首页> 外国专利> MANUFACTURING METHOD OF THREE-LAYERED HOLLOW CENTRIFUGAL CAST SECTIONS FROM DIFFICULT-TO-FORM STEEL GRADES AND ALLOYS, WHICH ARE CLADDED WITH DUCTILE CARBON STEEL GRADES, AND ROLLING FROM THEM ON PIPE ROLLING UNITS WITH PILGER MILLS OF HOT-ROLLED MECHANICALLY TREATED MERCHANTABLE AND PROCESS PIPES OF LARGE AND MEAN DIAMETERS

MANUFACTURING METHOD OF THREE-LAYERED HOLLOW CENTRIFUGAL CAST SECTIONS FROM DIFFICULT-TO-FORM STEEL GRADES AND ALLOYS, WHICH ARE CLADDED WITH DUCTILE CARBON STEEL GRADES, AND ROLLING FROM THEM ON PIPE ROLLING UNITS WITH PILGER MILLS OF HOT-ROLLED MECHANICALLY TREATED MERCHANTABLE AND PROCESS PIPES OF LARGE AND MEAN DIAMETERS

机译：由难于成形的钢格架和合金制成的三层空心离心铸造截面的制造方法，其中包括韧性碳钢格架，并从它们上轧制在管轧制单元上，并带有经热轧加工的球状粉状粉末大和中径管

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FIELD: metallurgy.;SUBSTANCE: three-layered hollow centrifugal cast billets are cast from difficult-to-deform steel grades and alloys, which are cladded with ductile steels of carbon grades, with the size of 400-650×3200±100 mm with the ratio of thicknesses of ductile layers, which is restricted by mathematical relationship, their heating is performed to the temperature that is higher by 10-20°C than ductility temperature interval of difficult-to-form steel grades and alloys and rolling on the pilger mill with swaging as to the diameter, the value of which is decreased from 180 to 100 mm with increase of pipe diameter. Seeding on the pipe length equal to length of recoil of a supply unit is performed with supply of the billet to the deformation zone, which is equal to (0.5-0.7) of supply value m_unit at the steady-state rolling process, and rolling of the pilger head with supply equal to (1.1-1.25) m_unit.;EFFECT: reduction of consumption of expensive metal; increase of efficiency of a pipe rolling unit with pilger mills; reduction of pipe cost.

机译：领域：冶金;物质：三层空心离心铸造坯料是由难变形的钢种和合金铸造而成，并包覆有400-650×3200±100 mm尺寸的碳素级延性钢。延性层的厚度比受数学关系的限制，将其加热至比难以成型的钢种和合金的延性温度区间高10-20°C并在皮尔格上轧制直径的锻造，随着管道直径的增加，其值从180毫米降低到100毫米。在将钢坯供应到变形区的情况下，在等于供应单元反冲长度的管道长度上进行播种，这等于稳定状态下供应值m _{unit 的（0.5-0.7）状态轧制过程，以及供应量等于（1.1-1.25）m _{单位的皮尔根头轧制。效果：减少了昂贵金属的消耗;使用皮尔杰轧机提高管轧制机组的效率;降低管道成本。}}

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公开/公告号RU2550040C2

专利类型
公开/公告日2015-05-10

原文格式PDF
申请/专利权人 OTKRYTOE AKTSIONERNOE OBSHCHESTVO CHELJABINSKIJ TRUBOPROKATNYJJ ZAVOD;
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申请/专利号RU20130133077
发明设计人 NIKITIN KIRILL NIKOLAEVICH;MATJUSHIN ALEKSANDR JUREVICH;GOLOVINOV VALERIJ ALEKSANDROVICH;BUBNOV KONSTANTIN EHDUARDOVICH;PASHNIN VLADIMIR PETROVICH;SAFJANOV ALEKSANDR ANATOLEVICH;OSADCHIJ VLADIMIR JAKOVLEVICH;FEDOROV ALEKSANDR ANATOLEVICH;SAFJANOV ANATOLIJ VASILEVICH;EREMIN VIKTOR NIKOLAEVICH;SHMAKOV EVGENIJ JUREVICH;KLIMOV NIKOLAJ PETROVICH;
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申请日2013-07-16
分类号B21B21/00;
国家 RU
入库时间 2022-08-21 14:56:23

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