SU270143A1 - METHOD OF CONTACT BUTT WELDING BY MOLDING - Google Patents
METHOD OF CONTACT BUTT WELDING BY MOLDINGInfo
- Publication number
- SU270143A1 SU270143A1 SU1261665A SU1261665A SU270143A1 SU 270143 A1 SU270143 A1 SU 270143A1 SU 1261665 A SU1261665 A SU 1261665A SU 1261665 A SU1261665 A SU 1261665A SU 270143 A1 SU270143 A1 SU 270143A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- stage
- butt welding
- molding
- produced
- welding
- Prior art date
Links
- 238000000465 moulding Methods 0.000 title 1
- 238000003466 welding Methods 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 description 3
- 210000001503 Joints Anatomy 0.000 description 2
- 239000010802 sludge Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
Description
Изобретение относитс к области контактной стыковой сварки.This invention relates to flash butt welding.
Известен способ контактной стыковой сварки , по которому сварка состоит из оплавлени и осадки. Осадка производитс частично под током и частично при выключенном токе.There is a known method of flash butt welding, in which welding consists of melting and sludge. The sludge is produced partly under current and partly when the current is off.
Предлагаемый способ отличаетс от известного тем, что осадку производ т в два этапа . Сначала, в момент закрыти зазора, с максимально возможной скоростью, например 80-100 мм/сек. При этом величину осадки выбирают из услови полного закрыти зазора по всему торцу. На втором этапе, после закрыти зазора, осадку производ т с пониженной скоростью, например 15-20 мм/сек, на оставшуюс величину. Сварочный ток выключают на втором этапе осадки.The proposed method differs from the known one in that the precipitate is produced in two stages. First, at the moment of closing the gap, at the maximum possible speed, for example, 80-100 mm / sec. In this case, the amount of precipitation is chosen from the condition of complete closure of the gap over the entire face. In the second stage, after closing the gap, the draft is produced at a reduced rate, for example 15-20 mm / s, for the remaining amount. The welding current is switched off at the second stage of precipitation.
Предложенный способ позвол ет обеспечить требуемое увеличение длительности осадки под током, дополнительный нагрев стыка и получение соединений более высокого качества за счет того, что сварные соединени успевают полностью сформироватьс , наход сь вThe proposed method allows to provide the required increase in the duration of precipitation under current, additional heating of the joint and obtaining joints of higher quality due to the fact that the welded joints have time to fully form, being
нагретом состо нии. По окончании сварки усилие осадки не снимаетс , и охлаждение стыка происходит под воздействием этого усили , что исключает возможность образовани гор чих трещин в зоне сварки.heated condition. At the end of welding, the slump force is not relieved, and the joint is cooled by this force, which eliminates the possibility of hot cracks in the weld zone.
Предмет изобретени Subject invention
Claims (2)
Publications (1)
Publication Number | Publication Date |
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SU270143A1 true SU270143A1 (en) |
Family
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2510315C1 (en) * | 2013-02-08 | 2014-03-27 | Василий Семенович Калмыков | Method of butt fusion welding |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2510315C1 (en) * | 2013-02-08 | 2014-03-27 | Василий Семенович Калмыков | Method of butt fusion welding |
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