发明名称 |
СПОСОБ ПРОИЗВОДСТВА БЕСШОВНЫХ ГОРЯЧЕДЕФОРМИРОВАННЫХ ТРУБ БОЛЬШОГО ДИАМЕТРА |
摘要 |
FIELD: rolled tube production, namely processes for piercing ingots and billets for making seamless hot-deformed large-diameter tubes. ^ SUBSTANCE: method comprises steps of heating ingots and billets until yielding temperature; piercing them to hollow thick-wall sleeves in first skew rolling mill for further expanding to thin-wall sleeves in second skew rolling mill and rolling to large-diameter tubes in plants provided with automatic or pilger mills; piercing ingots and billets to thick-wall sleeves in first piercing mill with working rolls driven to rotation in one side and expanding billets to thin-wall sleeves in second piercing mill with working rolls driven to rotation in opposite side. ^ EFFECT: enhanced geometry of tubes, lowered metal consumption, improved efficiency of tube rolling plants. ^ 1 tbl |
申请公布号 |
RU2003123855(A) |
申请公布日期 |
2005.01.20 |
申请号 |
RU20030123855 |
申请日期 |
2003.07.29 |
申请人 |
ОАО "Чел бинский трубопрокатный завод" (RU) |
发明人 |
Сафь нов Анатолий Васильевич (RU);Фёдоров Александр Анатольевич (RU);Чикалов Сергей Геннадьевич (RU);Тазетдинов Валентин Иреклеевич (RU);Лапин Леонид Игнатьевич (RU);Романцов Игорь Александрович (RU);Ненахов Сергей Васильевич (RU);Панов Сергей Алексеевич (RU);Логовиков Валерий Андреевич (RU) |
分类号 |
B21B21/00 |
主分类号 |
B21B21/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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