SU472704A1 - The method of rolling tubes on the rolls - Google Patents
The method of rolling tubes on the rollsInfo
- Publication number
- SU472704A1 SU472704A1 SU1994989A SU1994989A SU472704A1 SU 472704 A1 SU472704 A1 SU 472704A1 SU 1994989 A SU1994989 A SU 1994989A SU 1994989 A SU1994989 A SU 1994989A SU 472704 A1 SU472704 A1 SU 472704A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rolling
- rolls
- mill
- sleeve
- roll
- Prior art date
Links
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Description
Изобретение относитс к трубопрокатному производству, а именно к прокатке труб на косовалковом стане.The invention relates to pipe production, in particular to rolling pipes on a roll-up mill.
Известен способ прокаткн труб на трсхвалковом стане на длинной онра.вке, при котором дл снижени концевых отходов закрывают очаг деформации нри прокатке концов размещенными в зазорах между валками линейками путем х приближени к оси прокатки.There is a known method of rolling pipes on a three-way mill for a long time, in which, to reduce end waste, the deformation zone is closed by rolling the ends of the rulers placed in the gaps between the rolls by approaching the axis of rolling.
Известный способ не приемлем на трехвалковых станах, не имеющих линеек, и в случае невозможности их размещени между валками .The known method is not acceptable on three-roll mills that do not have lines, and if they cannot be placed between the rollers.
Дл снижени концевых дефектов в 1федложенном способе на передний и задыши концы гильзы подают технологическую смазку.In order to reduce the end defects in the following method, lubricant is applied to the front and to the asses of the ends of the liner.
Способ ирокатки труб осуществл етс следующим образом.The pipe roll method is as follows.
Прощита гильза зар жаетс в переднем желобе раскатного трехвалкового стана оправкой и задаетс в стан. При движении оправки с гильзой к раскатному стану во входной воройке иодают технологическую смазку на передний конец гильзы, равньп 160-200 .1г.и. При иодходе к очагу деформации заднего кэнца гильзы на него тоже наноситс технологическа смазка. Подача смазки в очаг деформации увеличивает скольжение металла относительно валка, снижает скорость процесса, увеличиваютс частные деформации, уменьшаетс поперечна деформаци , что обеспечпвает стабпльную прокатку ко1щевых участков гильзы п снособствует получению трубы с посто нным наружным диаметром по всей ее длине.The sleeve sleeve is charged in the front groove of the three-roll mill with a mandrel and is set into the mill. When moving the mandrel with the sleeve to the rolling mill in the inlet, iodine technological lubricant to the front end of the sleeve, equal to 160-200.1g.i. In addition, a lubricant is applied to the center of deformation of the back end of the sleeve. Supply of lubricant to the deformation zone increases the slip of the metal relative to the roll, reduces the speed of the process, increases partial deformation, decreases lateral deformation, which ensures stable rolling of the liner sections and contributes to obtaining a pipe with a constant outer diameter along its entire length.
Предмет изобретени Subject invention
Способ прокатки труб на кocoвaлкэзo i стане, включающий деформацию нагретой гильзы валками на онравке, отчищающийс тем, что, с целью снижени концевых дефектов на трубах, на передний и задний концы :юдают технологическую смазк .The method of rolling tubes on a cocovalco mill, including the deformation of a heated sleeve with rollers on a roll, which is cleared by the fact that, in order to reduce the end defects on the tubes, the front and rear ends are: process lubricant.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1994989A SU472704A1 (en) | 1974-02-13 | 1974-02-13 | The method of rolling tubes on the rolls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1994989A SU472704A1 (en) | 1974-02-13 | 1974-02-13 | The method of rolling tubes on the rolls |
Publications (1)
Publication Number | Publication Date |
---|---|
SU472704A1 true SU472704A1 (en) | 1975-06-05 |
Family
ID=20575377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1994989A SU472704A1 (en) | 1974-02-13 | 1974-02-13 | The method of rolling tubes on the rolls |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU472704A1 (en) |
-
1974
- 1974-02-13 SU SU1994989A patent/SU472704A1/en active
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