Diffusion bonded metallic catalyst carrier and production thereof
    1.
    发明授权
    Diffusion bonded metallic catalyst carrier and production thereof 失效
    扩散接合金属催化剂载体及其生产

    公开(公告)号:US06761857B1

    公开(公告)日:2004-07-13

    申请号:US09423944

    申请日:2000-02-22

    IPC分类号: F01N328

    摘要: A honeycomb body, which is composed in such a manner that a strip of corrugated foil made of heat-resistant stainless steel containing aluminum and a strip of flat foil made of stainless steel are alternately wound or laminated on each other, is incorporated into an outer cylinder made of metal and integrated into one body by means of diffusion bonding, so that a diffusion bonded metallic catalyst carrier can be formed. Surface roughness of the strip of foil after the completion of diffusion bonding is 0.001 to 2.0 &mgr;m when it is expressed by center line average height Ra, and no sintered bridges are formed at both end portions of the diffusion bonded section in the longitudinal direction. The catalyst carrier is manufactured in a condition so that &lgr;b, which is defined by &lgr;b=6.8×10−12×&dgr;f−1×F1/2×Ra−1/2×T1/4×exp(15000/T)×b1/2, can be in a range from 8 to 20 where thickness of the strip of foil is &dgr;f (m), average roughness of the foil surface is Ra (m), back tension in the case of winding is F (kgf), contact width of the piece of flat foil with the piece of corrugated foil is b (m), heat treatment temperature is T (K), and degree of vacuum is Pout (Pa), under the condition that 7.52×109×exp(−35000/T)≧8×Pout.

    摘要翻译: 一种蜂窝体,其特征在于,将含有铝的耐热不锈钢的波纹状箔条和由不锈钢制成的平箔条彼此交替地卷绕或层叠而成的外壳 由金属制成的圆筒,通过扩散接合而结合成一体,从而可以形成扩散接合的金属催化剂载体。 扩散接合完成后的箔条的表面粗糙度在以中心线平均高度Ra表示时为0.001〜2.0μm,在扩散接合部的长度方向的两端部不形成烧结桥。 催化剂载体的制造条件使得由万能片的厚度为(m),箔表面的平均粗糙度为Ra(m),由 卷绕情况下的张力为F(kgf),平片箔与波纹箔片的接触宽度为b(m),热处理温度为T(K),真空度为Pout(Pa) ,在7.52×10 9×exp(-35000 / T)> = 8×Pout的条件下。

    Diffusion bonded metallic catalyst carrier and production thereof
    4.
    发明授权
    Diffusion bonded metallic catalyst carrier and production thereof 失效
    扩散接合金属催化剂载体及其生产

    公开(公告)号:US07229598B2

    公开(公告)日:2007-06-12

    申请号:US10830885

    申请日:2004-04-23

    摘要: A honeycomb body, which is composed in such a manner that a strip of corrugated foil made of heat-resistant stainless steel containing aluminum and a strip of flat foil made of stainless steel are alternately wound or laminated on each other, is incorporated into an outer cylinder made of metal and integrated into one body by means of diffusion bonding, so that a diffusion bonded metallic catalyst carrier can be formed. Surface roughness of the strip of foil after the completion of diffusion bonding is 0.001 to 2.0 μm when it is expressed by center line average height Ra, and no sintered bridges are formed at both end portions of the diffusion bonded section in the longitudinal direction. The catalyst carrier is manufactured in a condition so that λb, which is defined by λb=6.8×10−12×δf−1×F1/2×Ra−1/2×T1/4×exp(15000/T)×b1/2, can be in a range from 8 to 20 where thickness of the strip of foil is δf (m), average roughness of the foil surface is Ra (m), back tension in the case of winding is F (kgf), contact width of the piece of flat foil with the piece of corrugated foil is b (m), heat treatment temperature is T (K), and degree of vacuum is Pout (Pa), under the condition that 7.52×109×exp(−35000/T)≧8×Pout.

    摘要翻译: 一种蜂窝体,其特征在于,将含有铝的耐热不锈钢的波纹状箔条和由不锈钢制成的平箔条彼此交替地卷绕或层叠而成的外壳 由金属制成的圆筒,通过扩散接合而结合成一体,从而可以形成扩散接合的金属催化剂载体。 扩散接合完成后的箔条的表面粗糙度在以中心线平均高度Ra表示时为0.001〜2.0μm,在扩散接合部的长度方向的两端部不形成烧结桥。 催化剂载体的制造条件使得由<?in-line-formula description =“In-line Formulas”end =“lead”→> lambdab = 6.8×10-12 -12 xdeltaf -1 xF <1/2> xRa -1/2 xT 1/4×xexp(15000 / T )xb <1/2> <?在线公式描述=“在线公式”end =“tail”?>可以在8至20的范围内,其中, 箔是三角形(m),箔表面的平均粗糙度为Ra(m),在卷绕的情况下的背张力为F(kgf),平片箔与波纹箔片的接触宽度为b(m ),热处理温度为T(K),真空度为Pout(Pa)时,在7.52×10 9×(35000 / T)> = 8×Pout的条件下。