедрой об-
работки металлов давлением им. акад. А.П.Чекмарева, Национальная металлургическая академия
Украины (НМетАУ), Днепропетровск, Украина, frolov@metal-forming.org
http://www.sciencedirect.com/science/article/pii/S1359431114001525
http://www.sciencedirect.com/science/article/pii/S0921509304009062
http://www.sciencedirect.com/science/article/pii/S0266353809001298
http://www.sciencedirect.com/science/article/pii/S0261306910002335
http://www.sciencedirect.com/science/article/pii/S0261306909001848
http://www.sciencedirect.com/science/article/pii/S1359431114001525
mailto:makeeva@metal-forming.org
mailto:resaesh@gmail.com
https://mail.ukr.net/classic#sendmsg,to=JW8eF2L79u8NtuReFWVX9ucwFXi5JWJ
https://mail.ukr.net/classic#sendmsg,to=JW8eF2L79u8NtuReFWVX9ucwFXi5JWJ
mailto:grydin@lwk.upb.de
mailto:makeeva@metal-forming.org
mailto:resaesh@gmail.com
https://mail.ukr.net/classic#sendmsg,to=JW8eF2L79u8NtuReFWVX9ucwFXi5JWJ
https://mail.ukr.net/classic#sendmsg,to=JW8eF2L79u8NtuReFWVX9ucwFXi5JWJ
ISSN 1607-4556 (Print), ISSN 2309-6004 (Online) Геотехнічна механіка. 2016. № 128
157
Уваров Игорь, студент кафедры материаловедения, факультет машиностроения, Университет г.
Падерборн, Падерборн, Федеративная Республика Германия, igoruwarow@email.de
Гридин Александр Юрьевич, доктор технических наук, профессор, главный инженер кафедры
материаловедения, факультет машиностроения, Университет г. Падерборн, Падерборн, Федеративная
Республика Германия, grydin@lwk.upb.de
–––––––––––––––––––––––––––––––
Анотація. Стаття присвячена дослідженню технологічного процесу прокатки алюмініє-
вих штаб з алюмінієвою проволокою всередині для отримання деталей сонячного колектору.
Зачинення вугільних шахт, постійне зростання вартості нафтопродуктів та газу змушує звер-
татися до способів отримання відновлюваної (альтернативної) енергії. Актуальної є пробле-
ма вдосконалення технології виготовлення сонячних колекторів з метою покращення якості
та зменшення вартості виробу. У статті наведені результати експериментальних та теоретич-
них досліджень процесу гарячої прокатки алюмінієвих штаб с алюмінієвою проволокою між
ними для отримання внутрішніх каналів колектору. Досліджено поле швидкостей, отримані
залежності зміни сили прокатки для різних ступеней деформації. Встановлено, що для отри-
мання якісного зварювання штаб з проволокою між ними, ступінь деформації повинна бути
не менше 35%. Виконано порівняння залежностей, отриманих експериментально, з теорети-
чними розрахунками, що показали високий ступінь збіжності результатів. Наукова новизна
досліджень полягає в обґрунтуванні параметрів процесу гарячої прокатки двох алюмінієвих
полос з алюмінієвою проволокою всередині для парціального, часткового зварювання алю-
мінієвих штаб. Представлені результати можуть біти використані в технологічних процесах
отримання деталей сонячних колекторів в альтернативній енергетиці. Дослідження, резуль-
тати яких приведені в даній статті, виконані в межах сучасного спільного німецько-
українського проекту «Praxispartnershaft Metalurgie», який фінансується німецьким товарист-
вом академічних обмінів DAAD.
Ключові слова: гаряча прокатка, алюмінієва пластина, внутрішні канали, ступінь дефо-
рмації.
Аннотация. Статья посвящена исследованию технологического процесса прокатки алю-
миниевых полос с алюминиевой проволокой внутри для получения деталей солнечного кол-
лектора. Закрытие угольных шахт, постоянный рост стоимости нефтепродуктов и газа вы-
нуждает обращаться к способам получения возобновляемой (альтернативной) энергии. Акту-
альной является проблема совершенствования технологий изготовления солнечных коллек-
торов с целью улучшения качества и уменьшения стоимости изделий. В статье приведены
результаты экспериментальных и теоретических исследований процесса горячей прокатки
алюминиевых полос с алюминиевой проволокой между ними для получения внутренних ка-
налов коллектора. Исследовано поле скоростей, получены зависимости изменения силы про-
катки для различных степеней деформации. Установлено, что для получения качественного
сваривания полос с проволокой между ними степень деформации должна быть не менее 35
%. Выполнено сравнение зависимостей, полученных экспериментально, с теоретическими
расчетами, показавшее высокую степень сходимости результатов. Научная новизна исследо-
ваний заключается в обосновании параметров процесса горячей прокатки двух алюминиевых
полос с алюминиевой проволокой внутри для парциального, частичного сваривания алюми-
ниевых полос. Приведенные результаты могут быть использованы в технологических про-
цессах получения деталей солнечных коллекторов в альтернативной энергетике. Исследова-
ния, результаты которых приведены в данной статье, выполнены в рамках совместного
немецко-украинского проекта «Praxispartnershaft Metalurgie», финансируемого немецким
обществом академических обменов DAAD.
Ключевые слова: горячая прокатка, алюминиевая пластина, внутренние каналы, степень
деформации.
Статья поступила в редакцию 29.06.2016
Рекомендовано к печати д-ром техн. наук К.К. Софийским
mailto:grydin@lwk.upb.de
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