Method for manufacturing seamless steel pipe or tube
    1.
    发明授权
    Method for manufacturing seamless steel pipe or tube 有权
    制造无缝钢管或管的方法

    公开(公告)号:US07325429B2

    公开(公告)日:2008-02-05

    申请号:US11603205

    申请日:2006-11-22

    IPC分类号: B21B19/04

    摘要: A round billet containing, by mass %, 10.50 to 14.00% of Cr with a value represented by the equation of “Cr+4Si−(22C+0.5Mn+1.5Ni+30N)” of not more than 9.0%, wherein the symbols of the elements represent the contents, by mass %, of the elements in the steel, is heated at a soaking temperature of 1100 to 1250 ° C. so that an in-furnace time (min) is not less than “0.5×Diameter of the round billet (mm)”, and then pierced and rolled with a piercing efficiency by a piercing mill of not less than 50%, a value regulated by the equation: “{(Diameter of the round billet−Roll gap at the foremost end of the plug)/Diameter of the round billet}×100” of not more than 8.0, and a plug shape represented by the equation: “Radius of foremost end of the plug (mm)/Diameter of the round billet (mm)” of 0.06 to 0.17. The thus-manufactured high-Cr seamless steel pipe or tube has excellent internal surface properties with minimized internal surface defects.

    摘要翻译: 一种圆形坯料,其以质量%计含有由“Cr + 4Si-(22C + 0.5Mn + 1.5Ni + 30N)”表示的值为10.00%以下的值为10.50〜14.00%的Cr,其中符号 的元素表示钢中的元素的质量%,在1100〜1250℃的均热温度下加热,炉内时间(min)不小于 圆形坯料(mm)“,然后通过穿孔磨机刺穿而不破坏50%的穿孔轧制,由以下等式调节的值:”{((最前端的圆坯 - 辊间隙的直径) 插头)/圆形坯料的直径××××××××××××××××××,以及由下式所示的插头形状:“插头前端半径(mm)/圆钢坯直径(mm)”为0.06 至0.17。 如此制造的高Cr无缝钢管或管具有优异的内表面性能,内表面缺陷最小。

    Method for manufacturing seamless steel pipe or tube
    2.
    发明申请
    Method for manufacturing seamless steel pipe or tube 有权
    制造无缝钢管或管的方法

    公开(公告)号:US20070062238A1

    公开(公告)日:2007-03-22

    申请号:US11603205

    申请日:2006-11-22

    IPC分类号: B21B19/04

    摘要: A round billet containing, by mass %, 10.50 to 14.00% of Cr with a value represented by the equation of “Cr+4Si−(22C+0.5Mn+1.5Ni+30N)” of not more than 9.0%, wherein the symbols of the elements represent the contents, by mass %, of the elements in the steel, is heated at a soaking temperature of 1100 to 1250 ° C. so that an in-furnace time (min) is not less than “0.5×Diameter of the round billet (mm)”, and then pierced and rolled with a piercing efficiency by a piercing mill of not less than 50%, a value regulated by the equation: “{(Diameter of the round billet−Roll gap at the foremost end of the plug)/Diameter of the round billet} ×100” of not more than 8.0, and a plug shape represented by the equation: “Radius of foremost end of the plug (mm)/Diameter of the round billet (mm)” of 0.06 to 0.17. The thus-manufactured high-Cr seamless steel pipe or tube has excellent internal surface properties with minimized internal surface defects.

