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首页> 外国专利> METHOD FOR PRODUCING seamless hot machined pipe dimensions 610 × 36,53 × 3000-3450 mm of steel grade 15X5M for communication refineries with uniform mechanical properties along the length and increase the accuracy of the geometrical sizes

METHOD FOR PRODUCING seamless hot machined pipe dimensions 610 × 36,53 × 3000-3450 mm of steel grade 15X5M for communication refineries with uniform mechanical properties along the length and increase the accuracy of the geometrical sizes

机译：为通讯炼油厂生产尺寸为610×36,53×3000-3450毫米的15X5M级无缝热轧无缝钢管的方法，该钢管沿长度方向具有均匀的机械性能，并提高了几何尺寸的精度

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摘要

A method of manufacturing seamless pipes gorjachedeformirovannyh machined size 610 × 36.53 mm × 3000-3450 15X5M steels for communication refineries with uniform mechanical properties along the length and the geometric dimensions of high accuracy comprising ingots smelting in electrical or open-hearth furnaces, forging ingots size forgings 1400 ± 680 × 50 mm, refacing forging billet into tube size 650 ± 1 400 ± 10 × 50 mm, drilled through the center hole diameter of 100 ± 5 mm, temperatures of preforms n rib, firmware billets in rolling mill screw forward in the bottom end of the sleeve 390vn size 660 ×. × 2000-2100 mm to 375 mm diameter mandrel with hood μ = 1,41, rise 1.5-1.6% of the diameter and different speed deformation of the workpiece grip rollers to release the sleeve from the source strain, reheating the liner with cold or hot posad to plasticity temperature, flash-rollers of the sleeves in the mill helical rolling shrinkable end forward on the mandrel diameter of 500 mm size in the size or outer diameter of the lift 1 , 5-3,0% stretch μ = 1,4-1,5 and varying a deformation rate of the capture sleeve to roll out of the roll gap, the rolling of sleeves in a pilger commodity pipe size 550 × 25 mm × 8000-8700 caliber 562 mm with a tolerance on diameter + 1.25 / -1.0% and the wall 20 + / -5.0%, characterized in that the forging size of 1630 ± 650 × 50 mm grind and size are drilled in workpiece 630 ± 10 × 100 ± 5.0 × 1,630 ± 50 mm, the preform is heated to plasticity temperature , is sewn in a helical rolling mill on mandrel with a diameter of 350 mm size or in size with the rise of the diameter of not more than 3.2% in the sleeve 640 × 365 ext. 2070-2360 mm ×
机译：一种制造尺寸为610×36.53 mm×3000-3450 15X5M的无缝管gorjachedeformirovannyh的方法，用于通讯炼油厂，沿长度和几何尺寸具有均匀的机械性能，包括在电炉或平炉中冶炼的锭，锻造的锭尺寸锻件1400±680×50 mm，将锻坯改制成650±1400±10×50 mm的管尺寸，钻过中心孔直径100±5 mm，预成型坯的温度为肋，轧制机中的固件坯向前拧入套筒390vn的底端尺寸660×。 ×2000-2100毫米至375毫米直径的芯轴，带罩μ= 1,41，提高直径的1.5-1.6％，工件抓紧辊以不同的速度变形，以使套筒从源应变中释放出来，通过冷或热的方式对衬套进行重新加热热萨德塑性温度，在研磨机中螺旋500毫米规格的在升降机1，5-3,0％拉伸μ= 1的尺寸或外径的心轴直径的滚动收缩端向前套筒的闪光辊4-1,5并改变捕获套筒的变形速率以从辊隙中滚动出来，在直径1.25 mm的550 mm×25 mm×8000-8700口径pilger商品管道中滚动套筒/ -1.0％和壁面20 + / -5.0％，其特征在于，在工件630±10×100±5.0×1,630±50 mm中钻出1630±650×50 mm的锻件尺寸和研磨尺寸。加热至可塑温度，然后将其缝制在直径350毫米或直径随直径上升的直径350毫米的心轴上的螺旋轧机中f套筒640×365 ext中直径不大于3.2％。 2070-2360毫米×

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