In this work dynamics of temperature fields of the weld obtained at low air temperatures at various durations of keeping pipe ends in warm shelter is investigated, based on mathematical modeling of the thermal process. Calculations have shown that with insufficient heating of pipes in shelter, the dynamics of temperature fields during welding deviates from the dynamics of standard welding. Calculations show the boundaries of the melt under various welding conditions. Recommendations for welding polyethylene pipes at low temperatures using shelters are given.

1.
H. S.
Lai
,
N. N.
Tun
,
S. H.
Kil
, and etc.,
Journal of Mechanical Science and Technology
30
(
5
),
1973
1981
(
2016
).
2.
F.
Zakar
and
M.
Budinski
,
Engineering Failure Analysis
82
,
481
492
(
2017
).
3.
P.
Pokharel
,
Y.
Kim
, and
S.
Choi
,
International Journal of Polymer Science
2016
,
1
13
(
2016
).
4.
N.
Avdonin
,
Matematicheskoe opisanie protsessov kristallizatsii
(
Zinatne
,
Riga
,
1980
), pp.
73
92
.
5.
Z.
Chebbo
,
M.
Vincent
,
A.
Boujlal
, and etc.,
Polymer Engineering And Science
55
(
1
),
123
131
(
2015
).
6.
A. A.
Samarskij
,
The theory of difference schemes
(
Basel. Marcel Dekker Inc
,
NY
,
2001
), pp.
407
438
.
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