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    • 4. 发明授权
    • Method for connecting superalloy components
    • 连接超合金部件的方法
    • US4750946A
    • 1988-06-14
    • US828522
    • 1986-02-12
    • Bernd JahnkeGernot GessingerHans RydstadRobert Singer
    • Bernd JahnkeGernot GessingerHans RydstadRobert Singer
    • B23K20/00B23K20/02B23K20/233B23K20/24C22F1/10
    • B23K20/02B23K20/233B23K20/24
    • Components (5) in a superalloy, in particular a dispersion hardened nickel based alloy, are connected together by pressure bonding in the solid condition with the greatest possible limitation of the overall deformation of the complete components (5) by lateral restraint (7), the actual bonding zone (6) having short-term intensive dynamic plastic flow imposed on it and, taking account of the deformation temperature, the local deformation rate .epsilon..sub.l and the local deformation .epsilon..sub.l referred to the bonding zone (6) are matched together in such a way that the driving force during the subsequent heat treatment of the complete workpiece above the recrystallization temperature is sufficient to force the formation of coarse grain under all conditions. It can then be assumed that, in general, the expression ##EQU1## h.sub.o =height of the bonding zone (6) before connection, h.sub.f =height of the bonding zone (6) after connection,D.sub.Ni =the temperature dependent diffusion coefficient of Ni,is within the limits 10 and 20. The nickel based superalloys of principal interest should be connected in a maximum total bonding time of 20 s, the average value of .epsilon..sub.l being at least 0.02 s.sup.-1 and .epsilon..sub.l being at least 0.1.
    • 高温合金(特别是分散硬化的镍基合金)中的组分(5)通过在固体状态下的压力粘合而连接在一起,同时通过横向约束(7)可以最大程度地限制整个组件(5)的整体变形, 实际粘结区域(6)在其上施加有短期强烈的动态塑性流动,并且考虑到变形温度,将局部变形率ε1和参考粘合区域(6)的局部变形ε1相匹配 使得在整个工件的后续热处理中的驱动力高于再结晶温度足以在所有条件下强制形成粗晶粒。 然后,可以假设,通常,连接之前的键合区(6)的高度(h)=连接区(6)之后的表达式log(ε1DNi-1m2)其中< ,DNi = Ni的温度依赖扩散系数在10和20的范围内。主要感兴趣的镍基超级合金应连接在20s的最大总结合时间内,ε1的平均值至少为0.02s -1和ε1至少为0.1。
    • 7. 发明授权
    • Joining method
    • 加盟方式
    • US4606778A
    • 1986-08-19
    • US665293
    • 1984-10-26
    • Bernd Jahnke
    • Bernd Jahnke
    • B23K20/00B23K20/16B23K35/00B23P15/04F01D5/18C21D8/00
    • B23P15/04B23K20/16B23K35/004F01D5/187
    • The invention relates to a joining method for the production of a component from two or more constructional elements which are manufactured from a highly distortion-resistant metallic material, in particular a material based on nickel or iron. The constructional elements and the interlayer are manufactured from an oxide dispersion-hardened material, and are joined together with insertion of the interlayer to give the component. The interlayer is in an unrecrystallized fine-grained plastic state before the joining process, and undergoes recrystallization, as a result of heat treatment, only after the joining process, which is carried out at a temperature of 800 to 1,100 degrees centigrade and under a pressure of 1 to 200 Mpa.
    • 本发明涉及一种从两种或多种结构元件制造组件的接合方法,其由高抗变形金属材料制成,特别是基于镍或铁的材料。 结构元件和中间层由氧化物分散硬化材料制成,并通过中间层的插入而接合在一起,从而形成部件。 中间层在接合过程之前处于未再结晶的细粒状塑性状态,并且只有在800〜1100℃的温度和压力下进行的接合工序之后,进行热处理后的重结晶 1〜200Mpa。
    • 9. 发明授权
    • Process for the non-cracking energy beam welding of high temperature
shaped parts
    • 高温部件非裂纹能量焊接工艺
    • US4409462A
    • 1983-10-11
    • US292007
    • 1981-08-11
    • Bernd Jahnke
    • Bernd Jahnke
    • B23K26/00B23K15/00B23K26/32
    • B23P6/005B23K15/0093B23P6/002
    • In order to join by welding shaped parts, in particular, of cast superalloys based on nickel or cobalt, without cracking, by means of a beam of energy, preferably an electron beam, according to the invention the weld zone and an adjacent area of adequate size, often the entire part, are heated to a preheat temperature between 1000.degree. to 1250.degree. C., preferably between 1070.degree. and 1180.degree. C., and maintained at this temperature at least until the temperature is at least extensively equalized. The weld surfaces in contact with each other are then melted and welded together by means of the energy beam. Subsequently, the weld zone and the adjacent area are cooled uniformly.In this manner, a welded joint is obtained having mechanical properties that are equal to or only slightly reduced compared to those of the initial material and containing no pores or cracks.The process according to the invention is particularly suitable for the production or repair of hot parts of gas or steam turbines, such as, for example, turbine blades and/or turbine housings.
    • 为了通过焊接成形部件,特别是通过根据本发明的能量束,优选电子束的焊接成型部件,特别是基于镍或钴的铸造超级合金而不产生裂纹,焊接区域和相邻的足够的区域 经常将整个部件的尺寸加热至1000℃至1250℃之间,优选1070℃至1180℃之间的预热温度,并保持在该温度至少直到该温度至少均匀。 然后将彼此接触的焊接表面通过能量束熔化并焊接在一起。 随后,焊接区域和相邻区域均匀地冷却。 以这种方式,获得的焊接接头具有与初始材料相同或仅略微降低的机械性能,并且不包含孔或裂纹。 根据本发明的方法特别适用于生产或修理气体或蒸汽轮机的热部件,例如涡轮机叶片和/或涡轮机壳体。