    摘要翻译: 一种圆形坯料,其以质量%计含有由“Cr + 4Si-(22C + 0.5Mn + 1.5Ni + 30N)”表示的值为10.00%以下的值为10.50〜14.00%的Cr,其中符号 的元素表示钢中的元素的质量%,在1100〜1250℃的均热温度下加热,炉内时间(min)不小于 圆形坯料(mm)“,然后通过穿孔磨机刺穿而不破坏50%的穿孔轧制,由以下等式调节的值:”{((最前端的圆坯 - 辊间隙的直径) 插头)/圆形坯料的直径××××××××××××××××××,以及由下式所示的插头形状:“插头前端半径(mm)/圆钢坯直径(mm)”为0.06 至0.17。 如此制造的高Cr无缝钢管或管具有优异的内表面性能,内表面缺陷最小。

    Apparatus and method for drawing continuous fiber
    5.
    发明申请
    Apparatus and method for drawing continuous fiber 失效
    连续纤维拉丝装置及方法

    公开(公告)号:US20020043091A1

    公开(公告)日:2002-04-18

    申请号:US09851517

    申请日:2001-05-08

    IPC分类号: B21D037/16

    摘要: An apparatus and method is disclosed for drawing continuous metallic wire having a first diameter to a metallic fiber having a reduced second diameter. A feed mechanism moves the wire at a first linear velocity. A laser beam heats a region of the wire to an elevated temperature. A draw mechanism draws the heated wire at a second and greater linear velocity for providing a drawn metallic fiber having the reduced second diameter.

    摘要翻译: 公开了一种用于将具有第一直径的连续金属丝拉制成具有减小的第二直径的金属纤维的装置和方法。 进给机构以第一线速度移动线。 激光束将导线的区域加热到升高的温度。 牵引机构以第二和更大的线速度牵引加热的线,以提供具有减小的第二直径的拉伸金属纤维。

    Plain bearing with overlay
    6.
    发明授权
    Plain bearing with overlay 失效
    平面轴承与覆盖

    公开(公告)号:US6163961A

    公开(公告)日:2000-12-26

    申请号:US452873

    申请日:1999-12-02

    IPC分类号: F16C33/14 B21D53/00 B23P17/00

    摘要: A method of making a multi-layer plain bearing comprises roll-bonding a relatively soft aluminum-tin alloy to a harder aluminum-based bearing substrate and then roll-bonding the composite to a steel backing. Following heat treatment conventional for reticulation of the aluminum-tin alloy the surface is machined to give a precise overall bearing thickness of which the aluminum-tin overlay is in the range of 0.01-0.10 mm, typical of an overlay but having greater fatigue strength and war resistance than conventional electro-deposited materials. Alternatively, the overlay substrate and backing strips may be roll-bonded simultaneously.

    摘要翻译: 制造多层滑动轴承的方法包括将相对软的铝 - 锡合金辊压到更硬的铝基轴承基底上,然后将复合材料辊压到钢背衬上。 在常规用于网状铝 - 锡合金网状的热处理之后,加工表面以提供精确的总体轴承厚度,其中铝 - 锡覆盖层的厚度范围为0.01-0.10mm,典型的覆盖层具有较大的疲劳强度, 耐久性比传统的电沉积材料。 或者,覆盖基板和背衬条可以同时卷绕。

    Press forging of molybdenum or molybdenum alloy parts
    10.
    发明授权
    Press forging of molybdenum or molybdenum alloy parts 失效
    压锻钼或钼合金零件

    公开(公告)号:US4821554A

    公开(公告)日:1989-04-18

    申请号:US9433

    申请日:1987-02-02

    IPC分类号: B21J5/00 C22F1/18 B21J1/02

    CPC分类号: B21J5/00 C22F1/18 Y10S72/70

    摘要: A method is disclosed for deforming a molybdenum based metal part, which involves press forging a part made of material selected from the group consisting of molybdenum metal and molybdenum metal alloys, at a temperature of from about 1700.degree. F. to about 2300.degree. F. at an average strain rate of from about 5 inches per minute to about 20 inches per minute.

    摘要翻译: 公开了一种用于使钼基金属部件变形的方法,该方法包括在从约1700°F至约2300°F的温度下压制由选自钼金属和钼金属合金的材料制成的部件。 平均应变速率为约5英寸/分钟至约20英寸/分钟。